Annotation of html5/spec/syntax.html, revision 1.721
1.2 mike 1: <!DOCTYPE HTML>
1.258 mike 2: <!-- when publishing, change bits marked ZZZ --><html lang="en-US-x-Hixie"><head><title>9 The HTML syntax — HTML 5</title><style type="text/css">
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62:
63: h2 { page-break-before: always; }
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1.671 mike 75: div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
1.1 mike 76:
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101: .annotation span { border: none ! important; }
1.1 mike 102: .note { color: green; background: transparent; font-family: sans-serif; }
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1.149 mike 142: .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
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1.1 mike 144:
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168:
1.671 mike 169: #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
170: #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
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173: #configUI input[type=button] { display: block; margin: auto; }
1.267 mike 174: </style><style type="text/css">
175:
1.292 mike 176: .applies thead th > * { display: block; }
177: .applies thead code { display: block; }
178: .applies tbody th { whitespace: nowrap; }
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181:
1.267 mike 182: .matrix, .matrix td { border: none; text-align: right; }
183: .matrix { margin-left: 2em; }
184:
185: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
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187: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
188:
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202: #table-example-1 tbody td:first-child + td { width: 10em; }
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204: #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
205:
206: .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
207: .apple-table-examples * { font-family: "Times", serif; }
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213: .apple-table-examples td { text-align: right; vertical-align: top; }
214: .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
215: .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
216: .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
217: .apple-table-examples sup { line-height: 0; }
218:
1.671 mike 219: </style><link href="data:text/css," rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20%7B%20background:%20%23FFEEEE;%20%7D" rel="alternate stylesheet" title="Highlight implementation requirements"><link href="data:text/css," id="complete" rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D" id="author" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20%7B%20background:%20%23FFEEEE;%20%7D" id="highlight" rel="alternate stylesheet" title="Highlight implementation requirements"><script>
220: function getCookie(name) {
221: var params = location.search.substr(1).split("&");
222: for (var index = 0; index < params.length; index++) {
223: if (params[index] == name)
224: return "1";
225: var data = params[index].split("=");
226: if (data[0] == name)
227: return unescape(data[1]);
228: }
229: var cookies = document.cookie.split("; ");
230: for (var index = 0; index < cookies.length; index++) {
231: var data = cookies[index].split("=");
232: if (data[0] == name)
233: return unescape(data[1]);
234: }
235: return null;
236: }
237: function load(script) {
238: var e = document.createElement('script');
239: e.setAttribute('src', 'http://www.whatwg.org/specs/web-apps/current-work/' + script + '?' + encodeURIComponent(location) + '&' + encodeURIComponent(document.referrer));
240: document.body.appendChild(e);
241: }
242: function init() {
243: if (location.search == '?slow-browser')
244: return;
245: var configUI = document.createElement('div');
246: configUI.id = 'configUI';
247: document.body.appendChild(configUI);
248: // load('reviewer.js'); // would need cross-site XHR
249: if (document.getElementById('head'))
250: load('toc.js');
251: load('styler.js');
252: // load('updater.js'); // would need cross-site XHR
253: load('dfn.js');
254: // load('status.js'); // would need cross-site XHR
255: if (getCookie('profile') == '1')
256: document.getElementsByTagName('h2')[0].textContent += '; load: ' + (new Date() - loadTimer) + 'ms';
257: fixBrokenLink();
258: }
259: </script><link href="http://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet" type="text/css">
1.2 mike 260: <script src="link-fixup.js"></script>
261: <link href="comms.html" title="8 Communication" rel="prev">
262: <link href="spec.html#contents" title="Table of contents" rel="index">
1.1 mike 263: <link href="named-character-references.html" title="9.6 Named character references" rel="next">
1.671 mike 264: </head><body onload="fixBrokenLink(); init()"><div class="head" id="head">
1.1 mike 265: <p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
1.183 mike 266: <h1>HTML5</h1>
1.1 mike 267: <h2 class="no-num no-toc" id="a-vocabulary-and-associated-apis-for-html-and-xhtml">A vocabulary and associated APIs for HTML and XHTML</h2>
1.642 mike 268:
1.123 mike 269: </div><nav>
1.1 mike 270: <a href="comms.html">← 8 Communication</a> –
1.2 mike 271: <a href="spec.html#contents">Table of contents</a> –
1.1 mike 272: <a href="named-character-references.html">9.6 Named character references →</a>
1.721 ! mike 273: </nav><p>This is revision 1.3625.</p>
1.659 mike 274:
1.1 mike 275:
1.123 mike 276: <h2 id="syntax"><span class="secno">9 </span><dfn>The HTML syntax</dfn></h2><p class="note">This section only describes the rules for
1.605 mike 277: <code><a href="iana.html#text-html">text/html</a></code> resources. Rules for XML resources are
1.1 mike 278: discussed in the section below entitled "<a href="the-xhtml-syntax.html#the-xhtml-syntax">The XHTML
1.614 mike 279: syntax</a>".</p><h3 id="writing"><span class="secno">9.1 </span>Writing HTML documents</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><div class="impl">
1.1 mike 280:
281: <p><i>This section only applies to documents, authoring tools, and
282: markup generators. In particular, it does not apply to conformance
283: checkers; conformance checkers must use the requirements given in
284: the next section ("parsing HTML documents").</i></p>
285:
1.123 mike 286: </div><p>Documents must consist of the following parts, in the given
287: order:</p><ol><li>Optionally, a single U+FEFF BYTE ORDER MARK (BOM) character.</li>
1.1 mike 288:
289: <li>Any number of <a href="#syntax-comments" title="syntax-comments">comments</a> and
290: <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
291:
292: <li>A <a href="#syntax-doctype" title="syntax-doctype">DOCTYPE</a>.
293:
294: </li><li>Any number of <a href="#syntax-comments" title="syntax-comments">comments</a> and
295: <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
296:
1.159 mike 297: <li>The root element, in the form of an <code><a href="semantics.html#the-html-element-0">html</a></code> <a href="#syntax-elements" title="syntax-elements">element</a>.</li>
1.1 mike 298:
299: <li>Any number of <a href="#syntax-comments" title="syntax-comments">comments</a> and
300: <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
301:
302: </ol><p>The various types of content mentioned above are described in the
1.123 mike 303: next few sections.</p><p>In addition, there are some restrictions on how <a href="semantics.html#character-encoding-declaration" title="character encoding declaration">character encoding
1.1 mike 304: declarations</a> are to be serialized, as discussed in the
1.123 mike 305: section on that topic.</p><div class="note">
1.1 mike 306:
1.159 mike 307: <p>Space characters before the root <code><a href="semantics.html#the-html-element-0">html</a></code> element, and
308: space characters at the start of the <code><a href="semantics.html#the-html-element-0">html</a></code> element and
309: before the <code><a href="semantics.html#the-head-element-0">head</a></code> element, will be dropped when the
1.1 mike 310: document is parsed; space characters <em>after</em> the root
1.159 mike 311: <code><a href="semantics.html#the-html-element-0">html</a></code> element will be parsed as if they were at the end
312: of the <code><a href="semantics.html#the-body-element-0">body</a></code> element. Thus, space characters around the
1.1 mike 313: root element do not round-trip.</p>
314:
315: <p>It is suggested that newlines be inserted after the DOCTYPE,
316: after any comments that are before the root element, after the
1.159 mike 317: <code><a href="semantics.html#the-html-element-0">html</a></code> element's start tag (if it is not <a href="#syntax-tag-omission" title="syntax-tag-omission">omitted</a>), and after any comments
318: that are inside the <code><a href="semantics.html#the-html-element-0">html</a></code> element but before the
319: <code><a href="semantics.html#the-head-element-0">head</a></code> element.</p>
1.1 mike 320:
1.123 mike 321: </div><p>Many strings in the HTML syntax (e.g. the names of elements and
1.1 mike 322: their attributes) are case-insensitive, but only for characters in
1.547 mike 323: the ranges U+0041 to U+005A (LATIN CAPITAL LETTER A to LATIN CAPITAL
324: LETTER Z) and U+0061 to U+007A (LATIN SMALL LETTER A to LATIN SMALL
1.1 mike 325: LETTER Z). For convenience, in this section this is just referred to
1.614 mike 326: as "case-insensitive".</p><h4 id="the-doctype"><span class="secno">9.1.1 </span>The DOCTYPE</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments. </i><span><a href="http://www.w3.org/html/wg/tracker/issues/4">ISSUE-4</a> (html-versioning) blocks progress to Last Call</span></p><p>A <dfn id="syntax-doctype" title="syntax-doctype">DOCTYPE</dfn> is a mostly useless,
1.123 mike 327: but required, header.</p><p class="note">DOCTYPEs are required for legacy reasons. When
1.1 mike 328: omitted, browsers tend to use a different rendering mode that is
329: incompatible with some specifications. Including the DOCTYPE in a
330: document ensures that the browser makes a best-effort attempt at
1.123 mike 331: following the relevant specifications.</p><p>A DOCTYPE must consist of the following characters, in this
1.588 mike 332: order:</p><ol class="brief"><li>A U+003C LESS-THAN SIGN character (<).</li>
333: <li>A U+0021 EXCLAMATION MARK character (!).</li>
1.1 mike 334: <li>A string that is an <a href="infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a> match for the string "<code title="">DOCTYPE</code>".</li>
335: <li>One or more <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
336: <li>A string that is an <a href="infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a> match for the string "<code title="">HTML</code>".</li>
337: <li>Optionally, a <a href="#doctype-legacy-string">DOCTYPE legacy string</a> (defined below).</li>
338: <li>Zero or more <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
1.588 mike 339: <li>A U+003E GREATER-THAN SIGN character (>).</li>
1.1 mike 340: </ol><p class="note">In other words, <code><!DOCTYPE HTML></code>,
1.123 mike 341: case-insensitively.</p><p>For the purposes of HTML generators that cannot output HTML
1.1 mike 342: markup with the short DOCTYPE "<code title=""><!DOCTYPE
343: HTML></code>", a <dfn id="doctype-legacy-string">DOCTYPE legacy string</dfn> may be inserted
344: into the DOCTYPE (in the position defined above). This string must
1.123 mike 345: consist of:</p><ol class="brief"><li>One or more <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
1.1 mike 346: <li>A string that is an <a href="infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a> match for the string "<code title="">SYSTEM</code>".</li>
1.444 mike 347: <li>One or more <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
1.1 mike 348: <li>A U+0022 QUOTATION MARK or U+0027 APOSTROPHE character (the <i>quote mark</i>).</li>
1.465 mike 349: <li>The literal string "<code><a href="infrastructure.html#about:legacy-compat">about:legacy-compat</a></code>".</li>
1.1 mike 350: <li>A matching U+0022 QUOTATION MARK or U+0027 APOSTROPHE character (i.e. the same character as in the earlier step marked <i>quote mark</i>).</li>
351: </ol><p class="note">In other words, <code><!DOCTYPE HTML SYSTEM
352: "about:legacy-compat"></code> or <code><!DOCTYPE HTML SYSTEM
353: 'about:legacy-compat'></code>, case-insensitively except for the bit
1.123 mike 354: in quotes.</p><p>The <a href="#doctype-legacy-string">DOCTYPE legacy string</a> should not be used unless
1.1 mike 355: the document is generated from a system that cannot output the
1.614 mike 356: shorter string.</p><h4 id="elements-0"><span class="secno">9.1.2 </span>Elements</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>There are five different kinds of <dfn id="syntax-elements" title="syntax-elements">elements</dfn>: <a href="#void-elements">void elements</a>,
1.373 mike 357: <a href="#raw-text-elements">raw text elements</a>, <a href="#rcdata-elements">RCDATA elements</a>,
358: <a href="#foreign-elements">foreign elements</a>, and <a href="#normal-elements">normal elements</a>.</p><dl><dt><dfn id="void-elements">Void elements</dfn></dt>
1.1 mike 359:
360: <dd><code><a href="the-canvas-element.html#the-area-element">area</a></code>, <code><a href="semantics.html#the-base-element">base</a></code>, <code><a href="semantics.html#the-br-element">br</a></code>,
1.159 mike 361: <code><a href="tabular-data.html#the-col-element">col</a></code>, <code><a href="interactive-elements.html#the-command">command</a></code>, <code><a href="text-level-semantics.html#the-embed-element">embed</a></code>,
362: <code><a href="semantics.html#the-hr-element">hr</a></code>, <code><a href="text-level-semantics.html#the-img-element">img</a></code>, <code><a href="forms.html#the-input-element">input</a></code>,
1.1 mike 363: <code><a href="forms.html#the-keygen-element">keygen</a></code>, <code><a href="semantics.html#the-link-element">link</a></code>, <code><a href="semantics.html#meta">meta</a></code>,
1.159 mike 364: <code><a href="text-level-semantics.html#the-param-element">param</a></code>, <code><a href="video.html#the-source-element">source</a></code></dd>
1.1 mike 365:
1.373 mike 366: <dt><dfn id="raw-text-elements">Raw text elements</dfn></dt>
1.1 mike 367:
368: <dd><code><a href="semantics.html#script">script</a></code>, <code><a href="semantics.html#the-style-element">style</a></code></dd> <!-- iframe and
1.91 mike 369: noscript don't count as raw text for syntax purposes -->
1.1 mike 370:
1.373 mike 371: <dt><dfn id="rcdata-elements">RCDATA elements</dfn></dt>
1.1 mike 372:
1.159 mike 373: <dd><code><a href="forms.html#the-textarea-element">textarea</a></code>, <code><a href="semantics.html#the-title-element-0">title</a></code></dd>
1.1 mike 374:
1.373 mike 375: <dt><dfn id="foreign-elements">Foreign elements</dfn></dt>
1.1 mike 376:
377: <dd>Elements from the <a href="#mathml-namespace">MathML namespace</a>
378: and the <a href="#svg-namespace">SVG namespace</a>.</dd>
379:
1.373 mike 380: <dt><dfn id="normal-elements">Normal elements</dfn></dt>
1.1 mike 381:
382: <dd>All other allowed <a href="infrastructure.html#html-elements">HTML elements</a> are normal
383: elements.</dd>
384:
385: </dl><p><dfn id="syntax-tags" title="syntax-tags">Tags</dfn> are used to delimit the start
1.373 mike 386: and end of elements in the markup. <a href="#raw-text-elements" title="raw text
387: elements">Raw text</a>, <a href="#rcdata-elements" title="RCDATA
388: elements">RCDATA</a>, and <a href="#normal-elements" title="normal
389: elements">normal</a> elements have a <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> to indicate where they
390: begin, and an <a href="#syntax-end-tag" title="syntax-end-tag">end tag</a> to
391: indicate where they end. The start and end tags of certain
392: <a href="#normal-elements">normal elements</a> can be <a href="#syntax-tag-omission" title="syntax-tag-omission">omitted</a>, as described
1.1 mike 393: later. Those that cannot be omitted must not be omitted. <a href="#void-elements">Void
394: elements</a> only have a start tag; end tags must not be
1.373 mike 395: specified for <a href="#void-elements">void elements</a>. <a href="#foreign-elements">Foreign
396: elements</a> must either have a start tag and an end tag, or a
397: start tag that is marked as self-closing, in which case they must
398: not have an end tag.</p><p>The contents of the element must be placed between just after the
1.1 mike 399: start tag (which <a href="#syntax-tag-omission" title="syntax-tag-omission">might be implied,
400: in certain cases</a>) and just before the end tag (which again,
401: <a href="#syntax-tag-omission" title="syntax-tag-omission">might be implied in certain
402: cases</a>). The exact allowed contents of each individual element
403: depends on the content model of that element, as described earlier
404: in this specification. Elements must not contain content that their
405: content model disallows. In addition to the restrictions placed on
406: the contents by those content models, however, the five types of
1.123 mike 407: elements have additional <em>syntactic</em> requirements.</p><p><a href="#void-elements">Void elements</a> can't have any contents (since there's
1.1 mike 408: no end tag, no content can be put between the start tag and the end
1.373 mike 409: tag).</p><p><a href="#raw-text-elements">Raw text elements</a> can have <a href="#syntax-text" title="syntax-text">text</a>, though it has <a href="#cdata-rcdata-restrictions">restrictions</a> described
410: below.</p><p><a href="#rcdata-elements">RCDATA elements</a> can have <a href="#syntax-text" title="syntax-text">text</a> and <a href="#syntax-charref" title="syntax-charref">character references</a>, but the text
411: must not contain an <a href="#syntax-ambiguous-ampersand" title="syntax-ambiguous-ampersand">ambiguous ampersand</a>.
1.1 mike 412: There are also <a href="#cdata-rcdata-restrictions">further
1.373 mike 413: restrictions</a> described below.</p><p><a href="#foreign-elements">Foreign elements</a> whose start tag is marked as
414: self-closing can't have any contents (since, again, as there's no
415: end tag, no content can be put between the start tag and the end
416: tag). <a href="#foreign-elements">Foreign elements</a> whose start tag is <em>not</em>
417: marked as self-closing can have <a href="#syntax-text" title="syntax-text">text</a>, <a href="#syntax-charref" title="syntax-charref">character references</a>, <a href="#syntax-cdata" title="syntax-cdata">CDATA sections</a>, other <a href="#syntax-elements" title="syntax-elements">elements</a>, and <a href="#syntax-comments" title="syntax-comments">comments</a>, but the text must not
1.588 mike 418: contain the character U+003C LESS-THAN SIGN (<) or an <a href="#syntax-ambiguous-ampersand" title="syntax-ambiguous-ampersand">ambiguous ampersand</a>.</p><div class="note">
1.374 mike 419:
420: <p>The HTML syntax does not support namespace
421: declarations, even in <a href="#foreign-elements">foreign elements</a>.</p>
422:
423: <p>For instance, consider the following HTML fragment:</p>
424:
425: <pre><p>
426: <svg>
427: <metadata>
428: <!-- this is invalid -->
429: <cdr:license xmlns:cdr="http://www.example.com/cdr/metadata" name="MIT"/>
430: </metadata>
431: </svg>
432: </p></pre>
433:
434: <p>The innermost element, <code title="">cdr:license</code>, is
435: actually in the SVG namespace, as the "<code title="">xmlns:cdr</code>" attribute has no effect (unlike in
436: XML). In fact, as the comment in the fragment above says, the
437: fragment is actually non-conforming. This is because the SVG
438: specification does not define any elements called "<code title="">cdr:license</code>" in the SVG namespace.</p>
439:
440: </div><p><a href="#normal-elements">Normal elements</a> can have <a href="#syntax-text" title="syntax-text">text</a>, <a href="#syntax-charref" title="syntax-charref">character references</a>, other <a href="#syntax-elements" title="syntax-elements">elements</a>, and <a href="#syntax-comments" title="syntax-comments">comments</a>, but the text must not
1.588 mike 441: contain the character U+003C LESS-THAN SIGN (<) or an <a href="#syntax-ambiguous-ampersand" title="syntax-ambiguous-ampersand">ambiguous ampersand</a>. Some
442: <a href="#normal-elements">normal elements</a> also have <a href="#element-restrictions">yet more restrictions</a> on what
1.1 mike 443: content they are allowed to hold, beyond the restrictions imposed by
444: the content model and those described in this paragraph. Those
1.123 mike 445: restrictions are described below.</p><p>Tags contain a <dfn id="syntax-tag-name" title="syntax-tag-name">tag name</dfn>,
1.1 mike 446: giving the element's name. HTML elements all have names that only
1.464 mike 447: use characters in the range U+0030 DIGIT ZERO (0) to U+0039 DIGIT
448: NINE (9), U+0061 LATIN SMALL LETTER A to U+007A LATIN SMALL LETTER
449: Z, and U+0041 LATIN CAPITAL LETTER A to U+005A LATIN CAPITAL LETTER
450: Z. In the HTML syntax, tag names, even those for <a href="#foreign-elements">foreign
1.462 mike 451: elements</a>, may be written with any mix of lower- and uppercase
452: letters that, when converted to all-lowercase, matches the element's
1.614 mike 453: tag name; tag names are case-insensitive.</p><h5 id="start-tags"><span class="secno">9.1.2.1 </span>Start tags</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-start-tag" title="syntax-start-tag">Start tags</dfn> must have the
1.123 mike 454: following format:</p><ol><li>The first character of a start tag must be a U+003C LESS-THAN
1.588 mike 455: SIGN character (<).</li>
1.1 mike 456:
457: <li>The next few characters of a start tag must be the element's
458: <a href="#syntax-tag-name" title="syntax-tag-name">tag name</a>.</li>
459:
460: <li>If there are to be any attributes in the next step, there must
461: first be one or more <a href="infrastructure.html#space-character" title="space character">space
462: characters</a>.</li>
463:
464: <li>Then, the start tag may have a number of attributes, the <a href="#syntax-attributes" title="syntax-attributes">syntax for which</a> is described
465: below. Attributes may be separated from each other by one or more
466: <a href="infrastructure.html#space-character" title="space character">space characters</a>.</li>
467:
468: <li>After the attributes, there may be one or more <a href="infrastructure.html#space-character" title="space character">space characters</a>. (Some attributes
469: are required to be followed by a space. See the <a href="#syntax-attributes" title="syntax-attributes">attributes section</a> below.)</li>
470:
471: <li>Then, if the element is one of the <a href="#void-elements">void elements</a>,
1.373 mike 472: or if the element is a <a href="#foreign-elements" title="foreign elements">foreign
1.588 mike 473: element</a>, then there may be a single U+002F SOLIDUS character
474: (/). This character has no effect on <a href="#void-elements">void elements</a>,
475: but on <a href="#foreign-elements">foreign elements</a> it marks the start tag as
476: self-closing.</li>
1.1 mike 477:
478: <li>Finally, start tags must be closed by a U+003E GREATER-THAN
1.588 mike 479: SIGN character (>).</li>
1.1 mike 480:
1.614 mike 481: </ol><h5 id="end-tags"><span class="secno">9.1.2.2 </span>End tags</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-end-tag" title="syntax-end-tag">End tags</dfn> must have the
1.123 mike 482: following format:</p><ol><li>The first character of an end tag must be a U+003C LESS-THAN
1.588 mike 483: SIGN character (<).</li>
1.1 mike 484:
485: <li>The second character of an end tag must be a U+002F SOLIDUS
1.588 mike 486: character (/).</li>
1.1 mike 487:
488: <li>The next few characters of an end tag must be the element's
489: <a href="#syntax-tag-name" title="syntax-tag-name">tag name</a>.</li>
490:
491: <li>After the tag name, there may be one or more <a href="infrastructure.html#space-character" title="space
492: character">space characters</a>.</li>
493:
1.588 mike 494: <li>Finally, end tags must be closed by a U+003E GREATER-THAN SIGN
495: character (>).</li>
1.1 mike 496:
1.614 mike 497: </ol><h5 id="attributes"><span class="secno">9.1.2.3 </span>Attributes</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-attributes" title="syntax-attributes">Attributes</dfn> for an element
1.123 mike 498: are expressed inside the element's start tag.</p><p>Attributes have a name and a value. <dfn id="syntax-attribute-name" title="syntax-attribute-name">Attribute names</dfn> must consist of
1.1 mike 499: one or more characters other than the <a href="infrastructure.html#space-character" title="space
500: character">space characters</a>, U+0000 NULL, U+0022 QUOTATION
501: MARK ("), U+0027 APOSTROPHE ('), U+003E GREATER-THAN SIGN
502: (>), U+002F SOLIDUS (/), and U+003D EQUALS SIGN (=) characters,
503: the control characters, and any characters that are not defined by
1.462 mike 504: Unicode. In the HTML syntax, attribute names, even those for
505: <a href="#foreign-elements">foreign elements</a>, may be written with any mix of lower-
506: and uppercase letters that are an <a href="infrastructure.html#ascii-case-insensitive">ASCII
1.123 mike 507: case-insensitive</a> match for the attribute's name.</p><p><dfn id="syntax-attribute-value" title="syntax-attribute-value">Attribute values</dfn> are a
1.1 mike 508: mixture of <a href="#syntax-text" title="syntax-text">text</a> and <a href="#syntax-charref" title="syntax-charref">character references</a>, except with the
1.123 mike 509: additional restriction that the text cannot contain an <a href="#syntax-ambiguous-ampersand" title="syntax-ambiguous-ampersand">ambiguous ampersand</a>.</p><p>Attributes can be specified in four different ways:</p><dl><dt>Empty attribute syntax</dt>
1.1 mike 510:
511: <dd>
512:
513: <p>Just the <a href="#syntax-attribute-name" title="syntax-attribute-name">attribute
514: name</a>.</p>
515:
516: <div class="example">
517:
518: <p>In the following example, the <code title="attr-fe-disabled"><a href="forms.html#attr-fe-disabled">disabled</a></code> attribute is given with
519: the empty attribute syntax:</p>
520:
521: <pre><input <em>disabled</em>></pre>
522:
523: </div>
524:
525: <p>If an attribute using the empty attribute syntax is to be
526: followed by another attribute, then there must be a <a href="infrastructure.html#space-character">space
527: character</a> separating the two.</p>
528:
529: </dd>
530:
1.2 mike 531: <dt id="unquoted">Unquoted attribute value syntax</dt>
1.1 mike 532:
533: <dd>
534:
535: <p>The <a href="#syntax-attribute-name" title="syntax-attribute-name">attribute name</a>,
536: followed by zero or more <a href="infrastructure.html#space-character" title="space character">space
537: characters</a>, followed by a single U+003D EQUALS SIGN
538: character, followed by zero or more <a href="infrastructure.html#space-character" title="space
539: character">space characters</a>, followed by the <a href="#syntax-attribute-value" title="syntax-attribute-value">attribute value</a>, which, in
540: addition to the requirements given above for attribute values,
541: must not contain any literal <a href="infrastructure.html#space-character" title="space character">space
1.588 mike 542: characters</a>, any U+0022 QUOTATION MARK characters ("),
543: U+0027 APOSTROPHE characters ('), U+003D EQUALS SIGN
544: characters (=), U+003C LESS-THAN SIGN characters (<), U+003E
545: GREATER-THAN SIGN characters (>), or U+0060 GRAVE ACCENT
546: characters (`), and must not be the empty string.</p>
1.463 mike 547:
548: <!-- The ` character is in this list on a temporary basis, waiting
549: for IE to fix it's parsing bug whereby it treats ` as an
550: attribute value delimiter. Otherwise, escaping software that
551: tries to be clever and not use quotes when it doesn't need to
552: could be tricked by an attacker.
553:
554: Posit a site that allows the user to input text that is used
555: verbatim in two attributes, such that the user can set the
556: first attribute's value to:
557:
558: `
559:
560: ...and the second to:
561:
562: ` onload='...payload...' end=x
563:
564: ...with the assumption that the site is going to not quote
565: the first one, and quote the second one with double quotes:
566:
567: <body title=` class="` onload='...payload...' end=x">
568:
569: In IE, this is treated as:
570:
571: <body title=' class="'
572: onload='...payload...'
573: end='x"'>
574:
575: -->
576:
1.1 mike 577:
578: <div class="example">
579:
580: <p>In the following example, the <code title="attr-input-value"><a href="forms.html#attr-input-value">value</a></code> attribute is given
581: with the unquoted attribute value syntax:</p>
582:
583: <pre><input <em>value=yes</em>></pre>
584:
585: </div>
586:
587: <p>If an attribute using the unquoted attribute syntax is to be
1.101 mike 588: followed by another attribute or by the optional U+002F SOLIDUS
1.464 mike 589: character (/) allowed in step 6 of the <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> syntax above, then there
1.1 mike 590: must be a <a href="infrastructure.html#space-character">space character</a> separating the two.</p>
591:
592: </dd>
593:
594: <dt>Single-quoted attribute value syntax</dt>
595:
596: <dd>
597:
598: <p>The <a href="#syntax-attribute-name" title="syntax-attribute-name">attribute name</a>,
599: followed by zero or more <a href="infrastructure.html#space-character" title="space character">space
600: characters</a>, followed by a single U+003D EQUALS SIGN
601: character, followed by zero or more <a href="infrastructure.html#space-character" title="space
602: character">space characters</a>, followed by a single U+0027
1.588 mike 603: APOSTROPHE character ('), followed by the <a href="#syntax-attribute-value" title="syntax-attribute-value">attribute value</a>, which, in
1.1 mike 604: addition to the requirements given above for attribute values,
1.588 mike 605: must not contain any literal U+0027 APOSTROPHE characters ('), and
606: finally followed by a second single U+0027 APOSTROPHE character
607: (').</p>
1.1 mike 608:
609: <div class="example">
610:
611: <p>In the following example, the <code title="attr-input-type"><a href="forms.html#attr-input-type">type</a></code> attribute is given with the
612: single-quoted attribute value syntax:</p>
613:
614: <pre><input <em>type='checkbox'</em>></pre>
615:
616: </div>
617:
618: <p>If an attribute using the single-quoted attribute syntax is to
619: be followed by another attribute, then there must be a <a href="infrastructure.html#space-character">space
620: character</a> separating the two.</p>
621:
622: </dd>
623:
624: <dt>Double-quoted attribute value syntax</dt>
625:
626: <dd>
627:
628: <p>The <a href="#syntax-attribute-name" title="syntax-attribute-name">attribute name</a>,
629: followed by zero or more <a href="infrastructure.html#space-character" title="space character">space
630: characters</a>, followed by a single U+003D EQUALS SIGN
631: character, followed by zero or more <a href="infrastructure.html#space-character" title="space
632: character">space characters</a>, followed by a single U+0022
1.588 mike 633: QUOTATION MARK character ("), followed by the <a href="#syntax-attribute-value" title="syntax-attribute-value">attribute value</a>, which, in
1.1 mike 634: addition to the requirements given above for attribute values,
1.588 mike 635: must not contain any literal U+0022 QUOTATION MARK characters ("),
636: and finally followed by a second single U+0022 QUOTATION MARK
637: character (").</p>
1.1 mike 638:
639: <div class="example">
640:
641: <p>In the following example, the <code title="attr-fe-name"><a href="forms.html#attr-fe-name">name</a></code> attribute is given with the
642: double-quoted attribute value syntax:</p>
643:
644: <pre><input <em>name="be evil"</em>></pre>
645:
646: </div>
647:
648: <p>If an attribute using the double-quoted attribute syntax is to
649: be followed by another attribute, then there must be a <a href="infrastructure.html#space-character">space
650: character</a> separating the two.</p>
651:
652: </dd>
653:
654: </dl><p>There must never be two or more attributes on the same start tag
655: whose names are an <a href="infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a> match for
1.462 mike 656: each other.</p><hr><p>When a <a href="#foreign-elements" title="foreign elements">foreign element</a> has
657: one of the namespaced attributes given by the local name and
658: namespace of the first and second cells of a row from the following
659: table, it must be written using the name given by the third cell
660: from the same row.</p><table><thead><tr><th> Local name </th><th> Namespace </th><th> Attribute name
661: </th></tr></thead><tbody><tr><td> <code title="">actuate</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:actuate</code>
662: </td></tr><tr><td> <code title="">arcrole</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:arcrole</code>
663: </td></tr><tr><td> <code title="">href</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:href</code>
664: </td></tr><tr><td> <code title="">role</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:role</code>
665: </td></tr><tr><td> <code title="">show</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:show</code>
666: </td></tr><tr><td> <code title="">title</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:title</code>
667: </td></tr><tr><td> <code title="">type</code> </td><td> <a href="#xlink-namespace">XLink namespace</a> </td><td> <code title="">xlink:type</code>
668: </td></tr><tr><td> <code title="">base</code> </td><td> <a href="#xml-namespace">XML namespace</a> <!-- attr-xml-base --> </td><td> <code title="">xml:base</code>
669: </td></tr><tr><td> <code title="">lang</code> </td><td> <a href="#xml-namespace">XML namespace</a> </td><td> <code title="">xml:lang</code>
670: </td></tr><tr><td> <code title="">space</code> </td><td> <a href="#xml-namespace">XML namespace</a> </td><td> <code title="">xml:space</code>
671: </td></tr><tr><td> <code title="">xmlns</code> </td><td> <a href="#xmlns-namespace">XMLNS namespace</a> </td><td> <code title="">xmlns</code>
672: </td></tr><tr><td> <code title="">xlink</code> </td><td> <a href="#xmlns-namespace">XMLNS namespace</a> </td><td> <code title="">xmlns:xlink</code>
1.671 mike 673: </td></tr></tbody></table><p>No other namespaced attribute can be expressed in <a href="#syntax">the
1.614 mike 674: HTML syntax</a>.</p><h5 id="optional-tags"><span class="secno">9.1.2.4 </span>Optional tags</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>Certain tags can be <dfn id="syntax-tag-omission" title="syntax-tag-omission">omitted</dfn>.</p><p class="note">Omitting an element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> does not mean the element
1.1 mike 675: is not present; it is implied, but it is still there. An HTML
1.159 mike 676: document always has a root <code><a href="semantics.html#the-html-element-0">html</a></code> element, even if the
1.1 mike 677: string <code title=""><html></code> doesn't appear anywhere in
1.159 mike 678: the markup.</p><!-- <html> --><p>An <code><a href="semantics.html#the-html-element-0">html</a></code> element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> may be omitted if the
679: first thing inside the <code><a href="semantics.html#the-html-element-0">html</a></code> element is not a <a href="#syntax-comments" title="syntax-comments">comment</a>.</p><!-- </html> --><p>An <code><a href="semantics.html#the-html-element-0">html</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
680: tag</a> may be omitted if the <code><a href="semantics.html#the-html-element-0">html</a></code> element is not
681: immediately followed by a <a href="#syntax-comments" title="syntax-comments">comment</a>.</p><!-- <head> --><p>A <code><a href="semantics.html#the-head-element-0">head</a></code> element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> may be omitted <!--if the
1.1 mike 682: element is empty, or--> if the first thing inside the
1.159 mike 683: <code><a href="semantics.html#the-head-element-0">head</a></code> element is an element.</p><!-- </head> --><p>A <code><a href="semantics.html#the-head-element-0">head</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
684: tag</a> may be omitted if the <code><a href="semantics.html#the-head-element-0">head</a></code> element is not
685: immediately followed by a <a href="infrastructure.html#space-character">space character</a> or a <a href="#syntax-comments" title="syntax-comments">comment</a>.</p><!-- <body> --><p>A <code><a href="semantics.html#the-body-element-0">body</a></code> element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> may be omitted if the
686: element is empty, or if the first thing inside the <code><a href="semantics.html#the-body-element-0">body</a></code>
1.1 mike 687: element is not a <a href="infrastructure.html#space-character">space character</a> or a <a href="#syntax-comments" title="syntax-comments">comment</a>, except if the first thing
1.159 mike 688: inside the <code><a href="semantics.html#the-body-element-0">body</a></code> element is a <code><a href="semantics.html#script">script</a></code> or
1.1 mike 689: <code><a href="semantics.html#the-style-element">style</a></code> element. <!-- Note that even if the </head> end
690: tag is present, the parser makes <style> and <script> elements
691: between </head> and <body> end up in the <head> instead of implying
1.159 mike 692: the <body> --></p><!-- </body> --><p>A <code><a href="semantics.html#the-body-element-0">body</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
693: tag</a> may be omitted if the <code><a href="semantics.html#the-body-element-0">body</a></code> element is not
1.123 mike 694: immediately followed by a <a href="#syntax-comments" title="syntax-comments">comment</a>.</p><!-- </li> --><p>A <code><a href="semantics.html#the-li-element">li</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 695: tag</a> may be omitted if the <code><a href="semantics.html#the-li-element">li</a></code> element is
696: immediately followed by another <code><a href="semantics.html#the-li-element">li</a></code> element or if there
1.422 mike 697: is no more content in the parent element.</p><!-- </dt> --><p>A <code><a href="semantics.html#the-dt-element">dt</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 698: tag</a> may be omitted if the <code><a href="semantics.html#the-dt-element">dt</a></code> element is
699: immediately followed by another <code><a href="semantics.html#the-dt-element">dt</a></code> element or a
1.123 mike 700: <code><a href="semantics.html#the-dd-element">dd</a></code> element.</p><!-- </dd> --><p>A <code><a href="semantics.html#the-dd-element">dd</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 701: tag</a> may be omitted if the <code><a href="semantics.html#the-dd-element">dd</a></code> element is
702: immediately followed by another <code><a href="semantics.html#the-dd-element">dd</a></code> element or a
703: <code><a href="semantics.html#the-dt-element">dt</a></code> element, or if there is no more content in the
1.123 mike 704: parent element.</p><!-- </p> --><p>A <code><a href="semantics.html#the-p-element">p</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 705: tag</a> may be omitted if the <code><a href="semantics.html#the-p-element">p</a></code> element is
706: immediately followed by an <code><a href="semantics.html#the-address-element">address</a></code>,
707: <code><a href="semantics.html#the-article-element">article</a></code>, <code><a href="semantics.html#the-aside-element">aside</a></code>, <code><a href="semantics.html#the-blockquote-element">blockquote</a></code>,
1.305 mike 708: <!--v2DATAGRID <code>datagrid</code>,--> <code><a href="obsolete.html#dir">dir</a></code>,
1.306 mike 709: <code><a href="semantics.html#the-div-element">div</a></code>, <code><a href="semantics.html#the-dl-element">dl</a></code>, <code><a href="forms.html#the-fieldset-element">fieldset</a></code>,
1.305 mike 710: <code><a href="semantics.html#the-footer-element">footer</a></code>, <code><a href="forms.html#the-form-element">form</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code>,
711: <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h2</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h3</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h4</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h5</a></code>,
712: <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code>, <code><a href="semantics.html#the-header-element">header</a></code>, <code><a href="semantics.html#the-hgroup-element">hgroup</a></code>,
713: <code><a href="semantics.html#the-hr-element">hr</a></code>, <code><a href="interactive-elements.html#menus">menu</a></code>, <code><a href="semantics.html#the-nav-element">nav</a></code>,
714: <code><a href="semantics.html#the-ol-element">ol</a></code>, <code><a href="semantics.html#the-p-element">p</a></code>, <code><a href="semantics.html#the-pre-element">pre</a></code>,
1.1 mike 715: <code><a href="semantics.html#the-section-element">section</a></code>, <code><a href="tabular-data.html#the-table-element">table</a></code>, or <code><a href="semantics.html#the-ul-element">ul</a></code>,
716: element, or if there is no more content in the parent element and
1.123 mike 717: the parent element is not an <code><a href="text-level-semantics.html#the-a-element">a</a></code> element.</p><!-- </rt> --><p>An <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 718: tag</a> may be omitted if the <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> element is
719: immediately followed by an <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> or <code><a href="text-level-semantics.html#the-rp-element">rp</a></code>
1.123 mike 720: element, or if there is no more content in the parent element.</p><!-- </rp> --><p>An <code><a href="text-level-semantics.html#the-rp-element">rp</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 721: tag</a> may be omitted if the <code><a href="text-level-semantics.html#the-rp-element">rp</a></code> element is
722: immediately followed by an <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> or <code><a href="text-level-semantics.html#the-rp-element">rp</a></code>
1.123 mike 723: element, or if there is no more content in the parent element.</p><!-- </optgroup> (the text assumes <optgroup> can only be inside a
1.1 mike 724: <select>; commented out text below can handle the non-<select> case
1.123 mike 725: if we ever allow it) --><p>An <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end tag</a> may be omitted if the
1.1 mike 726: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element <!--has an ancestor
727: <code>select</code> element and--> is immediately followed by
728: another <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, or if <!--all of the elements
729: that are ancestors of the <code>optgroup</code> element, up to and
730: including the first ancestor element that is not an
731: <code>optgroup</code> element, have no more content--> there is no
1.123 mike 732: more content in the parent element.</p><!-- so e.g. the max number of </optgroup>s are omitted here:
1.1 mike 733: <select><optgroup></select>
734: <p id=x><optgroup></optgroup>x</p>
735: <p id=x><optgroup><optgroup></optgroup></optgroup>x</p>
736: <p><optgroup id=x><optgroup></optgroup>x</p>
737: <p><optgroup><optgroup id=x>x</p>
1.123 mike 738: --><!-- </option> --><p>An <code><a href="forms.html#the-option-element">option</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 739: tag</a> may be omitted if the <code><a href="forms.html#the-option-element">option</a></code> element is
740: immediately followed by another <code><a href="forms.html#the-option-element">option</a></code> element, or if
741: it is immediately followed by an <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, or
1.123 mike 742: if there is no more content in the parent element.</p><!-- <colgroup> --><p>A <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> may be omitted if the
1.1 mike 743: first thing inside the <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element is a
744: <code><a href="tabular-data.html#the-col-element">col</a></code> element, and if the element is not immediately
745: preceded by another <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element whose <a href="#syntax-end-tag" title="syntax-end-tag">end tag</a> has been omitted. (It can't be
1.123 mike 746: omitted if the element is empty.)</p><!-- </colgroup> --><p>A <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end tag</a> may be omitted if the
1.1 mike 747: <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element is not immediately followed by a
1.123 mike 748: <a href="infrastructure.html#space-character">space character</a> or a <a href="#syntax-comments" title="syntax-comments">comment</a>.</p><!-- </thead> --><p>A <code><a href="tabular-data.html#the-thead-element">thead</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 749: tag</a> may be omitted if the <code><a href="tabular-data.html#the-thead-element">thead</a></code> element is
750: immediately followed by a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> or <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>
1.123 mike 751: element.</p><!-- <tbody> --><p>A <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element's <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> may be omitted if the
1.1 mike 752: first thing inside the <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element is a
753: <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, and if the element is not immediately
754: preceded by a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>, <code><a href="tabular-data.html#the-thead-element">thead</a></code>, or
755: <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element whose <a href="#syntax-end-tag" title="syntax-end-tag">end
756: tag</a> has been omitted. (It can't be omitted if the element is
1.123 mike 757: empty.)</p><!-- </tbody> --><p>A <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 758: tag</a> may be omitted if the <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element is
759: immediately followed by a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> or <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>
1.123 mike 760: element, or if there is no more content in the parent element.</p><!-- </tfoot> --><p>A <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 761: tag</a> may be omitted if the <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element is
762: immediately followed by a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element, or if there is
1.123 mike 763: no more content in the parent element.</p><!-- </tr> --><p>A <code><a href="tabular-data.html#the-tr-element">tr</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 764: tag</a> may be omitted if the <code><a href="tabular-data.html#the-tr-element">tr</a></code> element is
765: immediately followed by another <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, or if there
1.123 mike 766: is no more content in the parent element.</p><!-- </td> --><p>A <code><a href="tabular-data.html#the-td-element">td</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 767: tag</a> may be omitted if the <code><a href="tabular-data.html#the-td-element">td</a></code> element is
768: immediately followed by a <code><a href="tabular-data.html#the-td-element">td</a></code> or <code><a href="tabular-data.html#the-th-element">th</a></code>
1.123 mike 769: element, or if there is no more content in the parent element.</p><!-- </th> --><p>A <code><a href="tabular-data.html#the-th-element">th</a></code> element's <a href="#syntax-end-tag" title="syntax-end-tag">end
1.1 mike 770: tag</a> may be omitted if the <code><a href="tabular-data.html#the-th-element">th</a></code> element is
771: immediately followed by a <code><a href="tabular-data.html#the-td-element">td</a></code> or <code><a href="tabular-data.html#the-th-element">th</a></code>
1.123 mike 772: element, or if there is no more content in the parent element.</p><p><strong>However</strong>, a <a href="#syntax-start-tag" title="syntax-start-tag">start
1.614 mike 773: tag</a> must never be omitted if it has any attributes.</p><h5 id="element-restrictions"><span class="secno">9.1.2.5 </span>Restrictions on content models</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>For historical reasons, certain elements have extra restrictions
1.123 mike 774: beyond even the restrictions given by their content model.</p><p>A <code><a href="tabular-data.html#the-table-element">table</a></code> element must not contain <code><a href="tabular-data.html#the-tr-element">tr</a></code>
1.1 mike 775: elements, even though these elements are technically allowed inside
776: <code><a href="tabular-data.html#the-table-element">table</a></code> elements according to the content models
777: described in this specification. (If a <code><a href="tabular-data.html#the-tr-element">tr</a></code> element is
778: put inside a <code><a href="tabular-data.html#the-table-element">table</a></code> in the markup, it will in fact imply
1.304 mike 779: a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> start tag before it.)</p><p>A single <a href="#syntax-newlines" title="syntax-newlines">newline</a> may be
780: placed immediately after the <a href="#syntax-start-tag" title="syntax-start-tag">start
1.1 mike 781: tag</a> of <code><a href="semantics.html#the-pre-element">pre</a></code> and <code><a href="forms.html#the-textarea-element">textarea</a></code>
782: elements. This does not affect the processing of the element. The
1.304 mike 783: otherwise optional <a href="#syntax-newlines" title="syntax-newlines">newline</a>
1.381 mike 784: <em>must</em> be included if the element's contents themselves start
785: with a <a href="#syntax-newlines" title="syntax-newlines">newline</a> (because
786: otherwise the leading newline in the contents would be treated like
787: the optional newline, and ignored).</p><div class="example">
1.1 mike 788: <p>The following two <code><a href="semantics.html#the-pre-element">pre</a></code> blocks are equivalent:</p>
789: <pre><pre>Hello</pre></pre>
790: <pre><pre><br>Hello</pre></pre>
1.614 mike 791: </div><h5 id="cdata-rcdata-restrictions"><span class="secno">9.1.2.6 </span>Restrictions on the contents of raw text and RCDATA elements</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>The text in <a href="#raw-text-elements" title="raw text elements">raw text</a> and
1.373 mike 792: <a href="#rcdata-elements" title="RCDATA elements">RCDATAs</a> element must not
793: contain any occurrences of the string "<code title=""></</code>"
794: (U+003C LESS-THAN SIGN, U+002F SOLIDUS) followed by characters that
1.1 mike 795: case-insensitively match the tag name of the element followed by one
796: of U+0009 CHARACTER TABULATION, U+000A LINE FEED (LF), U+000C FORM
1.304 mike 797: FEED (FF), U+000D CARRIAGE RETURN (CR), U+0020 SPACE, U+003E
1.614 mike 798: GREATER-THAN SIGN (>), or U+002F SOLIDUS (/).</p><h4 id="text-0"><span class="secno">9.1.3 </span>Text</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-text" title="syntax-text">Text</dfn> is allowed inside elements,
1.1 mike 799: attributes, and comments. Text must consist of Unicode characters.
800: Text must not contain U+0000 characters. Text must not contain
1.316 mike 801: permanently undefined Unicode characters (noncharacters). Text must
802: not contain control characters other than <a href="infrastructure.html#space-character" title="space
803: character">space characters</a>. Extra constraints are placed on
804: what is and what is not allowed in text based on where the text is
1.614 mike 805: to be put, as described in the other sections.</p><h5 id="newlines"><span class="secno">9.1.3.1 </span>Newlines</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-newlines" title="syntax-newlines">Newlines</dfn> in HTML may be
1.1 mike 806: represented either as U+000D CARRIAGE RETURN (CR) characters, U+000A
807: LINE FEED (LF) characters, or pairs of U+000D CARRIAGE RETURN (CR),
1.614 mike 808: U+000A LINE FEED (LF) characters in that order.</p><h4 id="character-references"><span class="secno">9.1.4 </span>Character references</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p>In certain cases described in other sections, <a href="#syntax-text" title="syntax-text">text</a> may be mixed with <dfn id="syntax-charref" title="syntax-charref">character references</dfn>. These can be used
1.1 mike 809: to escape characters that couldn't otherwise legally be included in
1.588 mike 810: <a href="#syntax-text" title="syntax-text">text</a>.</p><p>Character references must start with a U+0026 AMPERSAND character
811: (&). Following this, there are three possible kinds of character
812: references:</p><dl><dt>Named character references</dt>
1.1 mike 813:
814: <dd>The ampersand must be followed by one of the names given in the
815: <a href="named-character-references.html#named-character-references">named character references</a> section, using the same
1.677 mike 816: case. <span class="impl">The name must be one that is terminated by
817: a U+003B SEMICOLON character (;).</span></dd>
1.1 mike 818:
819:
820: <dt>Decimal numeric character reference</dt>
821:
822: <dd>The ampersand must be followed by a U+0023 NUMBER SIGN
1.588 mike 823: character (#), followed by one or more digits in the range U+0030
824: DIGIT ZERO (0) to U+0039 DIGIT NINE (9), representing a base-ten
825: integer that corresponds to a Unicode code point that is allowed
826: according to the definition below. The digits must then be followed
827: by a U+003B SEMICOLON character (;).</dd>
1.1 mike 828:
829:
830: <dt>Hexadecimal numeric character reference</dt>
831:
832: <dd>The ampersand must be followed by a U+0023 NUMBER SIGN
1.588 mike 833: character (#), which must be followed by either a U+0078 LATIN
834: SMALL LETTER X character (x) or a U+0058 LATIN CAPITAL LETTER X
835: character (X), which must then be followed by one or more digits in
836: the range U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), U+0061
837: LATIN SMALL LETTER A to U+0066 LATIN SMALL LETTER F, and U+0041
838: LATIN CAPITAL LETTER A to U+0046 LATIN CAPITAL LETTER F,
1.464 mike 839: representing a base-sixteen integer that corresponds to a Unicode
840: code point that is allowed according to the definition below. The
841: digits must then be followed by a U+003B SEMICOLON character
842: (;).</dd>
1.378 mike 843:
844: </dl><p>The numeric character reference forms described above are allowed
845: to reference any Unicode code point other than U+0000, permanently
846: undefined Unicode characters (noncharacters), and control characters
847: other than <a href="infrastructure.html#space-character" title="space character">space
848: characters</a>.</p><p>An <dfn id="syntax-ambiguous-ampersand" title="syntax-ambiguous-ampersand">ambiguous
1.464 mike 849: ampersand</dfn> is a U+0026 AMPERSAND character (&) that is
850: followed by some <a href="#syntax-text" title="syntax-text">text</a> other than a
851: <a href="infrastructure.html#space-character">space character</a>, a U+003C LESS-THAN SIGN character
1.614 mike 852: (<), or another U+0026 AMPERSAND character (&).</p><h4 id="cdata-sections"><span class="secno">9.1.5 </span>CDATA sections</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-cdata" title="syntax-cdata">CDATA sections</dfn> must start with
1.1 mike 853: the character sequence U+003C LESS-THAN SIGN, U+0021 EXCLAMATION
854: MARK, U+005B LEFT SQUARE BRACKET, U+0043 LATIN CAPITAL LETTER C,
855: U+0044 LATIN CAPITAL LETTER D, U+0041 LATIN CAPITAL LETTER A, U+0054
856: LATIN CAPITAL LETTER T, U+0041 LATIN CAPITAL LETTER A, U+005B LEFT
857: SQUARE BRACKET (<code title=""><![CDATA[</code>). Following this
858: sequence, the CDATA section may have <a href="#syntax-text" title="syntax-text">text</a>, with the additional restriction
859: that the text must not contain the three character sequence U+005D
860: RIGHT SQUARE BRACKET, U+005D RIGHT SQUARE BRACKET, U+003E
861: GREATER-THAN SIGN (<code title="">]]></code>). Finally, the CDATA
862: section must be ended by the three character sequence U+005D RIGHT
863: SQUARE BRACKET, U+005D RIGHT SQUARE BRACKET, U+003E GREATER-THAN
1.614 mike 864: SIGN (<code title="">]]></code>).</p><h4 id="comments"><span class="secno">9.1.6 </span>Comments</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p><p><dfn id="syntax-comments" title="syntax-comments">Comments</dfn> must start with the
1.1 mike 865: four character sequence U+003C LESS-THAN SIGN, U+0021 EXCLAMATION
866: MARK, U+002D HYPHEN-MINUS, U+002D HYPHEN-MINUS (<code title=""><!--</code>). Following this sequence, the comment may
867: have <a href="#syntax-text" title="syntax-text">text</a>, with the additional
868: restriction that the text must not start with a single U+003E
1.588 mike 869: GREATER-THAN SIGN character (>), nor start with a U+002D
870: HYPHEN-MINUS character (-) followed by a U+003E GREATER-THAN SIGN
871: (>) character, nor contain two consecutive U+002D HYPHEN-MINUS
872: characters (<code title="">--</code>), nor end with a U+002D
873: HYPHEN-MINUS character (-). Finally, the comment must be ended by
1.1 mike 874: the three character sequence U+002D HYPHEN-MINUS, U+002D
1.123 mike 875: HYPHEN-MINUS, U+003E GREATER-THAN SIGN (<code title="">--></code>).</p><div class="impl">
1.1 mike 876:
1.159 mike 877: <h3 id="parsing"><span class="secno">9.2 </span>Parsing HTML documents</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 878:
879: <p><i>This section only applies to user agents, data mining tools,
880: and conformance checkers.</i></p>
881:
882: <p class="note">The rules for parsing XML documents into DOM trees
883: are covered by the next section, entitled "<a href="the-xhtml-syntax.html#the-xhtml-syntax">The XHTML
884: syntax</a>".</p>
885:
886: <p>For <a href="dom.html#html-documents">HTML documents</a>, user agents must use the parsing
887: rules described in this section to generate the DOM trees. Together,
888: these rules define what is referred to as the <dfn id="html-parser">HTML
889: parser</dfn>.</p>
890:
891: <div class="note">
892:
893: <p>While the HTML syntax described in this specification bears a
894: close resemblance to SGML and XML, it is a separate language with
895: its own parsing rules.</p>
896:
1.183 mike 897: <p>Some earlier versions of HTML (in particular from HTML2 to
898: HTML4) were based on SGML and used SGML parsing rules. However, few
1.1 mike 899: (if any) web browsers ever implemented true SGML parsing for HTML
900: documents; the only user agents to strictly handle HTML as an SGML
901: application have historically been validators. The resulting
902: confusion — with validators claiming documents to have one
903: representation while widely deployed Web browsers interoperably
904: implemented a different representation — has wasted decades
905: of productivity. This version of HTML thus returns to a non-SGML
906: basis.</p>
907:
908: <p>Authors interested in using SGML tools in their authoring
909: pipeline are encouraged to use XML tools and the XML serialization
910: of HTML.</p>
911:
912: </div>
913:
914: <p>This specification defines the parsing rules for HTML documents,
915: whether they are syntactically correct or not. Certain points in the
916: parsing algorithm are said to be <dfn id="parse-error" title="parse error">parse
917: errors</dfn>. The error handling for parse errors is well-defined:
918: user agents must either act as described below when encountering
919: such problems, or must abort processing at the first error that they
920: encounter for which they do not wish to apply the rules described
921: below.</p>
922:
923: <p>Conformance checkers must report at least one parse error
924: condition to the user if one or more parse error conditions exist in
925: the document and must not report parse error conditions if none
926: exist in the document. Conformance checkers may report more than one
1.174 mike 927: parse error condition if more than one parse error condition exists
1.1 mike 928: in the document. Conformance checkers are not required to recover
929: from parse errors.</p>
930:
931: <p class="note">Parse errors are only errors with the
932: <em>syntax</em> of HTML. In addition to checking for parse errors,
933: conformance checkers will also verify that the document obeys all
934: the other conformance requirements described in this
935: specification.</p>
936:
937: <p>For the purposes of conformance checkers, if a resource is
938: determined to be in <a href="#syntax">the HTML syntax</a>, then it is an
939: <a href="dom.html#html-documents" title="HTML documents">HTML document</a>.</p>
940:
1.266 mike 941: </div><div class="impl">
1.1 mike 942:
1.614 mike 943: <h4 id="overview-of-the-parsing-model"><span class="secno">9.2.1 </span>Overview of the parsing model</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 944:
945: <p>The input to the HTML parsing process consists of a stream of
946: Unicode characters, which is passed through a
947: <a href="#tokenization">tokenization</a> stage followed by a <a href="#tree-construction">tree
948: construction</a> stage. The output is a <code>Document</code>
949: object.</p>
950:
951: <p class="note">Implementations that <a href="infrastructure.html#non-scripted">do not
952: support scripting</a> do not have to actually create a DOM
953: <code>Document</code> object, but the DOM tree in such cases is
954: still used as the model for the rest of the specification.</p>
955:
956: <p>In the common case, the data handled by the tokenization stage
1.159 mike 957: comes from the network, but <a href="embedded-content-0.html#dynamic-markup-insertion" title="dynamic markup
958: insertion">it can also come from script</a>, e.g. using the <code title="dom-document-write"><a href="embedded-content-0.html#dom-document-write">document.write()</a></code> API.</p>
1.1 mike 959:
960: <p><img alt="" src="images/parsing-model-overview.png"></p>
961:
962: <p id="nestedParsing">There is only one set of states for the
963: tokenizer stage and the tree construction stage, but the tree
964: construction stage is reentrant, meaning that while the tree
965: construction stage is handling one token, the tokenizer might be
966: resumed, causing further tokens to be emitted and processed before
967: the first token's processing is complete.</p>
968:
969: <div class="example">
970:
971: <p>In the following example, the tree construction stage will be
972: called upon to handle a "p" start tag token while handling the
973: "script" start tag token:</p>
974:
975: <pre>...
976: <script>
977: document.write('<p>');
978: </script>
979: ...</pre>
980:
981: </div>
982:
983: <p>To handle these cases, parsers have a <dfn id="script-nesting-level">script nesting
984: level</dfn>, which must be initially set to zero, and a <dfn id="parser-pause-flag">parser
985: pause flag</dfn>, which must be initially set to false.</p>
986:
1.266 mike 987: </div><div class="impl">
1.1 mike 988:
1.614 mike 989: <h4 id="the-input-stream"><span class="secno">9.2.2 </span>The <dfn>input stream</dfn></h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 990:
991: <p>The stream of Unicode characters that comprises the input to the
992: tokenization stage will be initially seen by the user agent as a
993: stream of bytes (typically coming over the network or from the local
994: file system). The bytes encode the actual characters according to a
995: particular <em>character encoding</em>, which the user agent must
996: use to decode the bytes into characters.</p>
997:
998: <p class="note">For XML documents, the algorithm user agents must
999: use to determine the character encoding is given by the XML
1.104 mike 1000: specification. This section does not apply to XML documents. <a href="references.html#refsXML">[XML]</a></p>
1.1 mike 1001:
1002:
1.614 mike 1003: <h5 id="determining-the-character-encoding"><span class="secno">9.2.2.1 </span>Determining the character encoding</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1004:
1005: <p>In some cases, it might be impractical to unambiguously determine
1006: the encoding before parsing the document. Because of this, this
1007: specification provides for a two-pass mechanism with an optional
1008: pre-scan. Implementations are allowed, as described below, to apply
1009: a simplified parsing algorithm to whatever bytes they have available
1010: before beginning to parse the document. Then, the real parser is
1011: started, using a tentative encoding derived from this pre-parse and
1012: other out-of-band metadata. If, while the document is being loaded,
1013: the user agent discovers an encoding declaration that conflicts with
1014: this information, then the parser can get reinvoked to perform a
1015: parse of the document with the real encoding.</p>
1016:
1017: <p id="documentEncoding">User agents must use the following
1018: algorithm (the <dfn id="encoding-sniffing-algorithm">encoding sniffing algorithm</dfn>) to determine
1019: the character encoding to use when decoding a document in the first
1020: pass. This algorithm takes as input any out-of-band metadata
1021: available to the user agent (e.g. the <a href="infrastructure.html#content-type" title="Content-Type">Content-Type metadata</a> of the document)
1022: and all the bytes available so far, and returns an encoding and a
1023: <dfn id="concept-encoding-confidence" title="concept-encoding-confidence">confidence</dfn>. The
1024: confidence is either <i>tentative</i>, <i>certain</i>, or
1025: <i>irrelevant</i>. The encoding used, and whether the confidence in
1026: that encoding is <i>tentative</i> or <i>certain</i>, is <a href="#meta-charset-during-parse">used during the parsing</a> to
1027: determine whether to <a href="#change-the-encoding">change the encoding</a>. If no
1028: encoding is necessary, e.g. because the parser is operating on a
1029: stream of Unicode characters and doesn't have to use an encoding at
1030: all, then the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> is
1031: <i>irrelevant</i>.</p>
1032:
1033: <ol><li><p>If the transport layer specifies an encoding, and it is
1034: supported, return that encoding with the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1035: <i>certain</i>, and abort these steps.</p></li>
1036:
1037: <li><p>The user agent may wait for more bytes of the resource to be
1038: available, either in this step or at any later step in this
1039: algorithm. For instance, a user agent might wait 500ms or 512
1040: bytes, whichever came first. In general preparsing the source to
1041: find the encoding improves performance, as it reduces the need to
1042: throw away the data structures used when parsing upon finding the
1043: encoding information. However, if the user agent delays too long to
1044: obtain data to determine the encoding, then the cost of the delay
1045: could outweigh any performance improvements from the
1046: preparse.</p></li>
1047:
1048: <li><p>For each of the rows in the following table, starting with
1049: the first one and going down, if there are as many or more bytes
1050: available than the number of bytes in the first column, and the
1051: first bytes of the file match the bytes given in the first column,
1052: then return the encoding given in the cell in the second column of
1053: that row, with the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1054: <i>certain</i>, and abort these steps:</p>
1055:
1056: <!-- this table is present in several forms in this file; keep them in sync -->
1057: <table><thead><tr><th>Bytes in Hexadecimal
1058: </th><th>Encoding
1059: </th></tr></thead><tbody><!-- nobody uses this
1060: <tr>
1061: <td>00 00 FE FF
1062: <td>UTF-32BE
1063: <tr>
1064: <td>FF FE 00 00
1065: <td>UTF-32LE
1066: --><tr><td>FE FF
1067: </td><td>UTF-16BE
1068: </td></tr><tr><td>FF FE
1069: </td><td>UTF-16LE
1070: </td></tr><tr><td>EF BB BF
1071: </td><td>UTF-8
1072: <!-- nobody uses this
1073: <tr>
1074: <td>DD 73 66 73
1075: <td>UTF-EBCDIC
1076: -->
1077: </td></tr></tbody></table><p class="note">This step looks for Unicode Byte Order Marks
1078: (BOMs).</p></li>
1079:
1080: <li><p>Otherwise, the user agent will have to search for explicit
1081: character encoding information in the file itself. This should
1082: proceed as follows:
1083:
1084: </p><p>Let <var title="">position</var> be a pointer to a byte in the
1085: input stream, initially pointing at the first byte. If at any
1086: point during these substeps the user agent either runs out of
1087: bytes or decides that scanning further bytes would not be
1088: efficient, then skip to the next step of the overall character
1089: encoding detection algorithm. User agents may decide that scanning
1090: <em>any</em> bytes is not efficient, in which case these substeps
1091: are entirely skipped.</p>
1092:
1093: <p>Now, repeat the following "two" steps until the algorithm
1094: aborts (either because user agent aborts, as described above, or
1095: because a character encoding is found):</p>
1096:
1097: <ol><li><p>If <var title="">position</var> points to:</p>
1098:
1099: <dl class="switch"><dt>A sequence of bytes starting with: 0x3C 0x21 0x2D 0x2D (ASCII '<!--')</dt>
1100: <dd>
1101:
1102: <p>Advance the <var title="">position</var> pointer so that it
1103: points at the first 0x3E byte which is preceded by two 0x2D
1104: bytes (i.e. at the end of an ASCII '-->' sequence) and comes
1105: after the 0x3C byte that was found. (The two 0x2D bytes can be
1106: the same as the those in the '<!--' sequence.)</p>
1107:
1108: </dd>
1109:
1110: <dt>A sequence of bytes starting with: 0x3C, 0x4D or 0x6D, 0x45 or 0x65, 0x54 or 0x74, 0x41 or 0x61, and finally one of 0x09, 0x0A, 0x0C, 0x0D, 0x20, 0x2F (case-insensitive ASCII '<meta' followed by a space or slash)</dt>
1111: <dd>
1112:
1113: <ol><li><p>Advance the <var title="">position</var> pointer so
1114: that it points at the next 0x09, 0x0A, 0x0C, 0x0D, 0x20, or
1115: 0x2F byte (the one in sequence of characters matched
1116: above).</p></li>
1117:
1118: <li><p><a href="#concept-get-attributes-when-sniffing" title="concept-get-attributes-when-sniffing">Get
1119: an attribute</a> and its value. If no attribute was
1120: sniffed, then skip this inner set of steps, and jump to the
1121: second step in the overall "two step" algorithm.</p></li>
1122:
1123: <li><p>If the attribute's name is neither "<code title="">charset</code>" nor "<code title="">content</code>",
1124: then return to step 2 in these inner steps.</p></li>
1125:
1126: <li><p>If the attribute's name is "<code title="">charset</code>", let <var title="">charset</var> be
1127: the attribute's value, interpreted as a character
1128: encoding.</p></li>
1129:
1130: <li><p>Otherwise, the attribute's name is "<code title="">content</code>": apply the <a href="infrastructure.html#algorithm-for-extracting-an-encoding-from-a-content-type">algorithm for
1131: extracting an encoding from a Content-Type</a>, giving the
1132: attribute's value as the string to parse. If an encoding is
1133: returned, let <var title="">charset</var> be that
1134: encoding. Otherwise, return to step 2 in these inner
1135: steps.</p></li>
1136:
1137: <li><p>If <var title="">charset</var> is a UTF-16 encoding,
1138: change the value of <var title="">charset</var> to
1139: UTF-8.</p></li>
1140:
1141: <li><p>If <var title="">charset</var> is a supported
1142: character encoding, then return the given encoding, with
1143: <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1144: <i>tentative</i>, and abort all these steps.</p></li>
1145:
1146: <li><p>Otherwise, return to step 2 in these inner
1147: steps.</p></li>
1148:
1149: </ol></dd>
1150:
1.464 mike 1151: <dt>A sequence of bytes starting with a 0x3C byte (ASCII <), optionally a 0x2F byte (ASCII /), and finally a byte in the range 0x41-0x5A or 0x61-0x7A (an ASCII letter)</dt>
1.1 mike 1152: <dd>
1153:
1154: <ol><li><p>Advance the <var title="">position</var> pointer so
1155: that it points at the next 0x09 (ASCII TAB), 0x0A (ASCII LF),
1156: 0x0C (ASCII FF), 0x0D (ASCII CR), 0x20 (ASCII space), or 0x3E
1.464 mike 1157: (ASCII >) byte.</p></li>
1.1 mike 1158:
1159: <li><p>Repeatedly <a href="#concept-get-attributes-when-sniffing" title="concept-get-attributes-when-sniffing">get an
1160: attribute</a> until no further attributes can be found,
1161: then jump to the second step in the overall "two step"
1162: algorithm.</p></li>
1163:
1164: </ol></dd>
1165:
1166: <dt>A sequence of bytes starting with: 0x3C 0x21 (ASCII '<!')</dt>
1167: <dt>A sequence of bytes starting with: 0x3C 0x2F (ASCII '</')</dt>
1168: <dt>A sequence of bytes starting with: 0x3C 0x3F (ASCII '<?')</dt>
1169: <dd>
1170:
1171: <p>Advance the <var title="">position</var> pointer so that it
1.464 mike 1172: points at the first 0x3E byte (ASCII >) that comes after the
1.1 mike 1173: 0x3C byte that was found.</p>
1174:
1175: </dd>
1176:
1177: <dt>Any other byte</dt>
1178: <dd>
1179:
1180: <p>Do nothing with that byte.</p>
1181:
1182: </dd>
1183:
1184: </dl></li>
1185:
1186: <li>Move <var title="">position</var> so it points at the next
1187: byte in the input stream, and return to the first step of this
1188: "two step" algorithm.</li>
1189:
1190: </ol><p>When the above "two step" algorithm says to <dfn id="concept-get-attributes-when-sniffing" title="concept-get-attributes-when-sniffing">get an
1191: attribute</dfn>, it means doing this:</p>
1192:
1193: <ol><li><p>If the byte at <var title="">position</var> is one of 0x09
1194: (ASCII TAB), 0x0A (ASCII LF), 0x0C (ASCII FF), 0x0D (ASCII CR),
1.464 mike 1195: 0x20 (ASCII space), or 0x2F (ASCII /) then advance <var title="">position</var> to the next byte and redo this
1.1 mike 1196: substep.</p></li>
1197:
1198: <li><p>If the byte at <var title="">position</var> is 0x3E (ASCII
1.464 mike 1199: >), then abort the "get an attribute" algorithm. There isn't
1.1 mike 1200: one.</p></li>
1201:
1202: <li><p>Otherwise, the byte at <var title="">position</var> is the
1203: start of the attribute name. Let <var title="">attribute
1204: name</var> and <var title="">attribute value</var> be the empty
1205: string.</p></li>
1206:
1207: <li><p><i>Attribute name</i>: Process the byte at <var title="">position</var> as follows:</p>
1208:
1.464 mike 1209: <dl class="switch"><dt>If it is 0x3D (ASCII =), and the <var title="">attribute
1.1 mike 1210: name</var> is longer than the empty string</dt>
1211:
1212: <dd>Advance <var title="">position</var> to the next byte and
1213: jump to the step below labeled <i>value</i>.</dd>
1214:
1215: <dt>If it is 0x09 (ASCII TAB), 0x0A (ASCII LF), 0x0C (ASCII
1216: FF), 0x0D (ASCII CR), or 0x20 (ASCII space)</dt>
1217:
1218: <dd>Jump to the step below labeled <i>spaces</i>.</dd>
1219:
1.464 mike 1220: <dt>If it is 0x2F (ASCII /) or 0x3E (ASCII >)</dt>
1.1 mike 1221:
1222: <dd>Abort the "get an attribute" algorithm. The attribute's
1223: name is the value of <var title="">attribute name</var>, its
1224: value is the empty string.</dd>
1225:
1.464 mike 1226: <dt>If it is in the range 0x41 (ASCII A) to 0x5A (ASCII
1227: Z)</dt>
1.1 mike 1228:
1229: <dd>Append the Unicode character with code point <span title=""><var title="">b</var>+0x20</span> to <var title="">attribute
1230: name</var> (where <var title="">b</var> is the value of the
1231: byte at <var title="">position</var>).</dd>
1232:
1233: <dt>Anything else</dt>
1234:
1235: <dd>Append the Unicode character with the same code point as the
1236: value of the byte at <var title="">position</var>) to <var title="">attribute name</var>. (It doesn't actually matter how
1237: bytes outside the ASCII range are handled here, since only
1238: ASCII characters can contribute to the detection of a character
1239: encoding.)</dd>
1240:
1241: </dl></li>
1242:
1243: <li><p>Advance <var title="">position</var> to the next byte and
1244: return to the previous step.</p></li>
1245:
1246: <li><p><i>Spaces</i>: If the byte at <var title="">position</var> is one of 0x09 (ASCII TAB), 0x0A (ASCII
1247: LF), 0x0C (ASCII FF), 0x0D (ASCII CR), or 0x20 (ASCII space) then
1248: advance <var title="">position</var> to the next byte, then,
1249: repeat this step.</p></li>
1250:
1251: <li><p>If the byte at <var title="">position</var> is
1.464 mike 1252: <em>not</em> 0x3D (ASCII =), abort the "get an attribute"
1.1 mike 1253: algorithm. The attribute's name is the value of <var title="">attribute name</var>, its value is the empty
1254: string.</p></li>
1255:
1256: <li><p>Advance <var title="">position</var> past the 0x3D (ASCII
1.464 mike 1257: =) byte.</p></li>
1.1 mike 1258:
1259: <li><p><i>Value:</i> If the byte at <var title="">position</var> is one of 0x09 (ASCII TAB), 0x0A (ASCII
1260: LF), 0x0C (ASCII FF), 0x0D (ASCII CR), or 0x20 (ASCII space) then
1261: advance <var title="">position</var> to the next byte, then,
1262: repeat this step.</p></li>
1263:
1264: <li><p>Process the byte at <var title="">position</var> as
1265: follows:</p>
1266:
1.464 mike 1267: <dl class="switch"><dt>If it is 0x22 (ASCII ") or 0x27 (ASCII ')</dt>
1.1 mike 1268:
1269: <dd>
1270:
1271: <ol><li>Let <var title="">b</var> be the value of the byte at
1272: <var title="">position</var>.</li>
1273:
1274: <li>Advance <var title="">position</var> to the next
1275: byte.</li>
1276:
1277: <li>If the value of the byte at <var title="">position</var>
1278: is the value of <var title="">b</var>, then advance <var title="">position</var> to the next byte and abort the "get
1279: an attribute" algorithm. The attribute's name is the value of
1280: <var title="">attribute name</var>, and its value is the
1281: value of <var title="">attribute value</var>.</li>
1282:
1.464 mike 1283: <li>Otherwise, if the value of the byte at <var title="">position</var> is in the range 0x41 (ASCII A) to
1284: 0x5A (ASCII Z), then append a Unicode character to <var title="">attribute value</var> whose code point is 0x20 more
1.1 mike 1285: than the value of the byte at <var title="">position</var>.</li>
1286:
1287: <li>Otherwise, append a Unicode character to <var title="">attribute value</var> whose code point is the same as
1288: the value of the byte at <var title="">position</var>.</li>
1289:
1290: <li>Return to the second step in these substeps.</li>
1291:
1292: </ol></dd>
1293:
1.464 mike 1294: <dt>If it is 0x3E (ASCII >)</dt>
1.1 mike 1295:
1296: <dd>Abort the "get an attribute" algorithm. The attribute's
1297: name is the value of <var title="">attribute name</var>, its
1298: value is the empty string.</dd>
1299:
1300:
1.464 mike 1301: <dt>If it is in the range 0x41 (ASCII A) to 0x5A (ASCII
1302: Z)</dt>
1.1 mike 1303:
1304: <dd>Append the Unicode character with code point <span title=""><var title="">b</var>+0x20</span> to <var title="">attribute
1305: value</var> (where <var title="">b</var> is the value of the
1306: byte at <var title="">position</var>). Advance <var title="">position</var> to the next byte.</dd>
1307:
1308: <dt>Anything else</dt>
1309:
1310: <dd>Append the Unicode character with the same code point as the
1311: value of the byte at <var title="">position</var>) to <var title="">attribute value</var>. Advance <var title="">position</var> to the next byte.</dd>
1312:
1313: </dl></li>
1314:
1315: <li><p>Process the byte at <var title="">position</var> as
1316: follows:</p>
1317:
1318: <dl class="switch"><dt>If it is 0x09 (ASCII TAB), 0x0A (ASCII LF), 0x0C (ASCII
1319: FF), 0x0D (ASCII CR), 0x20 (ASCII space), or 0x3E (ASCII
1.464 mike 1320: >)</dt>
1.1 mike 1321:
1322: <dd>Abort the "get an attribute" algorithm. The attribute's
1323: name is the value of <var title="">attribute name</var> and its
1324: value is the value of <var title="">attribute value</var>.</dd>
1325:
1.464 mike 1326: <dt>If it is in the range 0x41 (ASCII A) to 0x5A (ASCII
1327: Z)</dt>
1.1 mike 1328:
1329: <dd>Append the Unicode character with code point <span title=""><var title="">b</var>+0x20</span> to <var title="">attribute
1330: value</var> (where <var title="">b</var> is the value of the
1331: byte at <var title="">position</var>).</dd>
1332:
1333: <dt>Anything else</dt>
1334:
1335: <dd>Append the Unicode character with the same code point as the
1336: value of the byte at <var title="">position</var>) to <var title="">attribute value</var>.</dd>
1337:
1338: </dl></li>
1339:
1340: <li><p>Advance <var title="">position</var> to the next byte and
1341: return to the previous step.</p></li>
1342:
1343: </ol><p>For the sake of interoperability, user agents should not use a
1344: pre-scan algorithm that returns different results than the one
1345: described above. (But, if you do, please at least let us know, so
1346: that we can improve this algorithm and benefit everyone...)</p>
1347:
1348: </li>
1349:
1350: <li><p>If the user agent has information on the likely encoding for
1351: this page, e.g. based on the encoding of the page when it was last
1352: visited, then return that encoding, with the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1353: <i>tentative</i>, and abort these steps.</p></li>
1354:
1.322 mike 1355: <li>
1356:
1357: <p>The user agent may attempt to autodetect the character encoding
1358: from applying frequency analysis or other algorithms to the data
1.568 mike 1359: stream. Such algorithms may use information about the resource
1360: other than the resource's contents, including the address of the
1361: resource. If autodetection succeeds in determining a character
1.322 mike 1362: encoding, then return that encoding, with the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1363: <i>tentative</i>, and abort these steps. <a href="references.html#refsUNIVCHARDET">[UNIVCHARDET]</a></p>
1364:
1365: <p class="note">The UTF-8 encoding has a highly detectable bit
1366: pattern. Documents that contain bytes with values greater than
1367: 0x7F which match the UTF-8 pattern are very likely to be UTF-8,
1368: while documents with byte sequences that do not match it are very
1369: likely not. User-agents are therefore encouraged to search for
1.485 mike 1370: this common encoding. <a href="references.html#refsPPUTF8">[PPUTF8]</a> <a href="references.html#refsUTF8DET">[UTF8DET]</a></p>
1.322 mike 1371:
1372: </li>
1.1 mike 1373:
1.501 mike 1374: <li>
1375:
1376: <p>Otherwise, return an implementation-defined or user-specified
1377: default character encoding, with the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a>
1378: <i>tentative</i>.</p>
1379:
1380: <p>In controlled environments or in environments where the
1381: encoding of documents can be prescribed (for example, for user
1382: agents intended for dedicated use in new networks), the
1383: comprehensive <code title="">UTF-8</code> encoding is
1384: suggested.</p>
1385:
1386: <p>In other environments, the default encoding is typically
1387: dependent on the user's locale (an approximation of the languages,
1388: and thus typically encodings, of the pages that the user is likely
1389: to frequent). The following table gives suggested defaults based
1.504 mike 1390: on the user's locale, for compatibility with legacy
1391: content. Locales are identified by BCP 47 language codes. <a href="references.html#refsBCP47">[BCP47]</a></p>
1.501 mike 1392:
1393: <!-- based on mozilla 1.9.1 localizations:
1394: http://mxr.mozilla.org/l10n-mozilla1.9.1/find?string=global%2Fintl.properties&tree=l10n-mozilla1.9.1&hint= -->
1395:
1.504 mike 1396: <table><thead><tr><th>Locale language
1.501 mike 1397: </th><th>Suggested default encoding
1398: </th></tr></thead><tbody><tr><td>ar
1399: </td><td>UTF-8
1400:
1401: </td></tr><tr><td>be
1402: </td><td>ISO-8859-5
1403:
1404: </td></tr><tr><td>bg
1405: </td><td>windows-1251
1406:
1407: </td></tr><tr><td>cs<!-- -CZ -->
1408: </td><td>ISO-8859-2
1409:
1410: </td></tr><tr><td>cy
1411: </td><td>UTF-8
1412:
1413: </td></tr><tr><td>fa<!-- -IR -->
1414: </td><td>UTF-8
1415:
1416: </td></tr><tr><td>he<!-- -IL -->
1417: </td><td>windows-1255
1418:
1419: </td></tr><tr><td>hr
1420: </td><td>UTF-8
1421:
1422: </td></tr><tr><td>hu<!-- -HU -->
1423: </td><td>ISO-8859-2
1424:
1425: </td></tr><tr><td>ja <!-- and ja-JP-mac -->
1426: </td><td>windows-31J <!-- Shift_JIS -->
1427:
1428: </td></tr><tr><td>kk
1429: </td><td>UTF-8
1430:
1431: </td></tr><tr><td>ko<!-- -KR -->
1432: </td><td>windows-949 <!-- EUC-KR -->
1433:
1434: </td></tr><tr><td>ku
1435: </td><td>windows-1254 <!-- ISO-8859-9 -->
1436:
1437: </td></tr><tr><td>lt
1438: </td><td>windows-1257
1439:
1440: </td></tr><tr><td>lv<!-- -LV -->
1441: </td><td>ISO-8859-13
1442:
1443: </td></tr><tr><td>mk<!-- -MK -->
1444: </td><td>UTF-8
1445:
1446: </td></tr><tr><td>or
1447: </td><td>UTF-8
1448:
1449: </td></tr><tr><td>pl<!-- -PL -->
1450: </td><td>ISO-8859-2
1451:
1452: </td></tr><tr><td>ro
1453: </td><td>UTF-8
1454:
1455: </td></tr><tr><td>ru
1456: </td><td>windows-1251
1457:
1458: </td></tr><tr><td>sk
1459: </td><td>windows-1250
1460:
1461: </td></tr><tr><td>sl
1462: </td><td>ISO-8859-2
1463:
1464: </td></tr><tr><td>sr
1465: </td><td>UTF-8
1466:
1467: </td></tr><tr><td>th
1468: </td><td>windows-874 <!-- TIS-620 -->
1469:
1470: </td></tr><tr><td>tr<!-- -TR -->
1471: </td><td>windows-1254 <!-- ISO-8859-9 -->
1472:
1.503 mike 1473: </td></tr><tr><td>uk
1.501 mike 1474: </td><td>windows-1251
1475:
1476: </td></tr><tr><td>vi
1477: </td><td>UTF-8
1478:
1479: </td></tr><tr><td>zh-CN
1480: </td><td>GB18030
1481:
1482: </td></tr><tr><td>zh-TW
1483: </td><td>Big5
1484:
1485: </td></tr><tr><td>All other locales
1486: </td><td>windows-1252
1487:
1488: </td></tr></tbody></table></li>
1.1 mike 1489:
1490: </ol><p>The <a href="dom.html#document-s-character-encoding">document's character encoding</a> must immediately
1491: be set to the value returned from this algorithm, at the same time
1492: as the user agent uses the returned value to select the decoder to
1493: use for the input stream.</p>
1494:
1.582 mike 1495: <p class="note">This algorithm is a <a href="introduction.html#willful-violation">willful violation</a>
1496: of the HTTP specification, which requires that the encoding be
1497: assumed to be ISO-8859-1 in the absence of a <a href="semantics.html#character-encoding-declaration">character
1.647 mike 1498: encoding declaration</a> to the contrary, and of RFC 2046,
1.582 mike 1499: which requires that the encoding be assumed to be US-ASCII in the
1500: absence of a <a href="semantics.html#character-encoding-declaration">character encoding declaration</a> to the
1501: contrary. This specification's third approach is motivated by a
1502: desire to be maximally compatible with legacy content. <a href="references.html#refsHTTP">[HTTP]</a> <a href="references.html#refsRFC2046">[RFC2046]</a></p>
1503:
1.1 mike 1504:
1.614 mike 1505: <h5 id="character-encodings-0"><span class="secno">9.2.2.2 </span>Character encodings</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1506:
1.237 mike 1507: <p>User agents must at a minimum support the UTF-8 and Windows-1252
1508: encodings, but may support more.</p>
1509:
1510: <p class="note">It is not unusual for Web browsers to support dozens
1511: if not upwards of a hundred distinct character encodings.</p>
1512:
1.365 mike 1513: <p>User agents must support the <a href="infrastructure.html#preferred-mime-name">preferred MIME name</a> of
1514: every character encoding they support, and should support all the
1515: IANA-registered names and aliases of every character encoding they
1516: support. <a href="references.html#refsIANACHARSET">[IANACHARSET]</a></p>
1.237 mike 1517:
1518: <p>When comparing a string specifying a character encoding with the
1519: name or alias of a character encoding to determine if they are
1520: equal, user agents must remove any leading or trailing <a href="infrastructure.html#space-character" title="space character">space characters</a> in both names, and
1521: then perform the comparison in an <a href="infrastructure.html#ascii-case-insensitive">ASCII
1522: case-insensitive</a> manner.</p>
1523:
1.539 mike 1524: <hr><p>When a user agent would otherwise use an encoding given in the
1.237 mike 1525: first column of the following table to either convert content to
1526: Unicode characters or convert Unicode characters to bytes, it must
1527: instead use the encoding given in the cell in the second column of
1528: the same row. When a byte or sequence of bytes is treated
1529: differently due to this encoding aliasing, it is said to have been
1530: <dfn id="misinterpreted-for-compatibility">misinterpreted for compatibility</dfn>.</p>
1531:
1532: <table><caption>Character encoding overrides</caption>
1533: <thead><tr><th> Input encoding </th><th> Replacement encoding </th><th> References
1534: </th></tr></thead><tbody><!-- how about EUC-JP? --><tr><td> EUC-KR </td><td> windows-949 </td><td>
1535: <a href="references.html#refsEUCKR">[EUCKR]</a>
1536: <a href="references.html#refsWIN949">[WIN949]</a>
1537: </td></tr><tr><td> GB2312 </td><td> GBK </td><td>
1538: <a href="references.html#refsRFC1345">[RFC1345]</a>
1539: <a href="references.html#refsGBK">[GBK]</a>
1540: </td></tr><tr><td> GB_2312-80 </td><td> GBK </td><td>
1541: <a href="references.html#refsRFC1345">[RFC1345]</a>
1542: <a href="references.html#refsGBK">[GBK]</a>
1543: </td></tr><tr><td> ISO-8859-1 </td><td> windows-1252 </td><td>
1544: <a href="references.html#refsRFC1345">[RFC1345]</a>
1545: <a href="references.html#refsWIN1252">[WIN1252]</a>
1546: </td></tr><tr><td> ISO-8859-9 </td><td> windows-1254 </td><td>
1547: <a href="references.html#refsRFC1345">[RFC1345]</a>
1548: <a href="references.html#refsWIN1254">[WIN1254]</a>
1549: </td></tr><tr><td> ISO-8859-11 </td><td> windows-874 </td><td>
1550: <a href="references.html#refsISO885911">[ISO885911]</a>
1551: <a href="references.html#refsWIN874">[WIN874]</a>
1552: </td></tr><tr><td> KS_C_5601-1987 </td><td> windows-949 </td><td>
1553: <a href="references.html#refsRFC1345">[RFC1345]</a>
1554: <a href="references.html#refsWIN949">[WIN949]</a>
1555: </td></tr><tr><td> Shift_JIS </td><td> windows-31J </td><td>
1556: <a href="references.html#refsSHIFTJIS">[SHIFTJIS]</a>
1557: <a href="references.html#refsWIN31J">[WIN31J]</a>
1558: </td></tr><tr><td> TIS-620 </td><td> windows-874 </td><td>
1559: <a href="references.html#refsTIS620">[TIS620]</a>
1560: <a href="references.html#refsWIN874">[WIN874]</a>
1561: </td></tr><tr><td> US-ASCII </td><td> windows-1252 </td><td>
1562: <a href="references.html#refsRFC1345">[RFC1345]</a>
1563: <a href="references.html#refsWIN1252">[WIN1252]</a>
1564: </td></tr></tbody></table><p class="note">The requirement to treat certain encodings as other
1565: encodings according to the table above is a <a href="introduction.html#willful-violation">willful
1566: violation</a> of the W3C Character Model specification, motivated
1567: by a desire for compatibility with legacy content. <a href="references.html#refsCHARMOD">[CHARMOD]</a></p>
1568:
1569: <p>When a user agent is to use the UTF-16 encoding but no BOM has
1570: been found, user agents must default to UTF-16LE.</p>
1571:
1572: <p class="note">The requirement to default UTF-16 to LE rather than
1573: BE is a <a href="introduction.html#willful-violation">willful violation</a> of RFC 2781, motivated by a
1.581 mike 1574: desire for compatibility with legacy content. <a href="references.html#refsRFC2781">[RFC2781]</a></p>
1.237 mike 1575:
1576: <hr><p>User agents must not support the CESU-8, UTF-7, BOCU-1 and SCSU
1577: encodings. <a href="references.html#refsCESU8">[CESU8]</a> <a href="references.html#refsUTF7">[UTF7]</a> <a href="references.html#refsBOCU1">[BOCU1]</a> <a href="references.html#refsSCSU">[SCSU]</a></p>
1578:
1579: <p>Support for encodings based on EBCDIC is not recommended. This
1580: encoding is rarely used for publicly-facing Web content.</p>
1581:
1582: <p>Support for UTF-32 is not recommended. This encoding is rarely
1583: used, and frequently implemented incorrectly.</p>
1584:
1585: <p class="note">This specification does not make any attempt to
1586: support EBCDIC-based encodings and UTF-32 in its algorithms; support
1587: and use of these encodings can thus lead to unexpected behavior in
1588: implementations of this specification.</p>
1589:
1590:
1591:
1.614 mike 1592: <h5 id="preprocessing-the-input-stream"><span class="secno">9.2.2.3 </span>Preprocessing the input stream</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1593:
1594: <p>Given an encoding, the bytes in the input stream must be
1595: converted to Unicode characters for the tokenizer, as described by
1596: the rules for that encoding, except that the leading U+FEFF BYTE
1597: ORDER MARK character, if any, must not be stripped by the encoding
1598: layer (it is stripped by the rule below).</p> <!-- this is to
1599: prevent two leading BOMs from being both stripped, once by the
1600: decoder, and once by the parser -->
1601:
1602: <p>Bytes or sequences of bytes in the original byte stream that
1.393 mike 1603: could not be converted to Unicode code points must be converted to
1604: U+FFFD REPLACEMENT CHARACTERs.</p>
1.1 mike 1605:
1606: <p class="note">Bytes or sequences of bytes in the original byte
1607: stream that did not conform to the encoding specification
1608: (e.g. invalid UTF-8 byte sequences in a UTF-8 input stream) are
1609: errors that conformance checkers are expected to report.</p>
1610:
1.438 mike 1611: <p>Any byte or sequence of bytes in the original byte stream that is
1612: <a href="#misinterpreted-for-compatibility">misinterpreted for compatibility</a> is a <a href="#parse-error">parse
1.1 mike 1613: error</a>.</p>
1614:
1615: <p>One leading U+FEFF BYTE ORDER MARK character must be ignored if
1616: any are present.</p>
1617:
1.300 mike 1618: <p class="note">The requirement to strip a U+FEFF BYTE ORDER MARK
1619: character regardless of whether that character was used to determine
1620: the byte order is a <a href="introduction.html#willful-violation">willful violation</a> of Unicode,
1621: motivated by a desire to increase the resilience of user agents in
1622: the face of naïve transcoders.</p>
1623:
1.316 mike 1624: <p>All U+0000 NULL characters and code points in the range U+D800 to
1.315 mike 1625: U+DFFF<!-- surrogates not allowed e.g. in UTF-8, and we don't want
1626: them to suddenly turn into codepoints when they go through a UTF-16
1627: pipe --> in the input must be replaced by U+FFFD REPLACEMENT
1.316 mike 1628: CHARACTERs. Any occurrences of such characters and code points are
1629: <a href="#parse-error" title="parse error">parse errors</a>.</p>
1.1 mike 1630:
1631: <p>Any occurrences of any characters in the ranges U+0001 to U+0008,
1632: <!-- HT, LF allowed --> <!-- U+000B is in the next list --> <!-- FF,
1633: CR allowed --> U+000E to U+001F, <!-- ASCII allowed --> U+007F
1.315 mike 1634: <!--to U+0084, (U+0085 NEL not allowed), U+0086--> to U+009F, U+FDD0
1635: to U+FDEF, and characters U+000B, U+FFFE, U+FFFF, U+1FFFE, U+1FFFF,
1636: U+2FFFE, U+2FFFF, U+3FFFE, U+3FFFF, U+4FFFE, U+4FFFF, U+5FFFE,
1637: U+5FFFF, U+6FFFE, U+6FFFF, U+7FFFE, U+7FFFF, U+8FFFE, U+8FFFF,
1638: U+9FFFE, U+9FFFF, U+AFFFE, U+AFFFF, U+BFFFE, U+BFFFF, U+CFFFE,
1639: U+CFFFF, U+DFFFE, U+DFFFF, U+EFFFE, U+EFFFF, U+FFFFE, U+FFFFF,
1640: U+10FFFE, and U+10FFFF are <a href="#parse-error" title="parse error">parse
1.316 mike 1641: errors</a>. These are all control characters or permanently
1642: undefined Unicode characters (noncharacters).</p>
1.1 mike 1643:
1644: <p>U+000D CARRIAGE RETURN (CR) characters and U+000A LINE FEED (LF)
1645: characters are treated specially. Any CR characters that are
1646: followed by LF characters must be removed, and any CR characters not
1647: followed by LF characters must be converted to LF characters. Thus,
1648: newlines in HTML DOMs are represented by LF characters, and there
1649: are never any CR characters in the input to the
1650: <a href="#tokenization">tokenization</a> stage.</p>
1651:
1652: <p>The <dfn id="next-input-character">next input character</dfn> is the first character in the
1653: input stream that has not yet been <dfn id="consumed">consumed</dfn>. Initially,
1654: the <i><a href="#next-input-character">next input character</a></i> is the first character in the
1655: input. The <dfn id="current-input-character">current input character</dfn> is the last character
1656: to have been <i><a href="#consumed">consumed</a></i>.</p>
1657:
1658: <p>The <dfn id="insertion-point">insertion point</dfn> is the position (just before a
1659: character or just before the end of the input stream) where content
1.159 mike 1660: inserted using <code title="dom-document-write"><a href="embedded-content-0.html#dom-document-write">document.write()</a></code> is actually
1.1 mike 1661: inserted. The insertion point is relative to the position of the
1662: character immediately after it, it is not an absolute offset into
1663: the input stream. Initially, the insertion point is
1.10 mike 1664: undefined.</p>
1.1 mike 1665:
1666: <p>The "EOF" character in the tables below is a conceptual character
1667: representing the end of the <a href="#the-input-stream">input stream</a>. If the parser
1.159 mike 1668: is a <a href="embedded-content-0.html#script-created-parser">script-created parser</a>, then the end of the
1.1 mike 1669: <a href="#the-input-stream">input stream</a> is reached when an <dfn id="explicit-eof-character">explicit "EOF"
1.159 mike 1670: character</dfn> (inserted by the <code title="dom-document-close"><a href="embedded-content-0.html#dom-document-close">document.close()</a></code> method) is
1.1 mike 1671: consumed. Otherwise, the "EOF" character is not a real character in
1672: the stream, but rather the lack of any further characters.</p>
1673:
1674:
1.614 mike 1675: <h5 id="changing-the-encoding-while-parsing"><span class="secno">9.2.2.4 </span>Changing the encoding while parsing</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1676:
1677: <p>When the parser requires the user agent to <dfn id="change-the-encoding">change the
1678: encoding</dfn>, it must run the following steps. This might happen
1679: if the <a href="#encoding-sniffing-algorithm">encoding sniffing algorithm</a> described above
1680: failed to find an encoding, or if it found an encoding that was not
1681: the actual encoding of the file.</p>
1682:
1683: <ol><li>If the new encoding is identical or equivalent to the encoding
1684: that is already being used to interpret the input stream, then set
1685: the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> to
1686: <i>certain</i> and abort these steps. This happens when the
1687: encoding information found in the file matches what the
1688: <a href="#encoding-sniffing-algorithm">encoding sniffing algorithm</a> determined to be the
1689: encoding, and in the second pass through the parser if the first
1690: pass found that the encoding sniffing algorithm described in the
1691: earlier section failed to find the right encoding.</li>
1692:
1693: <li>If the encoding that is already being used to interpret the
1694: input stream is a UTF-16 encoding, then set the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> to
1695: <i>certain</i> and abort these steps. The new encoding is ignored;
1696: if it was anything but the same encoding, then it would be clearly
1697: incorrect.</li>
1698:
1699: <li>If the new encoding is a UTF-16 encoding, change it to
1700: UTF-8.</li>
1701:
1702: <li>If all the bytes up to the last byte converted by the current
1703: decoder have the same Unicode interpretations in both the current
1704: encoding and the new encoding, and if the user agent supports
1705: changing the converter on the fly, then the user agent may change
1706: to the new converter for the encoding on the fly. Set the
1707: <a href="dom.html#document-s-character-encoding">document's character encoding</a> and the encoding used to
1708: convert the input stream to the new encoding, set the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> to
1709: <i>certain</i>, and abort these steps.</li>
1710:
1711: <li>Otherwise, <a href="history.html#navigate">navigate</a> to the document again, with
1712: <a href="history.html#replacement-enabled">replacement enabled</a>, and using the same <a href="history.html#source-browsing-context">source
1713: browsing context</a>, but this time skip the <a href="#encoding-sniffing-algorithm">encoding
1714: sniffing algorithm</a> and instead just set the encoding to the
1715: new encoding and the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> to
1716: <i>certain</i>. Whenever possible, this should be done without
1717: actually contacting the network layer (the bytes should be
1718: re-parsed from memory), even if, e.g., the document is marked as
1719: not being cacheable. If this is not possible and contacting the
1720: network layer would involve repeating a request that uses a method
1721: other than HTTP GET (<a href="infrastructure.html#concept-http-equivalent-get" title="concept-http-equivalent-get">or
1722: equivalent</a> for non-HTTP URLs), then instead set the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> to
1723: <i>certain</i> and ignore the new encoding. The resource will be
1724: misinterpreted. User agents may notify the user of the situation,
1725: to aid in application development.</li>
1726:
1.266 mike 1727: </ol></div><div class="impl">
1728:
1.614 mike 1729: <h4 id="parse-state"><span class="secno">9.2.3 </span>Parse state</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1730:
1.614 mike 1731: <h5 id="the-insertion-mode"><span class="secno">9.2.3.1 </span>The insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1732:
1733: <p>The <dfn id="insertion-mode">insertion mode</dfn> is a state variable that controls
1734: the primary operation of the tree construction stage.</p>
1735:
1736: <p>Initially, the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-initial-insertion-mode" title="insertion mode: initial">initial</a>". It can change to
1737: "<a href="#the-before-html-insertion-mode" title="insertion mode: before html">before html</a>",
1738: "<a href="#the-before-head-insertion-mode" title="insertion mode: before head">before head</a>",
1739: "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>", "<a href="#parsing-main-inheadnoscript" title="insertion mode: in head noscript">in head noscript</a>",
1.540 mike 1740: "<a href="#the-after-head-insertion-mode" title="insertion mode: after head">after head</a>", "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>", "<a href="#parsing-main-incdata" title="insertion mode: text">text</a>",
1.1 mike 1741: "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>", "<a href="#parsing-main-intabletext" title="insertion mode: in table text">in table text</a>", "<a href="#parsing-main-incaption" title="insertion mode: in caption">in caption</a>", "<a href="#parsing-main-incolgroup" title="insertion mode: in column group">in column group</a>",
1742: "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table body</a>",
1743: "<a href="#parsing-main-intr" title="insertion mode: in row">in row</a>", "<a href="#parsing-main-intd" title="insertion mode: in cell">in cell</a>", "<a href="#parsing-main-inselect" title="insertion mode: in select">in select</a>", "<a href="#parsing-main-inselectintable" title="insertion mode: in select in table">in select in
1744: table</a>", "<a href="#parsing-main-inforeign" title="insertion mode: in foreign content">in
1745: foreign content</a>", "<a href="#parsing-main-afterbody" title="insertion mode: after
1746: body">after body</a>", "<a href="#parsing-main-inframeset" title="insertion mode: in
1747: frameset">in frameset</a>", "<a href="#parsing-main-afterframeset" title="insertion mode: after
1748: frameset">after frameset</a>", "<a href="#the-after-after-body-insertion-mode" title="insertion mode:
1749: after after body">after after body</a>", and "<a href="#the-after-after-frameset-insertion-mode" title="insertion mode: after after frameset">after after
1750: frameset</a>" during the course of the parsing, as described in
1751: the <a href="#tree-construction">tree construction</a> stage. The insertion mode affects
1752: how tokens are processed and whether CDATA sections are
1753: supported.</p>
1754:
1755: <p>Seven of these modes, namely "<a href="#parsing-main-inhead" title="insertion mode: in
1756: head">in head</a>", "<a href="#parsing-main-inbody" title="insertion mode: in body">in
1757: body</a>", "<a href="#parsing-main-intable" title="insertion mode: in table">in
1758: table</a>", "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table
1759: body</a>", "<a href="#parsing-main-intr" title="insertion mode: in row">in row</a>",
1760: "<a href="#parsing-main-intd" title="insertion mode: in cell">in cell</a>", and "<a href="#parsing-main-inselect" title="insertion mode: in select">in select</a>", are special, in
1761: that the other modes defer to them at various times. When the
1762: algorithm below says that the user agent is to do something
1763: "<dfn id="using-the-rules-for">using the rules for</dfn> the <var title="">m</var> insertion
1764: mode", where <var title="">m</var> is one of these modes, the user
1765: agent must use the rules described under the <var title="">m</var>
1766: <a href="#insertion-mode">insertion mode</a>'s section, but must leave the
1767: <a href="#insertion-mode">insertion mode</a> unchanged unless the rules in <var title="">m</var> themselves switch the <a href="#insertion-mode">insertion mode</a>
1768: to a new value.</p>
1769:
1770: <p>When the insertion mode is switched to "<a href="#parsing-main-incdata" title="insertion
1.540 mike 1771: mode: text">text</a>" or "<a href="#parsing-main-intabletext" title="insertion mode: in table
1772: text">in table text</a>", the <dfn id="original-insertion-mode">original insertion mode</dfn>
1773: is also set. This is the insertion mode to which the tree
1774: construction stage will return.</p>
1.1 mike 1775:
1776: <p>When the insertion mode is switched to "<a href="#parsing-main-inforeign" title="insertion
1777: mode: in foreign content">in foreign content</a>", the
1778: <dfn id="secondary-insertion-mode">secondary insertion mode</dfn> is also set. This secondary mode
1779: is used within the rules for the "<a href="#parsing-main-inforeign" title="insertion mode: in
1780: foreign content">in foreign content</a>" mode to handle HTML
1781: (i.e. not foreign) content.</p>
1782:
1783: <hr><p>When the steps below require the UA to <dfn id="reset-the-insertion-mode-appropriately">reset the insertion
1784: mode appropriately</dfn>, it means the UA must follow these
1785: steps:</p>
1786:
1787: <ol><li>Let <var title="">last</var> be false.</li>
1788:
1.604 mike 1789: <li>Let <var title="">foreign</var> be false.</li>
1790:
1.1 mike 1791: <li>Let <var title="">node</var> be the last node in the
1792: <a href="#stack-of-open-elements">stack of open elements</a>.</li>
1793:
1.604 mike 1794: <li><i>Loop</i>: If <var title="">node</var> is the first node in
1795: the stack of open elements, then set <var title="">last</var> to
1796: true and set <var title="">node</var> to the <var title="">context</var> element. (<a href="#fragment-case">fragment case</a>)</li>
1.1 mike 1797:
1798: <li>If <var title="">node</var> is a <code><a href="forms.html#the-select-element">select</a></code> element,
1.604 mike 1799: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inselect" title="insertion mode: in select">in select</a>" and jump to the
1800: step marked <i title="">end</i>. (<a href="#fragment-case">fragment case</a>)</li>
1.1 mike 1801:
1802: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-td-element">td</a></code> or
1803: <code><a href="tabular-data.html#the-th-element">th</a></code> element and <var title="">last</var> is false, then
1804: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intd" title="insertion
1.604 mike 1805: mode: in cell">in cell</a>" and jump to the step marked <i title="">end</i>.</li>
1.1 mike 1806:
1807: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, then
1808: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intr" title="insertion
1.604 mike 1809: mode: in row">in row</a>" and jump to the step marked <i title="">end</i>.</li>
1.1 mike 1810:
1811: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>,
1812: <code><a href="tabular-data.html#the-thead-element">thead</a></code>, or <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element, then switch the
1813: <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intbody" title="insertion mode: in
1.604 mike 1814: table body">in table body</a>" and jump to the step marked <i title="">end</i>.</li>
1.1 mike 1815:
1816: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-caption-element">caption</a></code> element,
1.604 mike 1817: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incaption" title="insertion mode: in caption">in caption</a>" and jump to
1818: the step marked <i title="">end</i>.</li>
1.1 mike 1819:
1820: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element,
1821: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incolgroup" title="insertion mode: in column group">in column group</a>" and
1.604 mike 1822: jump to the step marked <i title="">end</i>. (<a href="#fragment-case">fragment
1823: case</a>)</li>
1.1 mike 1824:
1825: <li>If <var title="">node</var> is a <code><a href="tabular-data.html#the-table-element">table</a></code> element,
1.604 mike 1826: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>" and jump to the
1827: step marked <i title="">end</i>.</li>
1.1 mike 1828:
1.159 mike 1829: <li>If <var title="">node</var> is a <code><a href="semantics.html#the-head-element-0">head</a></code> element,
1.604 mike 1830: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" ("<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>"! <em> not "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>"</em>!) and jump to
1831: the step marked <i title="">end</i>. (<a href="#fragment-case">fragment
1832: case</a>)</li> <!-- This is only here for now in case people
1833: think that the spec accidentally omitted it and try to "fix"
1834: it. Note that noscript-in-head is also handled this way. This is
1835: all intentional. The only thing it doesn't handle is the
1836: scripting-disabled fragment parsing case for a <head> element
1837: containing a <noscript> which itself contains something other than
1838: a <link> or a <style> element; you'd expect that to break out of
1839: the <noscript> but it doesn't. This is an edge case that doesn't
1840: affect the spec, since the algorithm for fragment parsing is only
1841: used for innerHTML/outerHTML/insertAdjacentHTML(), where we know
1842: scripting is enabled. -->
1.1 mike 1843:
1.159 mike 1844: <li>If <var title="">node</var> is a <code><a href="semantics.html#the-body-element-0">body</a></code> element,
1.604 mike 1845: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" and jump to the
1846: step marked <i title="">end</i>.</li>
1.1 mike 1847:
1.5 mike 1848: <li>If <var title="">node</var> is a <code><a href="obsolete.html#frameset">frameset</a></code> element,
1.604 mike 1849: then switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inframeset" title="insertion mode: in frameset">in frameset</a>" and jump to
1850: the step marked <i title="">end</i>. (<a href="#fragment-case">fragment
1851: case</a>)</li>
1.1 mike 1852:
1.159 mike 1853: <li>If <var title="">node</var> is an <code><a href="semantics.html#the-html-element-0">html</a></code> element,
1.333 mike 1854: then <!--: if the <span><code title="">head</code> element
1855: pointer</span> is null,--> switch the <a href="#insertion-mode">insertion mode</a>
1856: to "<a href="#the-before-head-insertion-mode" title="insertion mode: before head">before
1857: head</a>"<!--, otherwise, switch the <span>insertion mode</span>
1858: to "<span title="insertion mode: after head">after head</span>".-->
1.604 mike 1859: Then, <!-- in either case, --> jump to the step marked <i title="">end</i>. (<a href="#fragment-case">fragment case</a>)</li> <!-- if the
1860: head element pointer can ever be non-null when we're going through
1861: these steps, we'll need to uncomment out the commented-out bits -->
1862:
1863: <li>If <var title="">node</var> is an element from the <a href="#mathml-namespace">MathML
1864: namespace</a> or the <a href="#svg-namespace">SVG namespace</a>, then set the
1865: <var title="">foreign</var> flag to true.</li>
1.1 mike 1866:
1867: <li>If <var title="">last</var> is true, then switch the
1868: <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inbody" title="insertion mode: in
1.604 mike 1869: body">in body</a>" and jump to the step marked <i title="">end</i>. (<a href="#fragment-case">fragment case</a>)</li>
1.1 mike 1870:
1871: <li>Let <var title="">node</var> now be the node before <var title="">node</var> in the <a href="#stack-of-open-elements">stack of open
1872: elements</a>.</li>
1873:
1.604 mike 1874: <li>Return to the step marked <i>loop</i>.</li>
1875:
1876: <li><i>End</i>: If <var title="">foreign</var> is true, switch the
1877: <a href="#secondary-insertion-mode">secondary insertion mode</a> to whatever the
1878: <a href="#insertion-mode">insertion mode</a> is set to, and switch the
1879: <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inforeign" title="insertion mode: in
1880: foreign content">in foreign content</a>".</li>
1.1 mike 1881:
1.614 mike 1882: </ol><h5 id="the-stack-of-open-elements"><span class="secno">9.2.3.2 </span>The stack of open elements</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 1883:
1884: <p>Initially, the <dfn id="stack-of-open-elements">stack of open elements</dfn> is empty. The
1885: stack grows downwards; the topmost node on the stack is the first
1886: one added to the stack, and the bottommost node of the stack is the
1887: most recently added node in the stack (notwithstanding when the
1888: stack is manipulated in a random access fashion as part of <a href="#adoptionAgency">the handling for misnested tags</a>).</p>
1889:
1890: <p>The "<a href="#the-before-html-insertion-mode" title="insertion mode: before html">before
1891: html</a>" <a href="#insertion-mode">insertion mode</a> creates the
1.159 mike 1892: <code><a href="semantics.html#the-html-element-0">html</a></code> root element node, which is then added to the
1.1 mike 1893: stack.</p>
1894:
1895: <p>In the <a href="#fragment-case">fragment case</a>, the <a href="#stack-of-open-elements">stack of open
1.159 mike 1896: elements</a> is initialized to contain an <code><a href="semantics.html#the-html-element-0">html</a></code>
1.1 mike 1897: element that is created as part of <a href="#html-fragment-parsing-algorithm" title="html fragment
1898: parsing algorithm">that algorithm</a>. (The <a href="#fragment-case">fragment
1899: case</a> skips the "<a href="#the-before-html-insertion-mode" title="insertion mode: before
1900: html">before html</a>" <a href="#insertion-mode">insertion mode</a>.)</p>
1901:
1.159 mike 1902: <p>The <code><a href="semantics.html#the-html-element-0">html</a></code> node, however it is created, is the topmost
1.1 mike 1903: node of the stack. It never gets popped off the stack.</p>
1904:
1905: <p>The <dfn id="current-node">current node</dfn> is the bottommost node in this
1906: stack.</p>
1907:
1908: <p>The <dfn id="current-table">current table</dfn> is the last <code><a href="tabular-data.html#the-table-element">table</a></code>
1909: element in the <a href="#stack-of-open-elements">stack of open elements</a>, if there is
1910: one. If there is no <code><a href="tabular-data.html#the-table-element">table</a></code> element in the <a href="#stack-of-open-elements">stack of
1911: open elements</a> (<a href="#fragment-case">fragment case</a>), then the
1912: <a href="#current-table">current table</a> is the first element in the <a href="#stack-of-open-elements">stack
1.159 mike 1913: of open elements</a> (the <code><a href="semantics.html#the-html-element-0">html</a></code> element).</p>
1.1 mike 1914:
1915: <p>Elements in the stack fall into the following categories:</p>
1916:
1917: <dl><dt><dfn id="special">Special</dfn></dt>
1918:
1919: <dd><p>The following HTML elements have varying levels of special
1920: parsing rules: <code><a href="semantics.html#the-address-element">address</a></code>, <code><a href="the-canvas-element.html#the-area-element">area</a></code>,
1921: <code><a href="semantics.html#the-article-element">article</a></code>, <code><a href="semantics.html#the-aside-element">aside</a></code>, <code><a href="semantics.html#the-base-element">base</a></code>,
1.5 mike 1922: <code><a href="obsolete.html#basefont">basefont</a></code>, <code>bgsound</code>,
1.159 mike 1923: <code><a href="semantics.html#the-blockquote-element">blockquote</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="semantics.html#the-br-element">br</a></code>,
1.5 mike 1924: <code><a href="obsolete.html#center">center</a></code>, <code><a href="tabular-data.html#the-col-element">col</a></code>, <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code>,
1.86 mike 1925: <code><a href="interactive-elements.html#the-command">command</a></code>, <!--v2DDATAGRID--><code>datagrid</code>,
1.422 mike 1926: <code><a href="semantics.html#the-dd-element">dd</a></code>, <code><a href="interactive-elements.html#the-details-element">details</a></code>, <code><a href="obsolete.html#dir">dir</a></code>,
1927: <code><a href="semantics.html#the-div-element">div</a></code>, <code><a href="semantics.html#the-dl-element">dl</a></code>, <code><a href="semantics.html#the-dt-element">dt</a></code>,
1928: <code><a href="text-level-semantics.html#the-embed-element">embed</a></code>, <code><a href="forms.html#the-fieldset-element">fieldset</a></code>, <code><a href="text-level-semantics.html#the-figure-element">figure</a></code>,
1929: <code><a href="semantics.html#the-footer-element">footer</a></code>, <code><a href="forms.html#the-form-element">form</a></code>, <code><a href="obsolete.html#frame">frame</a></code>,
1930: <code><a href="obsolete.html#frameset">frameset</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h2</a></code>,
1931: <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h3</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h4</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h5</a></code>, <code><a href="semantics.html#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a></code>,
1932: <code><a href="semantics.html#the-head-element-0">head</a></code>, <code><a href="semantics.html#the-header-element">header</a></code>, <code><a href="semantics.html#the-hgroup-element">hgroup</a></code>,
1933: <code><a href="semantics.html#the-hr-element">hr</a></code>, <code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code>, <!-- <code>image</code>,
1934: (commented out because this isn't an element that can end up on the
1935: stack, so it doesn't matter) --> <code><a href="text-level-semantics.html#the-img-element">img</a></code>,
1936: <code><a href="forms.html#the-input-element">input</a></code>, <code><a href="obsolete.html#isindex-0">isindex</a></code>, <code><a href="semantics.html#the-li-element">li</a></code>,
1937: <code><a href="semantics.html#the-link-element">link</a></code>, <code><a href="obsolete.html#listing">listing</a></code>, <code><a href="interactive-elements.html#menus">menu</a></code>,
1938: <code><a href="semantics.html#meta">meta</a></code>, <code><a href="semantics.html#the-nav-element">nav</a></code>, <code><a href="obsolete.html#noembed">noembed</a></code>,
1939: <code><a href="obsolete.html#noframes">noframes</a></code>, <code><a href="semantics.html#the-noscript-element">noscript</a></code>, <code><a href="semantics.html#the-ol-element">ol</a></code>,
1940: <code><a href="semantics.html#the-p-element">p</a></code>, <code><a href="text-level-semantics.html#the-param-element">param</a></code>, <code><a href="obsolete.html#plaintext">plaintext</a></code>,
1941: <code><a href="semantics.html#the-pre-element">pre</a></code>, <code><a href="semantics.html#script">script</a></code>, <code><a href="semantics.html#the-section-element">section</a></code>,
1.589 mike 1942: <code><a href="forms.html#the-select-element">select</a></code>, <code><a href="semantics.html#the-style-element">style</a></code>, <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>,
1943: <code><a href="forms.html#the-textarea-element">textarea</a></code>, <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>, <code><a href="tabular-data.html#the-thead-element">thead</a></code>,
1944: <code><a href="semantics.html#the-title-element-0">title</a></code>, <code><a href="tabular-data.html#the-tr-element">tr</a></code>, <code><a href="semantics.html#the-ul-element">ul</a></code>,
1945: <code>wbr</code>, and <code><a href="obsolete.html#xmp">xmp</a></code>.</p></dd>
1.1 mike 1946:
1947: <dt><dfn id="scoping">Scoping</dfn></dt>
1948: <dd><p>The following HTML elements introduce new <a href="#has-an-element-in-scope" title="has
1949: an element in scope">scopes</a> for various parts of the
1.5 mike 1950: parsing: <code><a href="obsolete.html#the-applet-element">applet</a></code>, <code><a href="forms.html#the-button-element">button</a></code>,
1.159 mike 1951: <code><a href="tabular-data.html#the-caption-element">caption</a></code>, <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="obsolete.html#the-marquee-element">marquee</a></code>,
1952: <code><a href="text-level-semantics.html#the-object-element">object</a></code>, <code><a href="tabular-data.html#the-table-element">table</a></code>, <code><a href="tabular-data.html#the-td-element">td</a></code>,
1.1 mike 1953: <code><a href="tabular-data.html#the-th-element">th</a></code>, and SVG's <code>foreignObject</code>.</p></dd>
1954:
1955: <dt><dfn id="formatting">Formatting</dfn></dt>
1956: <dd><p>The following HTML elements are those that end up in the
1957: <a href="#list-of-active-formatting-elements">list of active formatting elements</a>: <code><a href="text-level-semantics.html#the-a-element">a</a></code>,
1.5 mike 1958: <code><a href="text-level-semantics.html#the-b-element">b</a></code>, <code><a href="obsolete.html#big">big</a></code>, <code><a href="text-level-semantics.html#the-code-element">code</a></code>,
1959: <code><a href="text-level-semantics.html#the-em-element">em</a></code>, <code><a href="obsolete.html#font">font</a></code>, <code><a href="text-level-semantics.html#the-i-element">i</a></code>,
1960: <code>nobr</code>, <code><a href="obsolete.html#s">s</a></code>, <code><a href="text-level-semantics.html#the-small-element">small</a></code>,
1961: <code><a href="obsolete.html#strike">strike</a></code>, <code><a href="text-level-semantics.html#the-strong-element">strong</a></code>, <code><a href="obsolete.html#tt">tt</a></code>, and
1962: <code><a href="obsolete.html#u">u</a></code>.</p></dd>
1.1 mike 1963:
1964: <dt><dfn id="phrasing">Phrasing</dfn></dt>
1965: <dd><p>All other elements found while parsing an HTML
1966: document.</p></dd>
1967:
1.234 mike 1968: </dl><p>The <a href="#stack-of-open-elements">stack of open elements</a> is said to <dfn id="has-an-element-in-the-specific-scope" title="has an element in the specific scope">have an element in a
1969: specific scope</dfn> consisting of a list of element types <var title="">list</var> when the following algorithm terminates in a
1970: match state:</p>
1.1 mike 1971:
1972: <ol><li><p>Initialize <var title="">node</var> to be the <a href="#current-node">current
1973: node</a> (the bottommost node of the stack).</p></li>
1974:
1975: <li><p>If <var title="">node</var> is the target node, terminate in
1976: a match state.</p></li>
1977:
1.234 mike 1978: <li><p>Otherwise, if <var title="">node</var> is one of the element
1979: types in <var title="">list</var>, terminate in a failure
1980: state.</p></li>
1.1 mike 1981:
1982: <li><p>Otherwise, set <var title="">node</var> to the previous
1983: entry in the <a href="#stack-of-open-elements">stack of open elements</a> and return to step
1984: 2. (This will never fail, since the loop will always terminate in
1985: the previous step if the top of the stack — an
1.159 mike 1986: <code><a href="semantics.html#the-html-element-0">html</a></code> element — is reached.)</p></li>
1.1 mike 1987:
1.234 mike 1988: </ol><p>The <a href="#stack-of-open-elements">stack of open elements</a> is said to <dfn id="has-an-element-in-scope" title="has an element in scope">have an element in scope</dfn> when
1989: it <a href="#has-an-element-in-the-specific-scope">has an element in the specific scope</a> consisting
1990: of the following element types:</p>
1991:
1992: <ul class="brief"><li><code><a href="obsolete.html#the-applet-element">applet</a></code> in the HTML namespace</li>
1993: <li><code><a href="tabular-data.html#the-caption-element">caption</a></code> in the HTML namespace</li>
1994: <li><code><a href="semantics.html#the-html-element-0">html</a></code> in the HTML namespace</li> <!-- (This can only happen if the <var title="">node</var> is the topmost node of the <span>stack of open elements</span>, and prevents the next step from being invoked if there are no more elements in the stack.) -->
1995: <li><code><a href="tabular-data.html#the-table-element">table</a></code> in the HTML namespace</li>
1996: <li><code><a href="tabular-data.html#the-td-element">td</a></code> in the HTML namespace</li>
1997: <li><code><a href="tabular-data.html#the-th-element">th</a></code> in the HTML namespace</li>
1998: <li><code><a href="forms.html#the-button-element">button</a></code> in the HTML namespace</li>
1999: <li><code><a href="obsolete.html#the-marquee-element">marquee</a></code> in the HTML namespace</li>
2000: <li><code><a href="text-level-semantics.html#the-object-element">object</a></code> in the HTML namespace</li>
2001: <li><code title="">foreignObject</code> in the SVG namespace</li>
2002: </ul><p>The <a href="#stack-of-open-elements">stack of open elements</a> is said to <dfn id="has-an-element-in-list-item-scope" title="has an element in list item scope">have an element in list
2003: item scope</dfn> when it <a href="#has-an-element-in-the-specific-scope">has an element in the specific
2004: scope</a> consisting of the following element types:</p>
2005:
2006: <ul class="brief"><li>All the element types listed above for the <i><a href="#has-an-element-in-scope">has an element
2007: in scope</a></i> algorithm.</li>
2008: <li><code><a href="semantics.html#the-ol-element">ol</a></code> in the HTML namespace</li>
2009: <li><code><a href="semantics.html#the-ul-element">ul</a></code> in the HTML namespace</li>
2010: </ul><p>The <a href="#stack-of-open-elements">stack of open elements</a> is said to <dfn id="has-an-element-in-table-scope" title="has an element in table scope">have an element in <em>table
2011: scope</em></dfn> when it <a href="#has-an-element-in-the-specific-scope">has an element in the specific
2012: scope</a> consisting of the following element types:</p>
2013:
2014: <ul class="brief"><li><code><a href="semantics.html#the-html-element-0">html</a></code> in the HTML namespace</li> <!-- (This can only happen if the <var title="">node</var> is the topmost node of the <span>stack of open elements</span>, and prevents the next step from being invoked if there are no more elements in the stack.) -->
2015: <li><code><a href="tabular-data.html#the-table-element">table</a></code> in the HTML namespace</li>
2016: </ul><p>Nothing happens if at any time any of the elements in the
1.1 mike 2017: <a href="#stack-of-open-elements">stack of open elements</a> are moved to a new location in,
2018: or removed from, the <code>Document</code> tree. In particular, the
2019: stack is not changed in this situation. This can cause, amongst
2020: other strange effects, content to be appended to nodes that are no
2021: longer in the DOM.</p>
2022:
2023: <p class="note">In some cases (namely, when <a href="#adoptionAgency">closing misnested formatting elements</a>),
2024: the stack is manipulated in a random-access fashion.</p>
2025:
2026:
1.614 mike 2027: <h5 id="the-list-of-active-formatting-elements"><span class="secno">9.2.3.3 </span>The list of active formatting elements</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2028:
2029: <p>Initially, the <dfn id="list-of-active-formatting-elements">list of active formatting elements</dfn> is
2030: empty. It is used to handle mis-nested <a href="#formatting" title="formatting">formatting element tags</a>.</p>
2031:
2032: <p>The list contains elements in the <a href="#formatting">formatting</a>
2033: category, and scope markers. The scope markers are inserted when
1.159 mike 2034: entering <code><a href="obsolete.html#the-applet-element">applet</a></code> elements, buttons, <code><a href="text-level-semantics.html#the-object-element">object</a></code>
1.1 mike 2035: elements, marquees, table cells, and table captions, and are used to
1.5 mike 2036: prevent formatting from "leaking" <em>into</em> <code><a href="obsolete.html#the-applet-element">applet</a></code>
1.159 mike 2037: elements, buttons, <code><a href="text-level-semantics.html#the-object-element">object</a></code> elements, marquees, and
1.1 mike 2038: tables.</p>
2039:
2040: <p class="note">The scope markers are unrelated to the concept of an
2041: element being <a href="#has-an-element-in-scope" title="has an element in scope">in
2042: scope</a>.</p>
2043:
2044: <p>In addition, each element in the <a href="#list-of-active-formatting-elements">list of active formatting
2045: elements</a> is associated with the token for which it was
2046: created, so that further elements can be created for that token if
2047: necessary.</p>
2048:
2049: <p>When the steps below require the UA to <dfn id="reconstruct-the-active-formatting-elements">reconstruct the
2050: active formatting elements</dfn>, the UA must perform the following
2051: steps:</p>
2052:
2053: <ol><li>If there are no entries in the <a href="#list-of-active-formatting-elements">list of active formatting
2054: elements</a>, then there is nothing to reconstruct; stop this
2055: algorithm.</li>
2056:
2057: <li>If the last (most recently added) entry in the <a href="#list-of-active-formatting-elements">list of
2058: active formatting elements</a> is a marker, or if it is an
2059: element that is in the <a href="#stack-of-open-elements">stack of open elements</a>, then
2060: there is nothing to reconstruct; stop this algorithm.</li>
2061:
2062: <li>Let <var title="">entry</var> be the last (most recently added)
2063: element in the <a href="#list-of-active-formatting-elements">list of active formatting
2064: elements</a>.</li>
2065:
2066: <li>If there are no entries before <var title="">entry</var> in the
2067: <a href="#list-of-active-formatting-elements">list of active formatting elements</a>, then jump to step
2068: 8.</li>
2069:
2070: <li>Let <var title="">entry</var> be the entry one earlier than
2071: <var title="">entry</var> in the <a href="#list-of-active-formatting-elements">list of active formatting
2072: elements</a>.</li>
2073:
2074: <li>If <var title="">entry</var> is neither a marker nor an element
2075: that is also in the <a href="#stack-of-open-elements">stack of open elements</a>, go to step
2076: 4.</li>
2077:
2078: <li>Let <var title="">entry</var> be the element one later than
2079: <var title="">entry</var> in the <a href="#list-of-active-formatting-elements">list of active formatting
2080: elements</a>.</li>
2081:
2082: <li><a href="#create-an-element-for-the-token">Create an element for the token</a> for which the
2083: element <var title="">entry</var> was created, to obtain <var title="">new element</var>.</li>
2084:
2085: <li>Append <var title="">new element</var> to the <a href="#current-node">current
2086: node</a> and push it onto the <a href="#stack-of-open-elements">stack of open
2087: elements</a> so that it is the new <a href="#current-node">current
2088: node</a>.</li>
2089:
2090: <li>Replace the entry for <var title="">entry</var> in the list
2091: with an entry for <var title="">new element</var>.</li>
2092:
2093: <li>If the entry for <var title="">new element</var> in the
2094: <a href="#list-of-active-formatting-elements">list of active formatting elements</a> is not the last
2095: entry in the list, return to step 7.</li>
2096:
2097: </ol><p>This has the effect of reopening all the formatting elements that
2098: were opened in the current body, cell, or caption (whichever is
2099: youngest) that haven't been explicitly closed.</p>
2100:
2101: <p class="note">The way this specification is written, the
2102: <a href="#list-of-active-formatting-elements">list of active formatting elements</a> always consists of
2103: elements in chronological order with the least recently added
2104: element first and the most recently added element last (except for
2105: while steps 8 to 11 of the above algorithm are being executed, of
2106: course).</p>
2107:
2108: <p>When the steps below require the UA to <dfn id="clear-the-list-of-active-formatting-elements-up-to-the-last-marker">clear the list of
2109: active formatting elements up to the last marker</dfn>, the UA must
2110: perform the following steps:</p>
2111:
2112: <ol><li>Let <var title="">entry</var> be the last (most recently added)
2113: entry in the <a href="#list-of-active-formatting-elements">list of active formatting elements</a>.</li>
2114:
2115: <li>Remove <var title="">entry</var> from the <a href="#list-of-active-formatting-elements">list of active
2116: formatting elements</a>.</li>
2117:
2118: <li>If <var title="">entry</var> was a marker, then stop the
2119: algorithm at this point. The list has been cleared up to the last
2120: marker.</li>
2121:
2122: <li>Go to step 1.</li>
2123:
1.614 mike 2124: </ol><h5 id="the-element-pointers"><span class="secno">9.2.3.4 </span>The element pointers</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2125:
2126: <p>Initially, the <dfn id="head-element-pointer"><code title="">head</code> element
2127: pointer</dfn> and the <dfn id="form-element-pointer"><code title="">form</code> element
2128: pointer</dfn> are both null.</p>
2129:
1.159 mike 2130: <p>Once a <code><a href="semantics.html#the-head-element-0">head</a></code> element has been parsed (whether
1.1 mike 2131: implicitly or explicitly) the <a href="#head-element-pointer"><code title="">head</code>
2132: element pointer</a> gets set to point to this node.</p>
2133:
2134: <p>The <a href="#form-element-pointer"><code title="">form</code> element pointer</a>
2135: points to the last <code><a href="forms.html#the-form-element">form</a></code> element that was opened and
2136: whose end tag has not yet been seen. It is used to make form
2137: controls associate with forms in the face of dramatically bad
2138: markup, for historical reasons.</p>
2139:
2140:
1.614 mike 2141: <h5 id="other-parsing-state-flags"><span class="secno">9.2.3.5 </span>Other parsing state flags</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2142:
2143: <p>The <dfn id="scripting-flag">scripting flag</dfn> is set to "enabled" if <a href="browsers.html#concept-n-script" title="concept-n-script">scripting was enabled</a> for the
2144: <code>Document</code> with which the parser is associated when the
2145: parser was created, and "disabled" otherwise.</p>
2146:
2147: <p class="note">The <a href="#scripting-flag">scripting flag</a> can be enabled even
2148: when the parser was originally created for the <a href="#html-fragment-parsing-algorithm">HTML fragment
2149: parsing algorithm</a>, even though <code><a href="semantics.html#script">script</a></code> elements
2150: don't execute in that case.</p>
2151:
2152: <p>The <dfn id="frameset-ok-flag">frameset-ok flag</dfn> is set to "ok" when the parser is
2153: created. It is set to "not ok" after certain tokens are seen.</p>
2154:
1.266 mike 2155: </div><div class="impl">
1.1 mike 2156:
1.159 mike 2157: <h4 id="tokenization"><span class="secno">9.2.4 </span><dfn>Tokenization</dfn></h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2158:
2159: <p>Implementations must act as if they used the following state
2160: machine to tokenize HTML. The state machine must start in the
2161: <a href="#data-state">data state</a>. Most states consume a single character,
2162: which may have various side-effects, and either switches the state
2163: machine to a new state to <em>reconsume</em> the same character, or
2164: switches it to a new state (to consume the next character), or
2165: repeats the same state (to consume the next character). Some states
2166: have more complicated behavior and can consume several characters
1.541 mike 2167: before switching to another state. In some cases, the tokenizer
2168: state is also changed by the tree construction stage.</p>
1.1 mike 2169:
1.541 mike 2170: <p>The exact behavior of certain states depends on the
2171: <a href="#insertion-mode">insertion mode</a> and the <a href="#stack-of-open-elements">stack of open
2172: elements</a>. Certain states also use a <dfn id="temporary-buffer"><var>temporary
2173: buffer</var></dfn> to track progress.</p>
1.1 mike 2174:
2175: <p>The output of the tokenization step is a series of zero or more
2176: of the following tokens: DOCTYPE, start tag, end tag, comment,
2177: character, end-of-file. DOCTYPE tokens have a name, a public
2178: identifier, a system identifier, and a <i>force-quirks
2179: flag</i>. When a DOCTYPE token is created, its name, public
2180: identifier, and system identifier must be marked as missing (which
2181: is a distinct state from the empty string), and the <i>force-quirks
2182: flag</i> must be set to <i>off</i> (its other state is
2183: <i>on</i>). Start and end tag tokens have a tag name, a
2184: <i>self-closing flag</i>, and a list of attributes, each of which
2185: has a name and a value. When a start or end tag token is created,
2186: its <i>self-closing flag</i> must be unset (its other state is that
2187: it be set), and its attributes list must be empty. Comment and
2188: character tokens have data.</p>
2189:
2190: <p>When a token is emitted, it must immediately be handled by the
2191: <a href="#tree-construction">tree construction</a> stage. The tree construction stage
1.541 mike 2192: can affect the state of the tokenization stage, and can insert
2193: additional characters into the stream. (For example, the
1.1 mike 2194: <code><a href="semantics.html#script">script</a></code> element can result in scripts executing and
1.159 mike 2195: using the <a href="embedded-content-0.html#dynamic-markup-insertion">dynamic markup insertion</a> APIs to insert
1.1 mike 2196: characters into the stream being tokenized.)</p>
2197:
2198: <p>When a start tag token is emitted with its <i>self-closing
2199: flag</i> set, if the flag is not <dfn id="acknowledge-self-closing-flag" title="acknowledge
2200: self-closing flag">acknowledged</dfn> when it is processed by the
2201: tree construction stage, that is a <a href="#parse-error">parse error</a>.</p>
2202:
2203: <p>When an end tag token is emitted with attributes, that is a
2204: <a href="#parse-error">parse error</a>.</p>
2205:
2206: <p>When an end tag token is emitted with its <i>self-closing
2207: flag</i> set, that is a <a href="#parse-error">parse error</a>.</p>
2208:
1.541 mike 2209: <p>An <dfn id="appropriate-end-tag-token">appropriate end tag token</dfn> is an end tag token whose
2210: tag name matches the tag name of the last start tag to have been
2211: emitted from this tokenizer, if any. If no start tag has been
2212: emitted from this tokenizer, then no end tag token is
2213: appropriate.</p>
2214:
1.1 mike 2215: <p>Before each step of the tokenizer, the user agent must first
2216: check the <a href="#parser-pause-flag">parser pause flag</a>. If it is true, then the
2217: tokenizer must abort the processing of any nested invocations of the
1.479 mike 2218: tokenizer, yielding control back to the caller.</p>
1.1 mike 2219:
2220: <p>The tokenizer state machine consists of the states defined in the
2221: following subsections.</p>
2222:
1.541 mike 2223:
1.333 mike 2224: <!-- Order of the lists below is supposed to be non-error then
2225: error, by unicode, then EOF, ending with "anything else" -->
1.1 mike 2226:
1.541 mike 2227:
1.614 mike 2228: <h5 id="data-state"><span class="secno">9.2.4.1 </span><dfn>Data state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2229:
2230: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2231:
2232: <dl class="switch"><dt>U+0026 AMPERSAND (&)</dt>
1.541 mike 2233: <dd>Switch to the <a href="#character-reference-in-data-state">character reference in data
1.56 mike 2234: state</a>.</dd>
1.1 mike 2235:
1.541 mike 2236: <dt>U+003C LESS-THAN SIGN (<)</dt>
2237: <dd>Switch to the <a href="#tag-open-state">tag open state</a>.</dd>
2238:
2239: <dt>EOF</dt>
2240: <dd>Emit an end-of-file token.</dd>
2241:
2242: <dt>Anything else</dt>
2243: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2244: token. Stay in the <a href="#data-state">data state</a>.</dd>
1.1 mike 2245:
1.618 mike 2246: </dl><h5 id="character-reference-in-data-state"><span class="secno">9.2.4.2 </span><dfn>Character reference in data state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
2247:
2248: <p>Attempt to <a href="#consume-a-character-reference">consume a character reference</a>, with no
2249: <a href="#additional-allowed-character">additional allowed character</a>.</p>
2250:
2251: <p>If nothing is returned, emit a U+0026 AMPERSAND character
2252: token.</p>
2253:
2254: <p>Otherwise, emit the character token that was returned.</p>
2255:
2256: <p>Finally, switch to the <a href="#data-state">data state</a>.</p>
2257:
2258:
2259: <h5 id="rcdata-state"><span class="secno">9.2.4.3 </span><dfn>RCDATA state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2260:
1.541 mike 2261: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2262:
1.541 mike 2263: <dl class="switch"><dt>U+0026 AMPERSAND (&)</dt>
1.618 mike 2264: <dd>Switch to the <a href="#character-reference-in-rcdata-state">character reference in RCDATA
1.541 mike 2265: state</a>.</dd>
1.1 mike 2266:
2267: <dt>U+003C LESS-THAN SIGN (<)</dt>
1.541 mike 2268: <dd>Switch to the <a href="#rcdata-less-than-sign-state">RCDATA less-than sign state</a>.</dd>
2269:
2270: <dt>EOF</dt>
2271: <dd>Emit an end-of-file token.</dd>
1.1 mike 2272:
1.541 mike 2273: <dt>Anything else</dt>
2274: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2275: token. Stay in the <a href="#rcdata-state">RCDATA state</a>.</dd>
1.1 mike 2276:
1.618 mike 2277: </dl><h5 id="character-reference-in-rcdata-state"><span class="secno">9.2.4.4 </span><dfn>Character reference in RCDATA state</dfn></h5>
2278:
2279: <p>Attempt to <a href="#consume-a-character-reference">consume a character reference</a>, with no
2280: <a href="#additional-allowed-character">additional allowed character</a>.</p>
2281:
2282: <p>If nothing is returned, emit a U+0026 AMPERSAND character
2283: token.</p>
2284:
2285: <p>Otherwise, emit the character token that was returned.</p>
2286:
2287: <p>Finally, switch to the <a href="#rcdata-state">RCDATA state</a>.</p>
2288:
2289:
2290: <h5 id="rawtext-state"><span class="secno">9.2.4.5 </span><dfn>RAWTEXT state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2291:
1.541 mike 2292: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2293:
1.541 mike 2294: <dl class="switch"><dt>U+003C LESS-THAN SIGN (<)</dt>
2295: <dd>Switch to the <a href="#rawtext-less-than-sign-state">RAWTEXT less-than sign state</a>.</dd>
1.1 mike 2296:
2297: <dt>EOF</dt>
2298: <dd>Emit an end-of-file token.</dd>
2299:
2300: <dt>Anything else</dt>
1.541 mike 2301: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2302: token. Stay in the <a href="#rawtext-state">RAWTEXT state</a>.</dd>
1.1 mike 2303:
1.618 mike 2304: </dl><h5 id="script-data-state"><span class="secno">9.2.4.6 </span><dfn>Script data state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2305:
1.541 mike 2306: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2307:
1.541 mike 2308: <dl class="switch"><dt>U+003C LESS-THAN SIGN (<)</dt>
2309: <dd>Switch to the <a href="#script-data-less-than-sign-state">script data less-than sign state</a>.</dd>
1.1 mike 2310:
1.541 mike 2311: <dt>EOF</dt>
2312: <dd>Emit an end-of-file token.</dd>
1.1 mike 2313:
1.541 mike 2314: <dt>Anything else</dt>
2315: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2316: token. Stay in the <a href="#script-data-state">script data state</a>.</dd>
1.1 mike 2317:
1.618 mike 2318: </dl><h5 id="plaintext-state"><span class="secno">9.2.4.7 </span><dfn>PLAINTEXT state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2319:
1.541 mike 2320: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2321:
1.541 mike 2322: <dl class="switch"><dt>EOF</dt>
2323: <dd>Emit an end-of-file token.</dd>
1.1 mike 2324:
1.541 mike 2325: <dt>Anything else</dt>
2326: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2327: token. Stay in the <a href="#plaintext-state">PLAINTEXT state</a>.</dd>
1.1 mike 2328:
1.618 mike 2329: </dl><h5 id="tag-open-state"><span class="secno">9.2.4.8 </span><dfn>Tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2330:
1.541 mike 2331: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2332:
1.541 mike 2333: <dl class="switch"><dt>U+0021 EXCLAMATION MARK (!)</dt>
2334: <dd>Switch to the <a href="#markup-declaration-open-state">markup declaration open state</a>.</dd>
1.1 mike 2335:
1.541 mike 2336: <dt>U+002F SOLIDUS (/)</dt>
2337: <dd>Switch to the <a href="#close-tag-open-state">close tag open state</a>.</dd>
1.1 mike 2338:
1.541 mike 2339: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2340: <dd>Create a new start tag token, set its tag name to the
2341: lowercase version of the <a href="#current-input-character">current input character</a> (add 0x0020 to the
2342: character's code point), then switch to the <a href="#tag-name-state">tag name
2343: state</a>. (Don't emit the token yet; further details will
2344: be filled in before it is emitted.)</dd>
1.1 mike 2345:
1.541 mike 2346: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2347: <dd>Create a new start tag token, set its tag name to the
2348: <a href="#current-input-character">current input character</a>, then switch to the <a href="#tag-name-state">tag
2349: name state</a>. (Don't emit the token yet; further details will
2350: be filled in before it is emitted.)</dd>
1.1 mike 2351:
1.541 mike 2352: <dt>U+003F QUESTION MARK (?)</dt>
2353: <dd><a href="#parse-error">Parse error</a>. Switch to the <a href="#bogus-comment-state">bogus
2354: comment state</a>.</dd>
1.1 mike 2355:
1.541 mike 2356: <dt>Anything else</dt>
2357: <dd><a href="#parse-error">Parse error</a>. Emit a U+003C LESS-THAN SIGN
2358: character token and reconsume the <a href="#current-input-character">current input
2359: character</a> in the <a href="#data-state">data state</a>.</dd>
1.1 mike 2360:
1.618 mike 2361: </dl><h5 id="close-tag-open-state"><span class="secno">9.2.4.9 </span><dfn>Close tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2362:
1.541 mike 2363: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
1.1 mike 2364:
2365: <dl class="switch"><dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2366: <dd>Create a new end tag token, set its tag name to the lowercase
1.541 mike 2367: version of the <a href="#current-input-character">current input character</a> (add 0x0020 to
2368: the character's code point), then switch to the <a href="#tag-name-state">tag name
1.1 mike 2369: state</a>. (Don't emit the token yet; further details will be
2370: filled in before it is emitted.)</dd>
2371:
2372: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
1.541 mike 2373: <dd>Create a new end tag token, set its tag name to the
2374: <a href="#current-input-character">current input character</a>, then switch to the <a href="#tag-name-state">tag
2375: name state</a>. (Don't emit the token yet; further details will
2376: be filled in before it is emitted.)</dd>
1.1 mike 2377:
2378: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2379: <dd><a href="#parse-error">Parse error</a>. Switch to the <a href="#data-state">data
2380: state</a>.</dd>
2381:
2382: <dt>EOF</dt>
2383: <dd><a href="#parse-error">Parse error</a>. Emit a U+003C LESS-THAN SIGN
2384: character token and a U+002F SOLIDUS character token. Reconsume
2385: the EOF character in the <a href="#data-state">data state</a>.</dd>
2386:
2387: <dt>Anything else</dt>
2388: <dd><a href="#parse-error">Parse error</a>. Switch to the <a href="#bogus-comment-state">bogus
2389: comment state</a>.</dd>
2390:
1.618 mike 2391: </dl><h5 id="tag-name-state"><span class="secno">9.2.4.10 </span><dfn>Tag name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 2392:
2393: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2394:
2395: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2396: <dt>U+000A LINE FEED (LF)</dt>
2397: <dt>U+000C FORM FEED (FF)</dt>
2398: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2399: <dt>U+0020 SPACE</dt>
2400: <dd>Switch to the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
2401:
2402: <dt>U+002F SOLIDUS (/)</dt>
2403: <dd>Switch to the <a href="#self-closing-start-tag-state">self-closing start tag state</a>.</dd>
2404:
2405: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2406: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
2407: state</a>.</dd>
2408:
2409: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
1.541 mike 2410: <dd>Append the lowercase version of the <a href="#current-input-character">current input
2411: character</a> (add 0x0020 to the character's code point) to the
2412: current tag token's tag name. Stay in the <a href="#tag-name-state">tag name
2413: state</a>.</dd>
2414:
2415: <dt>EOF</dt>
2416: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2417: <a href="#data-state">data state</a>.</dd>
2418:
2419: <dt>Anything else</dt>
2420: <dd>Append the <a href="#current-input-character">current input character</a> to the current
2421: tag token's tag name. Stay in the <a href="#tag-name-state">tag name state</a>.</dd>
2422:
1.618 mike 2423: </dl><h5 id="rcdata-less-than-sign-state"><span class="secno">9.2.4.11 </span><dfn>RCDATA less-than sign state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2424: <!-- identical to the RAWTEXT less-than sign state, except s/RAWTEXT/RCDATA/g -->
2425:
2426: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2427:
2428: <dl class="switch"><dt>U+002F SOLIDUS (/)</dt>
2429: <dd>Set the <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Switch
2430: to the <a href="#rcdata-end-tag-open-state">RCDATA end tag open state</a>.</dd>
2431:
2432: <dt>Anything else</dt>
2433: <dd>Emit a U+003C LESS-THAN SIGN character token and reconsume the
2434: <a href="#current-input-character">current input character</a> in the <a href="#rcdata-state">RCDATA
2435: state</a>.</dd>
2436:
1.618 mike 2437: </dl><h5 id="rcdata-end-tag-open-state"><span class="secno">9.2.4.12 </span><dfn>RCDATA end tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2438: <!-- identical to the RAWTEXT (and Script data) end tag open state, except s/RAWTEXT/RCDATA/g -->
2439:
2440: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2441:
2442: <dl class="switch"><dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2443: <dd>Create a new end tag token, and set its tag name to the
2444: lowercase version of the <a href="#current-input-character">current input character</a> (add
2445: 0x0020 to the character's code point). Append the <a href="#current-input-character">current
2446: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2447: switch to the <a href="#rcdata-end-tag-name-state">RCDATA end tag name state</a>. (Don't emit
2448: the token yet; further details will be filled in before it is
2449: emitted.)</dd>
2450:
2451: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2452: <dd>Create a new end tag token, and set its tag name to the
2453: <a href="#current-input-character">current input character</a>. Append the <a href="#current-input-character">current
2454: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2455: switch to the <a href="#rcdata-end-tag-name-state">RCDATA end tag name state</a>. (Don't emit
2456: the token yet; further details will be filled in before it is
2457: emitted.)</dd>
2458:
2459: <dt>Anything else</dt>
2460: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2461: character token, and reconsume the <a href="#current-input-character">current input
2462: character</a> in the <a href="#rcdata-state">RCDATA state</a>.</dd>
2463:
1.618 mike 2464: </dl><h5 id="rcdata-end-tag-name-state"><span class="secno">9.2.4.13 </span><dfn>RCDATA end tag name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2465: <!-- identical to the RAWTEXT (and Script data) end tag name state, except s/RAWTEXT/RCDATA/g -->
2466:
2467: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2468:
2469: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2470: <dt>U+000A LINE FEED (LF)</dt>
2471: <dt>U+000C FORM FEED (FF)</dt>
2472: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2473: <dt>U+0020 SPACE</dt>
2474: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2475: token</a>, then switch to the <a href="#before-attribute-name-state">before attribute name
2476: state</a>. Otherwise, treat it as per the "anything else" entry
2477: below.</dd>
2478:
2479: <dt>U+002F SOLIDUS (/)</dt>
2480: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2481: token</a>, then switch to the <a href="#self-closing-start-tag-state">self-closing start tag
2482: state</a>. Otherwise, treat it as per the "anything else" entry
2483: below.</dd>
2484:
2485: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2486: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2487: token</a>, then emit the current tag token and switch to the
2488: <a href="#data-state">data state</a>. Otherwise, treat it as per the "anything
2489: else" entry below.</dd>
2490:
2491: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2492: <dd>Append the lowercase version of the <a href="#current-input-character">current input
2493: character</a> (add 0x0020 to the character's code point) to the
2494: current tag token's tag name. Append the <a href="#current-input-character">current input
2495: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2496: <a href="#rcdata-end-tag-name-state">RCDATA end tag name state</a>.</dd>
2497:
2498: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2499: <dd>Append the <a href="#current-input-character">current input character</a> to the current
2500: tag token's tag name. Append the <a href="#current-input-character">current input
2501: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2502: <a href="#rcdata-end-tag-name-state">RCDATA end tag name state</a>.</dd>
2503:
2504: <dt>Anything else</dt>
2505: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2506: character token, a character token for each of the characters in
2507: the <var><a href="#temporary-buffer">temporary buffer</a></var> (in the order they were added to
2508: the buffer), and reconsume the <a href="#current-input-character">current input character</a>
2509: in the <a href="#rcdata-state">RCDATA state</a>.</dd>
2510:
1.618 mike 2511: </dl><h5 id="rawtext-less-than-sign-state"><span class="secno">9.2.4.14 </span><dfn>RAWTEXT less-than sign state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2512: <!-- identical to the RCDATA less-than sign state, except s/RCDATA/RAWTEXT/g -->
2513:
2514: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2515:
2516: <dl class="switch"><dt>U+002F SOLIDUS (/)</dt>
2517: <dd>Set the <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Switch
2518: to the <a href="#rawtext-end-tag-open-state">RAWTEXT end tag open state</a>.</dd>
2519:
2520: <dt>Anything else</dt>
2521: <dd>Emit a U+003C LESS-THAN SIGN character token and reconsume the
2522: <a href="#current-input-character">current input character</a> in the <a href="#rawtext-state">RAWTEXT
2523: state</a>.</dd>
2524:
1.618 mike 2525: </dl><h5 id="rawtext-end-tag-open-state"><span class="secno">9.2.4.15 </span><dfn>RAWTEXT end tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2526: <!-- identical to the RCDATA (and Script data) end tag open state, except s/RCDATA/RAWTEXT/g -->
2527:
2528: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2529:
2530: <dl class="switch"><dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2531: <dd>Create a new end tag token, and set its tag name to the
2532: lowercase version of the <a href="#current-input-character">current input character</a> (add
2533: 0x0020 to the character's code point). Append the <a href="#current-input-character">current
2534: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2535: switch to the <a href="#rawtext-end-tag-name-state">RAWTEXT end tag name state</a>. (Don't emit
2536: the token yet; further details will be filled in before it is
2537: emitted.)</dd>
2538:
2539: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2540: <dd>Create a new end tag token, and set its tag name to the
2541: <a href="#current-input-character">current input character</a>. Append the <a href="#current-input-character">current
2542: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2543: switch to the <a href="#rawtext-end-tag-name-state">RAWTEXT end tag name state</a>. (Don't emit
2544: the token yet; further details will be filled in before it is
2545: emitted.)</dd>
2546:
2547: <dt>Anything else</dt>
2548: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2549: character token, and reconsume the <a href="#current-input-character">current input
2550: character</a> in the <a href="#rawtext-state">RAWTEXT state</a>.</dd>
2551:
1.618 mike 2552: </dl><h5 id="rawtext-end-tag-name-state"><span class="secno">9.2.4.16 </span><dfn>RAWTEXT end tag name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2553: <!-- identical to the RCDATA (and Script data) end tag name state, except s/RCDATA/RAWTEXT/g -->
2554:
2555: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2556:
2557: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2558: <dt>U+000A LINE FEED (LF)</dt>
2559: <dt>U+000C FORM FEED (FF)</dt>
2560: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2561: <dt>U+0020 SPACE</dt>
2562: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2563: token</a>, then switch to the <a href="#before-attribute-name-state">before attribute name
2564: state</a>. Otherwise, treat it as per the "anything else" entry
2565: below.</dd>
2566:
2567: <dt>U+002F SOLIDUS (/)</dt>
2568: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2569: token</a>, then switch to the <a href="#self-closing-start-tag-state">self-closing start tag
2570: state</a>. Otherwise, treat it as per the "anything else" entry
2571: below.</dd>
2572:
2573: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2574: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2575: token</a>, then emit the current tag token and switch to the
2576: <a href="#data-state">data state</a>. Otherwise, treat it as per the "anything
2577: else" entry below.</dd>
2578:
2579: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2580: <dd>Append the lowercase version of the <a href="#current-input-character">current input
2581: character</a> (add 0x0020 to the character's code point) to the
2582: current tag token's tag name. Append the <a href="#current-input-character">current input
2583: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2584: <a href="#rawtext-end-tag-name-state">RAWTEXT end tag name state</a>.</dd>
2585:
2586: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2587: <dd>Append the <a href="#current-input-character">current input character</a> to the current
2588: tag token's tag name. Append the <a href="#current-input-character">current input
2589: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2590: <a href="#rawtext-end-tag-name-state">RAWTEXT end tag name state</a>.</dd>
2591:
2592: <dt>Anything else</dt>
2593: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2594: character token, a character token for each of the characters in
2595: the <var><a href="#temporary-buffer">temporary buffer</a></var> (in the order they were added to
2596: the buffer), and reconsume the <a href="#current-input-character">current input character</a>
2597: in the <a href="#rawtext-state">RAWTEXT state</a>.</dd>
2598:
1.618 mike 2599: </dl><h5 id="script-data-less-than-sign-state"><span class="secno">9.2.4.17 </span><dfn>Script data less-than sign state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2600:
2601: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2602:
2603: <dl class="switch"><dt>U+002F SOLIDUS (/)</dt>
2604: <dd>Set the <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Switch
2605: to the <a href="#script-data-end-tag-open-state">script data end tag open state</a>.</dd>
2606:
2607: <dt>U+0021 EXCLAMATION MARK (!)</dt>
2608: <dd>Emit a U+003C LESS-THAN SIGN character token and a U+0021
2609: EXCLAMATION MARK character token. Switch to the <a href="#script-data-escape-start-state">script data
2610: escape start state</a>.</dd>
2611:
2612: <dt>Anything else</dt>
2613: <dd>Emit a U+003C LESS-THAN SIGN character token and reconsume the
2614: <a href="#current-input-character">current input character</a> in the <a href="#script-data-state">script data
2615: state</a>.</dd>
2616:
1.618 mike 2617: </dl><h5 id="script-data-end-tag-open-state"><span class="secno">9.2.4.18 </span><dfn>Script data end tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2618: <!-- identical to the RCDATA (and RAWTEXT) end tag open state, except s/RCDATA/Script data/g -->
2619:
2620: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2621:
2622: <dl class="switch"><dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2623: <dd>Create a new end tag token, and set its tag name to the
2624: lowercase version of the <a href="#current-input-character">current input character</a> (add
2625: 0x0020 to the character's code point). Append the <a href="#current-input-character">current
2626: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2627: switch to the <a href="#script-data-end-tag-name-state">script data end tag name state</a>. (Don't emit
2628: the token yet; further details will be filled in before it is
2629: emitted.)</dd>
2630:
2631: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2632: <dd>Create a new end tag token, and set its tag name to the
2633: <a href="#current-input-character">current input character</a>. Append the <a href="#current-input-character">current
2634: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2635: switch to the <a href="#script-data-end-tag-name-state">script data end tag name state</a>. (Don't emit
2636: the token yet; further details will be filled in before it is
2637: emitted.)</dd>
2638:
2639: <dt>Anything else</dt>
2640: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2641: character token, and reconsume the <a href="#current-input-character">current input
2642: character</a> in the <a href="#script-data-state">script data state</a>.</dd>
2643:
1.618 mike 2644: </dl><h5 id="script-data-end-tag-name-state"><span class="secno">9.2.4.19 </span><dfn>Script data end tag name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2645: <!-- identical to the RCDATA (and RAWTEXT) end tag name state, except s/RCDATA/Script data/g -->
2646:
2647: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2648:
2649: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2650: <dt>U+000A LINE FEED (LF)</dt>
2651: <dt>U+000C FORM FEED (FF)</dt>
2652: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2653: <dt>U+0020 SPACE</dt>
2654: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2655: token</a>, then switch to the <a href="#before-attribute-name-state">before attribute name
2656: state</a>. Otherwise, treat it as per the "anything else" entry
2657: below.</dd>
2658:
2659: <dt>U+002F SOLIDUS (/)</dt>
2660: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2661: token</a>, then switch to the <a href="#self-closing-start-tag-state">self-closing start tag
2662: state</a>. Otherwise, treat it as per the "anything else" entry
2663: below.</dd>
2664:
2665: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2666: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2667: token</a>, then emit the current tag token and switch to the
2668: <a href="#data-state">data state</a>. Otherwise, treat it as per the "anything
2669: else" entry below.</dd>
2670:
2671: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2672: <dd>Append the lowercase version of the <a href="#current-input-character">current input
2673: character</a> (add 0x0020 to the character's code point) to the
2674: current tag token's tag name. Append the <a href="#current-input-character">current input
2675: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
1.542 mike 2676: <a href="#script-data-end-tag-name-state">script data end tag name state</a>.</dd>
1.541 mike 2677:
2678: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2679: <dd>Append the <a href="#current-input-character">current input character</a> to the current
2680: tag token's tag name. Append the <a href="#current-input-character">current input
2681: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
1.542 mike 2682: <a href="#script-data-end-tag-name-state">script data end tag name state</a>.</dd>
1.541 mike 2683:
2684: <dt>Anything else</dt>
2685: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2686: character token, a character token for each of the characters in
2687: the <var><a href="#temporary-buffer">temporary buffer</a></var> (in the order they were added to
2688: the buffer), and reconsume the <a href="#current-input-character">current input character</a>
2689: in the <a href="#script-data-state">script data state</a>.</dd>
2690:
1.618 mike 2691: </dl><h5 id="script-data-escape-start-state"><span class="secno">9.2.4.20 </span><dfn>Script data escape start state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2692:
2693: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2694:
2695: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2696: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2697: <a href="#script-data-escape-start-dash-state">script data escape start dash state</a>.</dd>
2698:
2699: <dt>Anything else</dt>
2700: <dd>Reconsume the <a href="#current-input-character">current input character</a> in the
2701: <a href="#script-data-state">script data state</a>.</dd>
2702:
1.618 mike 2703: </dl><h5 id="script-data-escape-start-dash-state"><span class="secno">9.2.4.21 </span><dfn>Script data escape start dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2704:
2705: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2706:
2707: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2708: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2709: <a href="#script-data-escaped-dash-dash-state">script data escaped dash dash state</a>.</dd>
2710:
2711: <dt>Anything else</dt>
2712: <dd>Reconsume the <a href="#current-input-character">current input character</a> in the
2713: <a href="#script-data-state">script data state</a>.</dd>
2714:
1.618 mike 2715: </dl><h5 id="script-data-escaped-state"><span class="secno">9.2.4.22 </span><dfn>Script data escaped state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2716:
2717: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2718:
2719: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2720: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2721: <a href="#script-data-escaped-dash-state">script data escaped dash state</a>.</dd>
2722:
1.542 mike 2723: <dt>U+003C LESS-THAN SIGN (<)</dt>
2724: <dd><p>Switch to the <a href="#script-data-escaped-less-than-sign-state">script data escaped less-than sign
2725: state</a>.</p></dd>
2726:
1.541 mike 2727: <dt>EOF</dt>
2728: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2729: <a href="#data-state">data state</a>.</dd>
2730:
2731: <dt>Anything else</dt>
1.542 mike 2732: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2733: token. Stay in the <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
1.541 mike 2734:
1.618 mike 2735: </dl><h5 id="script-data-escaped-dash-state"><span class="secno">9.2.4.23 </span><dfn>Script data escaped dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2736:
2737: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2738:
2739: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2740: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2741: <a href="#script-data-escaped-dash-dash-state">script data escaped dash dash state</a>.</dd>
2742:
1.542 mike 2743: <dt>U+003C LESS-THAN SIGN (<)</dt>
2744: <dd><p>Switch to the <a href="#script-data-escaped-less-than-sign-state">script data escaped less-than sign
2745: state</a>.</p></dd>
2746:
1.541 mike 2747: <dt>EOF</dt>
2748: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2749: <a href="#data-state">data state</a>.</dd>
2750:
2751: <dt>Anything else</dt>
1.542 mike 2752: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2753: token. Switch to the <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
1.541 mike 2754:
1.618 mike 2755: </dl><h5 id="script-data-escaped-dash-dash-state"><span class="secno">9.2.4.24 </span><dfn>Script data escaped dash dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.541 mike 2756:
2757: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2758:
2759: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2760: <dd>Emit a U+002D HYPHEN-MINUS character token. Stay in the
2761: <a href="#script-data-escaped-dash-dash-state">script data escaped dash dash state</a>.</dd>
2762:
1.542 mike 2763: <dt>U+003C LESS-THAN SIGN (<)</dt>
2764: <dd><p>Switch to the <a href="#script-data-escaped-less-than-sign-state">script data escaped less-than sign
2765: state</a>.</p></dd>
2766:
1.541 mike 2767: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2768: <dd>Emit a U+003E GREATER-THAN SIGN character token. Switch to the
2769: <a href="#script-data-state">script data state</a>.</dd>
1.1 mike 2770:
2771: <dt>EOF</dt>
2772: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2773: <a href="#data-state">data state</a>.</dd>
2774:
2775: <dt>Anything else</dt>
1.542 mike 2776: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2777: token. Switch to the <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
2778:
1.618 mike 2779: </dl><h5 id="script-data-escaped-less-than-sign-state"><span class="secno">9.2.4.25 </span><dfn>Script data escaped less-than sign state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2780:
2781: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2782:
2783: <dl class="switch"><dt>U+002F SOLIDUS (/)</dt>
2784: <dd>Set the <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Switch
2785: to the <a href="#script-data-escaped-end-tag-open-state">script data escaped end tag open state</a>.</dd>
2786:
2787: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2788: <dd>Emit a U+003C LESS-THAN SIGN character token and the
2789: <a href="#current-input-character">current input character</a> as a character token. Set the
2790: <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Append the
2791: lowercase version of the <a href="#current-input-character">current input character</a> (add
2792: 0x0020 to the character's code point) to the <var><a href="#temporary-buffer">temporary
2793: buffer</a></var>. Switch to the <a href="#script-data-double-escape-start-state">script data double escape start
2794: state</a>.</dd>
2795:
2796: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2797: <dd>Emit a U+003C LESS-THAN SIGN character token and the
2798: <a href="#current-input-character">current input character</a> as a character token. Set the
2799: <var><a href="#temporary-buffer">temporary buffer</a></var> to the empty string. Append the
2800: <a href="#current-input-character">current input character</a> to the <var><a href="#temporary-buffer">temporary
2801: buffer</a></var>. Switch to the <a href="#script-data-double-escape-start-state">script data double escape start
2802: state</a>.</dd>
2803:
2804: <dt>Anything else</dt>
2805: <dd>Emit a U+003C LESS-THAN SIGN character token and reconsume the
2806: <a href="#current-input-character">current input character</a> in the <a href="#script-data-escaped-state">script data
2807: escaped state</a>.</dd>
2808:
1.618 mike 2809: </dl><h5 id="script-data-escaped-end-tag-open-state"><span class="secno">9.2.4.26 </span><dfn>Script data escaped end tag open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2810:
2811: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2812:
2813: <dl class="switch"><dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2814: <dd>Create a new end tag token, and set its tag name to the
2815: lowercase version of the <a href="#current-input-character">current input character</a> (add
2816: 0x0020 to the character's code point). Append the <a href="#current-input-character">current
2817: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2818: switch to the <a href="#script-data-escaped-end-tag-name-state">script data escaped end tag name
2819: state</a>. (Don't emit the token yet; further details will be
2820: filled in before it is emitted.)</dd>
2821:
2822: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2823: <dd>Create a new end tag token, and set its tag name to the
2824: <a href="#current-input-character">current input character</a>. Append the <a href="#current-input-character">current
2825: input character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Finally,
2826: switch to the <a href="#script-data-escaped-end-tag-name-state">script data escaped end tag name
2827: state</a>. (Don't emit the token yet; further details will be
2828: filled in before it is emitted.)</dd>
2829:
2830: <dt>Anything else</dt>
2831: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2832: character token, and reconsume the <a href="#current-input-character">current input
2833: character</a> in the <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
2834:
1.618 mike 2835: </dl><h5 id="script-data-escaped-end-tag-name-state"><span class="secno">9.2.4.27 </span><dfn>Script data escaped end tag name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2836:
2837: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2838:
2839: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2840: <dt>U+000A LINE FEED (LF)</dt>
2841: <dt>U+000C FORM FEED (FF)</dt>
2842: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2843: <dt>U+0020 SPACE</dt>
2844: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2845: token</a>, then switch to the <a href="#before-attribute-name-state">before attribute name
2846: state</a>. Otherwise, treat it as per the "anything else" entry
2847: below.</dd>
2848:
2849: <dt>U+002F SOLIDUS (/)</dt>
2850: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2851: token</a>, then switch to the <a href="#self-closing-start-tag-state">self-closing start tag
2852: state</a>. Otherwise, treat it as per the "anything else" entry
2853: below.</dd>
2854:
2855: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2856: <dd>If the current end tag token is an <a href="#appropriate-end-tag-token">appropriate end tag
2857: token</a>, then emit the current tag token and switch to the
2858: <a href="#data-state">data state</a>. Otherwise, treat it as per the "anything
2859: else" entry below.</dd>
2860:
2861: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2862: <dd>Append the lowercase version of the <a href="#current-input-character">current input
2863: character</a> (add 0x0020 to the character's code point) to the
2864: current tag token's tag name. Append the <a href="#current-input-character">current input
2865: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2866: <a href="#script-data-escaped-end-tag-name-state">script data escaped end tag name state</a>.</dd>
2867:
2868: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2869: <dd>Append the <a href="#current-input-character">current input character</a> to the current
2870: tag token's tag name. Append the <a href="#current-input-character">current input
2871: character</a> to the <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the
2872: <a href="#script-data-escaped-end-tag-name-state">script data escaped end tag name state</a>.</dd>
2873:
2874: <dt>Anything else</dt>
2875: <dd>Emit a U+003C LESS-THAN SIGN character token, a U+002F SOLIDUS
2876: character token, a character token for each of the characters in
2877: the <var><a href="#temporary-buffer">temporary buffer</a></var> (in the order they were added to
2878: the buffer), and reconsume the <a href="#current-input-character">current input character</a>
2879: in the <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
2880:
1.618 mike 2881: </dl><h5 id="script-data-double-escape-start-state"><span class="secno">9.2.4.28 </span><dfn>Script data double escape start state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2882:
2883: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2884:
2885: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
2886: <dt>U+000A LINE FEED (LF)</dt>
2887: <dt>U+000C FORM FEED (FF)</dt>
2888: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
2889: <dt>U+0020 SPACE</dt>
2890: <dt>U+002F SOLIDUS (/)</dt>
2891: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2892: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2893: token. If the <var><a href="#temporary-buffer">temporary buffer</a></var> is the string "<code title="">script</code>", then switch to the <a href="#script-data-double-escaped-state">script data
2894: double escaped state</a>. Otherwise, switch to the <a href="#script-data-escaped-state">script
2895: data escaped state</a>.</dd>
2896:
2897: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
2898: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2899: token. Append the lowercase version of the <a href="#current-input-character">current input
2900: character</a> (add 0x0020 to the character's code point) to the
2901: <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the <a href="#script-data-double-escape-start-state">script data double
2902: escape start state</a>.</dd>
2903:
2904: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
2905: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2906: token. Append the <a href="#current-input-character">current input character</a> to the
2907: <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the <a href="#script-data-double-escape-start-state">script data double
2908: escape start state</a>.</dd>
2909:
2910: <dt>Anything else</dt>
2911: <dd>Reconsume the <a href="#current-input-character">current input character</a> in the
2912: <a href="#script-data-escaped-state">script data escaped state</a>.</dd>
2913:
1.618 mike 2914: </dl><h5 id="script-data-double-escaped-state"><span class="secno">9.2.4.29 </span><dfn>Script data double escaped state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2915:
2916: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2917:
2918: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2919: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2920: <a href="#script-data-double-escaped-dash-state">script data double escaped dash state</a>.</dd>
2921:
2922: <dt>U+003C LESS-THAN SIGN (<)</dt>
2923: <dd><p>Emit a U+003C LESS-THAN SIGN character token. Switch to the
2924: <a href="#script-data-double-escaped-less-than-sign-state">script data double escaped less-than sign
2925: state</a>.</p></dd>
2926:
2927: <dt>EOF</dt>
2928: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2929: <a href="#data-state">data state</a>.</dd>
2930:
2931: <dt>Anything else</dt>
2932: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2933: token. Stay in the <a href="#script-data-double-escaped-state">script data double escaped
2934: state</a>.</dd>
2935:
1.618 mike 2936: </dl><h5 id="script-data-double-escaped-dash-state"><span class="secno">9.2.4.30 </span><dfn>Script data double escaped dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2937:
2938: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2939:
2940: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2941: <dd>Emit a U+002D HYPHEN-MINUS character token. Switch to the
2942: <a href="#script-data-double-escaped-dash-dash-state">script data double escaped dash dash state</a>.</dd>
2943:
2944: <dt>U+003C LESS-THAN SIGN (<)</dt>
2945: <dd><p>Emit a U+003C LESS-THAN SIGN character token. Switch to the
2946: <a href="#script-data-double-escaped-less-than-sign-state">script data double escaped less-than sign
2947: state</a>.</p></dd>
2948:
2949: <dt>EOF</dt>
2950: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2951: <a href="#data-state">data state</a>.</dd>
2952:
2953: <dt>Anything else</dt>
2954: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2955: token. Switch to the <a href="#script-data-double-escaped-state">script data double escaped
2956: state</a>.</dd>
2957:
1.618 mike 2958: </dl><h5 id="script-data-double-escaped-dash-dash-state"><span class="secno">9.2.4.31 </span><dfn>Script data double escaped dash dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2959:
2960: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2961:
2962: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
2963: <dd>Emit a U+002D HYPHEN-MINUS character token. Stay in the
2964: <a href="#script-data-double-escaped-dash-dash-state">script data double escaped dash dash state</a>.</dd>
2965:
2966: <dt>U+003C LESS-THAN SIGN (<)</dt>
2967: <dd><p>Emit a U+003C LESS-THAN SIGN character token. Switch to the
2968: <a href="#script-data-double-escaped-less-than-sign-state">script data double escaped less-than sign
2969: state</a>.</p></dd>
2970:
2971: <dt>U+003E GREATER-THAN SIGN (>)</dt>
2972: <dd>Emit a U+003E GREATER-THAN SIGN character token. Switch to the
2973: <a href="#script-data-state">script data state</a>.</dd>
2974:
2975: <dt>EOF</dt>
2976: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
2977: <a href="#data-state">data state</a>.</dd>
2978:
2979: <dt>Anything else</dt>
2980: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
2981: token. Switch to the <a href="#script-data-double-escaped-state">script data double escaped
2982: state</a>.</dd>
2983:
1.618 mike 2984: </dl><h5 id="script-data-double-escaped-less-than-sign-state"><span class="secno">9.2.4.32 </span><dfn>Script data double escaped less-than sign state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2985:
2986: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
2987:
2988: <dl class="switch"><dt>U+002F SOLIDUS (/)</dt>
2989: <dd>Emit a U+002F SOLIDUS character token. Set the <var><a href="#temporary-buffer">temporary
2990: buffer</a></var> to the empty string. Switch to the <a href="#script-data-double-escape-end-state">script data
2991: double escape end state</a>.</dd>
2992:
2993: <dt>Anything else</dt>
2994: <dd>Reconsume the <a href="#current-input-character">current input character</a> in the
2995: <a href="#script-data-double-escaped-state">script data double escaped state</a>.</dd>
2996:
1.618 mike 2997: </dl><h5 id="script-data-double-escape-end-state"><span class="secno">9.2.4.33 </span><dfn>Script data double escape end state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.542 mike 2998:
2999: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3000:
3001: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3002: <dt>U+000A LINE FEED (LF)</dt>
3003: <dt>U+000C FORM FEED (FF)</dt>
3004: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3005: <dt>U+0020 SPACE</dt>
3006: <dt>U+002F SOLIDUS (/)</dt>
3007: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3008: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
3009: token. If the <var><a href="#temporary-buffer">temporary buffer</a></var> is the string "<code title="">script</code>", then switch to the <a href="#script-data-escaped-state">script data
3010: escaped state</a>. Otherwise, switch to the <a href="#script-data-double-escaped-state">script data
3011: double escaped state</a>.</dd>
3012:
3013: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
3014: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
3015: token. Append the lowercase version of the <a href="#current-input-character">current input
3016: character</a> (add 0x0020 to the character's code point) to the
3017: <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the <a href="#script-data-double-escape-end-state">script data double
3018: escape end state</a>.</dd>
3019:
3020: <dt>U+0061 LATIN SMALL LETTER A through to U+007A LATIN SMALL LETTER Z</dt>
3021: <dd>Emit the <a href="#current-input-character">current input character</a> as a character
3022: token. Append the <a href="#current-input-character">current input character</a> to the
3023: <var><a href="#temporary-buffer">temporary buffer</a></var>. Stay in the <a href="#script-data-double-escape-end-state">script data double
3024: escape end state</a>.</dd>
3025:
3026: <dt>Anything else</dt>
3027: <dd>Reconsume the <a href="#current-input-character">current input character</a> in the
3028: <a href="#script-data-double-escaped-state">script data double escaped state</a>.</dd>
1.1 mike 3029:
1.618 mike 3030: </dl><h5 id="before-attribute-name-state"><span class="secno">9.2.4.34 </span><dfn>Before attribute name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3031:
3032: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3033:
3034: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3035: <dt>U+000A LINE FEED (LF)</dt>
3036: <dt>U+000C FORM FEED (FF)</dt>
3037: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3038: <dt>U+0020 SPACE</dt>
3039: <dd>Stay in the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
3040:
3041: <dt>U+002F SOLIDUS (/)</dt>
3042: <dd>Switch to the <a href="#self-closing-start-tag-state">self-closing start tag state</a>.</dd>
3043:
3044: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3045: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
3046: state</a>.</dd>
3047:
3048: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
3049: <dd>Start a new attribute in the current tag token. Set that
3050: attribute's name to the lowercase version of the <a href="#current-input-character">current input
3051: character</a> (add 0x0020 to the character's code point), and its
3052: value to the empty string. Switch to the <a href="#attribute-name-state">attribute name
3053: state</a>.</dd>
3054:
3055: <dt>U+0022 QUOTATION MARK (")</dt>
3056: <dt>U+0027 APOSTROPHE (')</dt>
3057: <dt>U+003C LESS-THAN SIGN (<)</dt>
3058: <dt>U+003D EQUALS SIGN (=)</dt>
3059: <dd><a href="#parse-error">Parse error</a>. Treat it as per the "anything else"
3060: entry below.</dd>
3061:
3062: <dt>EOF</dt>
3063: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3064: <a href="#data-state">data state</a>.</dd>
3065:
3066: <dt>Anything else</dt>
3067: <dd>Start a new attribute in the current tag token. Set that
3068: attribute's name to the <a href="#current-input-character">current input character</a>, and its value to
3069: the empty string. Switch to the <a href="#attribute-name-state">attribute name
3070: state</a>.</dd>
3071:
1.618 mike 3072: </dl><h5 id="attribute-name-state"><span class="secno">9.2.4.35 </span><dfn>Attribute name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3073:
3074: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3075:
3076: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3077: <dt>U+000A LINE FEED (LF)</dt>
3078: <dt>U+000C FORM FEED (FF)</dt>
3079: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3080: <dt>U+0020 SPACE</dt>
3081: <dd>Switch to the <a href="#after-attribute-name-state">after attribute name state</a>.</dd>
3082:
3083: <dt>U+002F SOLIDUS (/)</dt>
3084: <dd>Switch to the <a href="#self-closing-start-tag-state">self-closing start tag state</a>.</dd>
3085:
3086: <dt>U+003D EQUALS SIGN (=)</dt>
3087: <dd>Switch to the <a href="#before-attribute-value-state">before attribute value state</a>.</dd>
3088:
3089: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3090: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
3091: state</a>.</dd>
3092:
3093: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
1.541 mike 3094: <dd>Append the lowercase version of the <a href="#current-input-character">current input
3095: character</a> (add 0x0020 to the character's code point) to the
3096: current attribute's name. Stay in the <a href="#attribute-name-state">attribute name
1.1 mike 3097: state</a>.</dd>
3098:
3099: <dt>U+0022 QUOTATION MARK (")</dt>
3100: <dt>U+0027 APOSTROPHE (')</dt>
3101: <dt>U+003C LESS-THAN SIGN (<)</dt>
3102: <dd><a href="#parse-error">Parse error</a>. Treat it as per the "anything else"
3103: entry below.</dd>
3104:
3105: <dt>EOF</dt>
3106: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3107: <a href="#data-state">data state</a>.</dd>
3108:
3109: <dt>Anything else</dt>
1.541 mike 3110: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3111: attribute's name. Stay in the <a href="#attribute-name-state">attribute name
3112: state</a>.</dd>
1.1 mike 3113:
3114: </dl><p>When the user agent leaves the attribute name state (and before
3115: emitting the tag token, if appropriate), the complete attribute's
3116: name must be compared to the other attributes on the same token;
3117: if there is already an attribute on the token with the exact same
3118: name, then this is a <a href="#parse-error">parse error</a> and the new
3119: attribute must be dropped, along with the value that gets
3120: associated with it (if any).</p>
3121:
3122:
1.618 mike 3123: <h5 id="after-attribute-name-state"><span class="secno">9.2.4.36 </span><dfn>After attribute name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3124:
3125: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3126:
3127: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3128: <dt>U+000A LINE FEED (LF)</dt>
3129: <dt>U+000C FORM FEED (FF)</dt>
3130: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3131: <dt>U+0020 SPACE</dt>
3132: <dd>Stay in the <a href="#after-attribute-name-state">after attribute name state</a>.</dd>
3133:
3134: <dt>U+002F SOLIDUS (/)</dt>
3135: <dd>Switch to the <a href="#self-closing-start-tag-state">self-closing start tag state</a>.</dd>
3136:
3137: <dt>U+003D EQUALS SIGN (=)</dt>
3138: <dd>Switch to the <a href="#before-attribute-value-state">before attribute value state</a>.</dd>
3139:
3140: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3141: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
3142: state</a>.</dd>
3143:
3144: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
3145: <dd>Start a new attribute in the current tag token. Set that
1.541 mike 3146: attribute's name to the lowercase version of the <a href="#current-input-character">current
3147: input character</a> (add 0x0020 to the character's code point),
3148: and its value to the empty string. Switch to the <a href="#attribute-name-state">attribute
3149: name state</a>.</dd>
1.1 mike 3150:
3151: <dt>U+0022 QUOTATION MARK (")</dt>
3152: <dt>U+0027 APOSTROPHE (')</dt>
3153: <dt>U+003C LESS-THAN SIGN (<)</dt>
3154: <dd><a href="#parse-error">Parse error</a>. Treat it as per the "anything else"
3155: entry below.</dd>
3156:
3157: <dt>EOF</dt>
3158: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3159: <a href="#data-state">data state</a>.</dd>
3160:
3161: <dt>Anything else</dt>
3162: <dd>Start a new attribute in the current tag token. Set that
1.541 mike 3163: attribute's name to the <a href="#current-input-character">current input character</a>, and
3164: its value to the empty string. Switch to the <a href="#attribute-name-state">attribute name
1.1 mike 3165: state</a>.</dd>
3166:
1.618 mike 3167: </dl><h5 id="before-attribute-value-state"><span class="secno">9.2.4.37 </span><dfn>Before attribute value state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3168:
3169: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3170:
3171: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3172: <dt>U+000A LINE FEED (LF)</dt>
3173: <dt>U+000C FORM FEED (FF)</dt>
3174: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3175: <dt>U+0020 SPACE</dt>
3176: <dd>Stay in the <a href="#before-attribute-value-state">before attribute value state</a>.</dd>
3177:
3178: <dt>U+0022 QUOTATION MARK (")</dt>
3179: <dd>Switch to the <a href="#attribute-value-double-quoted-state">attribute value (double-quoted) state</a>.</dd>
3180:
3181: <dt>U+0026 AMPERSAND (&)</dt>
3182: <dd>Switch to the <a href="#attribute-value-unquoted-state">attribute value (unquoted) state</a>
1.541 mike 3183: and reconsume this <a href="#current-input-character">current input character</a>.</dd>
1.1 mike 3184:
3185: <dt>U+0027 APOSTROPHE (')</dt>
3186: <dd>Switch to the <a href="#attribute-value-single-quoted-state">attribute value (single-quoted) state</a>.</dd>
3187:
3188: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3189: <dd><a href="#parse-error">Parse error</a>. Emit the current tag token. Switch to
3190: the <a href="#data-state">data state</a>.</dd>
3191:
3192: <dt>U+003C LESS-THAN SIGN (<)</dt>
3193: <dt>U+003D EQUALS SIGN (=)</dt>
1.463 mike 3194: <dt>U+0060 GRAVE ACCENT (`)</dt>
1.1 mike 3195: <dd><a href="#parse-error">Parse error</a>. Treat it as per the "anything else"
3196: entry below.</dd>
3197:
3198: <dt>EOF</dt>
3199: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3200: <a href="#data-state">data state</a>.</dd>
3201:
3202: <dt>Anything else</dt>
3203: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3204: attribute's value. Switch to the <a href="#attribute-value-unquoted-state">attribute value (unquoted)
3205: state</a>.</dd>
3206:
1.618 mike 3207: </dl><h5 id="attribute-value-double-quoted-state"><span class="secno">9.2.4.38 </span><dfn>Attribute value (double-quoted) state</dfn></h5>
1.1 mike 3208:
3209: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3210:
3211: <dl class="switch"><dt>U+0022 QUOTATION MARK (")</dt>
3212: <dd>Switch to the <a href="#after-attribute-value-quoted-state">after attribute value (quoted)
3213: state</a>.</dd>
3214:
3215: <dt>U+0026 AMPERSAND (&)</dt>
3216: <dd>Switch to the <a href="#character-reference-in-attribute-value-state">character reference in attribute value
3217: state</a>, with the <a href="#additional-allowed-character">additional allowed character</a>
3218: being U+0022 QUOTATION MARK (").</dd>
3219:
3220: <dt>EOF</dt>
3221: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3222: <a href="#data-state">data state</a>.</dd>
3223:
3224: <dt>Anything else</dt>
1.541 mike 3225: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3226: attribute's value. Stay in the <a href="#attribute-value-double-quoted-state">attribute value
3227: (double-quoted) state</a>.</dd>
1.1 mike 3228:
1.618 mike 3229: </dl><h5 id="attribute-value-single-quoted-state"><span class="secno">9.2.4.39 </span><dfn>Attribute value (single-quoted) state</dfn></h5>
1.1 mike 3230:
3231: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3232:
3233: <dl class="switch"><dt>U+0027 APOSTROPHE (')</dt>
3234: <dd>Switch to the <a href="#after-attribute-value-quoted-state">after attribute value (quoted)
3235: state</a>.</dd>
3236:
3237: <dt>U+0026 AMPERSAND (&)</dt>
3238: <dd>Switch to the <a href="#character-reference-in-attribute-value-state">character reference in attribute value
3239: state</a>, with the <a href="#additional-allowed-character">additional allowed character</a>
3240: being U+0027 APOSTROPHE (').</dd>
3241:
3242: <dt>EOF</dt>
3243: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3244: <a href="#data-state">data state</a>.</dd>
3245:
3246: <dt>Anything else</dt>
1.541 mike 3247: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3248: attribute's value. Stay in the <a href="#attribute-value-single-quoted-state">attribute value
3249: (single-quoted) state</a>.</dd>
1.1 mike 3250:
1.618 mike 3251: </dl><h5 id="attribute-value-unquoted-state"><span class="secno">9.2.4.40 </span><dfn>Attribute value (unquoted) state</dfn></h5>
1.1 mike 3252:
3253: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3254:
3255: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3256: <dt>U+000A LINE FEED (LF)</dt>
3257: <dt>U+000C FORM FEED (FF)</dt>
3258: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3259: <dt>U+0020 SPACE</dt>
3260: <dd>Switch to the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
3261:
3262: <dt>U+0026 AMPERSAND (&)</dt>
3263: <dd>Switch to the <a href="#character-reference-in-attribute-value-state">character reference in attribute value
1.299 mike 3264: state</a>, with the <a href="#additional-allowed-character">additional allowed character</a>
3265: being U+003E GREATER-THAN SIGN (>).</dd>
1.1 mike 3266:
3267: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3268: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
3269: state</a>.</dd>
3270:
3271: <dt>U+0022 QUOTATION MARK (")</dt>
3272: <dt>U+0027 APOSTROPHE (')</dt>
3273: <dt>U+003C LESS-THAN SIGN (<)</dt>
3274: <dt>U+003D EQUALS SIGN (=)</dt>
1.463 mike 3275: <dt>U+0060 GRAVE ACCENT (`)</dt>
1.1 mike 3276: <dd><a href="#parse-error">Parse error</a>. Treat it as per the "anything else"
3277: entry below.</dd>
3278:
3279: <dt>EOF</dt>
3280: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3281: <a href="#data-state">data state</a>.</dd>
3282:
3283: <dt>Anything else</dt>
1.541 mike 3284: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3285: attribute's value. Stay in the <a href="#attribute-value-unquoted-state">attribute value (unquoted)
1.1 mike 3286: state</a>.</dd>
3287:
1.618 mike 3288: </dl><h5 id="character-reference-in-attribute-value-state"><span class="secno">9.2.4.41 </span><dfn>Character reference in attribute value state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3289:
3290: <p>Attempt to <a href="#consume-a-character-reference">consume a character reference</a>.</p>
3291:
3292: <p>If nothing is returned, append a U+0026 AMPERSAND character to
3293: the current attribute's value.</p>
3294:
3295: <p>Otherwise, append the returned character token to the current
3296: attribute's value.</p>
3297:
3298: <p>Finally, switch back to the attribute value state that you were
3299: in when were switched into this state.</p>
3300:
3301:
1.618 mike 3302: <h5 id="after-attribute-value-quoted-state"><span class="secno">9.2.4.42 </span><dfn>After attribute value (quoted) state</dfn></h5>
1.1 mike 3303:
3304: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3305:
3306: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3307: <dt>U+000A LINE FEED (LF)</dt>
3308: <dt>U+000C FORM FEED (FF)</dt>
3309: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3310: <dt>U+0020 SPACE</dt>
3311: <dd>Switch to the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
3312:
3313: <dt>U+002F SOLIDUS (/)</dt>
3314: <dd>Switch to the <a href="#self-closing-start-tag-state">self-closing start tag state</a>.</dd>
3315:
3316: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3317: <dd>Emit the current tag token. Switch to the <a href="#data-state">data
3318: state</a>.</dd>
3319:
3320: <dt>EOF</dt>
3321: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3322: <a href="#data-state">data state</a>.</dd>
3323:
3324: <dt>Anything else</dt>
3325: <dd><a href="#parse-error">Parse error</a>. Reconsume the character in
3326: the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
3327:
1.618 mike 3328: </dl><h5 id="self-closing-start-tag-state"><span class="secno">9.2.4.43 </span><dfn>Self-closing start tag state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3329:
3330: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3331:
3332: <dl class="switch"><dt>U+003E GREATER-THAN SIGN (>)</dt>
3333: <dd>Set the <i>self-closing flag</i> of the current tag
3334: token. Emit the current tag token. Switch to the <a href="#data-state">data
3335: state</a>.</dd>
3336:
3337: <dt>EOF</dt>
3338: <dd><a href="#parse-error">Parse error</a>. Reconsume the EOF character in the
3339: <a href="#data-state">data state</a>.</dd>
3340:
3341: <dt>Anything else</dt>
3342: <dd><a href="#parse-error">Parse error</a>. Reconsume the character in
3343: the <a href="#before-attribute-name-state">before attribute name state</a>.</dd>
3344:
1.618 mike 3345: </dl><h5 id="bogus-comment-state"><span class="secno">9.2.4.44 </span><dfn>Bogus comment state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3346:
3347: <p>Consume every character up to and including the first U+003E
3348: GREATER-THAN SIGN character (>) or the end of the file (EOF),
3349: whichever comes first. Emit a comment token whose data is the
3350: concatenation of all the characters starting from and including
3351: the character that caused the state machine to switch into the
3352: bogus comment state, up to and including the character immediately
3353: before the last consumed character (i.e. up to the character just
3354: before the U+003E or EOF character). (If the comment was started
3355: by the end of the file (EOF), the token is empty.)</p>
3356:
3357: <p>Switch to the <a href="#data-state">data state</a>.</p>
3358:
3359: <p>If the end of the file was reached, reconsume the EOF
3360: character.</p>
3361:
3362:
1.618 mike 3363: <h5 id="markup-declaration-open-state"><span class="secno">9.2.4.45 </span><dfn>Markup declaration open state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3364:
1.588 mike 3365: <p>If the next two characters are both U+002D HYPHEN-MINUS
3366: characters (-), consume those two characters, create a comment token
1.1 mike 3367: whose data is the empty string, and switch to the <a href="#comment-start-state">comment
3368: start state</a>.</p>
3369:
3370: <p>Otherwise, if the next seven characters are an <a href="infrastructure.html#ascii-case-insensitive">ASCII
3371: case-insensitive</a> match for the word "DOCTYPE", then consume
3372: those characters and switch to the <a href="#doctype-state">DOCTYPE state</a>.</p>
3373:
3374: <p>Otherwise, if the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inforeign" title="insertion mode: in foreign content">in foreign
3375: content</a>" and the <a href="#current-node">current node</a> is not an element
3376: in the <a href="#html-namespace-0">HTML namespace</a> and the next seven characters are
1.585 mike 3377: an <a href="infrastructure.html#case-sensitive">case-sensitive</a> match for the string "[CDATA[" (the
3378: five uppercase letters "CDATA" with a U+005B LEFT SQUARE BRACKET
3379: character before and after), then consume those characters and
3380: switch to the <a href="#cdata-section-state">CDATA section state</a>.</p>
1.1 mike 3381:
3382: <p>Otherwise, this is a <a href="#parse-error">parse error</a>. Switch to the
3383: <a href="#bogus-comment-state">bogus comment state</a>. The next character that is
3384: consumed, if any, is the first character that will be in the
3385: comment.</p>
3386:
3387:
1.618 mike 3388: <h5 id="comment-start-state"><span class="secno">9.2.4.46 </span><dfn>Comment start state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3389:
3390: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3391:
3392: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
3393: <dd>Switch to the <a href="#comment-start-dash-state">comment start dash state</a>.</dd>
3394:
3395: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3396: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Switch to the
3397: <a href="#data-state">data state</a>.</dd> <!-- see comment in comment end state
3398: -->
3399:
3400: <dt>EOF</dt>
3401: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume
3402: the EOF character in the <a href="#data-state">data state</a>.</dd>
3403:
3404: <dt>Anything else</dt>
1.541 mike 3405: <dd>Append the <a href="#current-input-character">current input character</a> to the comment
3406: token's data. Switch to the <a href="#comment-state">comment state</a>.</dd>
1.1 mike 3407:
1.618 mike 3408: </dl><h5 id="comment-start-dash-state"><span class="secno">9.2.4.47 </span><dfn>Comment start dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3409:
3410: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3411:
3412: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
3413: <dd>Switch to the <a href="#comment-end-state">comment end state</a></dd>
3414:
3415: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3416: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Switch to
3417: the <a href="#data-state">data state</a>.</dd>
3418:
3419: <dt>EOF</dt>
3420: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume the
3421: EOF character in the <a href="#data-state">data state</a>.</dd> <!-- see comment
3422: in comment end state -->
3423:
3424: <dt>Anything else</dt>
1.541 mike 3425: <dd>Append a U+002D HYPHEN-MINUS character (-) and the
3426: <a href="#current-input-character">current input character</a> to the comment token's
3427: data. Switch to the <a href="#comment-state">comment state</a>.</dd>
1.1 mike 3428:
1.618 mike 3429: </dl><h5 id="comment-state"><span class="secno">9.2.4.48 </span><dfn id="comment">Comment state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3430:
3431: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3432:
3433: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
3434: <dd>Switch to the <a href="#comment-end-dash-state">comment end dash state</a></dd>
3435:
3436: <dt>EOF</dt>
3437: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume the
3438: EOF character in the <a href="#data-state">data state</a>.</dd> <!-- see comment
3439: in comment end state -->
3440:
3441: <dt>Anything else</dt>
1.541 mike 3442: <dd>Append the <a href="#current-input-character">current input character</a> to the comment
3443: token's data. Stay in the <a href="#comment-state">comment state</a>.</dd>
1.1 mike 3444:
1.618 mike 3445: </dl><h5 id="comment-end-dash-state"><span class="secno">9.2.4.49 </span><dfn>Comment end dash state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3446:
3447: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3448:
3449: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
3450: <dd>Switch to the <a href="#comment-end-state">comment end state</a></dd>
3451:
3452: <dt>EOF</dt>
3453: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume the
3454: EOF character in the <a href="#data-state">data state</a>.</dd> <!-- see comment
3455: in comment end state -->
3456:
3457: <dt>Anything else</dt>
1.541 mike 3458: <dd>Append a U+002D HYPHEN-MINUS character (-) and the
3459: <a href="#current-input-character">current input character</a> to the comment token's
3460: data. Switch to the <a href="#comment-state">comment state</a>.</dd>
1.1 mike 3461:
1.618 mike 3462: </dl><h5 id="comment-end-state"><span class="secno">9.2.4.50 </span><dfn>Comment end state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3463:
3464: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3465:
3466: <dl class="switch"><dt>U+003E GREATER-THAN SIGN (>)</dt>
3467: <dd>Emit the comment token. Switch to the <a href="#data-state">data
3468: state</a>.</dd>
3469:
3470: <dt>U+0009 CHARACTER TABULATION</dt>
3471: <dt>U+000A LINE FEED (LF)</dt>
3472: <dt>U+000C FORM FEED (FF)</dt>
3473: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3474: <dt>U+0020 SPACE</dt>
1.588 mike 3475: <dd><a href="#parse-error">Parse error</a>. Append two U+002D HYPHEN-MINUS
3476: characters (-) and the <a href="#current-input-character">current input character</a> to the
1.541 mike 3477: comment token's data. Switch to the <a href="#comment-end-space-state">comment end space
3478: state</a>.</dd>
1.1 mike 3479:
3480: <dt>U+0021 EXCLAMATION MARK (!)</dt>
3481: <dd><a href="#parse-error">Parse error</a>. Switch to the <a href="#comment-end-bang-state">comment end bang
3482: state</a>.</dd>
3483:
1.333 mike 3484: <dt>U+002D HYPHEN-MINUS (-)</dt>
3485: <dd><a href="#parse-error">Parse error</a>. Append a U+002D HYPHEN-MINUS
1.464 mike 3486: character (-) to the comment token's data. Stay in the
1.333 mike 3487: <a href="#comment-end-state">comment end state</a>.</dd>
3488:
1.1 mike 3489: <dt>EOF</dt>
3490: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume
3491: the EOF character in the <a href="#data-state">data state</a>.</dd> <!-- For
3492: security reasons: otherwise, hostile user could put a <script> in
3493: a comment e.g. in a blog comment and then DOS the server so that
3494: the end tag isn't read, and then the commented <script> tag would
3495: be treated as live code -->
3496:
3497: <dt>Anything else</dt>
1.588 mike 3498: <dd><a href="#parse-error">Parse error</a>. Append two U+002D HYPHEN-MINUS
3499: characters (-) and the <a href="#current-input-character">current input character</a> to the
1.541 mike 3500: comment token's data. Switch to the <a href="#comment-state">comment
3501: state</a>.</dd>
1.1 mike 3502:
1.618 mike 3503: </dl><h5 id="comment-end-bang-state"><span class="secno">9.2.4.51 </span><dfn>Comment end bang state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3504:
3505: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3506:
1.333 mike 3507: <dl class="switch"><dt>U+002D HYPHEN-MINUS (-)</dt>
1.588 mike 3508: <dd>Append two U+002D HYPHEN-MINUS characters (-) and a U+0021
1.464 mike 3509: EXCLAMATION MARK character (!) to the comment token's data. Switch
1.1 mike 3510: to the <a href="#comment-end-dash-state">comment end dash state</a>.</dd>
3511:
1.333 mike 3512: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3513: <dd>Emit the comment token. Switch to the <a href="#data-state">data
3514: state</a>.</dd>
3515:
1.1 mike 3516: <dt>EOF</dt>
3517: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume
3518: the EOF character in the <a href="#data-state">data state</a>.</dd> <!-- see
3519: comment in comment end state -->
3520:
3521: <dt>Anything else</dt>
1.588 mike 3522: <dd>Append two U+002D HYPHEN-MINUS characters (-), a U+0021
1.541 mike 3523: EXCLAMATION MARK character (!), and the <a href="#current-input-character">current input
3524: character</a> to the comment token's data. Switch to the
3525: <a href="#comment-state">comment state</a>.</dd>
1.1 mike 3526:
1.618 mike 3527: </dl><h5 id="comment-end-space-state"><span class="secno">9.2.4.52 </span><dfn>Comment end space state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3528:
3529: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3530:
1.333 mike 3531: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
1.1 mike 3532: <dt>U+000A LINE FEED (LF)</dt>
3533: <dt>U+000C FORM FEED (FF)</dt>
3534: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3535: <dt>U+0020 SPACE</dt>
1.541 mike 3536: <dd>Append the <a href="#current-input-character">current input character</a> to the comment token's data. Stay in
1.1 mike 3537: the <a href="#comment-end-space-state">comment end space state</a>.</dd>
3538:
1.333 mike 3539: <dt>U+002D HYPHEN-MINUS (-)</dt>
3540: <dd>Switch to the <a href="#comment-end-dash-state">comment end dash state</a>.</dd>
3541:
3542: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3543: <dd>Emit the comment token. Switch to the <a href="#data-state">data
3544: state</a>.</dd>
3545:
1.1 mike 3546: <dt>EOF</dt>
3547: <dd><a href="#parse-error">Parse error</a>. Emit the comment token. Reconsume
3548: the EOF character in the <a href="#data-state">data state</a>.</dd> <!-- see
3549: comment in comment end state -->
3550:
3551: <dt>Anything else</dt>
1.541 mike 3552: <dd>Append the <a href="#current-input-character">current input character</a> to the comment token's data. Switch
1.1 mike 3553: to the <a href="#comment-state">comment state</a>.</dd>
3554:
1.618 mike 3555: </dl><h5 id="doctype-state"><span class="secno">9.2.4.53 </span><dfn>DOCTYPE state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3556:
3557: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3558:
3559: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3560: <dt>U+000A LINE FEED (LF)</dt>
3561: <dt>U+000C FORM FEED (FF)</dt>
3562: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3563: <dt>U+0020 SPACE</dt>
3564: <dd>Switch to the <a href="#before-doctype-name-state">before DOCTYPE name state</a>.</dd>
3565:
3566: <dt>EOF</dt>
3567: <dd><a href="#parse-error">Parse error</a>. Create a new DOCTYPE token. Set its
3568: <i>force-quirks flag</i> to <i>on</i>. Emit the token. Reconsume
3569: the EOF character in the <a href="#data-state">data state</a>.</dd>
3570:
3571: <dt>Anything else</dt>
1.608 mike 3572: <dd><a href="#parse-error">Parse error</a>. Reconsume the character in the
3573: <a href="#before-doctype-name-state">before DOCTYPE name state</a>.</dd>
1.1 mike 3574:
1.618 mike 3575: </dl><h5 id="before-doctype-name-state"><span class="secno">9.2.4.54 </span><dfn>Before DOCTYPE name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3576:
3577: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3578:
3579: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3580: <dt>U+000A LINE FEED (LF)</dt>
3581: <dt>U+000C FORM FEED (FF)</dt>
3582: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3583: <dt>U+0020 SPACE</dt>
3584: <dd>Stay in the <a href="#before-doctype-name-state">before DOCTYPE name state</a>.</dd>
3585:
3586: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
3587: <dd>Create a new DOCTYPE token. Set the token's name to the
1.541 mike 3588: lowercase version of the <a href="#current-input-character">current input character</a> (add 0x0020 to the
1.1 mike 3589: character's code point). Switch to the <a href="#doctype-name-state">DOCTYPE name
3590: state</a>.</dd>
3591:
1.333 mike 3592: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3593: <dd><a href="#parse-error">Parse error</a>. Create a new DOCTYPE token. Set its
3594: <i>force-quirks flag</i> to <i>on</i>. Emit the token. Switch to
3595: the <a href="#data-state">data state</a>.</dd>
3596:
1.1 mike 3597: <dt>EOF</dt>
3598: <dd><a href="#parse-error">Parse error</a>. Create a new DOCTYPE token. Set its
3599: <i>force-quirks flag</i> to <i>on</i>. Emit the token. Reconsume
3600: the EOF character in the <a href="#data-state">data state</a>.</dd>
3601:
3602: <dt>Anything else</dt>
3603: <dd>Create a new DOCTYPE token. Set the token's name to the
3604: <a href="#current-input-character">current input character</a>. Switch to the <a href="#doctype-name-state">DOCTYPE name
3605: state</a>.</dd>
3606:
1.618 mike 3607: </dl><h5 id="doctype-name-state"><span class="secno">9.2.4.55 </span><dfn>DOCTYPE name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3608:
3609: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3610:
3611: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3612: <dt>U+000A LINE FEED (LF)</dt>
3613: <dt>U+000C FORM FEED (FF)</dt>
3614: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3615: <dt>U+0020 SPACE</dt>
3616: <dd>Switch to the <a href="#after-doctype-name-state">after DOCTYPE name state</a>.</dd>
3617:
3618: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3619: <dd>Emit the current DOCTYPE token. Switch to the <a href="#data-state">data
3620: state</a>.</dd>
3621:
3622: <dt>U+0041 LATIN CAPITAL LETTER A through to U+005A LATIN CAPITAL LETTER Z</dt>
1.541 mike 3623: <dd>Append the lowercase version of the <a href="#current-input-character">current input
3624: character</a> (add 0x0020 to the character's code point) to the
3625: current DOCTYPE token's name. Stay in the <a href="#doctype-name-state">DOCTYPE name
3626: state</a>.</dd>
1.1 mike 3627:
3628: <dt>EOF</dt>
3629: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3630: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3631: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3632:
3633: <dt>Anything else</dt>
1.541 mike 3634: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3635: DOCTYPE token's name. Stay in the <a href="#doctype-name-state">DOCTYPE name
3636: state</a>.</dd>
1.1 mike 3637:
1.618 mike 3638: </dl><h5 id="after-doctype-name-state"><span class="secno">9.2.4.56 </span><dfn>After DOCTYPE name state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3639:
3640: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3641:
3642: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3643: <dt>U+000A LINE FEED (LF)</dt>
3644: <dt>U+000C FORM FEED (FF)</dt>
3645: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3646: <dt>U+0020 SPACE</dt>
3647: <dd>Stay in the <a href="#after-doctype-name-state">after DOCTYPE name state</a>.</dd>
3648:
3649: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3650: <dd>Emit the current DOCTYPE token. Switch to the <a href="#data-state">data
3651: state</a>.</dd>
3652:
3653: <dt>EOF</dt>
3654: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3655: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3656: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3657:
3658: <dt>Anything else</dt>
3659: <dd>
3660:
3661: <p>If the six characters starting from the <a href="#current-input-character">current input
3662: character</a> are an <a href="infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a> match
3663: for the word "PUBLIC", then consume those characters and switch to
1.444 mike 3664: the <a href="#after-doctype-public-keyword-state">after DOCTYPE public keyword state</a>.</p>
1.1 mike 3665:
3666: <p>Otherwise, if the six characters starting from the
3667: <a href="#current-input-character">current input character</a> are an <a href="infrastructure.html#ascii-case-insensitive">ASCII
3668: case-insensitive</a> match for the word "SYSTEM", then consume
1.444 mike 3669: those characters and switch to the <a href="#after-doctype-system-keyword-state">after DOCTYPE system
3670: keyword state</a>.</p>
1.1 mike 3671:
3672: <p>Otherwise, this is the <a href="#parse-error">parse error</a>. Set the
3673: DOCTYPE token's <i>force-quirks flag</i> to <i>on</i>. Switch to
3674: the <a href="#bogus-doctype-state">bogus DOCTYPE state</a>.</p>
3675:
3676: </dd>
3677:
1.618 mike 3678: </dl><h5 id="after-doctype-public-keyword-state"><span class="secno">9.2.4.57 </span><dfn>After DOCTYPE public keyword state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.444 mike 3679:
3680: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3681:
3682: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3683: <dt>U+000A LINE FEED (LF)</dt>
3684: <dt>U+000C FORM FEED (FF)</dt>
3685: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3686: <dt>U+0020 SPACE</dt>
3687: <dd>Switch to the <a href="#before-doctype-public-identifier-state">before DOCTYPE public identifier
3688: state</a>.</dd>
3689:
1.620 mike 3690: <dt>U+0022 QUOTATION MARK (")</dt>
3691: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's public
3692: identifier to the empty string (not missing), then switch to the
3693: <a href="#doctype-public-identifier-double-quoted-state">DOCTYPE public identifier (double-quoted) state</a>.</dd>
3694:
3695: <dt>U+0027 APOSTROPHE (')</dt>
3696: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's public
3697: identifier to the empty string (not missing), then switch to the
3698: <a href="#doctype-public-identifier-single-quoted-state">DOCTYPE public identifier (single-quoted) state</a>.</dd>
3699:
3700: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3701: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3702: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3703: token. Switch to the <a href="#data-state">data state</a>.</dd>
3704:
1.444 mike 3705: <dt>EOF</dt>
3706: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3707: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3708: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3709:
3710: <dt>Anything else</dt>
1.620 mike 3711: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3712: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3713: DOCTYPE state</a>.</dd>
1.444 mike 3714:
1.618 mike 3715: </dl><h5 id="before-doctype-public-identifier-state"><span class="secno">9.2.4.58 </span><dfn>Before DOCTYPE public identifier state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3716:
3717: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3718:
3719: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3720: <dt>U+000A LINE FEED (LF)</dt>
3721: <dt>U+000C FORM FEED (FF)</dt>
3722: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3723: <dt>U+0020 SPACE</dt>
3724: <dd>Stay in the <a href="#before-doctype-public-identifier-state">before DOCTYPE public identifier state</a>.</dd>
3725:
3726: <dt>U+0022 QUOTATION MARK (")</dt>
3727: <dd>Set the DOCTYPE token's public identifier to the empty string
3728: (not missing), then switch to the <a href="#doctype-public-identifier-double-quoted-state">DOCTYPE public identifier
3729: (double-quoted) state</a>.</dd>
3730:
3731: <dt>U+0027 APOSTROPHE (')</dt>
3732: <dd>Set the DOCTYPE token's public identifier to the empty string
3733: (not missing), then switch to the <a href="#doctype-public-identifier-single-quoted-state">DOCTYPE public identifier
3734: (single-quoted) state</a>.</dd>
3735:
3736: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3737: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3738: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3739: token. Switch to the <a href="#data-state">data state</a>.</dd>
3740:
3741: <dt>EOF</dt>
3742: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3743: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3744: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3745:
3746: <dt>Anything else</dt>
3747: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3748: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3749: DOCTYPE state</a>.</dd>
3750:
1.618 mike 3751: </dl><h5 id="doctype-public-identifier-double-quoted-state"><span class="secno">9.2.4.59 </span><dfn>DOCTYPE public identifier (double-quoted) state</dfn></h5>
1.1 mike 3752:
3753: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3754:
3755: <dl class="switch"><dt>U+0022 QUOTATION MARK (")</dt>
3756: <dd>Switch to the <a href="#after-doctype-public-identifier-state">after DOCTYPE public identifier state</a>.</dd>
3757:
3758: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3759: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3760: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3761: token. Switch to the <a href="#data-state">data state</a>.</dd>
3762:
3763: <dt>EOF</dt>
3764: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3765: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3766: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3767:
3768: <dt>Anything else</dt>
3769: <dd>Append the <a href="#current-input-character">current input character</a> to the current DOCTYPE
3770: token's public identifier. Stay in the <a href="#doctype-public-identifier-double-quoted-state">DOCTYPE public
3771: identifier (double-quoted) state</a>.</dd>
3772:
1.618 mike 3773: </dl><h5 id="doctype-public-identifier-single-quoted-state"><span class="secno">9.2.4.60 </span><dfn>DOCTYPE public identifier (single-quoted) state</dfn></h5>
1.1 mike 3774:
3775: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3776:
3777: <dl class="switch"><dt>U+0027 APOSTROPHE (')</dt>
3778: <dd>Switch to the <a href="#after-doctype-public-identifier-state">after DOCTYPE public identifier state</a>.</dd>
3779:
3780: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3781: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3782: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3783: token. Switch to the <a href="#data-state">data state</a>.</dd>
3784:
3785: <dt>EOF</dt>
3786: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3787: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3788: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3789:
3790: <dt>Anything else</dt>
3791: <dd>Append the <a href="#current-input-character">current input character</a> to the current DOCTYPE
3792: token's public identifier. Stay in the <a href="#doctype-public-identifier-single-quoted-state">DOCTYPE public
3793: identifier (single-quoted) state</a>.</dd>
3794:
1.618 mike 3795: </dl><h5 id="after-doctype-public-identifier-state"><span class="secno">9.2.4.61 </span><dfn>After DOCTYPE public identifier state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3796:
3797: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3798:
3799: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3800: <dt>U+000A LINE FEED (LF)</dt>
3801: <dt>U+000C FORM FEED (FF)</dt>
3802: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3803: <dt>U+0020 SPACE</dt>
1.541 mike 3804: <dd>Switch to the <a href="#between-doctype-public-and-system-identifiers-state">between DOCTYPE public and system
3805: identifiers state</a>.</dd>
1.444 mike 3806:
3807: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3808: <dd>Emit the current DOCTYPE token. Switch to the <a href="#data-state">data
3809: state</a>.</dd>
3810:
3811: <dt>U+0022 QUOTATION MARK (")</dt>
3812: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's system
3813: identifier to the empty string (not missing), then switch to the
3814: <a href="#doctype-system-identifier-double-quoted-state">DOCTYPE system identifier (double-quoted) state</a>.</dd>
3815:
3816: <dt>U+0027 APOSTROPHE (')</dt>
3817: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's system
3818: identifier to the empty string (not missing), then switch to the
3819: <a href="#doctype-system-identifier-single-quoted-state">DOCTYPE system identifier (single-quoted) state</a>.</dd>
3820:
3821: <dt>EOF</dt>
3822: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3823: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3824: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3825:
3826: <dt>Anything else</dt>
3827: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3828: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3829: DOCTYPE state</a>.</dd>
3830:
1.618 mike 3831: </dl><h5 id="between-doctype-public-and-system-identifiers-state"><span class="secno">9.2.4.62 </span><dfn>Between DOCTYPE public and system identifiers state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.444 mike 3832:
3833: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3834:
3835: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3836: <dt>U+000A LINE FEED (LF)</dt>
3837: <dt>U+000C FORM FEED (FF)</dt>
3838: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3839: <dt>U+0020 SPACE</dt>
1.541 mike 3840: <dd>Stay in the <a href="#between-doctype-public-and-system-identifiers-state">between DOCTYPE public and system identifiers
3841: state</a>.</dd>
1.444 mike 3842:
3843: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3844: <dd>Emit the current DOCTYPE token. Switch to the <a href="#data-state">data
3845: state</a>.</dd>
1.1 mike 3846:
3847: <dt>U+0022 QUOTATION MARK (")</dt>
3848: <dd>Set the DOCTYPE token's system identifier to the empty string
3849: (not missing), then switch to the <a href="#doctype-system-identifier-double-quoted-state">DOCTYPE system identifier
3850: (double-quoted) state</a>.</dd>
3851:
3852: <dt>U+0027 APOSTROPHE (')</dt>
3853: <dd>Set the DOCTYPE token's system identifier to the empty string
3854: (not missing), then switch to the <a href="#doctype-system-identifier-single-quoted-state">DOCTYPE system identifier
3855: (single-quoted) state</a>.</dd>
3856:
3857: <dt>EOF</dt>
3858: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3859: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3860: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3861:
3862: <dt>Anything else</dt>
3863: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3864: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3865: DOCTYPE state</a>.</dd>
3866:
1.618 mike 3867: </dl><h5 id="after-doctype-system-keyword-state"><span class="secno">9.2.4.63 </span><dfn>After DOCTYPE system keyword state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.444 mike 3868:
3869: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3870:
3871: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3872: <dt>U+000A LINE FEED (LF)</dt>
3873: <dt>U+000C FORM FEED (FF)</dt>
3874: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3875: <dt>U+0020 SPACE</dt>
3876: <dd>Switch to the <a href="#before-doctype-system-identifier-state">before DOCTYPE system identifier
3877: state</a>.</dd>
3878:
1.620 mike 3879: <dt>U+0022 QUOTATION MARK (")</dt>
3880: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's system
3881: identifier to the empty string (not missing), then switch to the
3882: <a href="#doctype-system-identifier-double-quoted-state">DOCTYPE system identifier (double-quoted) state</a>.</dd>
3883:
3884: <dt>U+0027 APOSTROPHE (')</dt>
3885: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's system
3886: identifier to the empty string (not missing), then switch to the
3887: <a href="#doctype-system-identifier-single-quoted-state">DOCTYPE system identifier (single-quoted) state</a>.</dd>
3888:
3889: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3890: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3891: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3892: token. Switch to the <a href="#data-state">data state</a>.</dd>
3893:
1.444 mike 3894: <dt>EOF</dt>
3895: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3896: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3897: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3898:
3899: <dt>Anything else</dt>
1.620 mike 3900: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3901: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3902: DOCTYPE state</a>.</dd>
1.444 mike 3903:
1.618 mike 3904: </dl><h5 id="before-doctype-system-identifier-state"><span class="secno">9.2.4.64 </span><dfn>Before DOCTYPE system identifier state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3905:
3906: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3907:
3908: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3909: <dt>U+000A LINE FEED (LF)</dt>
3910: <dt>U+000C FORM FEED (FF)</dt>
3911: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3912: <dt>U+0020 SPACE</dt>
3913: <dd>Stay in the <a href="#before-doctype-system-identifier-state">before DOCTYPE system identifier state</a>.</dd>
3914:
3915: <dt>U+0022 QUOTATION MARK (")</dt>
3916: <dd>Set the DOCTYPE token's system identifier to the empty string
3917: (not missing), then switch to the <a href="#doctype-system-identifier-double-quoted-state">DOCTYPE system identifier
3918: (double-quoted) state</a>.</dd>
3919:
3920: <dt>U+0027 APOSTROPHE (')</dt>
3921: <dd>Set the DOCTYPE token's system identifier to the empty string
3922: (not missing), then switch to the <a href="#doctype-system-identifier-single-quoted-state">DOCTYPE system identifier
3923: (single-quoted) state</a>.</dd>
3924:
3925: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3926: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3927: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3928: token. Switch to the <a href="#data-state">data state</a>.</dd>
3929:
3930: <dt>EOF</dt>
3931: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3932: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3933: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3934:
3935: <dt>Anything else</dt>
3936: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3937: <i>force-quirks flag</i> to <i>on</i>. Switch to the <a href="#bogus-doctype-state">bogus
3938: DOCTYPE state</a>.</dd>
3939:
1.618 mike 3940: </dl><h5 id="doctype-system-identifier-double-quoted-state"><span class="secno">9.2.4.65 </span><dfn>DOCTYPE system identifier (double-quoted) state</dfn></h5>
1.1 mike 3941:
3942: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3943:
3944: <dl class="switch"><dt>U+0022 QUOTATION MARK (")</dt>
1.541 mike 3945: <dd>Switch to the <a href="#after-doctype-system-identifier-state">after DOCTYPE system identifier
3946: state</a>.</dd>
1.1 mike 3947:
3948: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3949: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3950: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3951: token. Switch to the <a href="#data-state">data state</a>.</dd>
3952:
3953: <dt>EOF</dt>
3954: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3955: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3956: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3957:
3958: <dt>Anything else</dt>
1.541 mike 3959: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3960: DOCTYPE token's system identifier. Stay in the <a href="#doctype-system-identifier-double-quoted-state">DOCTYPE system
1.1 mike 3961: identifier (double-quoted) state</a>.</dd>
3962:
1.618 mike 3963: </dl><h5 id="doctype-system-identifier-single-quoted-state"><span class="secno">9.2.4.66 </span><dfn>DOCTYPE system identifier (single-quoted) state</dfn></h5>
1.1 mike 3964:
3965: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3966:
3967: <dl class="switch"><dt>U+0027 APOSTROPHE (')</dt>
1.541 mike 3968: <dd>Switch to the <a href="#after-doctype-system-identifier-state">after DOCTYPE system identifier
3969: state</a>.</dd>
1.1 mike 3970:
3971: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3972: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3973: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE
3974: token. Switch to the <a href="#data-state">data state</a>.</dd>
3975:
3976: <dt>EOF</dt>
3977: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
3978: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
3979: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
3980:
3981: <dt>Anything else</dt>
1.541 mike 3982: <dd>Append the <a href="#current-input-character">current input character</a> to the current
3983: DOCTYPE token's system identifier. Stay in the <a href="#doctype-system-identifier-single-quoted-state">DOCTYPE system
1.1 mike 3984: identifier (single-quoted) state</a>.</dd>
3985:
1.618 mike 3986: </dl><h5 id="after-doctype-system-identifier-state"><span class="secno">9.2.4.67 </span><dfn>After DOCTYPE system identifier state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 3987:
3988: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
3989:
3990: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
3991: <dt>U+000A LINE FEED (LF)</dt>
3992: <dt>U+000C FORM FEED (FF)</dt>
3993: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
3994: <dt>U+0020 SPACE</dt>
1.541 mike 3995: <dd>Stay in the <a href="#after-doctype-system-identifier-state">after DOCTYPE system identifier
3996: state</a>.</dd>
1.1 mike 3997:
3998: <dt>U+003E GREATER-THAN SIGN (>)</dt>
3999: <dd>Emit the current DOCTYPE token. Switch to the <a href="#data-state">data
4000: state</a>.</dd>
4001:
4002: <dt>EOF</dt>
4003: <dd><a href="#parse-error">Parse error</a>. Set the DOCTYPE token's
4004: <i>force-quirks flag</i> to <i>on</i>. Emit that DOCTYPE token.
4005: Reconsume the EOF character in the <a href="#data-state">data state</a>.</dd>
4006:
4007: <dt>Anything else</dt>
4008: <dd><a href="#parse-error">Parse error</a>. Switch to the <a href="#bogus-doctype-state">bogus DOCTYPE
4009: state</a>. (This does <em>not</em> set the DOCTYPE token's
4010: <i>force-quirks flag</i> to <i>on</i>.)</dd>
4011:
1.618 mike 4012: </dl><h5 id="bogus-doctype-state"><span class="secno">9.2.4.68 </span><dfn>Bogus DOCTYPE state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4013:
4014: <p>Consume the <a href="#next-input-character">next input character</a>:</p>
4015:
4016: <dl class="switch"><dt>U+003E GREATER-THAN SIGN (>)</dt>
4017: <dd>Emit the DOCTYPE token. Switch to the <a href="#data-state">data
4018: state</a>.</dd>
4019:
4020: <dt>EOF</dt>
4021: <dd>Emit the DOCTYPE token. Reconsume the EOF character in the
4022: <a href="#data-state">data state</a>.</dd>
4023:
4024: <dt>Anything else</dt>
4025: <dd>Stay in the <a href="#bogus-doctype-state">bogus DOCTYPE state</a>.</dd>
4026:
1.618 mike 4027: </dl><h5 id="cdata-section-state"><span class="secno">9.2.4.69 </span><dfn>CDATA section state</dfn></h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4028:
4029: <p>Consume every character up to the next occurrence of the three
4030: character sequence U+005D RIGHT SQUARE BRACKET U+005D RIGHT SQUARE
4031: BRACKET U+003E GREATER-THAN SIGN (<code title="">]]></code>), or the
4032: end of the file (EOF), whichever comes first. Emit a series of
4033: character tokens consisting of all the characters consumed except
4034: the matching three character sequence at the end (if one was found
4035: before the end of the file).</p>
4036:
4037: <p>Switch to the <a href="#data-state">data state</a>.</p>
4038:
4039: <p>If the end of the file was reached, reconsume the EOF
4040: character.</p>
4041:
4042:
4043:
1.618 mike 4044: <h5 id="tokenizing-character-references"><span class="secno">9.2.4.70 </span>Tokenizing character references</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4045:
4046: <p>This section defines how to <dfn id="consume-a-character-reference">consume a character
4047: reference</dfn>. This definition is used when parsing character
1.299 mike 4048: references <a href="#character-reference-in-data-state" title="character reference in data state">in
1.1 mike 4049: text</a> and <a href="#character-reference-in-attribute-value-state" title="character reference in attribute value
4050: state">in attributes</a>.</p>
4051:
4052: <p>The behavior depends on the identity of the next character (the
4053: one immediately after the U+0026 AMPERSAND character):</p>
4054:
4055: <dl class="switch"><dt>U+0009 CHARACTER TABULATION</dt>
4056: <dt>U+000A LINE FEED (LF)</dt>
4057: <dt>U+000C FORM FEED (FF)</dt>
4058: <!--<dt>U+000D CARRIAGE RETURN (CR)</dt>-->
4059: <dt>U+0020 SPACE</dt>
4060: <dt>U+003C LESS-THAN SIGN</dt>
4061: <dt>U+0026 AMPERSAND</dt>
4062: <dt>EOF</dt>
4063: <dt>The <dfn id="additional-allowed-character">additional allowed character</dfn>, if there is one</dt>
4064:
4065: <dd>Not a character reference. No characters are consumed, and
4066: nothing is returned. (This is not an error, either.)</dd>
4067:
4068:
4069: <dt>U+0023 NUMBER SIGN (#)</dt>
4070:
4071: <dd>
4072:
4073: <p>Consume the U+0023 NUMBER SIGN.</p>
4074:
4075: <p>The behavior further depends on the character after the U+0023
4076: NUMBER SIGN:</p>
4077:
4078: <dl class="switch"><dt>U+0078 LATIN SMALL LETTER X</dt>
4079: <dt>U+0058 LATIN CAPITAL LETTER X</dt>
4080:
4081: <dd>
4082:
4083: <p>Consume the X.</p>
4084:
4085: <p>Follow the steps below, but using the range of characters
1.464 mike 4086: U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), U+0061 LATIN
4087: SMALL LETTER A to U+0066 LATIN SMALL LETTER F, and U+0041 LATIN
4088: CAPITAL LETTER A to U+0046 LATIN CAPITAL LETTER F (in other
4089: words, 0-9, A-F, a-f).</p>
1.1 mike 4090:
4091: <p>When it comes to interpreting the number, interpret it as a
4092: hexadecimal number.</p>
4093:
4094: </dd>
4095:
4096:
4097: <dt>Anything else</dt>
4098:
4099: <dd>
4100:
4101: <p>Follow the steps below, but using the range of characters
1.464 mike 4102: U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9).</p>
1.1 mike 4103:
4104: <p>When it comes to interpreting the number, interpret it as a
4105: decimal number.</p>
4106:
4107: </dd>
4108:
4109: </dl><p>Consume as many characters as match the range of characters
4110: given above.</p>
4111:
4112: <p>If no characters match the range, then don't consume any
4113: characters (and unconsume the U+0023 NUMBER SIGN character and, if
4114: appropriate, the X character). This is a <a href="#parse-error">parse
4115: error</a>; nothing is returned.</p>
4116:
4117: <p>Otherwise, if the next character is a U+003B SEMICOLON, consume
4118: that too. If it isn't, there is a <a href="#parse-error">parse
4119: error</a>.</p>
4120:
4121: <p>If one or more characters match the range, then take them all
4122: and interpret the string of characters as a number (either
4123: hexadecimal or decimal as appropriate).</p>
4124:
4125: <p>If that number is one of the numbers in the first column of the
4126: following table, then this is a <a href="#parse-error">parse error</a>. Find the
4127: row with that number in the first column, and return a character
4128: token for the Unicode character given in the second column of that
4129: row.</p>
4130:
4131: <table><thead><tr><th>Number </th><th colspan="2">Unicode character
4132: </th></tr></thead><tbody><tr><td>0x00 </td><td>U+FFFD </td><td>REPLACEMENT CHARACTER
4133: </td></tr><tr><td>0x0D </td><td>U+000A </td><td>LINE FEED (LF)
1.464 mike 4134: </td></tr><tr><td>0x80 </td><td>U+20AC </td><td>EURO SIGN (€)
1.1 mike 4135: </td></tr><tr><td>0x81 </td><td>U+0081 </td><td><control>
1.464 mike 4136: </td></tr><tr><td>0x82 </td><td>U+201A </td><td>SINGLE LOW-9 QUOTATION MARK (‚)
4137: </td></tr><tr><td>0x83 </td><td>U+0192 </td><td>LATIN SMALL LETTER F WITH HOOK (ƒ)
4138: </td></tr><tr><td>0x84 </td><td>U+201E </td><td>DOUBLE LOW-9 QUOTATION MARK („)
4139: </td></tr><tr><td>0x85 </td><td>U+2026 </td><td>HORIZONTAL ELLIPSIS (…)
4140: </td></tr><tr><td>0x86 </td><td>U+2020 </td><td>DAGGER (†)
4141: </td></tr><tr><td>0x87 </td><td>U+2021 </td><td>DOUBLE DAGGER (‡)
4142: </td></tr><tr><td>0x88 </td><td>U+02C6 </td><td>MODIFIER LETTER CIRCUMFLEX ACCENT (ˆ)
4143: </td></tr><tr><td>0x89 </td><td>U+2030 </td><td>PER MILLE SIGN (‰)
4144: </td></tr><tr><td>0x8A </td><td>U+0160 </td><td>LATIN CAPITAL LETTER S WITH CARON (Š)
4145: </td></tr><tr><td>0x8B </td><td>U+2039 </td><td>SINGLE LEFT-POINTING ANGLE QUOTATION MARK (‹)
4146: </td></tr><tr><td>0x8C </td><td>U+0152 </td><td>LATIN CAPITAL LIGATURE OE (Œ)
1.1 mike 4147: </td></tr><tr><td>0x8D </td><td>U+008D </td><td><control>
1.464 mike 4148: </td></tr><tr><td>0x8E </td><td>U+017D </td><td>LATIN CAPITAL LETTER Z WITH CARON (Ž)
1.1 mike 4149: </td></tr><tr><td>0x8F </td><td>U+008F </td><td><control>
4150: </td></tr><tr><td>0x90 </td><td>U+0090 </td><td><control>
1.464 mike 4151: </td></tr><tr><td>0x91 </td><td>U+2018 </td><td>LEFT SINGLE QUOTATION MARK (‘)
4152: </td></tr><tr><td>0x92 </td><td>U+2019 </td><td>RIGHT SINGLE QUOTATION MARK (’)
4153: </td></tr><tr><td>0x93 </td><td>U+201C </td><td>LEFT DOUBLE QUOTATION MARK (“)
4154: </td></tr><tr><td>0x94 </td><td>U+201D </td><td>RIGHT DOUBLE QUOTATION MARK (”)
4155: </td></tr><tr><td>0x95 </td><td>U+2022 </td><td>BULLET (•)
4156: </td></tr><tr><td>0x96 </td><td>U+2013 </td><td>EN DASH (–)
4157: </td></tr><tr><td>0x97 </td><td>U+2014 </td><td>EM DASH (—)
4158: </td></tr><tr><td>0x98 </td><td>U+02DC </td><td>SMALL TILDE (˜)
4159: </td></tr><tr><td>0x99 </td><td>U+2122 </td><td>TRADE MARK SIGN (™)
4160: </td></tr><tr><td>0x9A </td><td>U+0161 </td><td>LATIN SMALL LETTER S WITH CARON (š)
4161: </td></tr><tr><td>0x9B </td><td>U+203A </td><td>SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (›)
4162: </td></tr><tr><td>0x9C </td><td>U+0153 </td><td>LATIN SMALL LIGATURE OE (œ)
1.1 mike 4163: </td></tr><tr><td>0x9D </td><td>U+009D </td><td><control>
1.464 mike 4164: </td></tr><tr><td>0x9E </td><td>U+017E </td><td>LATIN SMALL LETTER Z WITH CARON (ž)
4165: </td></tr><tr><td>0x9F </td><td>U+0178 </td><td>LATIN CAPITAL LETTER Y WITH DIAERESIS (Ÿ)
1.315 mike 4166: </td></tr></tbody></table><p>Otherwise, if the number is in the range 0xD800 to 0xDFFF<!--
4167: surrogates not allowed; see the comment in the "preprocessing the
4168: input stream" section for details --> or is greater than 0x10FFFF,
4169: then this is a <a href="#parse-error">parse error</a>. Return a U+FFFD
4170: REPLACEMENT CHARACTER.</p>
1.18 mike 4171:
4172: <p>Otherwise, return a character token for the Unicode character
1.1 mike 4173: whose code point is that number.
4174:
4175: <!-- this is the same as the equivalent list in the input stream
4176: section -->
4177: If the number is in the range 0x0001 to 0x0008, <!-- HT, LF
4178: allowed --> <!-- U+000B is in the next list --> <!-- FF, CR
4179: allowed --> 0x000E to 0x001F, <!-- ASCII allowed --> 0x007F <!--to
1.315 mike 4180: 0x0084, (0x0085 NEL not allowed), 0x0086--> to 0x009F, 0xFDD0 to
4181: 0xFDEF, or is one of 0x000B, 0xFFFE, 0xFFFF, 0x1FFFE, 0x1FFFF,
4182: 0x2FFFE, 0x2FFFF, 0x3FFFE, 0x3FFFF, 0x4FFFE, 0x4FFFF, 0x5FFFE,
4183: 0x5FFFF, 0x6FFFE, 0x6FFFF, 0x7FFFE, 0x7FFFF, 0x8FFFE, 0x8FFFF,
4184: 0x9FFFE, 0x9FFFF, 0xAFFFE, 0xAFFFF, 0xBFFFE, 0xBFFFF, 0xCFFFE,
4185: 0xCFFFF, 0xDFFFE, 0xDFFFF, 0xEFFFE, 0xEFFFF, 0xFFFFE, 0xFFFFF,
4186: 0x10FFFE, or 0x10FFFF, then this is a <a href="#parse-error">parse
4187: error</a>.</p>
1.1 mike 4188:
4189: </dd>
4190:
4191:
4192: <dt>Anything else</dt>
4193:
4194: <dd>
4195:
4196: <p>Consume the maximum number of characters possible, with the
4197: consumed characters matching one of the identifiers in the first
4198: column of the <a href="named-character-references.html#named-character-references">named character references</a> table (in a
4199: <a href="infrastructure.html#case-sensitive">case-sensitive</a> manner).</p>
4200:
4201: <p>If no match can be made, then this is a <a href="#parse-error">parse
4202: error</a>. No characters are consumed, and nothing is
4203: returned.</p>
4204:
1.588 mike 4205: <p>If the last character matched is not a U+003B SEMICOLON
4206: character (;), there is a <a href="#parse-error">parse error</a>.</p>
1.1 mike 4207:
4208: <p>If the character reference is being consumed <a href="#character-reference-in-attribute-value-state" title="character reference in attribute value state">as part of an
4209: attribute</a>, and the last character matched is not a U+003B
1.588 mike 4210: SEMICOLON character (;), and the next character is in the range
4211: U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), U+0041 LATIN
4212: CAPITAL LETTER A to U+005A LATIN CAPITAL LETTER Z, or U+0061 LATIN
4213: SMALL LETTER A to U+007A LATIN SMALL LETTER Z, then, for
4214: historical reasons, all the characters that were matched after the
4215: U+0026 AMPERSAND character (&) must be unconsumed, and nothing
4216: is returned.</p>
1.1 mike 4217:
4218: <p>Otherwise, return a character token for the character
4219: corresponding to the character reference name (as given by the
4220: second column of the <a href="named-character-references.html#named-character-references">named character references</a>
4221: table).</p>
4222:
4223: <div class="example">
4224:
4225: <p>If the markup contains <code title="">I'm &notit; I tell
4226: you</code>, the character reference is parsed as "not", as in,
4227: <code title="">I'm ¬it; I tell you</code>. But if the markup
4228: was <code title="">I'm &notin; I tell you</code>, the
4229: character reference would be parsed as "notin;", resulting in
4230: <code title="">I'm ∉ I tell you</code>.</p>
4231:
4232: </div>
4233:
4234: </dd>
4235:
1.266 mike 4236: </dl></div><div class="impl">
4237:
1.363 mike 4238: <!-- v2: One thing that this doesn't define is handling deeply
4239: nested documents. There are compatibility requirements around that:
4240: you can't throw away the elements altogether, consider Tux made only
4241: with opening <font> elements, one per character. Seems that the best
4242: thing to do is to close some formatting elements from the middle of
4243: the stack when you hit a limit, or something. -->
4244:
1.614 mike 4245: <h4 id="tree-construction"><span class="secno">9.2.5 </span><dfn>Tree construction</dfn></h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4246:
4247: <p>The input to the tree construction stage is a sequence of tokens
4248: from the <a href="#tokenization">tokenization</a> stage. The tree construction
4249: stage is associated with a DOM <code>Document</code> object when a
4250: parser is created. The "output" of this stage consists of
4251: dynamically modifying or extending that document's DOM tree.</p>
4252:
4253: <p>This specification does not define when an interactive user agent
4254: has to render the <code>Document</code> so that it is available to
4255: the user, or when it has to begin accepting user input.</p>
4256:
4257: <p>As each token is emitted from the tokenizer, the user agent must
4258: process the token according to the rules given in the section
4259: corresponding to the current <a href="#insertion-mode">insertion mode</a>.</p>
4260:
4261: <p>When the steps below require the UA to <dfn id="insert-a-character">insert a
4262: character</dfn> into a node, if that node has a child immediately
4263: before where the character is to be inserted, and that child is a
4264: <code>Text</code> node, and that <code>Text</code> node was the last
4265: node that the parser inserted into the document, then the character
4266: must be appended to that <code>Text</code> node; otherwise, a new
4267: <code>Text</code> node whose data is just that character must be
4268: inserted in the appropriate place.</p>
4269:
4270: <div class="example">
4271:
4272: <p>Here are some sample inputs to the parser and the corresponding
4273: number of text nodes that they result in, assuming a user agent
4274: that executes scripts.</p>
4275:
4276: <table><thead><tr><th>Input </th><th>Number of text nodes
4277: </th></tr></thead><tbody><tr><td><pre>A<script>
4278: var script = document.getElementsByTagName('script')[0];
4279: document.body.removeChild(script);
4280: </script>B</pre>
4281: </td><td>Two adjacent text nodes in the document, containing "A" and "B".
4282: </td></tr><tr><td><pre>A<script>
4283: var text = document.createTextNode('B');
4284: document.body.appendChild(text);
4285: </script>C</pre>
4286: </td><td>Four text nodes; "A" before the script, the script's contents, "B" after the script, and then, immediately after that, "C".
4287: </td></tr><tr><td><pre>A<script>
4288: var text = document.getElementsByTagName('script')[0].firstChild;
4289: text.data = 'B';
4290: document.body.appendChild(text);
4291: </script>B</pre>
4292: </td><td>Two adjacent text nodes in the document, containing "A" and "BB".
4293: </td></tr><tr><td><pre>A<table>B<tr>C</tr>C</table></pre>
4294: </td><td>Three adjacent text nodes before the table, containing "A", "B", and "CC" respectively. (This is caused by <a href="#foster-parent" title="foster parent">foster parenting</a>.)
4295: </td></tr><tr><td><pre>A<table><tr> B</tr> B</table></pre>
4296: </td><td>Two adjacent text nodes before the table, containing "A" and " B B" (space-B-space-B) respectively. (This is caused by <a href="#foster-parent" title="foster parent">foster parenting</a>.)
4297: </td></tr><tr><td><pre>A<table><tr> B</tr> </em>C</table></pre>
4298: </td><td>Three adjacent text nodes before the table, containing "A", " B" (space-B), and "C" respectively, and one text node inside the table (as a child of a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>) with a single space character. (Space characters separated from non-space characters by non-character tokens are not affected by <a href="#foster-parent" title="foster parent">foster parenting</a>, even if those other tokens then get ignored.)
4299: </td></tr></tbody></table></div>
4300:
4301: <p id="mutation-during-parsing">DOM mutation events must not fire
4302: for changes caused by the UA parsing the document. (Conceptually,
4303: the parser is not mutating the DOM, it is constructing it.) This
1.159 mike 4304: includes the parsing of any content inserted using <code title="dom-document-write"><a href="embedded-content-0.html#dom-document-write">document.write()</a></code> and <code title="dom-document-writeln"><a href="embedded-content-0.html#dom-document-writeln">document.writeln()</a></code> calls. <a href="references.html#refsDOMEVENTS">[DOMEVENTS]</a></p>
1.1 mike 4305:
4306: <p class="note">Not all of the tag names mentioned below are
4307: conformant tag names in this specification; many are included to
4308: handle legacy content. They still form part of the algorithm that
4309: implementations are required to implement to claim conformance.</p>
4310:
4311: <p class="note">The algorithm described below places no limit on the
4312: depth of the DOM tree generated, or on the length of tag names,
4313: attribute names, attribute values, text nodes, etc. While
4314: implementors are encouraged to avoid arbitrary limits, it is
4315: recognized that <a href="infrastructure.html#hardwareLimitations">practical
1.445 mike 4316: concerns</a> will likely force user agents to impose nesting depth
4317: constraints.</p>
1.1 mike 4318:
4319:
1.614 mike 4320: <h5 id="creating-and-inserting-elements"><span class="secno">9.2.5.1 </span>Creating and inserting elements</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4321:
4322: <p>When the steps below require the UA to <dfn id="create-an-element-for-the-token" title="create an
4323: element for the token">create an element for a token</dfn> in a
4324: particular namespace, the UA must create a node implementing the
4325: interface appropriate for the element type corresponding to the tag
4326: name of the token in the given namespace (as given in the
4327: specification that defines that element, e.g. for an <code><a href="text-level-semantics.html#the-a-element">a</a></code>
4328: element in the <a href="#html-namespace-0">HTML namespace</a>, this specification
4329: defines it to be the <code><a href="text-level-semantics.html#htmlanchorelement">HTMLAnchorElement</a></code> interface), with
4330: the tag name being the name of that element, with the node being in
4331: the given namespace, and with the attributes on the node being those
4332: given in the given token.</p>
4333:
4334: <p>The interface appropriate for an element in the <a href="#html-namespace-0">HTML
1.426 mike 4335: namespace</a> that is not defined in this specification (or
4336: <a href="infrastructure.html#other-applicable-specifications">other applicable specifications</a>) is
1.44 mike 4337: <code><a href="dom.html#htmlunknownelement">HTMLUnknownElement</a></code>. Element in other namespaces whose
1.1 mike 4338: interface is not defined by that namespace's specification must use
4339: the interface <code>Element</code>.</p>
4340:
4341: <p>When a <a href="forms.html#category-reset" title="category-reset">resettable</a> element is
4342: created in this manner, its <a href="forms.html#concept-form-reset-control" title="concept-form-reset-control">reset algorithm</a> must be
4343: invoked once the attributes are set. (This initializes the element's
4344: <a href="forms.html#concept-fe-value" title="concept-fe-value">value</a> and <a href="forms.html#concept-fe-checked" title="concept-fe-checked">checkedness</a> based on the element's
4345: attributes.)</p>
4346:
4347: <hr><p>When the steps below require the UA to <dfn id="insert-an-html-element">insert an HTML
4348: element</dfn> for a token, the UA must first <a href="#create-an-element-for-the-token">create an element
4349: for the token</a> in the <a href="#html-namespace-0">HTML namespace</a>, and then
4350: append this node to the <a href="#current-node">current node</a>, and push it onto
4351: the <a href="#stack-of-open-elements">stack of open elements</a> so that it is the new
4352: <a href="#current-node">current node</a>.</p>
4353:
4354: <p>The steps below may also require that the UA insert an HTML
4355: element in a particular place, in which case the UA must follow the
4356: same steps except that it must insert or append the new node in the
4357: location specified instead of appending it to the <a href="#current-node">current
4358: node</a>. (This happens in particular during the parsing of
4359: tables with invalid content.)</p>
4360:
4361: <p>If an element created by the <a href="#insert-an-html-element">insert an HTML element</a>
4362: algorithm is a <a href="forms.html#form-associated-element">form-associated element</a>, and the
4363: <a href="#form-element-pointer"><code title="">form</code> element pointer</a> is not null,
4364: and the newly created element doesn't have a <code title="attr-fae-form"><a href="forms.html#attr-fae-form">form</a></code> attribute, the user agent must
4365: <a href="forms.html#concept-form-association" title="concept-form-association">associate</a> the newly
4366: created element with the <code><a href="forms.html#the-form-element">form</a></code> element pointed to by the
4367: <a href="#form-element-pointer"><code title="">form</code> element pointer</a> before
4368: inserting it wherever it is to be inserted.</p>
4369:
4370: <hr><p>When the steps below require the UA to <dfn id="insert-a-foreign-element">insert a foreign
4371: element</dfn> for a token, the UA must first <a href="#create-an-element-for-the-token">create an element
4372: for the token</a> in the given namespace, and then append this
4373: node to the <a href="#current-node">current node</a>, and push it onto the
4374: <a href="#stack-of-open-elements">stack of open elements</a> so that it is the new
4375: <a href="#current-node">current node</a>. If the newly created element has an <code title="">xmlns</code> attribute in the <a href="#xmlns-namespace">XMLNS namespace</a>
4376: whose value is not exactly the same as the element's namespace, that
4377: is a <a href="#parse-error">parse error</a>. Similarly, if the newly created
4378: element has an <code title="">xmlns:xlink</code> attribute in the
4379: <a href="#xmlns-namespace">XMLNS namespace</a> whose value is not the <a href="#xlink-namespace">XLink
4380: Namespace</a>, that is a <a href="#parse-error">parse error</a>.</p>
4381:
4382: <p>When the steps below require the user agent to <dfn id="adjust-mathml-attributes">adjust MathML
4383: attributes</dfn> for a token, then, if the token has an attribute
4384: named <code title="">definitionurl</code>, change its name to <code title="">definitionURL</code> (note the case difference).</p>
4385:
4386: <p>When the steps below require the user agent to <dfn id="adjust-svg-attributes">adjust SVG
4387: attributes</dfn> for a token, then, for each attribute on the token
4388: whose attribute name is one of the ones in the first column of the
4389: following table, change the attribute's name to the name given in
4390: the corresponding cell in the second column. (This fixes the case of
4391: SVG attributes that are not all lowercase.)</p>
4392:
4393: <table><thead><tr><th> Attribute name on token </th><th> Attribute name on element
4394: </th></tr></thead><tbody><tr><td> <code title="">attributename</code> </td><td> <code title="">attributeName</code>
4395: </td></tr><tr><td> <code title="">attributetype</code> </td><td> <code title="">attributeType</code>
4396: </td></tr><tr><td> <code title="">basefrequency</code> </td><td> <code title="">baseFrequency</code>
4397: </td></tr><tr><td> <code title="">baseprofile</code> </td><td> <code title="">baseProfile</code>
4398: </td></tr><tr><td> <code title="">calcmode</code> </td><td> <code title="">calcMode</code>
4399: </td></tr><tr><td> <code title="">clippathunits</code> </td><td> <code title="">clipPathUnits</code>
4400: </td></tr><tr><td> <code title="">contentscripttype</code> </td><td> <code title="">contentScriptType</code>
4401: </td></tr><tr><td> <code title="">contentstyletype</code> </td><td> <code title="">contentStyleType</code>
4402: </td></tr><tr><td> <code title="">diffuseconstant</code> </td><td> <code title="">diffuseConstant</code>
4403: </td></tr><tr><td> <code title="">edgemode</code> </td><td> <code title="">edgeMode</code>
4404: </td></tr><tr><td> <code title="">externalresourcesrequired</code> </td><td> <code title="">externalResourcesRequired</code>
4405: </td></tr><tr><td> <code title="">filterres</code> </td><td> <code title="">filterRes</code>
4406: </td></tr><tr><td> <code title="">filterunits</code> </td><td> <code title="">filterUnits</code>
4407: </td></tr><tr><td> <code title="">glyphref</code> </td><td> <code title="">glyphRef</code>
4408: </td></tr><tr><td> <code title="">gradienttransform</code> </td><td> <code title="">gradientTransform</code>
4409: </td></tr><tr><td> <code title="">gradientunits</code> </td><td> <code title="">gradientUnits</code>
4410: </td></tr><tr><td> <code title="">kernelmatrix</code> </td><td> <code title="">kernelMatrix</code>
4411: </td></tr><tr><td> <code title="">kernelunitlength</code> </td><td> <code title="">kernelUnitLength</code>
4412: </td></tr><tr><td> <code title="">keypoints</code> </td><td> <code title="">keyPoints</code>
4413: </td></tr><tr><td> <code title="">keysplines</code> </td><td> <code title="">keySplines</code>
4414: </td></tr><tr><td> <code title="">keytimes</code> </td><td> <code title="">keyTimes</code>
4415: </td></tr><tr><td> <code title="">lengthadjust</code> </td><td> <code title="">lengthAdjust</code>
4416: </td></tr><tr><td> <code title="">limitingconeangle</code> </td><td> <code title="">limitingConeAngle</code>
4417: </td></tr><tr><td> <code title="">markerheight</code> </td><td> <code title="">markerHeight</code>
4418: </td></tr><tr><td> <code title="">markerunits</code> </td><td> <code title="">markerUnits</code>
4419: </td></tr><tr><td> <code title="">markerwidth</code> </td><td> <code title="">markerWidth</code>
4420: </td></tr><tr><td> <code title="">maskcontentunits</code> </td><td> <code title="">maskContentUnits</code>
4421: </td></tr><tr><td> <code title="">maskunits</code> </td><td> <code title="">maskUnits</code>
4422: </td></tr><tr><td> <code title="">numoctaves</code> </td><td> <code title="">numOctaves</code>
4423: </td></tr><tr><td> <code title="">pathlength</code> </td><td> <code title="">pathLength</code>
4424: </td></tr><tr><td> <code title="">patterncontentunits</code> </td><td> <code title="">patternContentUnits</code>
4425: </td></tr><tr><td> <code title="">patterntransform</code> </td><td> <code title="">patternTransform</code>
4426: </td></tr><tr><td> <code title="">patternunits</code> </td><td> <code title="">patternUnits</code>
4427: </td></tr><tr><td> <code title="">pointsatx</code> </td><td> <code title="">pointsAtX</code>
4428: </td></tr><tr><td> <code title="">pointsaty</code> </td><td> <code title="">pointsAtY</code>
4429: </td></tr><tr><td> <code title="">pointsatz</code> </td><td> <code title="">pointsAtZ</code>
4430: </td></tr><tr><td> <code title="">preservealpha</code> </td><td> <code title="">preserveAlpha</code>
4431: </td></tr><tr><td> <code title="">preserveaspectratio</code> </td><td> <code title="">preserveAspectRatio</code>
4432: </td></tr><tr><td> <code title="">primitiveunits</code> </td><td> <code title="">primitiveUnits</code>
4433: </td></tr><tr><td> <code title="">refx</code> </td><td> <code title="">refX</code>
4434: </td></tr><tr><td> <code title="">refy</code> </td><td> <code title="">refY</code>
4435: </td></tr><tr><td> <code title="">repeatcount</code> </td><td> <code title="">repeatCount</code>
4436: </td></tr><tr><td> <code title="">repeatdur</code> </td><td> <code title="">repeatDur</code>
4437: </td></tr><tr><td> <code title="">requiredextensions</code> </td><td> <code title="">requiredExtensions</code>
4438: </td></tr><tr><td> <code title="">requiredfeatures</code> </td><td> <code title="">requiredFeatures</code>
4439: </td></tr><tr><td> <code title="">specularconstant</code> </td><td> <code title="">specularConstant</code>
4440: </td></tr><tr><td> <code title="">specularexponent</code> </td><td> <code title="">specularExponent</code>
4441: </td></tr><tr><td> <code title="">spreadmethod</code> </td><td> <code title="">spreadMethod</code>
4442: </td></tr><tr><td> <code title="">startoffset</code> </td><td> <code title="">startOffset</code>
4443: </td></tr><tr><td> <code title="">stddeviation</code> </td><td> <code title="">stdDeviation</code>
4444: </td></tr><tr><td> <code title="">stitchtiles</code> </td><td> <code title="">stitchTiles</code>
4445: </td></tr><tr><td> <code title="">surfacescale</code> </td><td> <code title="">surfaceScale</code>
4446: </td></tr><tr><td> <code title="">systemlanguage</code> </td><td> <code title="">systemLanguage</code>
4447: </td></tr><tr><td> <code title="">tablevalues</code> </td><td> <code title="">tableValues</code>
4448: </td></tr><tr><td> <code title="">targetx</code> </td><td> <code title="">targetX</code>
4449: </td></tr><tr><td> <code title="">targety</code> </td><td> <code title="">targetY</code>
4450: </td></tr><tr><td> <code title="">textlength</code> </td><td> <code title="">textLength</code>
4451: </td></tr><tr><td> <code title="">viewbox</code> </td><td> <code title="">viewBox</code>
4452: </td></tr><tr><td> <code title="">viewtarget</code> </td><td> <code title="">viewTarget</code>
4453: </td></tr><tr><td> <code title="">xchannelselector</code> </td><td> <code title="">xChannelSelector</code>
4454: </td></tr><tr><td> <code title="">ychannelselector</code> </td><td> <code title="">yChannelSelector</code>
4455: </td></tr><tr><td> <code title="">zoomandpan</code> </td><td> <code title="">zoomAndPan</code>
4456: </td></tr></tbody></table><p>When the steps below require the user agent to <dfn id="adjust-foreign-attributes">adjust
4457: foreign attributes</dfn> for a token, then, if any of the attributes
4458: on the token match the strings given in the first column of the
4459: following table, let the attribute be a namespaced attribute, with
4460: the prefix being the string given in the corresponding cell in the
4461: second column, the local name being the string given in the
4462: corresponding cell in the third column, and the namespace being the
4463: namespace given in the corresponding cell in the fourth
4464: column. (This fixes the use of namespaced attributes, in particular
4465: <a href="dom.html#attr-xml-lang" title="attr-xml-lang"><code title="">lang</code> attributes in
4466: the <span>XML namespace</span></a>.)</p>
4467:
4468: <table><thead><tr><th> Attribute name </th><th> Prefix </th><th> Local name </th><th> Namespace
4469: </th></tr></thead><tbody><tr><td> <code title="">xlink:actuate</code> </td><td> <code title="">xlink</code> </td><td> <code title="">actuate</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4470: </td></tr><tr><td> <code title="">xlink:arcrole</code> </td><td> <code title="">xlink</code> </td><td> <code title="">arcrole</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4471: </td></tr><tr><td> <code title="">xlink:href</code> </td><td> <code title="">xlink</code> </td><td> <code title="">href</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4472: </td></tr><tr><td> <code title="">xlink:role</code> </td><td> <code title="">xlink</code> </td><td> <code title="">role</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4473: </td></tr><tr><td> <code title="">xlink:show</code> </td><td> <code title="">xlink</code> </td><td> <code title="">show</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4474: </td></tr><tr><td> <code title="">xlink:title</code> </td><td> <code title="">xlink</code> </td><td> <code title="">title</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4475: </td></tr><tr><td> <code title="">xlink:type</code> </td><td> <code title="">xlink</code> </td><td> <code title="">type</code> </td><td> <a href="#xlink-namespace">XLink namespace</a>
4476: </td></tr><tr><td> <code title="">xml:base</code> </td><td> <code title="">xml</code> </td><td> <code title="">base</code> </td><td> <a href="#xml-namespace">XML namespace</a> <!-- attr-xml-base -->
4477: </td></tr><tr><td> <code title="">xml:lang</code> </td><td> <code title="">xml</code> </td><td> <code title="">lang</code> </td><td> <a href="#xml-namespace">XML namespace</a>
4478: </td></tr><tr><td> <code title="">xml:space</code> </td><td> <code title="">xml</code> </td><td> <code title="">space</code> </td><td> <a href="#xml-namespace">XML namespace</a>
4479: </td></tr><tr><td> <code title="">xmlns</code> </td><td> (none) </td><td> <code title="">xmlns</code> </td><td> <a href="#xmlns-namespace">XMLNS namespace</a>
4480: </td></tr><tr><td> <code title="">xmlns:xlink</code> </td><td> <code title="">xmlns</code> </td><td> <code title="">xlink</code> </td><td> <a href="#xmlns-namespace">XMLNS namespace</a>
1.91 mike 4481: </td></tr></tbody></table><hr><p>The <dfn id="generic-raw-text-element-parsing-algorithm">generic raw text element parsing algorithm</dfn> and the
1.1 mike 4482: <dfn id="generic-rcdata-element-parsing-algorithm">generic RCDATA element parsing algorithm</dfn> consist of the
4483: following steps. These algorithms are always invoked in response to
4484: a start tag token.</p>
4485:
4486: <ol><li><p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p></li>
4487:
1.91 mike 4488: <li><p>If the algorithm that was invoked is the <a href="#generic-raw-text-element-parsing-algorithm">generic raw
1.541 mike 4489: text element parsing algorithm</a>, switch the tokenizer to the
4490: <a href="#rawtext-state">RAWTEXT state</a>; otherwise the algorithm invoked
4491: was the <a href="#generic-rcdata-element-parsing-algorithm">generic RCDATA element parsing algorithm</a>,
4492: switch the tokenizer to the <a href="#rcdata-state">RCDATA state</a>.</p></li>
1.1 mike 4493:
4494: <li><p>Let the <a href="#original-insertion-mode">original insertion mode</a> be the current
4495: <a href="#insertion-mode">insertion mode</a>.</p>
4496:
1.540 mike 4497: </li><li><p>Then, switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incdata" title="insertion mode: text">text</a>".</p></li>
1.1 mike 4498:
1.614 mike 4499: </ol><h5 id="closing-elements-that-have-implied-end-tags"><span class="secno">9.2.5.2 </span>Closing elements that have implied end tags</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4500:
4501: <p>When the steps below require the UA to <dfn id="generate-implied-end-tags">generate implied end
4502: tags</dfn>, then, while the <a href="#current-node">current node</a> is a
1.422 mike 4503: <code><a href="semantics.html#the-dd-element">dd</a></code> element, a <code><a href="semantics.html#the-dt-element">dt</a></code> element, an
1.1 mike 4504: <code><a href="semantics.html#the-li-element">li</a></code> element, an <code><a href="forms.html#the-option-element">option</a></code> element, an
4505: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, a <code><a href="semantics.html#the-p-element">p</a></code> element, an
4506: <code><a href="text-level-semantics.html#the-rp-element">rp</a></code> element, or an <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> element, the UA must
4507: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
4508: elements</a>.</p>
4509:
4510: <p>If a step requires the UA to generate implied end tags but lists
4511: an element to exclude from the process, then the UA must perform the
4512: above steps as if that element was not in the above list.</p>
4513:
4514:
1.614 mike 4515: <h5 id="foster-parenting"><span class="secno">9.2.5.3 </span>Foster parenting</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4516:
4517: <p>Foster parenting happens when content is misnested in tables.</p>
4518:
4519: <p>When a node <var title="">node</var> is to be <dfn id="foster-parent" title="foster
4520: parent">foster parented</dfn>, the node <var title="">node</var>
4521: must be inserted into the <i><a href="#foster-parent-element">foster parent element</a></i>.</p>
4522:
4523: <p>The <dfn id="foster-parent-element">foster parent element</dfn> is the parent element of the
4524: last <code><a href="tabular-data.html#the-table-element">table</a></code> element in the <a href="#stack-of-open-elements">stack of open
4525: elements</a>, if there is a <code><a href="tabular-data.html#the-table-element">table</a></code> element and it has
4526: such a parent element. If there is no <code><a href="tabular-data.html#the-table-element">table</a></code> element in
4527: the <a href="#stack-of-open-elements">stack of open elements</a> (<a href="#fragment-case">fragment
4528: case</a>), then the <i><a href="#foster-parent-element">foster parent element</a></i> is the first
4529: element in the <a href="#stack-of-open-elements">stack of open elements</a> (the
1.159 mike 4530: <code><a href="semantics.html#the-html-element-0">html</a></code> element). Otherwise, if there is a
1.1 mike 4531: <code><a href="tabular-data.html#the-table-element">table</a></code> element in the <a href="#stack-of-open-elements">stack of open
4532: elements</a>, but the last <code><a href="tabular-data.html#the-table-element">table</a></code> element in the
4533: <a href="#stack-of-open-elements">stack of open elements</a> has no parent, or its parent
4534: node is not an element, then the <i><a href="#foster-parent-element">foster parent element</a></i> is
4535: the element before the last <code><a href="tabular-data.html#the-table-element">table</a></code> element in the
4536: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
4537:
4538: <p>If the <i><a href="#foster-parent-element">foster parent element</a></i> is the parent element of the
4539: last <code><a href="tabular-data.html#the-table-element">table</a></code> element in the <a href="#stack-of-open-elements">stack of open
4540: elements</a>, then <var title="">node</var> must be inserted
4541: immediately <em>before</em> the last <code><a href="tabular-data.html#the-table-element">table</a></code> element in
4542: the <a href="#stack-of-open-elements">stack of open elements</a> in the <i><a href="#foster-parent-element">foster parent
4543: element</a></i>; otherwise, <var title="">node</var> must be
4544: <em>appended</em> to the <i><a href="#foster-parent-element">foster parent element</a></i>.</p>
4545:
4546:
4547:
1.614 mike 4548: <h5 id="the-initial-insertion-mode"><span class="secno">9.2.5.4 </span>The "<dfn title="insertion mode: initial">initial</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4549:
4550: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-initial-insertion-mode" title="insertion
4551: mode: initial">initial</a>", tokens must be handled as follows:</p>
4552:
4553: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
4554: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
4555: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
4556: <dd>
4557: <p>Ignore the token.</p>
4558: </dd>
4559:
4560: <dt>A comment token</dt>
4561: <dd>
4562: <p>Append a <code>Comment</code> node to the <code>Document</code>
4563: object with the <code title="">data</code> attribute set to the
4564: data given in the comment token.</p>
4565: </dd>
4566:
4567: <dt>A DOCTYPE token</dt>
4568: <dd>
4569:
4570: <p>If the DOCTYPE token's name is not a
4571: <a href="infrastructure.html#case-sensitive">case-sensitive</a> match for the string "<code title="">html</code>", or the token's public identifier is not
4572: missing, or the token's system identifier is neither missing nor a
4573: <a href="infrastructure.html#case-sensitive">case-sensitive</a> match for the string
1.465 mike 4574: "<code><a href="infrastructure.html#about:legacy-compat">about:legacy-compat</a></code>", and none of the sets of
1.1 mike 4575: conditions in the following list are matched, then there is a
4576: <a href="#parse-error">parse error</a>. If one of the sets of conditions in the
4577: following list is matched, then there is an <dfn id="obsolete-permitted-doctype">obsolete
4578: permitted DOCTYPE</dfn>.</p>
4579:
4580: <ul><!-- only things that trigger no-quirks mode and were valid in
1.688 mike 4581: some other spec are allowed in this list --><li>The DOCTYPE token's name is a <a href="infrastructure.html#case-sensitive">case-sensitive</a>
4582: match for the string "<code title="">html</code>", the token's
4583: public identifier is the <a href="infrastructure.html#case-sensitive">case-sensitive</a> string
4584: "<code title="">-//W3C//DTD HTML 4.0//EN</code>", and
4585: the token's system identifier is either missing or the
1.1 mike 4586: <a href="infrastructure.html#case-sensitive">case-sensitive</a> string "<code title="">http://www.w3.org/TR/REC-html40/strict.dtd</code>".</li>
4587:
1.688 mike 4588: <li>The DOCTYPE token's name is a <a href="infrastructure.html#case-sensitive">case-sensitive</a>
4589: match for the string "<code title="">html</code>", the token's
4590: public identifier is the <a href="infrastructure.html#case-sensitive">case-sensitive</a> string
4591: "<code title="">-//W3C//DTD HTML 4.01//EN</code>", and
4592: the token's system identifier is either missing or the
1.1 mike 4593: <a href="infrastructure.html#case-sensitive">case-sensitive</a> string "<code title="">http://www.w3.org/TR/html4/strict.dtd</code>".</li>
4594:
1.688 mike 4595: <li>The DOCTYPE token's name is a <a href="infrastructure.html#case-sensitive">case-sensitive</a>
4596: match for the string "<code title="">html</code>", the token's
4597: public identifier is the <a href="infrastructure.html#case-sensitive">case-sensitive</a> string
4598: "<code title="">-//W3C//DTD XHTML 1.0 Strict//EN</code>",
1.1 mike 4599: and the token's system identifier is the
4600: <a href="infrastructure.html#case-sensitive">case-sensitive</a> string "<code title="">http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd</code>".</li>
4601:
1.688 mike 4602: <li>The DOCTYPE token's name is a <a href="infrastructure.html#case-sensitive">case-sensitive</a>
4603: match for the string "<code title="">html</code>", the token's
4604: public identifier is the <a href="infrastructure.html#case-sensitive">case-sensitive</a> string
4605: "<code title="">-//W3C//DTD XHTML 1.1//EN</code>", and
4606: the token's system identifier is the <a href="infrastructure.html#case-sensitive">case-sensitive</a>
1.1 mike 4607: string "<code title="">http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd</code>".</li>
4608:
4609: </ul><p>Conformance checkers may, based on the values (including
4610: presence or lack thereof) of the DOCTYPE token's name, public
4611: identifier, or system identifier, switch to a conformance checking
4612: mode for another language (e.g. based on the DOCTYPE token a
4613: conformance checker could recognize that the document is an
1.183 mike 4614: HTML4-era document, and defer to an HTML4 conformance
1.1 mike 4615: checker.)</p>
4616:
4617: <p>Append a <code>DocumentType</code> node to the
4618: <code>Document</code> node, with the <code title="">name</code>
4619: attribute set to the name given in the DOCTYPE token, or the empty
4620: string if the name was missing; the <code title="">publicId</code>
4621: attribute set to the public identifier given in the DOCTYPE token,
4622: or the empty string if the public identifier was missing; the
4623: <code title="">systemId</code> attribute set to the system
4624: identifier given in the DOCTYPE token, or the empty string if the
4625: system identifier was missing; and the other attributes specific
4626: to <code>DocumentType</code> objects set to null and empty lists
4627: as appropriate. Associate the <code>DocumentType</code> node with
4628: the <code>Document</code> object so that it is returned as the
4629: value of the <code title="">doctype</code> attribute of the
4630: <code>Document</code> object.</p>
4631:
4632: <p id="quirks-mode-doctypes">Then, if the DOCTYPE token matches
4633: one of the conditions in the following list, then set the
4634: <code>Document</code> to <a href="dom.html#quirks-mode">quirks mode</a>:</p>
4635:
4636: <ul class="brief"><li> The <i>force-quirks flag</i> is set to <i>on</i>. </li>
1.688 mike 4637: <li> The name is set to anything other than "<code title="">html</code>" (compared <a href="infrastructure.html#case-sensitive" title="case-sensitive">case-sensitively</a>). </li>
1.1 mike 4638: <li> The public identifier starts with: "<code title="">+//Silmaril//dtd html Pro v0r11 19970101//<!--EN--></code>" </li>
4639: <li> The public identifier starts with: "<code title="">-//AdvaSoft Ltd//DTD HTML 3.0 asWedit + extensions//<!--EN--></code>" </li>
4640: <li> The public identifier starts with: "<code title="">-//AS//DTD HTML 3.0 asWedit + extensions//<!--EN--></code>" </li>
4641: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0 Level 1//<!--EN--></code>" </li>
4642: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0 Level 2//<!--EN--></code>" </li>
4643: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0 Strict Level 1//<!--EN--></code>" </li>
4644: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0 Strict Level 2//<!--EN--></code>" </li>
4645: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0 Strict//<!--EN--></code>" </li>
4646: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.0//<!--EN--></code>" </li>
4647: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 2.1E//<!--EN--></code>" </li>
4648: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 3.0//<!--EN--></code>" </li>
4649: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML 3.0//EN//</code>" </li>-->
4650: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 3.2 Final//<!--EN--></code>" </li>
4651: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 3.2//<!--EN--></code>" </li>
4652: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML 3//<!--EN--></code>" </li>
4653: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Level 0//<!--EN--></code>" </li>
4654: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Level 0//EN//2.0</code>" </li>-->
4655: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Level 1//<!--EN--></code>" </li>
4656: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Level 1//EN//2.0</code>" </li>-->
4657: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Level 2//<!--EN--></code>" </li>
4658: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Level 2//EN//2.0</code>" </li>-->
4659: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Level 3//<!--EN--></code>" </li>
4660: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Level 3//EN//3.0</code>" </li>-->
4661: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Strict Level 0//<!--EN--></code>" </li>
4662: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict Level 0//EN//2.0</code>" </li>-->
4663: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Strict Level 1//<!--EN--></code>" </li>
4664: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict Level 1//EN//2.0</code>" </li>-->
4665: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Strict Level 2//<!--EN--></code>" </li>
4666: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict Level 2//EN//2.0</code>" </li>-->
4667: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Strict Level 3//<!--EN--></code>" </li>
4668: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict Level 3//EN//3.0</code>" </li>-->
4669: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML Strict//<!--EN--></code>" </li>
4670: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict//EN//2.0</code>" </li>-->
4671: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML Strict//EN//3.0</code>" </li>-->
4672: <li> The public identifier starts with: "<code title="">-//IETF//DTD HTML//<!--EN--></code>" </li>
4673: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML//EN//2.0</code>" </li>-->
4674: <!--<li> The public identifier is set to: "<code title="">-//IETF//DTD HTML//EN//3.0</code>" </li>-->
4675: <li> The public identifier starts with: "<code title="">-//Metrius//DTD Metrius Presentational//<!--EN--></code>" </li>
4676: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 2.0 HTML Strict//<!--EN--></code>" </li>
4677: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 2.0 HTML//<!--EN--></code>" </li>
4678: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 2.0 Tables//<!--EN--></code>" </li>
4679: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 3.0 HTML Strict//<!--EN--></code>" </li>
4680: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 3.0 HTML//<!--EN--></code>" </li>
4681: <li> The public identifier starts with: "<code title="">-//Microsoft//DTD Internet Explorer 3.0 Tables//<!--EN--></code>" </li>
4682: <li> The public identifier starts with: "<code title="">-//Netscape Comm. Corp.//DTD HTML//<!--EN--></code>" </li>
4683: <li> The public identifier starts with: "<code title="">-//Netscape Comm. Corp.//DTD Strict HTML//<!--EN--></code>" </li>
4684: <li> The public identifier starts with: "<code title="">-//O'Reilly and Associates//DTD HTML 2.0//<!--EN--></code>" </li>
4685: <li> The public identifier starts with: "<code title="">-//O'Reilly and Associates//DTD HTML Extended 1.0//<!--EN--></code>" </li>
4686: <li> The public identifier starts with: "<code title="">-//O'Reilly and Associates//DTD HTML Extended Relaxed 1.0//<!--EN--></code>" </li>
4687: <li> The public identifier starts with: "<code title="">-//SoftQuad Software//DTD HoTMetaL PRO 6.0::19990601::extensions to HTML 4.0//<!--EN--></code>" </li>
4688: <li> The public identifier starts with: "<code title="">-//SoftQuad//DTD HoTMetaL PRO 4.0::19971010::extensions to HTML 4.0//<!--EN--></code>" </li>
4689: <li> The public identifier starts with: "<code title="">-//Spyglass//DTD HTML 2.0 Extended//<!--EN--></code>" </li>
4690: <li> The public identifier starts with: "<code title="">-//SQ//DTD HTML 2.0 HoTMetaL + extensions//<!--EN--></code>" </li>
4691: <li> The public identifier starts with: "<code title="">-//Sun Microsystems Corp.//DTD HotJava HTML//<!--EN--></code>" </li>
4692: <li> The public identifier starts with: "<code title="">-//Sun Microsystems Corp.//DTD HotJava Strict HTML//<!--EN--></code>" </li>
4693: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 3 1995-03-24//<!--EN--></code>" </li>
4694: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 3.2 Draft//<!--EN--></code>" </li>
4695: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 3.2 Final//<!--EN--></code>" </li>
4696: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 3.2//<!--EN--></code>" </li>
4697: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 3.2S Draft//<!--EN--></code>" </li>
4698: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 4.0 Frameset//<!--EN--></code>" </li>
4699: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML 4.0 Transitional//<!--EN--></code>" </li>
4700: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML Experimental 19960712//<!--EN--></code>" </li>
4701: <li> The public identifier starts with: "<code title="">-//W3C//DTD HTML Experimental 970421//<!--EN--></code>" </li>
4702: <li> The public identifier starts with: "<code title="">-//W3C//DTD W3 HTML//<!--EN--></code>" </li>
4703: <li> The public identifier starts with: "<code title="">-//W3O//DTD W3 HTML 3.0//<!--EN--></code>" </li>
4704: <!--<li> The public identifier is set to: "<code title="">-//W3O//DTD W3 HTML 3.0//EN//</code>" </li>-->
4705: <li> The public identifier is set to: "<code title="">-//W3O//DTD W3 HTML Strict 3.0//EN//</code>" </li>
4706: <li> The public identifier starts with: "<code title="">-//WebTechs//DTD Mozilla HTML 2.0//<!--EN--></code>" </li>
4707: <li> The public identifier starts with: "<code title="">-//WebTechs//DTD Mozilla HTML//<!--EN--></code>" </li>
4708: <li> The public identifier is set to: "<code title="">-/W3C/DTD HTML 4.0 Transitional/EN</code>" </li>
4709: <li> The public identifier is set to: "<code title="">HTML</code>" </li>
4710: <li> The system identifier is set to: "<code title="">http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd</code>" </li>
4711: <li> The system identifier is missing and the public identifier starts with: "<code title="">-//W3C//DTD HTML 4.01 Frameset//<!--EN--></code>" </li>
4712: <li> The system identifier is missing and the public identifier starts with: "<code title="">-//W3C//DTD HTML 4.01 Transitional//<!--EN--></code>" </li>
4713: </ul><p>Otherwise, if the DOCTYPE token matches one of the conditions
4714: in the following list, then set the <code>Document</code> to
4715: <a href="dom.html#limited-quirks-mode">limited quirks mode</a>:</p>
4716:
4717: <ul class="brief"><li> The public identifier starts with: "<code title="">-//W3C//DTD XHTML 1.0 Frameset//<!--EN--></code>" </li>
4718: <li> The public identifier starts with: "<code title="">-//W3C//DTD XHTML 1.0 Transitional//<!--EN--></code>" </li>
4719: <li> The system identifier is not missing and the public identifier starts with: "<code title="">-//W3C//DTD HTML 4.01 Frameset//<!--EN--></code>" </li>
4720: <li> The system identifier is not missing and the public identifier starts with: "<code title="">-//W3C//DTD HTML 4.01 Transitional//<!--EN--></code>" </li>
1.688 mike 4721: </ul><p>The system identifier and public identifier strings must be
4722: compared to the values given in the lists above in an <a href="infrastructure.html#ascii-case-insensitive">ASCII
4723: case-insensitive</a> manner. A system identifier whose value is
4724: the empty string is not considered missing for the purposes of the
4725: conditions above.</p>
1.1 mike 4726:
4727: <p>Then, switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-before-html-insertion-mode" title="insertion mode: before html">before html</a>".</p>
4728:
4729: </dd>
4730:
4731: <dt>Anything else</dt>
4732: <dd>
4733:
4734: <p><a href="#parse-error">Parse error</a>.</p>
4735:
4736: <p>Set the <code>Document</code> to <a href="dom.html#quirks-mode">quirks mode</a>.</p>
4737:
4738: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-before-html-insertion-mode" title="insertion mode: before html">before html</a>", then
4739: reprocess the current token.</p>
4740:
4741: </dd>
4742:
1.614 mike 4743: </dl><h5 id="the-before-html-insertion-mode"><span class="secno">9.2.5.5 </span>The "<dfn title="insertion mode: before html">before html</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4744:
4745: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-before-html-insertion-mode" title="insertion
4746: mode: before html">before html</a>", tokens must be handled as follows:</p>
4747:
4748: <dl class="switch"><dt>A DOCTYPE token</dt>
4749: <dd>
4750: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
4751: </dd>
4752:
4753: <dt>A comment token</dt>
4754: <dd>
4755: <p>Append a <code>Comment</code> node to the <code>Document</code>
4756: object with the <code title="">data</code> attribute set to the
4757: data given in the comment token.</p>
4758: </dd>
4759:
4760: <dt>A character token that is one of U+0009 CHARACTER
4761: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
4762: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
4763: <dd>
4764: <p>Ignore the token.</p>
4765: </dd>
4766:
4767: <dt>A start tag whose tag name is "html"</dt>
4768: <dd>
4769:
4770: <p><a href="#create-an-element-for-the-token">Create an element for the token</a> in the <a href="#html-namespace-0">HTML
4771: namespace</a>. Append it to the <code>Document</code>
4772: object. Put this element in the <a href="#stack-of-open-elements">stack of open
4773: elements</a>.</p>
4774:
4775: <p id="parser-appcache">If the <code>Document</code> is being
4776: loaded as part of <a href="history.html#navigate" title="navigate">navigation</a> of a
4777: <a href="browsers.html#browsing-context">browsing context</a>, then: if the newly created element
4778: has a <code title="attr-html-manifest"><a href="semantics.html#attr-html-manifest">manifest</a></code> attribute,
4779: then <a href="infrastructure.html#resolve-a-url" title="resolve a url">resolve</a> the value of that
4780: attribute to an <a href="infrastructure.html#absolute-url">absolute URL</a>, relative to the newly
4781: created element, and if that is successful, run the <a href="offline.html#concept-appcache-init" title="concept-appcache-init">application cache selection
1.29 mike 4782: algorithm</a> with the resulting <a href="infrastructure.html#absolute-url">absolute URL</a> with
4783: any <a href="infrastructure.html#url-fragment" title="url-fragment"><fragment></a> component
4784: removed; otherwise, if there is no such attribute or resolving it
4785: fails, run the <a href="offline.html#concept-appcache-init" title="concept-appcache-init">application
4786: cache selection algorithm</a> with no manifest. The algorithm
4787: must be passed the <code>Document</code> object.</p>
1.1 mike 4788:
4789: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-before-head-insertion-mode" title="insertion mode: before head">before head</a>".</p>
4790:
4791: </dd>
4792:
1.334 mike 4793: <dt>An end tag whose tag name is one of: "head", "body", "html", "br"</dt>
4794: <dd>
4795: <p>Act as described in the "anything else" entry below.</p>
4796: </dd>
4797:
4798: <dt>Any other end tag</dt>
4799: <dd>
4800: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
4801: </dd>
4802:
1.1 mike 4803: <dt>Anything else</dt>
4804: <dd>
4805:
1.159 mike 4806: <p>Create an <code><a href="semantics.html#the-html-element-0">html</a></code> element. Append it to the
1.1 mike 4807: <code>Document</code> object. Put this element in the <a href="#stack-of-open-elements">stack
4808: of open elements</a>.</p>
4809:
4810: <p>If the <code>Document</code> is being loaded as part of <a href="history.html#navigate" title="navigate">navigation</a> of a <a href="browsers.html#browsing-context">browsing
4811: context</a>, then: run the <a href="offline.html#concept-appcache-init" title="concept-appcache-init">application cache selection
4812: algorithm</a> with no manifest, passing it the
4813: <code>Document</code> object.</p>
4814:
4815: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-before-head-insertion-mode" title="insertion mode: before head">before head</a>", then
4816: reprocess the current token.</p>
4817:
4818: </dd>
4819:
4820: </dl><p>The root element can end up being removed from the
4821: <code>Document</code> object, e.g. by scripts; nothing in particular
4822: happens in such cases, content continues being appended to the nodes
4823: as described in the next section.</p>
4824:
4825:
1.614 mike 4826: <h5 id="the-before-head-insertion-mode"><span class="secno">9.2.5.6 </span>The "<dfn title="insertion mode: before head">before head</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4827:
4828: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-before-head-insertion-mode" title="insertion
4829: mode: before head">before head</a>", tokens must be handled as follows:</p>
4830:
4831: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
4832: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
4833: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
4834: <dd>
4835: <p>Ignore the token.</p> <!-- :-( -->
4836: </dd>
4837:
4838: <dt>A comment token</dt>
4839: <dd>
4840: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
4841: node</a> with the <code title="">data</code> attribute set to
4842: the data given in the comment token.</p>
4843: </dd>
4844:
4845: <dt>A DOCTYPE token</dt>
4846: <dd>
4847: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
4848: </dd>
4849:
4850: <dt>A start tag whose tag name is "html"</dt>
4851: <dd>
4852: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
4853: mode</a>.</p>
4854: </dd>
4855:
4856: <dt>A start tag whose tag name is "head"</dt>
4857: <dd>
4858:
4859: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
4860:
4861: <p>Set the <a href="#head-element-pointer"><code title="">head</code> element pointer</a>
1.159 mike 4862: to the newly created <code><a href="semantics.html#the-head-element-0">head</a></code> element.</p>
1.1 mike 4863:
4864: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>".</p>
4865:
4866: </dd>
4867:
4868: <dt>An end tag whose tag name is one of: "head", "body", "html", "br"</dt>
4869: <dd>
4870:
4871: <p>Act as if a start tag token with the tag name "head" and no
4872: attributes had been seen, then reprocess the current token.</p>
4873:
4874: </dd>
4875:
4876: <dt>Any other end tag</dt>
4877: <dd>
4878:
4879: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
4880:
4881: </dd>
4882:
4883: <dt>Anything else</dt>
4884: <dd>
4885:
4886: <p>Act as if a start tag token with the tag name "head" and no
4887: attributes had been seen, then reprocess the current
4888: token.</p>
4889:
4890: </dd>
4891:
1.614 mike 4892: </dl><h5 id="parsing-main-inhead"><span class="secno">9.2.5.7 </span>The "<dfn title="insertion mode: in head">in head</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 4893:
4894: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inhead" title="insertion
4895: mode: in head">in head</a>", tokens must be handled as follows:</p>
4896:
4897: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
4898: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
4899: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
4900: <dd>
4901: <p><a href="#insert-a-character" title="insert a character">Insert the character</a> into
4902: the <a href="#current-node">current node</a>.</p>
4903: </dd>
4904:
4905: <dt>A comment token</dt>
4906: <dd>
4907: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
4908: node</a> with the <code title="">data</code> attribute set to
4909: the data given in the comment token.</p>
4910: </dd>
4911:
4912: <dt>A DOCTYPE token</dt>
4913: <dd>
4914: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
4915: </dd>
4916:
4917: <dt>A start tag whose tag name is "html"</dt>
4918: <dd>
4919: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
4920: mode</a>.</p>
4921: </dd>
4922:
4923: <dt>A start tag whose tag name is one of: "base", "command",
4924: "link"</dt>
4925: <dd>
4926:
4927: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
4928: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
4929: elements</a>.</p>
4930:
4931: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
4932: token's <i>self-closing flag</i></a>, if it is set.</p>
4933:
4934: </dd>
4935:
4936: <dt>A start tag whose tag name is "meta"</dt>
4937: <dd>
4938:
4939: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
4940: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
4941: elements</a>.</p>
4942:
4943: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
4944: token's <i>self-closing flag</i></a>, if it is set.</p>
4945:
4946: <p id="meta-charset-during-parse">If the element has a <code title="attr-meta-charset"><a href="semantics.html#attr-meta-charset">charset</a></code> attribute, and its
4947: value is a supported encoding, and the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> is
4948: currently <i>tentative</i>, then <a href="#change-the-encoding">change the
4949: encoding</a> to the encoding given by the value of the
4950: <code title="attr-meta-charset"><a href="semantics.html#attr-meta-charset">charset</a></code> attribute.</p>
4951:
4952: <p>Otherwise, if the element has a <code title="attr-meta-charset"><a href="semantics.html#attr-meta-charset">content</a></code> attribute, and
4953: applying the <a href="infrastructure.html#algorithm-for-extracting-an-encoding-from-a-content-type">algorithm for extracting an encoding from a
4954: Content-Type</a> to its value returns a supported encoding
4955: <var title="">encoding</var>, and the <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> is
4956: currently <i>tentative</i>, then <a href="#change-the-encoding">change the
4957: encoding</a> to the encoding <var title="">encoding</var>.</p>
4958:
4959: </dd>
4960:
4961: <dt>A start tag whose tag name is "title"</dt>
4962: <dd>
4963: <p>Follow the <a href="#generic-rcdata-element-parsing-algorithm">generic RCDATA element parsing algorithm</a>.</p>
4964: </dd>
4965:
4966: <dt>A start tag whose tag name is "noscript", if the <a href="#scripting-flag">scripting flag</a> is enabled</dt>
4967: <dt>A start tag whose tag name is one of: "noframes", "style"</dt>
4968: <dd>
1.91 mike 4969: <p>Follow the <a href="#generic-raw-text-element-parsing-algorithm">generic raw text element parsing algorithm</a>.</p>
1.1 mike 4970: </dd>
4971:
4972: <dt>A start tag whose tag name is "noscript", if the <a href="#scripting-flag">scripting flag</a> is disabled</dt>
4973: <dd>
4974:
4975: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
4976:
4977: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inheadnoscript" title="insertion mode: in head noscript">in head
4978: noscript</a>".</p>
4979:
4980: </dd>
4981:
4982: <dt id="scriptTag">A start tag whose tag name is "script"</dt>
4983: <dd>
4984:
4985: <ol><li><p><a href="#create-an-element-for-the-token">Create an element for the token</a> in the
4986: <a href="#html-namespace-0">HTML namespace</a>.</p></li>
4987:
4988: <li>
4989:
4990: <p>Mark the element as being <a href="semantics.html#parser-inserted">"parser-inserted"</a>.</p>
4991:
4992: <p class="note">This ensures that, if the script is external,
1.159 mike 4993: any <code title="dom-document-write"><a href="embedded-content-0.html#dom-document-write">document.write()</a></code>
1.1 mike 4994: calls in the script will execute in-line, instead of blowing the
4995: document away, as would happen in most other cases. It also
4996: prevents the script from executing until the end tag is
4997: seen.</p>
4998:
4999: </li>
5000:
5001: <li><p>If the parser was originally created for the <a href="#html-fragment-parsing-algorithm">HTML
5002: fragment parsing algorithm</a>, then mark the
1.484 mike 5003: <code><a href="semantics.html#script">script</a></code> element as <a href="semantics.html#already-started">"already
5004: started"</a>. (<a href="#fragment-case">fragment case</a>)</p></li>
1.1 mike 5005:
5006: <li><p>Append the new element to the <a href="#current-node">current node</a>
5007: and push it onto the <a href="#stack-of-open-elements">stack of open
5008: elements</a>.</p></li>
5009:
1.541 mike 5010: <li><p>Switch the tokenizer to the <a href="#script-data-state">script data
5011: state</a>.</p></li>
1.1 mike 5012:
5013: <li><p>Let the <a href="#original-insertion-mode">original insertion mode</a> be the current
5014: <a href="#insertion-mode">insertion mode</a>.</p>
5015:
1.540 mike 5016: </li><li><p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incdata" title="insertion mode: text">text</a>".</p></li>
1.1 mike 5017:
5018: </ol></dd>
5019:
5020: <dt>An end tag whose tag name is "head"</dt>
5021: <dd>
5022:
5023: <p>Pop the <a href="#current-node">current node</a> (which will be the
1.159 mike 5024: <code><a href="semantics.html#the-head-element-0">head</a></code> element) off the <a href="#stack-of-open-elements">stack of open
1.1 mike 5025: elements</a>.</p>
5026:
5027: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-after-head-insertion-mode" title="insertion mode: after head">after head</a>".</p>
5028:
5029: </dd>
5030:
5031: <dt>An end tag whose tag name is one of: "body", "html", "br"</dt>
5032: <dd>
5033: <p>Act as described in the "anything else" entry below.</p>
5034: </dd>
5035:
5036: <dt>A start tag whose tag name is "head"</dt>
5037: <dt>Any other end tag</dt>
5038: <dd>
5039: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5040: </dd>
5041:
5042: <dt>Anything else</dt>
5043: <dd>
5044:
5045: <!-- can't get here with an EOF and a fragment case -->
5046:
5047: <p>Act as if an end tag token with the tag name "head" had
5048: been seen, and reprocess the current token.</p>
5049:
5050: </dd>
5051:
1.614 mike 5052: </dl><h5 id="parsing-main-inheadnoscript"><span class="secno">9.2.5.8 </span>The "<dfn title="insertion mode: in head noscript">in head noscript</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 5053:
5054: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inheadnoscript" title="insertion
5055: mode: in head noscript">in head noscript</a>", tokens must be handled as follows:</p>
5056:
5057: <dl class="switch"><dt>A DOCTYPE token</dt>
5058: <dd>
5059: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5060: </dd>
5061:
5062: <dt>A start tag whose tag name is "html"</dt>
5063: <dd>
5064: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
5065: mode</a>.</p>
5066: </dd>
5067:
5068: <dt>An end tag whose tag name is "noscript"</dt>
5069: <dd>
5070:
5071: <p>Pop the <a href="#current-node">current node</a> (which will be a
5072: <code><a href="semantics.html#the-noscript-element">noscript</a></code> element) from the <a href="#stack-of-open-elements">stack of open
5073: elements</a>; the new <a href="#current-node">current node</a> will be a
1.159 mike 5074: <code><a href="semantics.html#the-head-element-0">head</a></code> element.</p>
1.1 mike 5075:
5076: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>".</p>
5077:
5078: </dd>
5079:
5080: <dt>A character token that is one of U+0009 CHARACTER
5081: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
5082: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
5083: <dt>A comment token</dt>
5084: <dt>A start tag whose tag name is one of: "link", "meta", "noframes", "style"</dt>
5085: <dd>
5086: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
5087: mode</a>.</p>
5088: </dd>
5089:
5090: <dt>An end tag whose tag name is "br"</dt>
5091: <dd>
5092: <p>Act as described in the "anything else" entry below.</p>
5093: </dd>
5094:
5095: <dt>A start tag whose tag name is one of: "head", "noscript"</dt>
5096: <dt>Any other end tag</dt>
5097: <dd>
5098: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5099: </dd>
5100:
5101: <dt>Anything else</dt>
5102: <dd>
5103:
5104: <!-- can't get here with an EOF and a fragment case -->
5105:
5106: <p><a href="#parse-error">Parse error</a>. Act as if an end tag with the tag
5107: name "noscript" had been seen and reprocess the current
5108: token.</p>
5109:
5110: </dd>
5111:
1.614 mike 5112: </dl><h5 id="the-after-head-insertion-mode"><span class="secno">9.2.5.9 </span>The "<dfn title="insertion mode: after head">after head</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 5113:
5114: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-after-head-insertion-mode" title="insertion
5115: mode: after head">after head</a>", tokens must be handled as follows:</p>
5116:
5117: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
5118: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
5119: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
5120: <dd>
5121: <p><a href="#insert-a-character" title="insert a character">Insert the character</a> into
5122: the <a href="#current-node">current node</a>.</p>
5123: </dd>
5124:
5125: <dt>A comment token</dt>
5126: <dd>
5127: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
5128: node</a> with the <code title="">data</code> attribute set to
5129: the data given in the comment token.</p>
5130: </dd>
5131:
5132: <dt>A DOCTYPE token</dt>
5133: <dd>
5134: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5135: </dd>
5136:
5137: <dt>A start tag whose tag name is "html"</dt>
5138: <dd>
5139: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
5140: mode</a>.</p>
5141: </dd>
5142:
5143: <dt>A start tag whose tag name is "body"</dt>
5144: <dd>
5145:
5146: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5147:
5148: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
5149:
5150: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>".</p>
5151:
5152: </dd>
5153:
5154: <dt>A start tag whose tag name is "frameset"</dt>
5155: <dd>
5156:
5157: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5158:
5159: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inframeset" title="insertion mode: in frameset">in frameset</a>".</p>
5160:
5161: </dd>
5162:
5163: <dt>A start tag token whose tag name is one of: "base", "link",
5164: "meta", "noframes", "script", "style", "title"</dt>
5165: <dd>
5166:
5167: <p><a href="#parse-error">Parse error</a>.</p>
5168:
5169: <p>Push the node pointed to by the <a href="#head-element-pointer"><code title="">head</code> element pointer</a> onto the
5170: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
5171:
5172: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
5173: mode</a>.</p>
5174:
5175: <p>Remove the node pointed to by the <a href="#head-element-pointer"><code title="">head</code> element pointer</a> from the <a href="#stack-of-open-elements">stack
5176: of open elements</a>.</p>
5177:
5178: <p class="note">The <a href="#head-element-pointer"><code title="">head</code> element
5179: pointer</a> cannot be null at this point.</p>
5180:
5181: </dd>
5182:
5183: <dt>An end tag whose tag name is one of: "body", "html", "br"</dt>
5184: <dd>
5185: <p>Act as described in the "anything else" entry below.</p>
5186: </dd>
5187:
5188: <dt>A start tag whose tag name is "head"</dt>
5189: <dt>Any other end tag</dt>
5190: <dd>
5191: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5192: </dd>
5193:
5194: <dt>Anything else</dt>
5195: <dd>
5196: <p>Act as if a start tag token with the tag name "body" and no
5197: attributes had been seen, then set the <a href="#frameset-ok-flag">frameset-ok
5198: flag</a> back to "ok", and then reprocess the current
5199: token.</p>
5200: </dd>
5201:
1.614 mike 5202: </dl><h5 id="parsing-main-inbody"><span class="secno">9.2.5.10 </span>The "<dfn title="insertion mode: in body">in body</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 5203:
5204: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inbody" title="insertion
5205: mode: in body">in body</a>", tokens must be handled as follows:</p>
5206:
5207: <dl class="switch"><dt>A character token</dt>
5208: <dd>
5209:
5210: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5211: any.</p>
5212:
5213: <p><a href="#insert-a-character" title="insert a character">Insert the token's
5214: character</a> into the <a href="#current-node">current node</a>.</p>
5215:
5216: <p>If the token is not one of U+0009 CHARACTER TABULATION, U+000A
5217: LINE FEED (LF), U+000C FORM FEED (FF), <!--U+000D CARRIAGE RETURN
5218: (CR),--> or U+0020 SPACE, then set the <a href="#frameset-ok-flag">frameset-ok
5219: flag</a> to "not ok".</p>
5220:
5221: </dd>
5222:
5223: <dt>A comment token</dt>
5224: <dd>
5225: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
5226: node</a> with the <code title="">data</code> attribute set to
5227: the data given in the comment token.</p>
5228: </dd>
5229:
5230: <dt>A DOCTYPE token</dt>
5231: <dd>
5232: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
5233: </dd>
5234:
5235: <dt>A start tag whose tag name is "html"</dt>
5236: <dd>
5237: <p><a href="#parse-error">Parse error</a>. For each attribute on the token,
5238: check to see if the attribute is already present on the top
5239: element of the <a href="#stack-of-open-elements">stack of open elements</a>. If it is not,
5240: add the attribute and its corresponding value to that element.</p>
5241: </dd>
5242:
5243: <dt>A start tag token whose tag name is one of: "base", "command",
5244: "link", "meta", "noframes", "script", "style", "title"</dt>
5245: <dd>
5246: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
5247: mode</a>.</p>
5248: </dd>
5249:
5250: <dt>A start tag whose tag name is "body"</dt>
5251: <dd>
5252:
5253: <p><a href="#parse-error">Parse error</a>.</p>
5254:
5255: <p>If the second element on the <a href="#stack-of-open-elements">stack of open
1.159 mike 5256: elements</a> is not a <code><a href="semantics.html#the-body-element-0">body</a></code> element, or, if the
1.1 mike 5257: <a href="#stack-of-open-elements">stack of open elements</a> has only one node on it,
5258: then ignore the token. (<a href="#fragment-case">fragment case</a>)</p>
5259:
5260: <p>Otherwise, for each attribute on the token, check to see if
1.159 mike 5261: the attribute is already present on the <code><a href="semantics.html#the-body-element-0">body</a></code>
1.1 mike 5262: element (the second element) on the <a href="#stack-of-open-elements">stack of open
5263: elements</a>. If it is not, add the attribute and its
5264: corresponding value to that element.</p>
5265:
5266: </dd>
5267:
5268: <dt>A start tag whose tag name is "frameset"</dt>
5269: <dd>
5270:
5271: <p><a href="#parse-error">Parse error</a>.</p>
5272:
5273: <p>If the second element on the <a href="#stack-of-open-elements">stack of open
1.159 mike 5274: elements</a> is not a <code><a href="semantics.html#the-body-element-0">body</a></code> element, or, if the
1.1 mike 5275: <a href="#stack-of-open-elements">stack of open elements</a> has only one node on it,
5276: then ignore the token. (<a href="#fragment-case">fragment case</a>)</p>
5277:
5278: <p>If the <a href="#frameset-ok-flag">frameset-ok flag</a> is set to "not ok", ignore
5279: the token.</p>
5280:
5281: <p>Otherwise, run the following steps:</p>
5282:
5283: <ol><li><p>Remove the second element on the <a href="#stack-of-open-elements">stack of open
5284: elements</a> from its parent node, if it has one.</p></li>
5285:
5286: <li><p>Pop all the nodes from the bottom of the <a href="#stack-of-open-elements">stack of
5287: open elements</a>, from the <a href="#current-node">current node</a> up to,
1.159 mike 5288: but not including, the root <code><a href="semantics.html#the-html-element-0">html</a></code> element.</p>
1.1 mike 5289:
5290: </li><li><p><a href="#insert-an-html-element">Insert an HTML element</a> for the
5291: token.</p></li>
5292:
5293: <li><p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inframeset" title="insertion mode: in frameset">in frameset</a>".</p>
5294:
5295: </li></ol></dd>
5296:
5297: <dt>An end-of-file token</dt>
5298: <dd>
5299:
5300: <p>If there is a node in the <a href="#stack-of-open-elements">stack of open elements</a>
1.422 mike 5301: that is not either a <code><a href="semantics.html#the-dd-element">dd</a></code> element, a <code><a href="semantics.html#the-dt-element">dt</a></code>
5302: element, an <code><a href="semantics.html#the-li-element">li</a></code> element, a <code><a href="semantics.html#the-p-element">p</a></code> element, a
1.1 mike 5303: <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element, a <code><a href="tabular-data.html#the-td-element">td</a></code> element, a
5304: <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element, a <code><a href="tabular-data.html#the-th-element">th</a></code> element, a
5305: <code><a href="tabular-data.html#the-thead-element">thead</a></code> element, a <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, the
1.159 mike 5306: <code><a href="semantics.html#the-body-element-0">body</a></code> element, or the <code><a href="semantics.html#the-html-element-0">html</a></code> element, then
1.1 mike 5307: this is a <a href="#parse-error">parse error</a>.</p> <!-- (some of those are
1.422 mike 5308: fragment cases) -->
1.1 mike 5309:
5310: <p><a href="#stop-parsing">Stop parsing</a>.</p>
5311:
5312: </dd>
5313:
5314: <dt>An end tag whose tag name is "body"</dt>
5315: <dd>
5316:
5317: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have a <code>body</code> element
5318: in scope</a>, this is a <a href="#parse-error">parse error</a>; ignore the
5319: token.</p>
5320:
5321: <!-- if we get here, the insertion mode here is forcibly "in
5322: body". -->
5323:
5324: <p>Otherwise, if there is a node in the <a href="#stack-of-open-elements">stack of open
1.422 mike 5325: elements</a> that is not either a <code><a href="semantics.html#the-dd-element">dd</a></code> element, a
1.1 mike 5326: <code><a href="semantics.html#the-dt-element">dt</a></code> element, an <code><a href="semantics.html#the-li-element">li</a></code> element, an
5327: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, an <code><a href="forms.html#the-option-element">option</a></code> element, a
5328: <code><a href="semantics.html#the-p-element">p</a></code> element, an <code><a href="text-level-semantics.html#the-rp-element">rp</a></code> element, an
5329: <code><a href="text-level-semantics.html#the-rt-element">rt</a></code> element, a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element, a
5330: <code><a href="tabular-data.html#the-td-element">td</a></code> element, a <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code> element, a
5331: <code><a href="tabular-data.html#the-th-element">th</a></code> element, a <code><a href="tabular-data.html#the-thead-element">thead</a></code> element, a
1.159 mike 5332: <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, the <code><a href="semantics.html#the-body-element-0">body</a></code> element, or the
5333: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 5334: error</a>.</p> <!-- (some of those are fragment cases, e.g. for
5335: <tbody> you'd have hit the first paragraph since the <body>
1.422 mike 5336: wouldn't be in scope, unless it was a fragment case) -->
1.1 mike 5337:
5338: <!-- If we ever change the frameset-ok flag to an insertion mode,
5339: then we'd have to somehow keep track of its state when we switch
5340: to after-body. -->
5341:
5342: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-afterbody" title="insertion mode: after body">after body</a>".</p>
5343:
5344: </dd>
5345:
5346: <dt>An end tag whose tag name is "html"</dt>
5347: <dd>
5348:
5349: <p>Act as if an end tag with tag name "body" had been seen,
5350: then, if that token wasn't ignored, reprocess the current
5351: token.</p>
5352:
5353: </dd>
5354:
5355: <!-- start tags for non-phrasing flow content elements -->
5356:
5357: <!-- the normal ones -->
5358: <dt>A start tag whose tag name is one of: "address", "article",
1.683 mike 5359: "aside", "blockquote", "center", <!--v2DATAGRID"datagrid",-->
1.305 mike 5360: "details", "dir", "div", "dl", "fieldset", "figure", "footer",
5361: "header", "hgroup", "menu", "nav", "ol", "p", "section", "ul"</dt>
1.1 mike 5362: <dd>
5363:
5364: <!-- As of May 2008 this doesn't match any browser exactly, but is
5365: as close to what IE does as I can get without doing the non-tree
5366: DOM nonsense, and thus should actually afford better compatibility
5367: when implemented by the other browsers. -->
5368:
5369: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5370: an element in scope">has a <code>p</code> element in
5371: scope</a>, then act as if an end tag with the tag name
5372: "p" had been seen.</p>
5373:
5374: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5375:
5376: </dd>
5377:
5378: <!-- as normal, but close h1-h6 if it's the current node -->
5379: <dt>A start tag whose tag name is one of: "h1", "h2", "h3", "h4",
5380: "h5", "h6"</dt>
5381: <dd>
5382:
5383: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5384: an element in scope">has a <code>p</code> element in
5385: scope</a>, then act as if an end tag with the tag name
5386: "p" had been seen.</p>
5387:
5388: <p>If the <a href="#current-node">current node</a> is an element whose tag name
5389: is one of "h1", "h2", "h3", "h4", "h5", or "h6", then this is a
5390: <a href="#parse-error">parse error</a>; pop the <a href="#current-node">current node</a> off
5391: the <a href="#stack-of-open-elements">stack of open elements</a>.</p>
5392: <!-- See https://bugs.webkit.org/show_bug.cgi?id=12646 -->
5393:
5394: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5395:
5396: </dd>
5397:
5398: <!-- as normal, but drops leading newline -->
5399: <dt>A start tag whose tag name is one of: "pre", "listing"</dt>
5400: <dd>
5401:
5402: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5403: an element in scope">has a <code>p</code> element in
5404: scope</a>, then act as if an end tag with the tag name
5405: "p" had been seen.</p>
5406:
5407: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5408:
5409: <p>If the next token is a U+000A LINE FEED (LF) character
5410: token, then ignore that token and move on to the next
5411: one. (Newlines at the start of <code><a href="semantics.html#the-pre-element">pre</a></code> blocks are
5412: ignored as an authoring convenience.)</p>
5413:
5414: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
5415:
5416: </dd>
5417:
5418: <!-- as normal, but interacts with the form element pointer -->
5419: <dt>A start tag whose tag name is "form"</dt>
5420: <dd>
5421:
5422: <p>If the <a href="#form-element-pointer"><code title="form">form</code> element
5423: pointer</a> is not null, then this is a <a href="#parse-error">parse
5424: error</a>; ignore the token.</p>
5425:
5426: <p>Otherwise:</p>
5427:
5428: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5429: an element in scope">has a <code>p</code> element in
5430: scope</a>, then act as if an end tag with the tag name
5431: "p" had been seen.</p>
5432:
5433: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, and set the
5434: <a href="#form-element-pointer"><code title="form">form</code> element pointer</a> to
5435: point to the element created.</p>
5436:
5437: </dd>
5438:
5439: <!-- as normal, but imply </li> when there's another <li> open in weird cases -->
5440: <dt>A start tag whose tag name is "li"</dt>
5441: <dd>
5442:
5443: <p>Run the following algorithm:</p>
5444:
5445: <ol><li><p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p></li>
5446:
5447: <li><p>Initialize <var title="">node</var> to be the <a href="#current-node">current
5448: node</a> (the bottommost node of the stack).</p></li>
5449:
1.578 mike 5450: <li><p><i>Loop</i>: If <var title="">node</var> is an
5451: <code><a href="semantics.html#the-li-element">li</a></code> element, then act as if an end tag with the tag
5452: name "li" had been seen, then jump to the last step.</p></li>
1.1 mike 5453:
1.578 mike 5454: <li><p>If <var title="">node</var> is not in the
1.1 mike 5455: <a href="#formatting">formatting</a> category, and is not in the
5456: <a href="#phrasing">phrasing</a> category, and is not an
1.306 mike 5457: <code><a href="semantics.html#the-address-element">address</a></code>, <code><a href="semantics.html#the-div-element">div</a></code>, or <code><a href="semantics.html#the-p-element">p</a></code>
1.1 mike 5458: element, then jump to the last step.</p></li> <!-- an element
5459: <foo> is in this list if the following markup:
5460:
5461: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><body><ol><li><foo><li>
5462:
5463: ...results in the second <li> not being (in any way) a descendant
5464: of the first <li>, or if <foo> is a formatting element that gets
5465: reopened later. -->
5466:
5467: <li><p>Otherwise, set <var title="">node</var> to the previous
5468: entry in the <a href="#stack-of-open-elements">stack of open elements</a> and return to
5469: the step labeled <i>loop</i>.</p></li>
5470:
5471: <li>
5472:
5473: <p>This is the last step.</p>
5474:
5475: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5476: an element in scope">has a <code>p</code> element in
5477: scope</a>, then act as if an end tag with the tag name
5478: "p" had been seen.</p>
5479:
5480: <p>Finally, <a href="#insert-an-html-element">insert an HTML element</a> for the
5481: token.</p>
5482:
5483: </li>
5484:
5485: </ol></dd>
5486:
5487: <!-- as normal, but imply </dt> or </dd> when there's another <dt> or <dd> open in weird cases -->
1.422 mike 5488: <dt>A start tag whose tag name is one of: "dd", "dt"</dt>
1.1 mike 5489: <dd>
5490:
5491: <p>Run the following algorithm:</p>
5492:
5493: <ol><li><p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p></li>
5494:
5495: <li><p>Initialize <var title="">node</var> to be the <a href="#current-node">current
5496: node</a> (the bottommost node of the stack).</p></li>
5497:
5498: <li><p><i>Loop</i>: If <var title="">node</var> is a
1.422 mike 5499: <code><a href="semantics.html#the-dd-element">dd</a></code> or <code><a href="semantics.html#the-dt-element">dt</a></code> element, then act as if an end
5500: tag with the same tag name as <var title="">node</var> had been
5501: seen, then jump to the last step.</p></li>
1.1 mike 5502:
5503: <li><p>If <var title="">node</var> is not in the
5504: <a href="#formatting">formatting</a> category, and is not in the
5505: <a href="#phrasing">phrasing</a> category, and is not an
1.306 mike 5506: <code><a href="semantics.html#the-address-element">address</a></code>, <code><a href="semantics.html#the-div-element">div</a></code>, or <code><a href="semantics.html#the-p-element">p</a></code>
1.1 mike 5507: element, then jump to the last step.</p></li> <!-- an element
5508: <foo> is in this list if the following markup:
5509:
5510: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><body><dl><dt><foo><dt>
5511:
5512: ...results in the second <dt> not being (in any way) a descendant
5513: of the first <dt>, or if <foo> is a formatting element that gets
5514: reopened later. -->
5515:
5516: <li><p>Otherwise, set <var title="">node</var> to the previous
5517: entry in the <a href="#stack-of-open-elements">stack of open elements</a> and return to
5518: the step labeled <i>loop</i>.</p></li>
5519:
5520: <li>
5521:
5522: <p>This is the last step.</p>
5523:
5524: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5525: an element in scope">has a <code>p</code> element in
5526: scope</a>, then act as if an end tag with the tag name
5527: "p" had been seen.</p>
5528:
5529: <p>Finally, <a href="#insert-an-html-element">insert an HTML element</a> for the
5530: token.</p>
5531:
5532: </li>
5533:
5534: </ol></dd>
5535:
5536: <!-- same as normal, but effectively ends parsing -->
5537: <dt>A start tag whose tag name is "plaintext"</dt>
5538: <dd>
5539:
5540: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5541: an element in scope">has a <code>p</code> element in
5542: scope</a>, then act as if an end tag with the tag name
5543: "p" had been seen.</p>
5544:
5545: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5546:
1.541 mike 5547: <p>Switch the tokenizer to the <a href="#plaintext-state">PLAINTEXT state</a>.</p>
1.1 mike 5548:
1.541 mike 5549: <p class="note">Once a start tag with the tag name "plaintext" has
5550: been seen, that will be the last token ever seen other than
5551: character tokens (and the end-of-file token), because there is no
5552: way to switch out of the <a href="#plaintext-state">PLAINTEXT state</a>.</p>
1.1 mike 5553:
5554: </dd>
5555:
5556: <!-- end tags for non-phrasing flow content elements -->
5557:
5558: <!-- the normal ones -->
5559: <dt>An end tag whose tag name is one of: "address", "article",
1.683 mike 5560: "aside", "blockquote", "center", <!--v2DATAGRID"datagrid",-->
1.305 mike 5561: "details", "dir", "div", "dl", "fieldset", "figure", "footer",
5562: "header", "hgroup", "listing", "menu", "nav", "ol", "pre",
5563: "section", "ul"</dt>
1.1 mike 5564: <dd>
5565:
5566: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have an element in scope</a>
5567: with the same tag name as that of the token, then this is a
5568: <a href="#parse-error">parse error</a>; ignore the token.</p>
5569:
5570: <p>Otherwise, run these steps:</p>
5571:
5572: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p></li>
5573:
5574: <li><p>If the <a href="#current-node">current node</a> is not an element with
5575: the same tag name as that of the token, then this is a
5576: <a href="#parse-error">parse error</a>.</p></li>
5577:
5578: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5579: until an element with the same tag name as the token has been
5580: popped from the stack.</p></li>
5581:
5582: </ol></dd>
5583:
5584: <!-- removes the form element pointer instead of the matching node -->
5585: <dt>An end tag whose tag name is "form"</dt>
5586: <dd>
5587:
5588: <p>Let <var title="">node</var> be the element that the
5589: <a href="#form-element-pointer"><code title="">form</code> element pointer</a> is set
5590: to.</p>
5591:
5592: <p>Set the <a href="#form-element-pointer"><code title="">form</code> element pointer</a>
5593: to null.</p>
5594:
5595: <p>If <var title="">node</var> is null or the <a href="#stack-of-open-elements">stack of open
5596: elements</a> does not <a href="#has-an-element-in-scope" title="has an element in
5597: scope">have <var title="">node</var> in scope</a>, then this is
5598: a <a href="#parse-error">parse error</a>; ignore the token.</p>
5599:
5600: <p>Otherwise, run these steps:</p>
5601:
5602: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p></li>
5603:
5604: <li><p>If the <a href="#current-node">current node</a> is not <var title="">node</var>, then this is a <a href="#parse-error">parse
5605: error</a>.</p></li>
5606:
5607: <li><p>Remove <var title="">node</var> from the <a href="#stack-of-open-elements">stack of
5608: open elements</a>.</p></li>
5609:
5610: </ol></dd>
5611:
5612: <!-- as normal, except </p> implies <p> if there's no <p> in scope, and needs care as the elements have optional tags -->
5613: <dt>An end tag whose tag name is "p"</dt>
5614: <dd>
5615:
5616: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have an element in scope</a>
5617: with the same tag name as that of the token, then this is a
5618: <a href="#parse-error">parse error</a>; act as if a start tag with the tag name
5619: "p" had been seen, then reprocess the current token.</p>
5620:
5621: <p>Otherwise, run these steps:</p>
5622:
5623: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>, except
5624: for elements with the same tag name as the token.</p></li>
5625:
5626: <li><p>If the <a href="#current-node">current node</a> is not an element with
5627: the same tag name as that of the token, then this is a
5628: <a href="#parse-error">parse error</a>.</p></li>
5629:
5630: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5631: until an element with the same tag name as the token has been
5632: popped from the stack.</p></li>
5633:
5634: </ol></dd>
5635:
1.234 mike 5636: <!-- as normal, but needs care as the elements have optional tags, and are further scoped by <ol>/<ul> -->
5637: <dt>An end tag whose tag name is "li"</dt>
5638: <dd>
5639:
5640: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-list-item-scope" title="has an element in list item scope">have an element in list
5641: item scope</a> with the same tag name as that of the token,
5642: then this is a <a href="#parse-error">parse error</a>; ignore the token.</p>
5643:
5644: <p>Otherwise, run these steps:</p>
5645:
5646: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>, except
5647: for elements with the same tag name as the token.</p></li>
5648:
5649: <li><p>If the <a href="#current-node">current node</a> is not an element with
5650: the same tag name as that of the token, then this is a
5651: <a href="#parse-error">parse error</a>.</p></li>
5652:
5653: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5654: until an element with the same tag name as the token has been
5655: popped from the stack.</p></li>
5656:
5657: </ol></dd>
5658:
1.1 mike 5659: <!-- as normal, but needs care as the elements have optional tags -->
1.422 mike 5660: <dt>An end tag whose tag name is one of: "dd", "dt"</dt>
1.1 mike 5661: <dd>
5662:
5663: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have an element in scope</a>
5664: with the same tag name as that of the token, then this is a
5665: <a href="#parse-error">parse error</a>; ignore the token.</p>
5666:
5667: <p>Otherwise, run these steps:</p>
5668:
5669: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>, except
5670: for elements with the same tag name as the token.</p></li>
5671:
5672: <li><p>If the <a href="#current-node">current node</a> is not an element with
5673: the same tag name as that of the token, then this is a
5674: <a href="#parse-error">parse error</a>.</p></li>
5675:
5676: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5677: until an element with the same tag name as the token has been
5678: popped from the stack.</p></li>
5679:
5680: </ol></dd>
5681:
5682: <!-- as normal, except acts as a closer for any of the h1-h6 elements -->
5683: <dt>An end tag whose tag name is one of: "h1", "h2", "h3", "h4", "h5", "h6"</dt>
5684: <dd>
5685:
5686: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have an element in scope</a>
5687: whose tag name is one of "h1", "h2", "h3", "h4", "h5", or "h6",
5688: then this is a <a href="#parse-error">parse error</a>; ignore the token.</p>
5689:
5690: <p>Otherwise, run these steps:</p>
5691:
5692: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p></li>
5693:
5694: <li><p>If the <a href="#current-node">current node</a> is not an element with
5695: the same tag name as that of the token, then this is a
5696: <a href="#parse-error">parse error</a>.</p></li>
5697:
5698: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5699: until an element whose tag name is one of "h1", "h2", "h3", "h4",
5700: "h5", or "h6" has been popped from the stack.</p></li>
5701:
5702: </ol></dd>
5703:
5704: <dt>An end tag whose tag name is "sarcasm"</dt>
5705: <dd>
5706: <p>Take a deep breath, then act as described in the "any other end
5707: tag" entry below.</p>
5708: </dd>
5709:
5710: <!-- ADOPTION AGENCY ELEMENTS
5711: Mozilla-only: bdo blink del ins sub sup q
5712: Safari-only: code dfn kbd nobr samp var wbr
5713: Both: a b big em font i s small strike strong tt u -->
5714:
5715: <dt>A start tag whose tag name is "a"</dt>
5716: <dd>
5717:
5718: <p>If the <a href="#list-of-active-formatting-elements">list of active formatting elements</a>
5719: contains an element whose tag name is "a" between the end of
5720: the list and the last marker on the list (or the start of the
5721: list if there is no marker on the list), then this is a
5722: <a href="#parse-error">parse error</a>; act as if an end tag with the tag
5723: name "a" had been seen, then remove that element from the
5724: <a href="#list-of-active-formatting-elements">list of active formatting elements</a> and the
5725: <a href="#stack-of-open-elements">stack of open elements</a> if the end tag didn't
5726: already remove it (it might not have if the element is not
5727: <a href="#has-an-element-in-table-scope" title="has an element in table scope">in table
5728: scope</a>).</p>
5729:
5730: <p class="example">In the non-conforming stream
5731: <code><a href="a">a<table><a href="b">b</table>x</code>,
5732: the first <code><a href="text-level-semantics.html#the-a-element">a</a></code> element would be closed upon seeing
5733: the second one, and the "x" character would be inside a link
5734: to "b", not to "a". This is despite the fact that the outer
5735: <code><a href="text-level-semantics.html#the-a-element">a</a></code> element is not in table scope (meaning that a
5736: regular <code></a></code> end tag at the start of the table
5737: wouldn't close the outer <code><a href="text-level-semantics.html#the-a-element">a</a></code> element).</p>
5738:
5739: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5740: any.</p>
5741:
5742: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Add that
5743: element to the <a href="#list-of-active-formatting-elements">list of active formatting
5744: elements</a>.</p>
5745:
5746: </dd>
5747:
5748: <dt>A start tag whose tag name is one of: "b", "big", "code", "em",
5749: "font", "i", "s", "small", "strike", "strong", "tt", "u"</dt>
5750: <dd>
5751:
5752: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5753: any.</p>
5754:
5755: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Add that
5756: element to the <a href="#list-of-active-formatting-elements">list of active formatting
5757: elements</a>.</p>
5758:
5759: </dd>
5760:
5761: <dt>A start tag whose tag name is "nobr"</dt>
5762: <dd>
5763:
5764: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5765: any.</p>
5766:
5767: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has an
5768: element in scope">has a <code>nobr</code> element in scope</a>,
5769: then this is a <a href="#parse-error">parse error</a>; act as if an end tag with
5770: the tag name "nobr" had been seen, then once again
5771: <a href="#reconstruct-the-active-formatting-elements">reconstruct the active formatting elements</a>, if
5772: any.</p>
5773:
5774: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Add that
5775: element to the <a href="#list-of-active-formatting-elements">list of active formatting
5776: elements</a>.</p>
5777:
5778: </dd>
5779:
5780: <dt id="adoptionAgency">An end tag whose tag name is one of: "a",
5781: "b", "big", "code", "em", "font", "i", "nobr", "s", "small",
5782: "strike", "strong", "tt", "u"</dt>
5783: <dd>
5784:
5785: <p>Follow these steps:</p>
5786:
5787: <ol><li>
5788:
5789: <p>Let the <var title="">formatting element</var> be the
5790: last element in the <a href="#list-of-active-formatting-elements">list of active formatting
5791: elements</a> that:</p>
5792:
5793: <ul><li>is between the end of the list and the last scope
5794: marker in the list, if any, or the start of the list
5795: otherwise, and</li>
5796:
5797: <li>has the same tag name as the token.</li>
5798:
5799: </ul><p>If there is no such node, or, if that node is also in the
5800: <a href="#stack-of-open-elements">stack of open elements</a> but the element is not <a href="#has-an-element-in-scope" title="has an element in scope">in scope</a>, then this is a
5801: <a href="#parse-error">parse error</a>; ignore the token, and abort these
5802: steps.</p>
5803:
5804: <p>Otherwise, if there is such a node, but that node is not
5805: in the <a href="#stack-of-open-elements">stack of open elements</a>, then this is a
5806: <a href="#parse-error">parse error</a>; remove the element from the list,
5807: and abort these steps.</p>
5808:
5809: <p>Otherwise, there is a <var title="">formatting
5810: element</var> and that element is in <a href="#stack-of-open-elements" title="stack of
5811: open elements">the stack</a> and is <a href="#has-an-element-in-scope" title="has an
5812: element in scope">in scope</a>. If the element is not the
5813: <a href="#current-node">current node</a>, this is a <a href="#parse-error">parse
5814: error</a>. In any case, proceed with the algorithm as
5815: written in the following steps.</p>
5816:
5817: </li>
5818:
5819: <li><p>Let the <var title="">furthest block</var> be the
5820: topmost node in the <a href="#stack-of-open-elements">stack of open elements</a> that
5821: is lower in the stack than the <var title="">formatting
5822: element</var>, and is not an element in the
5823: <a href="#phrasing">phrasing</a> or <a href="#formatting">formatting</a>
5824: categories. There might not be one.</p></li>
5825:
5826: <li><p>If there is no <var title="">furthest block</var>,
5827: then the UA must skip the subsequent steps and instead just
5828: pop all the nodes from the bottom of the <a href="#stack-of-open-elements">stack of open
5829: elements</a>, from the <a href="#current-node">current node</a> up to and
5830: including the <var title="">formatting element</var>, and
5831: remove the <var title="">formatting element</var> from the
5832: <a href="#list-of-active-formatting-elements">list of active formatting elements</a>.</p></li>
5833:
5834: <li><p>Let the <var title="">common ancestor</var> be the element
5835: immediately above the <var title="">formatting element</var> in the
5836: <a href="#stack-of-open-elements">stack of open elements</a>.</p></li>
5837:
5838: <li><p>Let a bookmark note the position of the <var title="">formatting element</var> in the <a href="#list-of-active-formatting-elements">list of active
5839: formatting elements</a> relative to the elements on either
5840: side of it in the list.</p></li>
5841:
5842: <li>
5843:
5844: <p>Let <var title="">node</var> and <var title="">last node</var> be the
5845: <var title="">furthest block</var>. Follow these steps:</p>
5846:
5847: <ol><li>Let <var title="">node</var> be the element immediately
5848: above <var title="">node</var> in the <a href="#stack-of-open-elements">stack of open
1.436 mike 5849: elements</a>, or if <var title="">node</var> is no longer in
5850: the <a href="#stack-of-open-elements">stack of open elements</a> (e.g. because it got
5851: removed by the next step), the element that was immediately
5852: above <var title="">node</var> in the <a href="#stack-of-open-elements">stack of open
5853: elements</a> before <var title="">node</var> was
5854: removed.</li>
1.1 mike 5855:
5856: <li>If <var title="">node</var> is not in the <a href="#list-of-active-formatting-elements">list of
5857: active formatting elements</a>, then remove <var title="">node</var> from the <a href="#stack-of-open-elements">stack of open
5858: elements</a> and then go back to step 1.</li>
5859:
5860: <li>Otherwise, if <var title="">node</var> is the <var title="">formatting element</var>, then go to the next step
5861: in the overall algorithm.</li>
5862:
5863: <li>Otherwise, if <var title="">last node</var> is the <var title="">furthest block</var>, then move the aforementioned
5864: bookmark to be immediately after the <var title="">node</var> in the <a href="#list-of-active-formatting-elements">list of active formatting
5865: elements</a>.</li>
5866:
5867: <li><a href="#create-an-element-for-the-token">Create an element for the token</a> for which the
5868: element <var title="">node</var> was created, replace the entry
5869: for <var title="">node</var> in the <a href="#list-of-active-formatting-elements">list of active
5870: formatting elements</a> with an entry for the new element,
5871: replace the entry for <var title="">node</var> in the
5872: <a href="#stack-of-open-elements">stack of open elements</a> with an entry for the new
5873: element, and let <var title="">node</var> be the new
5874: element.</li>
5875:
5876: <li>Insert <var title="">last node</var> into <var title="">node</var>, first removing it from its previous
5877: parent node if any.</li>
5878:
5879: <li>Let <var title="">last node</var> be <var title="">node</var>.</li>
5880:
5881: <li>Return to step 1 of this inner set of steps.</li>
5882:
5883: </ol></li>
5884:
5885: <li>
5886:
5887: <p>If the <var title="">common ancestor</var> node is a
5888: <code><a href="tabular-data.html#the-table-element">table</a></code>, <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>, <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>,
5889: <code><a href="tabular-data.html#the-thead-element">thead</a></code>, or <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, then,
5890: <a href="#foster-parent">foster parent</a> whatever <var title="">last
5891: node</var> ended up being in the previous step, first removing
5892: it from its previous parent node if any.</p>
5893:
5894: <p>Otherwise, append whatever <var title="">last node</var>
5895: ended up being in the previous step to the <var title="">common
5896: ancestor</var> node, first removing it from its previous parent
5897: node if any.</p>
5898:
5899: </li>
5900:
5901: <li><p><a href="#create-an-element-for-the-token">Create an element for the token</a> for which the
5902: <var title="">formatting element</var> was created.</p></li>
5903:
5904: <li><p>Take all of the child nodes of the <var title="">furthest
5905: block</var> and append them to the element created in the last
5906: step.</p></li>
5907:
5908: <li><p>Append that new element to the <var title="">furthest
5909: block</var>.</p></li>
5910:
5911: <li><p>Remove the <var title="">formatting element</var> from the
5912: <a href="#list-of-active-formatting-elements">list of active formatting elements</a>, and insert the
5913: new element into the <a href="#list-of-active-formatting-elements">list of active formatting
5914: elements</a> at the position of the aforementioned
5915: bookmark.</p></li>
5916:
5917: <li><p>Remove the <var title="">formatting element</var> from the
5918: <a href="#stack-of-open-elements">stack of open elements</a>, and insert the new element
5919: into the <a href="#stack-of-open-elements">stack of open elements</a> immediately below
5920: the position of the <var title="">furthest block</var> in that
5921: stack.</p></li>
5922:
5923: <li><p>Jump back to step 1 in this series of steps.</p></li>
5924:
1.334 mike 5925: </ol><p class="note">Because of the way this algorithm causes elements
1.304 mike 5926: to change parents, it has been dubbed the "adoption agency
5927: algorithm" (in contrast with other possible algorithms for dealing
5928: with misnested content, which included the "incest algorithm", the
1.1 mike 5929: "secret affair algorithm", and the "Heisenberg algorithm").</p>
5930:
5931: </dd>
5932:
5933: <dt>A start tag whose tag name is "button"</dt>
5934: <dd>
5935:
5936: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
5937: an element in scope">has a <code>button</code> element in
5938: scope</a>, then this is a <a href="#parse-error">parse error</a>;
5939: act as if an end tag with the tag name "button" had been seen,
5940: then reprocess the token.</p>
5941:
5942: <p>Otherwise:</p>
5943:
5944: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5945: any.</p>
5946:
5947: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5948:
5949: <p>Insert a marker at the end of the <a href="#list-of-active-formatting-elements">list of active
5950: formatting elements</a>.</p>
5951:
5952: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
5953:
5954: </dd>
5955:
5956: <dt>A start tag token whose tag name is one of: "applet",
5957: "marquee", "object"</dt>
5958: <dd>
5959:
5960: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
5961: any.</p>
5962:
5963: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
5964:
5965: <p>Insert a marker at the end of the <a href="#list-of-active-formatting-elements">list of active
5966: formatting elements</a>.</p>
5967:
5968: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
5969:
5970: </dd>
5971:
5972: <dt>An end tag token whose tag name is one of: "applet", "button",
5973: "marquee", "object"</dt>
5974: <dd>
5975:
5976: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-scope" title="has an element in scope">have an element in scope</a>
5977: with the same tag name as that of the token, then this is a
5978: <a href="#parse-error">parse error</a>; ignore the token.</p>
5979:
5980: <p>Otherwise, run these steps:</p>
5981:
5982: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p></li>
5983:
5984: <li><p>If the <a href="#current-node">current node</a> is not an element with
5985: the same tag name as that of the token, then this is a
5986: <a href="#parse-error">parse error</a>.</p></li>
5987:
5988: <li><p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
5989: until an element with the same tag name as the token has been
5990: popped from the stack.</p></li>
5991:
5992: <li><a href="#clear-the-list-of-active-formatting-elements-up-to-the-last-marker">Clear the list of active formatting elements up to the
5993: last marker</a>.</li>
5994:
5995: </ol></dd>
5996:
5997: <dt>A start tag whose tag name is "table"</dt>
5998: <dd>
5999:
6000: <p>If the <code>Document</code> is <em>not</em> set to
6001: <a href="dom.html#quirks-mode">quirks mode</a>, and the <a href="#stack-of-open-elements">stack of open
6002: elements</a> <a href="#has-an-element-in-scope" title="has an element in scope">has a
6003: <code>p</code> element in scope</a>, then act as if an end tag
6004: with the tag name "p" had been seen.</p> <!-- i hate myself (this
6005: quirk was basically caused by acid2; if i'd realised we could
6006: change the specs when i wrote acid2, we could have avoided having
6007: any parsing-mode quirks) -Hixie -->
6008:
6009: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6010:
6011: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
6012:
6013: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>".</p>
6014:
6015: </dd>
6016:
6017: <dt>A start tag whose tag name is one of: "area", "basefont",
1.589 mike 6018: "bgsound", "br", "embed", "img", "input", "keygen", "wbr"</dt>
1.1 mike 6019: <dd>
6020:
6021: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6022: any.</p>
6023:
6024: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
6025: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6026: elements</a>.</p>
6027:
6028: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
6029: token's <i>self-closing flag</i></a>, if it is set.</p>
6030:
6031: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p> <!--
1.589 mike 6032: shouldn't really do it for <area>, <basefont>, and <bgsound> -->
1.1 mike 6033:
6034: </dd>
6035:
6036: <dt>A start tag whose tag name is one of: "param", "source"</dt>
6037: <dd>
6038:
6039: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
6040: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6041: elements</a>.</p>
6042:
6043: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
6044: token's <i>self-closing flag</i></a>, if it is set.</p>
6045:
6046: </dd>
6047:
6048: <dt>A start tag whose tag name is "hr"</dt>
6049: <dd>
6050:
6051: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
6052: an element in scope">has a <code>p</code> element in
6053: scope</a>, then act as if an end tag with the tag name
6054: "p" had been seen.</p>
6055:
6056: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
6057: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6058: elements</a>.</p>
6059:
6060: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
6061: token's <i>self-closing flag</i></a>, if it is set.</p>
6062:
6063: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
6064:
6065: </dd>
6066:
6067: <dt>A start tag whose tag name is "image"</dt>
6068: <dd>
6069: <p><a href="#parse-error">Parse error</a>. Change the token's tag name
6070: to "img" and reprocess it. (Don't ask.)</p> <!-- As of
6071: 2005-12, studies showed that around 0.2% of pages used the
6072: <image> element. -->
6073: </dd>
6074:
6075: <dt id="isindex">A start tag whose tag name is "isindex"</dt>
6076: <dd>
6077:
6078: <p><a href="#parse-error">Parse error</a>.</p>
6079:
6080: <p>If the <a href="#form-element-pointer"><code title="">form</code> element
6081: pointer</a> is not null, then ignore the token.</p>
6082:
6083: <p>Otherwise:</p>
6084:
6085: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
6086: token's <i>self-closing flag</i></a>, if it is set.</p> <!--
6087: purely to reduce the number of errors (we don't care if they
6088: included the /, they're not supposed to be including the tag at
6089: all! -->
6090:
6091: <p>Act as if a start tag token with the tag name "form" had been seen.</p>
6092:
6093: <p>If the token has an attribute called "action", set the
6094: <code title="attr-form-action">action</code> attribute on the
6095: resulting <code><a href="forms.html#the-form-element">form</a></code> element to the value of the
6096: "action" attribute of the token.</p>
6097:
6098: <p>Act as if a start tag token with the tag name "hr" had been
6099: seen.</p>
6100:
6101: <p>Act as if a start tag token with the tag name "label" had been
6102: seen.</p>
6103:
6104: <p>Act as if a stream of character tokens had been seen (see below
6105: for what they should say).</p>
6106:
6107: <p>Act as if a start tag token with the tag name "input" had been
6108: seen, with all the attributes from the "isindex" token except
6109: "name", "action", and "prompt". Set the <code title="attr-fe-name"><a href="forms.html#attr-fe-name">name</a></code> attribute of the resulting
6110: <code><a href="forms.html#the-input-element">input</a></code> element to the value "<code title="">isindex</code>".</p>
6111:
6112: <p>Act as if a stream of character tokens had been seen (see
6113: below for what they should say).</p>
6114:
6115: <p>Act as if an end tag token with the tag name "label" had been
6116: seen.</p>
6117:
6118: <p>Act as if a start tag token with the tag name "hr" had been
6119: seen.</p>
6120:
6121: <p>Act as if an end tag token with the tag name "form" had been
6122: seen.</p>
6123:
6124: <p>If the token has an attribute with the name "prompt", then the
6125: first stream of characters must be the same string as given in
6126: that attribute, and the second stream of characters must be
6127: empty. Otherwise, the two streams of character tokens together
6128: should, together with the <code><a href="forms.html#the-input-element">input</a></code> element, express the
6129: equivalent of "This is a searchable index. Insert your search
6130: keywords here: (input field)" in the user's preferred
6131: language.</p>
6132:
6133: </dd>
6134:
6135: <dt>A start tag whose tag name is "textarea"</dt>
6136: <dd>
6137:
6138: <ol><li><p><a href="#insert-an-html-element">Insert an HTML element</a> for the
6139: token.</p></li>
6140:
6141: <li><p>If the next token is a U+000A LINE FEED (LF) character
6142: token, then ignore that token and move on to the next
6143: one. (Newlines at the start of <code><a href="forms.html#the-textarea-element">textarea</a></code> elements are
6144: ignored as an authoring convenience.)</p></li>
6145:
1.671 mike 6146: <li><p>Switch the tokenizer to the <a href="#rcdata-state">RCDATA
1.541 mike 6147: state</a>.</p></li>
1.1 mike 6148:
6149: <li><p>Let the <a href="#original-insertion-mode">original insertion mode</a> be the
6150: current <a href="#insertion-mode">insertion mode</a>.</p>
6151:
6152: </li><li><p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not
6153: ok".</p></li>
6154:
1.540 mike 6155: <li><p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incdata" title="insertion mode: text">text</a>".</p></li>
1.1 mike 6156:
6157: </ol></dd>
6158:
6159: <dt>A start tag whose tag name is "xmp"</dt>
6160: <dd>
6161:
1.233 mike 6162: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has
6163: an element in scope">has a <code>p</code> element in
6164: scope</a>, then act as if an end tag with the tag name
6165: "p" had been seen.</p>
6166:
1.1 mike 6167: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6168: any.</p>
6169:
6170: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
6171:
1.91 mike 6172: <p>Follow the <a href="#generic-raw-text-element-parsing-algorithm">generic raw text element parsing algorithm</a>.</p>
1.1 mike 6173:
6174: </dd>
6175:
6176: <dt>A start tag whose tag name is "iframe"</dt>
6177: <dd>
6178:
6179: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
6180:
1.91 mike 6181: <p>Follow the <a href="#generic-raw-text-element-parsing-algorithm">generic raw text element parsing algorithm</a>.</p>
1.1 mike 6182:
6183: </dd>
6184:
6185: <dt>A start tag whose tag name is "noembed"</dt>
6186: <dt>A start tag whose tag name is "noscript", if the <a href="#scripting-flag">scripting flag</a> is enabled</dt>
6187: <dd>
6188:
1.91 mike 6189: <p>Follow the <a href="#generic-raw-text-element-parsing-algorithm">generic raw text element parsing algorithm</a>.</p>
1.1 mike 6190:
6191: </dd>
6192:
6193: <dt>A start tag whose tag name is "select"</dt>
6194: <dd>
6195:
6196: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6197: any.</p>
6198:
6199: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6200:
6201: <p>Set the <a href="#frameset-ok-flag">frameset-ok flag</a> to "not ok".</p>
6202:
6203: <p>If the <a href="#insertion-mode">insertion mode</a> is one of <a href="#parsing-main-intable" title="insertion mode: in table">in table</a>", "<a href="#parsing-main-incaption" title="insertion mode: in caption">in caption</a>", "<a href="#parsing-main-incolgroup" title="insertion mode: in column group">in column group</a>",
6204: "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table
6205: body</a>", "<a href="#parsing-main-intr" title="insertion mode: in row">in
6206: row</a>", or "<a href="#parsing-main-intd" title="insertion mode: in cell">in
6207: cell</a>", then switch the <a href="#insertion-mode">insertion mode</a> to
6208: "<a href="#parsing-main-inselectintable" title="insertion mode: in select in table">in select in
6209: table</a>". Otherwise, switch the <a href="#insertion-mode">insertion mode</a>
6210: to "<a href="#parsing-main-inselect" title="insertion mode: in select">in select</a>".</p>
6211:
6212: </dd>
6213:
6214: <dt>A start tag whose tag name is one of: "optgroup", "option"</dt>
6215: <dd>
6216:
6217: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has an
6218: element in scope">has an <code>option</code> element in
6219: scope</a>, then act as if an end tag with the tag name "option"
6220: had been seen.</p>
6221:
6222: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6223: any.</p>
6224:
6225: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6226:
6227: </dd>
6228:
6229: <dt>A start tag whose tag name is one of: "rp", "rt"</dt>
6230: <dd>
6231:
6232: <!-- the parsing rules for ruby really don't match IE much at all,
6233: but in practice the markup used is very simple and so strict
6234: compatibility with IE isn't required. For example, as defined
6235: here we get very, very different behaviour than IE for
6236: pathological cases like:
6237:
6238: <ruby><ol><li><p>a<rt>b
6239: <ruby>a<rt>b<p>c
6240:
6241: But in practice most ruby markup falls into these cases:
6242:
6243: <ruby>a<rt>b</ruby>
6244: <ruby>a<rp>b<rt>c<rp>d</ruby>
6245: <ruby>a<rt>b</rt></ruby>
6246: <ruby>a<rp>b</rp><rt>c</rt><rp>d</rp></ruby>
6247:
6248: -->
6249:
6250: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-scope" title="has an
6251: element in scope">has a <code>ruby</code> element in scope</a>,
6252: then <a href="#generate-implied-end-tags">generate implied end tags</a>. If the <a href="#current-node">current
6253: node</a> is not then a <code><a href="text-level-semantics.html#the-ruby-element">ruby</a></code> element, this is a
6254: <a href="#parse-error">parse error</a>; pop all the nodes from the <a href="#current-node">current
6255: node</a> up to the node immediately before the bottommost
6256: <code><a href="text-level-semantics.html#the-ruby-element">ruby</a></code> element on the <a href="#stack-of-open-elements">stack of open
6257: elements</a>.</p>
6258:
6259: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6260:
6261: </dd>
6262:
6263: <dt>An end tag whose tag name is "br"</dt>
6264: <dd>
6265: <p><a href="#parse-error">Parse error</a>. Act as if a start tag token with
6266: the tag name "br" had been seen. Ignore the end tag token.</p>
6267: </dd>
6268:
6269: <dt>A start tag whose tag name is "math"</dt>
6270: <dd>
6271:
6272: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6273: any.</p>
6274:
6275: <p><a href="#adjust-mathml-attributes">Adjust MathML attributes</a> for the token. (This
6276: fixes the case of MathML attributes that are not all
6277: lowercase.)</p>
6278:
6279: <p><a href="#adjust-foreign-attributes">Adjust foreign attributes</a> for the token. (This
6280: fixes the use of namespaced attributes, in particular XLink.)</p>
6281:
6282: <p><a href="#insert-a-foreign-element">Insert a foreign element</a> for the token, in the
6283: <a href="#mathml-namespace">MathML namespace</a>.</p>
6284:
6285: <!-- If we ever change the frameset-ok flag to an insertion mode,
6286: the following change would be implied, except we'd have to do it
6287: even in the face of a self-closed tag:
6288: <p>Set the <span>frameset-ok flag</span> to "not ok".</p>
6289: -->
6290:
6291: <p>If the token has its <i>self-closing flag</i> set, pop the
6292: <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6293: elements</a> and <a href="#acknowledge-self-closing-flag" title="acknowledge self-closing
6294: flag">acknowledge the token's <i>self-closing flag</i></a>.</p>
6295:
6296: <p>Otherwise, if the <a href="#insertion-mode">insertion mode</a> is not already
6297: "<a href="#parsing-main-inforeign" title="insertion mode: in foreign content">in foreign
6298: content</a>", let the <a href="#secondary-insertion-mode">secondary insertion mode</a> be
6299: the current <a href="#insertion-mode">insertion mode</a>, and then switch the
6300: <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inforeign" title="insertion mode: in
6301: foreign content">in foreign content</a>".</p>
6302:
6303: </dd>
6304:
6305: <dt>A start tag whose tag name is "svg"</dt>
6306: <dd>
6307:
6308: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6309: any.</p>
6310:
6311: <p><a href="#adjust-svg-attributes">Adjust SVG attributes</a> for the token. (This fixes
6312: the case of SVG attributes that are not all lowercase.)</p>
6313:
6314: <p><a href="#adjust-foreign-attributes">Adjust foreign attributes</a> for the token. (This
6315: fixes the use of namespaced attributes, in particular XLink in
6316: SVG.)</p>
6317:
6318: <p><a href="#insert-a-foreign-element">Insert a foreign element</a> for the token, in the
6319: <a href="#svg-namespace">SVG namespace</a>.</p>
6320:
6321: <!-- If we ever change the frameset-ok flag to an insertion mode,
6322: the following change would be implied, except we'd have to do it
6323: even in the face of a self-closed tag:
6324: <p>Set the <span>frameset-ok flag</span> to "not ok".</p>
6325: -->
6326:
6327: <p>If the token has its <i>self-closing flag</i> set, pop the
6328: <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6329: elements</a> and <a href="#acknowledge-self-closing-flag" title="acknowledge self-closing
6330: flag">acknowledge the token's <i>self-closing flag</i></a>.</p>
6331:
6332: <p>Otherwise, if the <a href="#insertion-mode">insertion mode</a> is not already
6333: "<a href="#parsing-main-inforeign" title="insertion mode: in foreign content">in foreign
6334: content</a>", let the <a href="#secondary-insertion-mode">secondary insertion mode</a> be
6335: the current <a href="#insertion-mode">insertion mode</a>, and then switch the
6336: <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-inforeign" title="insertion mode: in
6337: foreign content">in foreign content</a>".</p>
6338:
6339: </dd>
6340:
6341: <dt>A start <!--or end--> tag whose tag name is one of: "caption",
6342: "col", "colgroup", "frame", "head", "tbody", "td", "tfoot", "th",
6343: "thead", "tr"</dt>
6344: <!--<dt>An end tag whose tag name is one of: "area", "base",
6345: "basefont", "bgsound", "command", "embed", "hr", "iframe", "image",
6346: "img", "input", "isindex", "keygen", "link", "meta", "noembed",
1.589 mike 6347: "noframes", "param", "script", "select", "source", "style",
6348: "table", "textarea", "title", "wbr"</dt>-->
1.1 mike 6349: <!--<dt>An end tag whose tag name is "noscript", if the
6350: <span>scripting flag</span> is enabled</dt>-->
6351: <dd>
6352: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6353: <!-- end tags are commented out because since they can never end
6354: up on the stack anyway, the default end tag clause will
6355: automatically handle them. we don't want to have text in the spec
6356: that is just an optimisation, as that detracts from the spec
6357: itself -->
6358: </dd>
6359:
6360: <dt>Any other start tag</dt>
6361: <dd>
6362:
6363: <p><a href="#reconstruct-the-active-formatting-elements">Reconstruct the active formatting elements</a>, if
6364: any.</p>
6365:
6366: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6367:
6368: <p class="note">This element will be a <a href="#phrasing">phrasing</a>
6369: element.</p>
6370:
6371: </dd>
6372:
6373: <dt>Any other end tag</dt>
6374: <dd>
6375:
6376: <p>Run the following steps:</p>
6377:
6378: <ol><li><p>Initialize <var title="">node</var> to be the <a href="#current-node">current
6379: node</a> (the bottommost node of the stack).</p></li>
6380:
6381: <li><p>If <var title="">node</var> has the same tag name as
6382: the end tag token, then:</p>
6383:
6384: <ol><li><p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p></li>
6385:
6386: <li><p>If the tag name of the end tag token does not match
6387: the tag name of the <a href="#current-node">current node</a>, this is a
6388: <a href="#parse-error">parse error</a>.</p></li>
6389:
6390: <li><p>Pop all the nodes from the <a href="#current-node">current node</a> up
6391: to <var title="">node</var>, including <var title="">node</var>, then stop these steps.</p></li>
6392:
6393: </ol></li>
6394:
6395: <li><p>Otherwise, if <var title="">node</var> is in neither the
6396: <a href="#formatting">formatting</a> category nor the <a href="#phrasing">phrasing</a>
6397: category, then this is a <a href="#parse-error">parse error</a>; ignore the
6398: token, and abort these steps.</p></li>
6399:
6400: <li><p>Set <var title="">node</var> to the previous entry in the
6401: <a href="#stack-of-open-elements">stack of open elements</a>.</p></li>
6402:
6403: <li><p>Return to step 2.</p></li>
6404:
6405: </ol></dd>
6406:
1.614 mike 6407: </dl><h5 id="parsing-main-incdata"><span class="secno">9.2.5.11 </span>The "<dfn title="insertion mode: text">text</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6408:
6409: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-incdata" title="insertion
1.540 mike 6410: mode: text">text</a>", tokens must be handled as follows:</p>
1.1 mike 6411:
6412: <dl class="switch"><dt>A character token</dt>
6413: <dd>
6414:
6415: <p><a href="#insert-a-character" title="insert a character">Insert the token's
6416: character</a> into the <a href="#current-node">current node</a>.</p>
6417:
6418: </dd>
6419:
6420: <dt>An end-of-file token</dt>
6421: <dd>
6422:
6423: <!-- can't be the fragment case -->
6424: <p><a href="#parse-error">Parse error</a>.</p>
6425:
6426: <p>If the <a href="#current-node">current node</a> is a <code><a href="semantics.html#script">script</a></code>
1.484 mike 6427: element, mark the <code><a href="semantics.html#script">script</a></code> element as <a href="semantics.html#already-started">"already
6428: started"</a>.</p>
1.1 mike 6429:
6430: <p>Pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6431: elements</a>.</p>
6432:
6433: <p>Switch the <a href="#insertion-mode">insertion mode</a> to the <a href="#original-insertion-mode">original
6434: insertion mode</a> and reprocess the current token.</p>
6435:
6436: </dd>
6437:
6438: <dt>An end tag whose tag name is "script"</dt>
6439: <dd>
6440:
6441: <p>Let <var title="">script</var> be the <a href="#current-node">current node</a>
6442: (which will be a <code><a href="semantics.html#script">script</a></code> element).</p>
6443:
6444: <p>Pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6445: elements</a>.</p>
6446:
6447: <p>Switch the <a href="#insertion-mode">insertion mode</a> to the <a href="#original-insertion-mode">original
6448: insertion mode</a>.</p>
6449:
6450: <p>Let the <var title="">old insertion point</var> have the
6451: same value as the current <a href="#insertion-point">insertion point</a>. Let
6452: the <a href="#insertion-point">insertion point</a> be just before the <a href="#next-input-character">next
6453: input character</a>.</p>
6454:
6455: <p>Increment the parser's <a href="#script-nesting-level">script nesting level</a> by
6456: one.</p>
6457:
6458: <p><a href="semantics.html#running-a-script" title="running a script">Run</a> the <var title="">script</var>. This might cause some script to execute,
1.159 mike 6459: which might cause <a href="embedded-content-0.html#dom-document-write" title="dom-document-write">new characters
1.1 mike 6460: to be inserted into the tokenizer</a>, and might cause the
6461: tokenizer to output more tokens, resulting in a <a href="#nestedParsing">reentrant invocation of the parser</a>.</p>
6462:
6463: <p>Decrement the parser's <a href="#script-nesting-level">script nesting level</a> by
6464: one. If the parser's <a href="#script-nesting-level">script nesting level</a> is zero,
6465: then set the <a href="#parser-pause-flag">parser pause flag</a> to false.</p>
6466:
6467: <p>Let the <a href="#insertion-point">insertion point</a> have the value of the <var title="">old insertion point</var>. (In other words, restore the
6468: <a href="#insertion-point">insertion point</a> to its previous value. This value
6469: might be the "undefined" value.)</p>
6470:
6471: <p id="scriptTagParserResumes">At this stage, if there is a
1.484 mike 6472: <a href="semantics.html#pending-parsing-blocking-script">pending parsing-blocking script</a>, then:</p>
1.1 mike 6473:
6474: <dl class="switch"><dt>If the <a href="#script-nesting-level">script nesting level</a> is not zero:</dt>
6475:
6476: <dd>
6477:
6478: <p>Set the <a href="#parser-pause-flag">parser pause flag</a> to true, and abort the
6479: processing of any nested invocations of the tokenizer, yielding
6480: control back to the caller. (Tokenization will resume when the
6481: caller returns to the "outer" tree construction stage.)</p>
6482:
6483: <p class="note">The tree construction stage of this particular
6484: parser is <a href="#nestedParsing">being called reentrantly</a>,
1.159 mike 6485: say from a call to <code title="dom-document-write"><a href="embedded-content-0.html#dom-document-write">document.write()</a></code>.</p>
1.1 mike 6486:
6487: </dd>
6488:
6489:
6490: <dt>Otherwise:</dt>
6491:
6492: <dd>
6493:
6494: <p>Follow these steps:</p>
6495:
1.484 mike 6496: <ol><li><p>Let <var title="">the script</var> be the <a href="semantics.html#pending-parsing-blocking-script">pending
6497: parsing-blocking script</a>. There is no longer a <a href="semantics.html#pending-parsing-blocking-script">pending
6498: parsing-blocking script</a>.</p></li>
6499:
6500: <li><p>Block the <a href="#tokenization" title="tokenization">tokenizer</a>
6501: for this instance of the <a href="#html-parser">HTML parser</a>, such that
6502: the <a href="browsers.html#event-loop">event loop</a> will not run <a href="browsers.html#concept-task" title="concept-task">tasks</a> that invoke the <a href="#tokenization" title="tokenization">tokenizer</a>.</p></li>
6503:
6504: <li><p><a href="browsers.html#spin-the-event-loop">Spin the event loop</a> until there is no <a href="semantics.html#a-style-sheet-blocking-scripts" title="a style sheet blocking scripts">style sheet blocking
6505: scripts</a> and <var title="">the script</var>'s
6506: <a href="semantics.html#ready-to-be-parser-executed">"ready to be parser-executed"</a> flag is set.</p></li>
6507:
6508: <li><p>Unblock the <a href="#tokenization" title="tokenization">tokenizer</a>
6509: for this instance of the <a href="#html-parser">HTML parser</a>, such that
6510: <a href="browsers.html#concept-task" title="concept-task">tasks</a> that invoke the <a href="#tokenization" title="tokenization">tokenizer</a> can again be
6511: run.</p></li>
1.1 mike 6512:
6513: <li><p>Let the <a href="#insertion-point">insertion point</a> be just before the
6514: <a href="#next-input-character">next input character</a>.</p></li>
6515:
6516: <li><p>Increment the parser's <a href="#script-nesting-level">script nesting level</a>
6517: by one (it should be zero before this step, so this sets it to
6518: one).</p></li>
6519:
1.484 mike 6520: <li><p><a href="semantics.html#executing-a-script-block" title="executing a script block">Execute</a>
6521: <var title="">the script</var>.</p></li>
1.1 mike 6522:
6523: <li><p>Decrement the parser's <a href="#script-nesting-level">script nesting level</a>
6524: by one. If the parser's <a href="#script-nesting-level">script nesting level</a> is
6525: zero (which it always should be at this point), then set the
6526: <a href="#parser-pause-flag">parser pause flag</a> to false.</p>
6527:
6528: </li><li><p>Let the <a href="#insertion-point">insertion point</a> be undefined
6529: again.</p></li>
6530:
1.484 mike 6531: <li><p>If there is once again a <a href="semantics.html#pending-parsing-blocking-script">pending parsing-blocking
1.1 mike 6532: script</a>, then repeat these steps from step 1.</p></li>
6533:
6534: </ol></dd>
6535:
6536: </dl></dd>
6537:
6538: <dt>Any other end tag</dt>
6539: <dd>
6540:
6541: <p>Pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6542: elements</a>.</p>
6543:
6544: <p>Switch the <a href="#insertion-mode">insertion mode</a> to the <a href="#original-insertion-mode">original
6545: insertion mode</a>.</p>
6546:
6547: </dd>
6548:
1.614 mike 6549: </dl><h5 id="parsing-main-intable"><span class="secno">9.2.5.12 </span>The "<dfn title="insertion mode: in table">in table</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6550:
6551: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intable" title="insertion
6552: mode: in table">in table</a>", tokens must be handled as follows:</p>
6553:
6554: <dl class="switch"><dt>A character token</dt>
6555: <dd>
6556:
6557: <p>Let the <dfn id="pending-table-character-tokens"><var>pending table character tokens</var></dfn>
6558: be an empty list of tokens.</p>
6559:
6560: <p>Let the <a href="#original-insertion-mode">original insertion mode</a> be the current
6561: <a href="#insertion-mode">insertion mode</a>.</p>
6562:
6563: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intabletext" title="insertion mode: in table text">in table text</a>" and
6564: reprocess the token.</p>
6565:
6566: </dd>
6567:
6568: <dt>A comment token</dt>
6569: <dd>
6570: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
6571: node</a> with the <code title="">data</code> attribute set to
6572: the data given in the comment token.</p>
6573: </dd>
6574:
6575: <dt>A DOCTYPE token</dt>
6576: <dd>
6577: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6578: </dd>
6579:
6580: <dt>A start tag whose tag name is "caption"</dt>
6581: <dd>
6582:
6583: <p><a href="#clear-the-stack-back-to-a-table-context">Clear the stack back to a table context</a>. (See
6584: below.)</p>
6585:
6586: <p>Insert a marker at the end of the <a href="#list-of-active-formatting-elements">list of active
6587: formatting elements</a>.</p>
6588:
6589: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, then
6590: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incaption" title="insertion mode: in caption">in caption</a>".</p>
6591:
6592: </dd>
6593:
6594: <dt>A start tag whose tag name is "colgroup"</dt>
6595: <dd>
6596:
6597: <p><a href="#clear-the-stack-back-to-a-table-context">Clear the stack back to a table context</a>. (See
6598: below.)</p>
6599:
6600: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, then
6601: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-incolgroup" title="insertion mode: in column group">in column
6602: group</a>".</p>
6603:
6604: </dd>
6605:
6606: <dt>A start tag whose tag name is "col"</dt>
6607: <dd>
6608: <p>Act as if a start tag token with the tag name "colgroup"
6609: had been seen, then reprocess the current token.</p>
6610: </dd>
6611:
6612: <dt>A start tag whose tag name is one of: "tbody", "tfoot", "thead"</dt>
6613: <dd>
6614:
6615: <p><a href="#clear-the-stack-back-to-a-table-context">Clear the stack back to a table context</a>. (See
6616: below.)</p>
6617:
6618: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, then
6619: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table
6620: body</a>".</p>
6621:
6622: </dd>
6623:
6624: <dt>A start tag whose tag name is one of: "td", "th", "tr"</dt>
6625: <dd>
6626: <p>Act as if a start tag token with the tag name "tbody" had
6627: been seen, then reprocess the current token.</p>
6628: </dd>
6629:
6630: <dt>A start tag whose tag name is "table"</dt>
6631: <dd>
6632:
6633: <p><a href="#parse-error">Parse error</a>. Act as if an end tag token with
6634: the tag name "table" had been seen, then, if that token wasn't
6635: ignored, reprocess the current token.</p>
6636:
6637: <p class="note">The fake end tag token here can only be
6638: ignored in the <a href="#fragment-case">fragment case</a>.</p>
6639:
6640: </dd>
6641:
6642: <dt>An end tag whose tag name is "table"</dt>
6643: <dd>
6644:
6645: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
6646: scope</a> with the same tag name as the token, this is a
6647: <a href="#parse-error">parse error</a>. Ignore the token. (<a href="#fragment-case">fragment
6648: case</a>)</p>
6649:
6650: <p>Otherwise:</p>
6651:
6652: <p>Pop elements from this stack until a <code><a href="tabular-data.html#the-table-element">table</a></code>
6653: element has been popped from the stack.</p>
6654:
6655: <p><a href="#reset-the-insertion-mode-appropriately">Reset the insertion mode appropriately</a>.</p>
6656:
6657: </dd>
6658:
6659: <dt>An end tag whose tag name is one of: "body", "caption",
6660: "col", "colgroup", "html", "tbody", "td", "tfoot", "th",
6661: "thead", "tr"</dt>
6662: <dd>
6663: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6664: </dd>
6665:
6666: <dt>A start tag whose tag name is one of: "style", "script"</dt>
6667: <dd>
6668:
6669: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
6670: mode</a>.</p>
6671:
6672: </dd>
6673:
6674: <dt>A start tag whose tag name is "input"</dt>
6675: <dd>
6676:
6677: <p>If the token does not have an attribute with the name "type",
6678: or if it does, but that attribute's value is not an <a href="infrastructure.html#ascii-case-insensitive">ASCII
6679: case-insensitive</a> match for the string "<code title="">hidden</code>", then: act as described in the "anything
6680: else" entry below.</p>
6681:
6682: <p>Otherwise:</p>
6683:
6684: <p><a href="#parse-error">Parse error</a>.</p>
6685:
6686: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6687:
6688: <p>Pop that <code><a href="forms.html#the-input-element">input</a></code> element off the <a href="#stack-of-open-elements">stack of
6689: open elements</a>.</p>
6690:
6691: </dd>
6692:
1.603 mike 6693: <dt>A start tag whose tag name is "form"</dt>
6694: <dd>
6695:
6696: <p><a href="#parse-error">Parse error</a>.</p>
6697:
1.717 mike 6698: <p>If the <a href="#form-element-pointer"><code title="form">form</code> element
6699: pointer</a> is not null, ignore the token.</p>
6700:
6701: <p>Otherwise:</p>
6702:
1.603 mike 6703: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
6704:
1.637 mike 6705: <p>Pop that <code><a href="forms.html#the-form-element">form</a></code> element off the <a href="#stack-of-open-elements">stack of
1.603 mike 6706: open elements</a>.</p>
6707:
6708: </dd>
6709:
1.721 ! mike 6710: <!-- "form" end tag falls through to in-body, which does the right thing -->
1.717 mike 6711:
1.1 mike 6712: <dt>An end-of-file token</dt>
6713: <dd>
6714:
6715: <p>If the <a href="#current-node">current node</a> is not the root
1.159 mike 6716: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 6717: error</a>.</p>
6718:
6719: <p class="note">It can only be the <a href="#current-node">current node</a> in
6720: the <a href="#fragment-case">fragment case</a>.</p>
6721:
6722: <p><a href="#stop-parsing">Stop parsing</a>.</p>
6723:
6724: </dd>
6725:
6726: <dt>Anything else</dt>
6727: <dd>
6728:
6729: <p><a href="#parse-error">Parse error</a>. Process the token <a href="#using-the-rules-for">using the
6730: rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in
6731: body</a>" <a href="#insertion-mode">insertion mode</a>, except that if the
6732: <a href="#current-node">current node</a> is a <code><a href="tabular-data.html#the-table-element">table</a></code>,
6733: <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>, <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>, <code><a href="tabular-data.html#the-thead-element">thead</a></code>, or
6734: <code><a href="tabular-data.html#the-tr-element">tr</a></code> element, then, whenever a node would be inserted
6735: into the <a href="#current-node">current node</a>, it must instead be <a href="#foster-parent" title="foster parent">foster parented</a>.</p>
6736:
6737: </dd>
6738:
6739: </dl><p>When the steps above require the UA to <dfn id="clear-the-stack-back-to-a-table-context">clear the stack
6740: back to a table context</dfn>, it means that the UA must, while
6741: the <a href="#current-node">current node</a> is not a <code><a href="tabular-data.html#the-table-element">table</a></code>
1.159 mike 6742: element or an <code><a href="semantics.html#the-html-element-0">html</a></code> element, pop elements from the
1.1 mike 6743: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
6744:
6745: <p class="note">The <a href="#current-node">current node</a> being an
1.159 mike 6746: <code><a href="semantics.html#the-html-element-0">html</a></code> element after this process is a <a href="#fragment-case">fragment
1.1 mike 6747: case</a>.</p>
6748:
6749:
6750:
1.614 mike 6751: <h5 id="parsing-main-intabletext"><span class="secno">9.2.5.13 </span>The "<dfn title="insertion mode: in table text">in table text</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6752:
6753: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intabletext" title="insertion
6754: mode: in table text">in table text</a>", tokens must be handled
6755: as follows:</p>
6756:
6757: <dl class="switch"><dt>A character token</dt>
6758: <dd>
6759:
6760: <p>Append the character token to the <var><a href="#pending-table-character-tokens">pending table character
6761: tokens</a></var> list.</p>
6762:
6763: </dd>
6764:
6765:
6766: <dt>Anything else</dt>
6767: <dd>
6768:
6769: <p>If any of the tokens in the <var><a href="#pending-table-character-tokens">pending table character
6770: tokens</a></var> list are character tokens that are not one of U+0009
6771: CHARACTER TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED
6772: (FF), <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE, then
6773: reprocess those character tokens using the rules given in the
6774: "anything else" entry in the <a href="#parsing-main-intable" title="insertion mode: in
6775: table">in table</a>" insertion mode.</p>
6776:
6777: <p>Otherwise, <a href="#insert-a-character" title="insert a character">insert the
6778: characters</a> given by the <var><a href="#pending-table-character-tokens">pending table character
6779: tokens</a></var> list into the <a href="#current-node">current node</a>.</p>
6780:
6781: <p>Switch the <a href="#insertion-mode">insertion mode</a> to the <a href="#original-insertion-mode">original
6782: insertion mode</a> and reprocess the token.</p>
6783:
6784: </dd>
6785:
1.614 mike 6786: </dl><h5 id="parsing-main-incaption"><span class="secno">9.2.5.14 </span>The "<dfn title="insertion mode: in caption">in caption</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6787:
6788: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-incaption" title="insertion
6789: mode: in caption">in caption</a>", tokens must be handled as follows:</p>
6790:
6791: <dl class="switch"><dt>An end tag whose tag name is "caption"</dt>
6792: <dd>
6793:
6794: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
6795: scope</a> with the same tag name as the token, this is a
6796: <a href="#parse-error">parse error</a>. Ignore the token. (<a href="#fragment-case">fragment
6797: case</a>)</p>
6798:
6799: <p>Otherwise:</p>
6800:
6801: <p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p>
6802:
6803: <p>Now, if the <a href="#current-node">current node</a> is not a
6804: <code><a href="tabular-data.html#the-caption-element">caption</a></code> element, then this is a <a href="#parse-error">parse
6805: error</a>.</p>
6806:
6807: <p>Pop elements from this stack until a <code><a href="tabular-data.html#the-caption-element">caption</a></code>
6808: element has been popped from the stack.</p>
6809:
6810: <p><a href="#clear-the-list-of-active-formatting-elements-up-to-the-last-marker">Clear the list of active formatting elements up to
6811: the last marker</a>.</p>
6812:
6813: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>".</p>
6814:
6815: </dd>
6816:
6817: <dt>A start tag whose tag name is one of: "caption", "col",
6818: "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"</dt>
6819: <dt>An end tag whose tag name is "table"</dt>
6820: <dd>
6821:
6822: <p><a href="#parse-error">Parse error</a>. Act as if an end tag with the tag
6823: name "caption" had been seen, then, if that token wasn't
6824: ignored, reprocess the current token.</p>
6825:
6826: <p class="note">The fake end tag token here can only be
6827: ignored in the <a href="#fragment-case">fragment case</a>.</p>
6828:
6829: </dd>
6830:
6831: <dt>An end tag whose tag name is one of: "body", "col",
6832: "colgroup", "html", "tbody", "td", "tfoot", "th", "thead",
6833: "tr"</dt>
6834: <dd>
6835: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6836: </dd>
6837:
6838: <dt>Anything else</dt>
6839: <dd>
6840: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
6841: mode</a>.</p>
6842: </dd>
6843:
1.614 mike 6844: </dl><h5 id="parsing-main-incolgroup"><span class="secno">9.2.5.15 </span>The "<dfn title="insertion mode: in column group">in column group</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6845:
6846: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-incolgroup" title="insertion
6847: mode: in column group">in column group</a>", tokens must be handled as follows:</p>
6848:
6849: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
6850: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
6851: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
6852: <dd>
6853: <p><a href="#insert-a-character" title="insert a character">Insert the character</a> into
6854: the <a href="#current-node">current node</a>.</p>
6855: </dd>
6856:
6857: <dt>A comment token</dt>
6858: <dd>
6859: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
6860: node</a> with the <code title="">data</code> attribute set to
6861: the data given in the comment token.</p>
6862: </dd>
6863:
6864: <dt>A DOCTYPE token</dt>
6865: <dd>
6866: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6867: </dd>
6868:
6869: <dt>A start tag whose tag name is "html"</dt>
6870: <dd>
6871: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
6872: mode</a>.</p>
6873: </dd>
6874:
6875: <dt>A start tag whose tag name is "col"</dt>
6876: <dd>
6877:
6878: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token. Immediately
6879: pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
6880: elements</a>.</p>
6881:
6882: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
6883: token's <i>self-closing flag</i></a>, if it is set.</p>
6884:
6885: </dd>
6886:
6887: <dt>An end tag whose tag name is "colgroup"</dt>
6888: <dd>
6889:
6890: <p>If the <a href="#current-node">current node</a> is the root
1.159 mike 6891: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 6892: error</a>; ignore the token. (<a href="#fragment-case">fragment
6893: case</a>)</p>
6894:
6895: <p>Otherwise, pop the <a href="#current-node">current node</a> (which will be
6896: a <code><a href="tabular-data.html#the-colgroup-element">colgroup</a></code> element) from the <a href="#stack-of-open-elements">stack of open
6897: elements</a>. Switch the <a href="#insertion-mode">insertion mode</a> to
6898: "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>".</p>
6899:
6900: </dd>
6901:
6902: <dt>An end tag whose tag name is "col"</dt>
6903: <dd>
6904: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
6905: </dd>
6906:
6907: <dt>An end-of-file token</dt>
6908: <dd>
6909:
1.159 mike 6910: <p>If the <a href="#current-node">current node</a> is the root <code><a href="semantics.html#the-html-element-0">html</a></code>
1.1 mike 6911: element, then <a href="#stop-parsing">stop parsing</a>. (<a href="#fragment-case">fragment
6912: case</a>)</p>
6913:
6914: <p>Otherwise, act as described in the "anything else" entry
6915: below.</p>
6916:
6917: </dd>
6918:
6919: <dt>Anything else</dt>
6920: <dd>
6921:
6922: <p>Act as if an end tag with the tag name "colgroup" had been
6923: seen, and then, if that token wasn't ignored, reprocess the
6924: current token.</p>
6925:
6926: <p class="note">The fake end tag token here can only be
6927: ignored in the <a href="#fragment-case">fragment case</a>.</p>
6928:
6929: </dd>
6930:
1.614 mike 6931: </dl><h5 id="parsing-main-intbody"><span class="secno">9.2.5.16 </span>The "<dfn title="insertion mode: in table body">in table body</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 6932:
6933: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intbody" title="insertion
6934: mode: in table body">in table body</a>", tokens must be handled as follows:</p>
6935:
6936: <dl class="switch"><dt>A start tag whose tag name is "tr"</dt>
6937: <dd>
6938:
6939: <p><a href="#clear-the-stack-back-to-a-table-body-context">Clear the stack back to a table body
6940: context</a>. (See below.)</p>
6941:
6942: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, then switch
6943: the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intr" title="insertion mode:
6944: in row">in row</a>".</p>
6945:
6946: </dd>
6947:
6948: <dt>A start tag whose tag name is one of: "th", "td"</dt>
6949: <dd>
6950: <p><a href="#parse-error">Parse error</a>. Act as if a start tag with
6951: the tag name "tr" had been seen, then reprocess the current
6952: token.</p>
6953: </dd>
6954:
6955: <dt>An end tag whose tag name is one of: "tbody", "tfoot",
6956: "thead"</dt>
6957: <dd>
6958:
6959: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
6960: scope</a> with the same tag name as the token, this is a
6961: <a href="#parse-error">parse error</a>. Ignore the token.</p>
6962:
6963: <p>Otherwise:</p>
6964:
6965: <p><a href="#clear-the-stack-back-to-a-table-body-context">Clear the stack back to a table body
6966: context</a>. (See below.)</p>
6967:
6968: <p>Pop the <a href="#current-node">current node</a> from the <a href="#stack-of-open-elements">stack of
6969: open elements</a>. Switch the <a href="#insertion-mode">insertion mode</a>
6970: to "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>".</p>
6971:
6972: </dd>
6973:
6974: <dt>A start tag whose tag name is one of: "caption", "col",
6975: "colgroup", "tbody", "tfoot", "thead"</dt>
6976: <dt>An end tag whose tag name is "table"</dt>
6977: <dd>
6978:
6979: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have a
6980: <code>tbody</code>, <code>thead</code>, or <code>tfoot</code>
6981: element in table scope</a>, this is a <a href="#parse-error">parse
6982: error</a>. Ignore the token. (<a href="#fragment-case">fragment
6983: case</a>)</p>
6984:
6985: <p>Otherwise:</p>
6986:
6987: <p><a href="#clear-the-stack-back-to-a-table-body-context">Clear the stack back to a table body
6988: context</a>. (See below.)</p>
6989:
6990: <p>Act as if an end tag with the same tag name as the
6991: <a href="#current-node">current node</a> ("tbody", "tfoot", or "thead") had
6992: been seen, then reprocess the current token.</p>
6993:
6994: </dd>
6995:
6996: <dt>An end tag whose tag name is one of: "body", "caption",
6997: "col", "colgroup", "html", "td", "th", "tr"</dt>
6998: <dd>
6999: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7000: </dd>
7001:
7002: <dt>Anything else</dt>
7003: <dd>
7004: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>" <a href="#insertion-mode">insertion
7005: mode</a>.</p>
7006: </dd>
7007:
7008: </dl><p>When the steps above require the UA to <dfn id="clear-the-stack-back-to-a-table-body-context">clear the stack
7009: back to a table body context</dfn>, it means that the UA must,
7010: while the <a href="#current-node">current node</a> is not a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>,
1.159 mike 7011: <code><a href="tabular-data.html#the-tfoot-element">tfoot</a></code>, <code><a href="tabular-data.html#the-thead-element">thead</a></code>, or <code><a href="semantics.html#the-html-element-0">html</a></code>
1.1 mike 7012: element, pop elements from the <a href="#stack-of-open-elements">stack of open
7013: elements</a>.</p>
7014:
7015: <p class="note">The <a href="#current-node">current node</a> being an
1.159 mike 7016: <code><a href="semantics.html#the-html-element-0">html</a></code> element after this process is a <a href="#fragment-case">fragment
1.1 mike 7017: case</a>.</p>
7018:
7019:
1.614 mike 7020: <h5 id="parsing-main-intr"><span class="secno">9.2.5.17 </span>The "<dfn title="insertion mode: in row">in row</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7021:
7022: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intr" title="insertion
7023: mode: in row">in row</a>", tokens must be handled as follows:</p>
7024:
7025: <dl class="switch"><dt>A start tag whose tag name is one of: "th", "td"</dt>
7026: <dd>
7027:
7028: <p><a href="#clear-the-stack-back-to-a-table-row-context">Clear the stack back to a table row
7029: context</a>. (See below.)</p>
7030:
7031: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token, then switch
7032: the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intd" title="insertion mode:
7033: in cell">in cell</a>".</p>
7034:
7035: <p>Insert a marker at the end of the <a href="#list-of-active-formatting-elements">list of active
7036: formatting elements</a>.</p>
7037:
7038: </dd>
7039:
7040: <dt>An end tag whose tag name is "tr"</dt>
7041: <dd>
7042:
7043: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
7044: scope</a> with the same tag name as the token, this is a
7045: <a href="#parse-error">parse error</a>. Ignore the token. (<a href="#fragment-case">fragment
7046: case</a>)</p>
7047:
7048: <p>Otherwise:</p>
7049:
7050: <p><a href="#clear-the-stack-back-to-a-table-row-context">Clear the stack back to a table row
7051: context</a>. (See below.)</p>
7052:
7053: <p>Pop the <a href="#current-node">current node</a> (which will be a
7054: <code><a href="tabular-data.html#the-tr-element">tr</a></code> element) from the <a href="#stack-of-open-elements">stack of open
7055: elements</a>. Switch the <a href="#insertion-mode">insertion mode</a> to
7056: "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table
7057: body</a>".</p>
7058:
7059: </dd>
7060:
7061: <dt>A start tag whose tag name is one of: "caption", "col",
7062: "colgroup", "tbody", "tfoot", "thead", "tr"</dt>
7063: <dt>An end tag whose tag name is "table"</dt>
7064: <dd>
7065:
7066: <p>Act as if an end tag with the tag name "tr" had been seen,
7067: then, if that token wasn't ignored, reprocess the current
7068: token.</p>
7069:
7070: <p class="note">The fake end tag token here can only be
7071: ignored in the <a href="#fragment-case">fragment case</a>.</p>
7072:
7073: </dd>
7074:
7075: <dt>An end tag whose tag name is one of: "tbody", "tfoot",
7076: "thead"</dt>
7077: <dd>
7078:
7079: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
7080: scope</a> with the same tag name as the token, this is a
7081: <a href="#parse-error">parse error</a>. Ignore the token.</p>
7082:
7083: <p>Otherwise, act as if an end tag with the tag name "tr" had
7084: been seen, then reprocess the current token.</p>
7085:
7086: </dd>
7087:
7088: <dt>An end tag whose tag name is one of: "body", "caption",
7089: "col", "colgroup", "html", "td", "th"</dt>
7090: <dd>
7091: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7092: </dd>
7093:
7094: <dt>Anything else</dt>
7095: <dd>
7096: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>" <a href="#insertion-mode">insertion
7097: mode</a>.</p>
7098: </dd>
7099:
7100: </dl><p>When the steps above require the UA to <dfn id="clear-the-stack-back-to-a-table-row-context">clear the stack
7101: back to a table row context</dfn>, it means that the UA must,
7102: while the <a href="#current-node">current node</a> is not a <code><a href="tabular-data.html#the-tr-element">tr</a></code>
1.159 mike 7103: element or an <code><a href="semantics.html#the-html-element-0">html</a></code> element, pop elements from the
1.1 mike 7104: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
7105:
7106: <p class="note">The <a href="#current-node">current node</a> being an
1.159 mike 7107: <code><a href="semantics.html#the-html-element-0">html</a></code> element after this process is a <a href="#fragment-case">fragment
1.1 mike 7108: case</a>.</p>
7109:
7110:
1.614 mike 7111: <h5 id="parsing-main-intd"><span class="secno">9.2.5.18 </span>The "<dfn title="insertion mode: in cell">in cell</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7112:
7113: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intd" title="insertion
7114: mode: in cell">in cell</a>", tokens must be handled as follows:</p>
7115:
7116: <dl class="switch"><dt>An end tag whose tag name is one of: "td", "th"</dt>
7117: <dd>
7118:
7119: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
7120: scope</a> with the same tag name as that of the token, then
7121: this is a <a href="#parse-error">parse error</a> and the token must be
7122: ignored.</p>
7123:
7124: <p>Otherwise:</p>
7125:
7126: <p><a href="#generate-implied-end-tags">Generate implied end tags</a>.</p>
7127:
7128: <p>Now, if the <a href="#current-node">current node</a> is not an element
7129: with the same tag name as the token, then this is a
7130: <a href="#parse-error">parse error</a>.</p>
7131:
7132: <p>Pop elements from this stack until an element with the same
7133: tag name as the token has been popped from the stack.</p>
7134:
7135: <p><a href="#clear-the-list-of-active-formatting-elements-up-to-the-last-marker">Clear the list of active formatting elements up to
7136: the last marker</a>.</p>
7137:
7138: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-intr" title="insertion mode: in row">in row</a>". (The
7139: <a href="#current-node">current node</a> will be a <code><a href="tabular-data.html#the-tr-element">tr</a></code> element at
7140: this point.)</p>
7141:
7142: </dd>
7143:
7144: <dt>A start tag whose tag name is one of: "caption", "col",
7145: "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"</dt>
7146: <dd>
7147:
7148: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does
7149: <em>not</em> <a href="#has-an-element-in-table-scope" title="has an element in table scope">have
7150: a <code>td</code> or <code>th</code> element in table
7151: scope</a>, then this is a <a href="#parse-error">parse error</a>; ignore
7152: the token. (<a href="#fragment-case">fragment case</a>)</p>
7153:
7154: <p>Otherwise, <a href="#close-the-cell">close the cell</a> (see below) and
7155: reprocess the current token.</p>
7156:
7157: </dd>
7158:
7159: <dt>An end tag whose tag name is one of: "body", "caption",
7160: "col", "colgroup", "html"</dt>
7161: <dd>
7162: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7163: </dd>
7164:
7165: <dt>An end tag whose tag name is one of: "table", "tbody",
7166: "tfoot", "thead", "tr"</dt>
7167: <dd>
7168:
7169: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
7170: scope</a> with the same tag name as that of the token
7171: (which can only happen for "tbody", "tfoot" and "thead", or,
7172: in the <a href="#fragment-case">fragment case</a>), then this is a <a href="#parse-error">parse
7173: error</a> and the token must be ignored.</p>
7174:
7175: <p>Otherwise, <a href="#close-the-cell">close the cell</a> (see below) and
7176: reprocess the current token.</p>
7177:
7178: </dd>
7179:
7180: <dt>Anything else</dt>
7181: <dd>
7182: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7183: mode</a>.</p>
7184: </dd>
7185:
7186: </dl><p>Where the steps above say to <dfn id="close-the-cell">close the cell</dfn>, they
7187: mean to run the following algorithm:</p>
7188:
7189: <ol><li><p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-table-scope" title="has an element in table scope">has a <code>td</code>
7190: element in table scope</a>, then act as if an end tag token
7191: with the tag name "td" had been seen.</p></li>
7192:
7193: <li><p>Otherwise, the <a href="#stack-of-open-elements">stack of open elements</a> will
7194: <a href="#has-an-element-in-table-scope" title="has an element in table scope">have a
7195: <code>th</code> element in table scope</a>; act as if an end
7196: tag token with the tag name "th" had been seen.</p></li>
7197:
7198: </ol><p class="note">The <a href="#stack-of-open-elements">stack of open elements</a> cannot
7199: have both a <code><a href="tabular-data.html#the-td-element">td</a></code> and a <code><a href="tabular-data.html#the-th-element">th</a></code> element <a href="#has-an-element-in-table-scope" title="has an element in table scope">in table scope</a> at
7200: the same time, nor can it have neither when the <a href="#insertion-mode">insertion
7201: mode</a> is "<a href="#parsing-main-intd" title="insertion mode: in cell">in
7202: cell</a>".</p>
7203:
7204:
1.614 mike 7205: <h5 id="parsing-main-inselect"><span class="secno">9.2.5.19 </span>The "<dfn title="insertion mode: in select">in select</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7206:
7207: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inselect" title="insertion
7208: mode: in select">in select</a>", tokens must be handled as follows:</p>
7209:
7210: <dl class="switch"><dt>A character token</dt>
7211: <dd>
7212: <p><a href="#insert-a-character" title="insert a character">Insert the token's
7213: character</a> into the <a href="#current-node">current node</a>.</p>
7214: </dd>
7215:
7216: <dt>A comment token</dt>
7217: <dd>
7218: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
7219: node</a> with the <code title="">data</code> attribute set to
7220: the data given in the comment token.</p>
7221: </dd>
7222:
7223: <dt>A DOCTYPE token</dt>
7224: <dd>
7225: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7226: </dd>
7227:
7228: <dt>A start tag whose tag name is "html"</dt>
7229: <dd>
7230: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7231: mode</a>.</p>
7232: </dd>
7233:
7234: <dt>A start tag whose tag name is "option"</dt>
7235: <dd>
7236:
7237: <p>If the <a href="#current-node">current node</a> is an <code><a href="forms.html#the-option-element">option</a></code>
7238: element, act as if an end tag with the tag name "option" had
7239: been seen.</p>
7240:
7241: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
7242:
7243: </dd>
7244:
7245: <dt>A start tag whose tag name is "optgroup"</dt>
7246: <dd>
7247:
7248: <p>If the <a href="#current-node">current node</a> is an <code><a href="forms.html#the-option-element">option</a></code>
7249: element, act as if an end tag with the tag name "option" had
7250: been seen.</p>
7251:
7252: <p>If the <a href="#current-node">current node</a> is an
7253: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, act as if an end tag with the
7254: tag name "optgroup" had been seen.</p>
7255:
7256: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
7257:
7258: </dd>
7259:
7260: <dt>An end tag whose tag name is "optgroup"</dt>
7261: <dd>
7262:
7263: <p>First, if the <a href="#current-node">current node</a> is an
7264: <code><a href="forms.html#the-option-element">option</a></code> element, and the node immediately before
7265: it in the <a href="#stack-of-open-elements">stack of open elements</a> is an
7266: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, then act as if an end tag with
7267: the tag name "option" had been seen.</p>
7268:
7269: <p>If the <a href="#current-node">current node</a> is an
7270: <code><a href="forms.html#the-optgroup-element">optgroup</a></code> element, then pop that node from the
7271: <a href="#stack-of-open-elements">stack of open elements</a>. Otherwise, this is a
7272: <a href="#parse-error">parse error</a>; ignore the token.</p>
7273:
7274: </dd>
7275:
7276: <dt>An end tag whose tag name is "option"</dt>
7277: <dd>
7278:
7279: <p>If the <a href="#current-node">current node</a> is an <code><a href="forms.html#the-option-element">option</a></code>
7280: element, then pop that node from the <a href="#stack-of-open-elements">stack of open
7281: elements</a>. Otherwise, this is a <a href="#parse-error">parse
7282: error</a>; ignore the token.</p>
7283:
7284: </dd>
7285:
7286: <dt>An end tag whose tag name is "select"</dt>
7287: <dd>
7288:
7289: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have an element in table
7290: scope</a> with the same tag name as the token, this is a
7291: <a href="#parse-error">parse error</a>. Ignore the token. (<a href="#fragment-case">fragment
7292: case</a>)</p>
7293:
7294: <p>Otherwise:</p>
7295:
7296: <p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a>
7297: until a <code><a href="forms.html#the-select-element">select</a></code> element has been popped from the
7298: stack.</p>
7299:
7300: <p><a href="#reset-the-insertion-mode-appropriately">Reset the insertion mode appropriately</a>.</p>
7301:
7302: </dd>
7303:
7304: <dt>A start tag whose tag name is "select"</dt>
7305: <dd>
7306:
7307: <p><a href="#parse-error">Parse error</a>. Act as if the token had been
7308: an end tag with the tag name "select" instead.</p>
7309:
7310: </dd>
7311:
7312: <dt>A start tag whose tag name is one of: "input", "keygen", "textarea"</dt>
7313: <dd>
1.73 mike 7314:
7315: <p><a href="#parse-error">Parse error</a>.</p>
7316:
1.124 mike 7317: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> does not <a href="#has-an-element-in-table-scope" title="has an element in table scope">have a <code>select</code>
7318: element in table scope</a>, ignore the token. (<a href="#fragment-case">fragment
7319: case</a>)</p>
1.73 mike 7320:
7321: <p>Otherwise, act as if an end tag with the tag name "select" had
7322: been seen, and reprocess the token.</p>
7323:
1.1 mike 7324: </dd>
7325:
7326: <dt>A start tag token whose tag name is "script"</dt>
7327: <dd>
7328: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
7329: mode</a>.</p>
7330: </dd>
7331:
7332: <dt>An end-of-file token</dt>
7333: <dd>
7334:
7335: <p>If the <a href="#current-node">current node</a> is not the root
1.159 mike 7336: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 7337: error</a>.</p>
7338:
7339: <p class="note">It can only be the <a href="#current-node">current node</a> in
7340: the <a href="#fragment-case">fragment case</a>.</p>
7341:
7342: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7343:
7344: </dd>
7345:
7346: <dt>Anything else</dt>
7347: <dd>
7348: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7349: </dd>
7350:
1.614 mike 7351: </dl><h5 id="parsing-main-inselectintable"><span class="secno">9.2.5.20 </span>The "<dfn title="insertion mode: in select in table">in select in table</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7352:
7353: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inselectintable" title="insertion
7354: mode: in select in table">in select in table</a>", tokens must be handled as follows:</p>
7355:
7356: <dl class="switch"><dt>A start tag whose tag name is one of: "caption", "table",
7357: "tbody", "tfoot", "thead", "tr", "td", "th"</dt>
7358: <dd>
7359: <p><a href="#parse-error">Parse error</a>. Act as if an end tag with the tag
7360: name "select" had been seen, and reprocess the token.</p>
7361: </dd>
7362:
7363: <dt>An end tag whose tag name is one of: "caption", "table",
7364: "tbody", "tfoot", "thead", "tr", "td", "th"</dt>
7365: <dd>
7366:
7367: <p><a href="#parse-error">Parse error</a>.</p>
7368:
7369: <p>If the <a href="#stack-of-open-elements">stack of open elements</a> <a href="#has-an-element-in-table-scope">has an
7370: element in table scope</a> with the same tag name as that
7371: of the token, then act as if an end tag with the tag name
7372: "select" had been seen, and reprocess the token. Otherwise,
7373: ignore the token.</p>
7374:
7375: </dd>
7376:
7377: <dt>Anything else</dt>
7378: <dd>
7379: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inselect" title="insertion mode: in select">in select</a>" <a href="#insertion-mode">insertion
7380: mode</a>.</p>
7381: </dd>
7382:
1.614 mike 7383: </dl><h5 id="parsing-main-inforeign"><span class="secno">9.2.5.21 </span>The "<dfn title="insertion mode: in foreign content">in foreign content</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7384:
7385: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inforeign" title="insertion
7386: mode: in foreign content">in foreign content</a>", tokens must be
7387: handled as follows:</p>
7388:
7389: <dl class="switch"><dt>A character token</dt>
7390: <dd>
7391:
7392: <p><a href="#insert-a-character" title="insert a character">Insert the token's
7393: character</a> into the <a href="#current-node">current node</a>.</p>
7394:
7395: <p>If the token is not one of U+0009 CHARACTER TABULATION, U+000A
7396: LINE FEED (LF), U+000C FORM FEED (FF), <!--U+000D CARRIAGE RETURN
7397: (CR),--> or U+0020 SPACE, then set the <a href="#frameset-ok-flag">frameset-ok
7398: flag</a> to "not ok".</p>
7399:
7400: </dd>
7401:
7402: <dt>A comment token</dt>
7403: <dd>
7404: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
7405: node</a> with the <code title="">data</code> attribute set to
7406: the data given in the comment token.</p>
7407: </dd>
7408:
7409: <dt>A DOCTYPE token</dt>
7410: <dd>
7411: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7412: </dd>
7413:
7414: <dt>An end tag whose tag name is "script", if the <a href="#current-node">current node</a> is a <code title="">script</code> element in the <a href="#svg-namespace">SVG namespace</a>.</dt>
7415: <dd>
7416:
7417: <p>Pop the <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
7418: elements</a>.</p>
7419:
7420: <p>Let the <var title="">old insertion point</var> have the
7421: same value as the current <a href="#insertion-point">insertion point</a>. Let
7422: the <a href="#insertion-point">insertion point</a> be just before the <a href="#next-input-character">next
7423: input character</a>.</p>
7424:
7425: <p>Increment the parser's <a href="#script-nesting-level">script nesting level</a> by
7426: one. Set the <a href="#parser-pause-flag">parser pause flag</a> to true.</p>
7427:
7428: <p><a href="http://www.w3.org/TR/SVGMobile12/script.html#ScriptContentProcessing">Process
7429: the <code title="">script</code> element</a> according to the SVG
1.187 mike 7430: rules, if the user agent supports SVG. <a href="references.html#refsSVG">[SVG]</a></p>
1.1 mike 7431:
1.159 mike 7432: <p class="note">Even if this causes <a href="embedded-content-0.html#dom-document-write" title="dom-document-write">new characters to be inserted into the
1.1 mike 7433: tokenizer</a>, the parser will not be executed reentrantly,
7434: since the <a href="#parser-pause-flag">parser pause flag</a> is true.</p>
7435:
7436: <p>Decrement the parser's <a href="#script-nesting-level">script nesting level</a> by
7437: one. If the parser's <a href="#script-nesting-level">script nesting level</a> is zero,
7438: then set the <a href="#parser-pause-flag">parser pause flag</a> to false.</p>
7439:
7440: <p>Let the <a href="#insertion-point">insertion point</a> have the value of the <var title="">old insertion point</var>. (In other words, restore the
7441: <a href="#insertion-point">insertion point</a> to its previous value. This value
7442: might be the "undefined" value.)</p>
7443:
7444: </dd>
7445:
7446: <dt>A start tag whose tag name is neither "mglyph" nor "malignmark", if the <a href="#current-node">current node</a> is an <code title="">mi</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7447: <dt>A start tag whose tag name is neither "mglyph" nor "malignmark", if the <a href="#current-node">current node</a> is an <code title="">mo</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7448: <dt>A start tag whose tag name is neither "mglyph" nor "malignmark", if the <a href="#current-node">current node</a> is an <code title="">mn</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7449: <dt>A start tag whose tag name is neither "mglyph" nor "malignmark", if the <a href="#current-node">current node</a> is an <code title="">ms</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7450: <dt>A start tag whose tag name is neither "mglyph" nor "malignmark", if the <a href="#current-node">current node</a> is an <code title="">mtext</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7451: <dt>A start tag whose tag name is "svg", if the <a href="#current-node">current node</a> is an <code title="">annotation-xml</code> element in the <a href="#mathml-namespace">MathML namespace</a>.</dt>
7452: <dt>A start tag, if the <a href="#current-node">current node</a> is a <code title="">foreignObject</code> element in the <a href="#svg-namespace">SVG namespace</a>.</dt>
7453: <dt>A start tag, if the <a href="#current-node">current node</a> is a <code title="">desc</code> element in the <a href="#svg-namespace">SVG namespace</a>.</dt>
7454: <dt>A start tag, if the <a href="#current-node">current node</a> is a <code title="">title</code> element in the <a href="#svg-namespace">SVG namespace</a>.</dt>
7455: <dt>A start tag, if the <a href="#current-node">current node</a> is an element in the <a href="#html-namespace-0">HTML namespace</a>.</dt>
7456: <dt>An end tag</dt>
7457: <dd>
7458:
7459: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the
7460: <a href="#secondary-insertion-mode">secondary insertion mode</a>.</p>
7461:
7462: <p>If, after doing so, the <a href="#insertion-mode">insertion mode</a> is still
7463: "<a href="#parsing-main-inforeign" title="insertion mode: in foreign content">in foreign
1.336 mike 7464: content</a>", but there is no element <a href="#has-an-element-in-scope" title="has an
7465: element in scope">in scope</a> that has a namespace other than
7466: the <a href="#html-namespace-0">HTML namespace</a>, switch the <a href="#insertion-mode">insertion
1.1 mike 7467: mode</a> to the <a href="#secondary-insertion-mode">secondary insertion mode</a>.</p>
7468:
7469: </dd>
7470:
7471: <dt>A start tag whose tag name is one of: <!--"a",--> "b", "big",
7472: "blockquote", "body"<!--by inspection-->, "br", "center", "code",
1.422 mike 7473: "dd", "div", "dl", "dt"<!-- so that dd and dt can be handled
7474: uniformly throughout the parser -->, "em", "embed", "h1", "h2",
7475: "h3", "h4"<!--for completeness-->, "h5", "h6"<!--for
1.1 mike 7476: completeness-->, "head"<!--by inspection-->, "hr", "i", "img",
7477: "li", "listing"<!-- so that pre and listing can be handled
7478: uniformly throughout the parser -->, "menu", "meta", "nobr",
7479: "ol"<!-- so that dl, ul, and ol can be handled uniformly throughout
7480: the parser -->, "p", "pre", "ruby", "s", <!--"script",--> "small",
7481: "span", "strong", "strike"<!-- so that s and strike can be handled
7482: uniformly throughout the parser -->, <!--"style",--> "sub", "sup",
1.305 mike 7483: "table"<!--by inspection-->, "tt", "u", "ul", "var"</dt> <!-- this
7484: list was determined empirically by studying over 6,000,000,000
1.422 mike 7485: pages that were specifically not XML pages -->
7486: <dt>A start tag whose tag name is "font", if the token has any
7487: attributes named "color", "face", or "size"</dt> <!-- the
7488: attributes here are required so that SVG <font> will go through as
7489: SVG but legacy <font>s won't -->
7490: <dt>An end-of-file token</dt> <dd>
1.1 mike 7491:
7492: <p><a href="#parse-error">Parse error</a>.</p>
7493:
7494: <p>Pop elements from the <a href="#stack-of-open-elements">stack of open elements</a> until
7495: the <a href="#current-node">current node</a> is in the <a href="#html-namespace-0">HTML
7496: namespace</a>.</p>
7497:
7498: <p>Switch the <a href="#insertion-mode">insertion mode</a> to the <a href="#secondary-insertion-mode">secondary
7499: insertion mode</a>, and reprocess the token.</p>
7500:
7501: </dd>
7502:
7503: <dt>Any other start tag</dt>
7504: <dd>
7505:
7506: <p>If the <a href="#current-node">current node</a> is an element in the
7507: <a href="#mathml-namespace">MathML namespace</a>, <a href="#adjust-mathml-attributes">adjust MathML
7508: attributes</a> for the token. (This fixes the case of MathML
7509: attributes that are not all lowercase.)</p>
7510:
7511: <p>If the <a href="#current-node">current node</a> is an element in the <a href="#svg-namespace">SVG
7512: namespace</a>, and the token's tag name is one of the ones in
7513: the first column of the following table, change the tag name to
7514: the name given in the corresponding cell in the second
7515: column. (This fixes the case of SVG elements that are not all
7516: lowercase.)</p>
7517:
7518: <table><thead><tr><th> Tag name </th><th> Element name
7519: </th></tr></thead><tbody><tr><td> <code title="">altglyph</code> </td><td> <code title="">altGlyph</code>
7520: </td></tr><tr><td> <code title="">altglyphdef</code> </td><td> <code title="">altGlyphDef</code>
7521: </td></tr><tr><td> <code title="">altglyphitem</code> </td><td> <code title="">altGlyphItem</code>
7522: </td></tr><tr><td> <code title="">animatecolor</code> </td><td> <code title="">animateColor</code>
7523: </td></tr><tr><td> <code title="">animatemotion</code> </td><td> <code title="">animateMotion</code>
7524: </td></tr><tr><td> <code title="">animatetransform</code> </td><td> <code title="">animateTransform</code>
7525: </td></tr><tr><td> <code title="">clippath</code> </td><td> <code title="">clipPath</code>
7526: </td></tr><tr><td> <code title="">feblend</code> </td><td> <code title="">feBlend</code>
7527: </td></tr><tr><td> <code title="">fecolormatrix</code> </td><td> <code title="">feColorMatrix</code>
7528: </td></tr><tr><td> <code title="">fecomponenttransfer</code> </td><td> <code title="">feComponentTransfer</code>
7529: </td></tr><tr><td> <code title="">fecomposite</code> </td><td> <code title="">feComposite</code>
7530: </td></tr><tr><td> <code title="">feconvolvematrix</code> </td><td> <code title="">feConvolveMatrix</code>
7531: </td></tr><tr><td> <code title="">fediffuselighting</code> </td><td> <code title="">feDiffuseLighting</code>
7532: </td></tr><tr><td> <code title="">fedisplacementmap</code> </td><td> <code title="">feDisplacementMap</code>
7533: </td></tr><tr><td> <code title="">fedistantlight</code> </td><td> <code title="">feDistantLight</code>
7534: </td></tr><tr><td> <code title="">feflood</code> </td><td> <code title="">feFlood</code>
7535: </td></tr><tr><td> <code title="">fefunca</code> </td><td> <code title="">feFuncA</code>
7536: </td></tr><tr><td> <code title="">fefuncb</code> </td><td> <code title="">feFuncB</code>
7537: </td></tr><tr><td> <code title="">fefuncg</code> </td><td> <code title="">feFuncG</code>
7538: </td></tr><tr><td> <code title="">fefuncr</code> </td><td> <code title="">feFuncR</code>
7539: </td></tr><tr><td> <code title="">fegaussianblur</code> </td><td> <code title="">feGaussianBlur</code>
7540: </td></tr><tr><td> <code title="">feimage</code> </td><td> <code title="">feImage</code>
7541: </td></tr><tr><td> <code title="">femerge</code> </td><td> <code title="">feMerge</code>
7542: </td></tr><tr><td> <code title="">femergenode</code> </td><td> <code title="">feMergeNode</code>
7543: </td></tr><tr><td> <code title="">femorphology</code> </td><td> <code title="">feMorphology</code>
7544: </td></tr><tr><td> <code title="">feoffset</code> </td><td> <code title="">feOffset</code>
7545: </td></tr><tr><td> <code title="">fepointlight</code> </td><td> <code title="">fePointLight</code>
7546: </td></tr><tr><td> <code title="">fespecularlighting</code> </td><td> <code title="">feSpecularLighting</code>
7547: </td></tr><tr><td> <code title="">fespotlight</code> </td><td> <code title="">feSpotLight</code>
7548: </td></tr><tr><td> <code title="">fetile</code> </td><td> <code title="">feTile</code>
7549: </td></tr><tr><td> <code title="">feturbulence</code> </td><td> <code title="">feTurbulence</code>
7550: </td></tr><tr><td> <code title="">foreignobject</code> </td><td> <code title="">foreignObject</code>
7551: </td></tr><tr><td> <code title="">glyphref</code> </td><td> <code title="">glyphRef</code>
7552: </td></tr><tr><td> <code title="">lineargradient</code> </td><td> <code title="">linearGradient</code>
7553: </td></tr><tr><td> <code title="">radialgradient</code> </td><td> <code title="">radialGradient</code>
7554: <!--<tr> <td> <code title="">solidcolor</code> <td> <code title="">solidColor</code> (SVG 1.2)-->
7555: </td></tr><tr><td> <code title="">textpath</code> </td><td> <code title="">textPath</code>
7556: </td></tr></tbody></table><p>If the <a href="#current-node">current node</a> is an element in the <a href="#svg-namespace">SVG
7557: namespace</a>, <a href="#adjust-svg-attributes">adjust SVG attributes</a> for the
7558: token. (This fixes the case of SVG attributes that are not all
7559: lowercase.)</p>
7560:
7561: <p><a href="#adjust-foreign-attributes">Adjust foreign attributes</a> for the token. (This
7562: fixes the use of namespaced attributes, in particular XLink in
7563: SVG.)</p>
7564:
7565: <p><a href="#insert-a-foreign-element">Insert a foreign element</a> for the token, in the
7566: same namespace as the <a href="#current-node">current node</a>.</p>
7567:
7568: <p>If the token has its <i>self-closing flag</i> set, pop the
7569: <a href="#current-node">current node</a> off the <a href="#stack-of-open-elements">stack of open
7570: elements</a> and <a href="#acknowledge-self-closing-flag" title="acknowledge self-closing
7571: flag">acknowledge the token's <i>self-closing flag</i></a>.</p>
7572:
7573: </dd>
7574:
1.614 mike 7575: </dl><h5 id="parsing-main-afterbody"><span class="secno">9.2.5.22 </span>The "<dfn title="insertion mode: after body">after body</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7576:
7577: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-afterbody" title="insertion
7578: mode: after body">after body</a>", tokens must be handled as follows:</p>
7579:
7580: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
7581: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
7582: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
7583: <dd>
7584: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7585: mode</a>.</p>
7586: </dd>
7587:
7588: <dt>A comment token</dt>
7589: <dd>
7590: <p>Append a <code>Comment</code> node to the first element in
1.159 mike 7591: the <a href="#stack-of-open-elements">stack of open elements</a> (the <code><a href="semantics.html#the-html-element-0">html</a></code>
1.1 mike 7592: element), with the <code title="">data</code> attribute set to
7593: the data given in the comment token.</p>
7594: </dd>
7595:
7596: <dt>A DOCTYPE token</dt>
7597: <dd>
7598: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7599: </dd>
7600:
7601: <dt>A start tag whose tag name is "html"</dt>
7602: <dd>
7603: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7604: mode</a>.</p>
7605: </dd>
7606:
7607: <dt>An end tag whose tag name is "html"</dt>
7608: <dd>
7609:
7610: <p>If the parser was originally created as part of the <a href="#html-fragment-parsing-algorithm">HTML
7611: fragment parsing algorithm</a>, this is a <a href="#parse-error">parse
7612: error</a>; ignore the token. (<a href="#fragment-case">fragment case</a>)</p>
7613:
7614: <p>Otherwise, switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-after-after-body-insertion-mode" title="insertion mode: after after body">after after
7615: body</a>".</p>
7616:
7617: </dd>
7618:
7619: <dt>An end-of-file token</dt>
7620: <dd>
7621: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7622: </dd>
7623:
7624: <dt>Anything else</dt>
7625: <dd>
7626:
7627: <p><a href="#parse-error">Parse error</a>. Switch the <a href="#insertion-mode">insertion
7628: mode</a> to "<a href="#parsing-main-inbody" title="insertion mode: in body">in
7629: body</a>" and reprocess the token.</p>
7630:
7631: </dd>
7632:
1.614 mike 7633: </dl><h5 id="parsing-main-inframeset"><span class="secno">9.2.5.23 </span>The "<dfn title="insertion mode: in frameset">in frameset</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7634:
7635: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inframeset" title="insertion
7636: mode: in frameset">in frameset</a>", tokens must be handled as follows:</p>
7637:
7638: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
7639: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
7640: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
7641: <dd>
7642: <p><a href="#insert-a-character" title="insert a character">Insert the character</a> into
7643: the <a href="#current-node">current node</a>.</p>
7644: </dd>
7645:
7646: <dt>A comment token</dt>
7647: <dd>
7648: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
7649: node</a> with the <code title="">data</code> attribute set to
7650: the data given in the comment token.</p>
7651: </dd>
7652:
7653: <dt>A DOCTYPE token</dt>
7654: <dd>
7655: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7656: </dd>
7657:
7658: <dt>A start tag whose tag name is "html"</dt>
7659: <dd>
7660: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7661: mode</a>.</p>
7662: </dd>
7663:
7664: <dt>A start tag whose tag name is "frameset"</dt>
7665: <dd>
7666: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.</p>
7667: </dd>
7668:
7669: <dt>An end tag whose tag name is "frameset"</dt>
7670: <dd>
7671:
7672: <p>If the <a href="#current-node">current node</a> is the root
1.159 mike 7673: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 7674: error</a>; ignore the token. (<a href="#fragment-case">fragment
7675: case</a>)</p>
7676:
7677: <p>Otherwise, pop the <a href="#current-node">current node</a> from the
7678: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
7679:
7680: <p>If the parser was <em>not</em> originally created as part
7681: of the <a href="#html-fragment-parsing-algorithm">HTML fragment parsing algorithm</a>
7682: (<a href="#fragment-case">fragment case</a>), and the <a href="#current-node">current
1.5 mike 7683: node</a> is no longer a <code><a href="obsolete.html#frameset">frameset</a></code> element, then
1.1 mike 7684: switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#parsing-main-afterframeset" title="insertion mode: after frameset">after
7685: frameset</a>".</p>
7686:
7687: </dd>
7688:
7689: <dt>A start tag whose tag name is "frame"</dt>
7690: <dd>
7691:
7692: <p><a href="#insert-an-html-element">Insert an HTML element</a> for the token.
7693: Immediately pop the <a href="#current-node">current node</a> off the
7694: <a href="#stack-of-open-elements">stack of open elements</a>.</p>
7695:
7696: <p><a href="#acknowledge-self-closing-flag" title="acknowledge self-closing flag">Acknowledge the
7697: token's <i>self-closing flag</i></a>, if it is set.</p>
7698:
7699: </dd>
7700:
7701: <dt>A start tag whose tag name is "noframes"</dt>
7702: <dd>
7703: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
7704: mode</a>.</p>
7705: </dd>
7706:
7707: <dt>An end-of-file token</dt>
7708: <dd>
7709:
7710: <p>If the <a href="#current-node">current node</a> is not the root
1.159 mike 7711: <code><a href="semantics.html#the-html-element-0">html</a></code> element, then this is a <a href="#parse-error">parse
1.1 mike 7712: error</a>.</p>
7713:
7714: <p class="note">It can only be the <a href="#current-node">current node</a> in
7715: the <a href="#fragment-case">fragment case</a>.</p>
7716:
7717: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7718:
7719: </dd>
7720:
7721: <dt>Anything else</dt>
7722: <dd>
7723: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7724: </dd>
7725:
1.614 mike 7726: </dl><h5 id="parsing-main-afterframeset"><span class="secno">9.2.5.24 </span>The "<dfn title="insertion mode: after frameset">after frameset</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7727:
7728: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-afterframeset" title="insertion
7729: mode: after frameset">after frameset</a>", tokens must be handled as follows:</p>
7730:
7731: <!-- due to rules in the "in frameset" mode, this can't be entered in the fragment case -->
7732: <dl class="switch"><dt>A character token that is one of U+0009 CHARACTER
7733: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
7734: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
7735: <dd>
7736: <p><a href="#insert-a-character" title="insert a character">Insert the character</a> into
7737: the <a href="#current-node">current node</a>.</p>
7738: </dd>
7739:
7740: <dt>A comment token</dt>
7741: <dd>
7742: <p>Append a <code>Comment</code> node to the <a href="#current-node">current
7743: node</a> with the <code title="">data</code> attribute set to
7744: the data given in the comment token.</p>
7745: </dd>
7746:
7747: <dt>A DOCTYPE token</dt>
7748: <dd>
7749: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7750: </dd>
7751:
7752: <dt>A start tag whose tag name is "html"</dt>
7753: <dd>
7754: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7755: mode</a>.</p>
7756: </dd>
7757:
7758: <dt>An end tag whose tag name is "html"</dt>
7759: <dd>
7760: <p>Switch the <a href="#insertion-mode">insertion mode</a> to "<a href="#the-after-after-frameset-insertion-mode" title="insertion mode: after after frameset">after after
7761: frameset</a>".</p>
7762: </dd>
7763:
7764: <dt>A start tag whose tag name is "noframes"</dt>
7765: <dd>
7766: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
7767: mode</a>.</p>
7768: </dd>
7769:
7770: <dt>An end-of-file token</dt>
7771: <dd>
7772: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7773: </dd>
7774:
7775: <dt>Anything else</dt>
7776: <dd>
7777: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7778: </dd>
7779:
1.614 mike 7780: </dl><h5 id="the-after-after-body-insertion-mode"><span class="secno">9.2.5.25 </span>The "<dfn title="insertion mode: after after body">after after body</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7781:
7782: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-after-after-body-insertion-mode" title="insertion
7783: mode: after after body">after after body</a>", tokens must be handled as follows:</p>
7784:
7785: <dl class="switch"><dt>A comment token</dt>
7786: <dd>
7787: <p>Append a <code>Comment</code> node to the <code>Document</code>
7788: object with the <code title="">data</code> attribute set to the
7789: data given in the comment token.</p>
7790: </dd>
7791:
7792: <dt>A DOCTYPE token</dt>
7793: <dt>A character token that is one of U+0009 CHARACTER
7794: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
7795: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
7796: <dt>A start tag whose tag name is "html"</dt>
7797: <dd>
7798: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7799: mode</a>.</p>
7800: </dd>
7801:
7802: <dt>An end-of-file token</dt>
7803: <dd>
7804: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7805: </dd>
7806:
7807: <dt>Anything else</dt>
7808: <dd>
7809: <p><a href="#parse-error">Parse error</a>. Switch the <a href="#insertion-mode">insertion mode</a>
7810: to "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" and
7811: reprocess the token.</p>
7812: </dd>
7813:
1.614 mike 7814: </dl><h5 id="the-after-after-frameset-insertion-mode"><span class="secno">9.2.5.26 </span>The "<dfn title="insertion mode: after after frameset">after after frameset</dfn>" insertion mode</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7815:
7816: <p>When the <a href="#insertion-mode">insertion mode</a> is "<a href="#the-after-after-frameset-insertion-mode" title="insertion
7817: mode: after after frameset">after after frameset</a>", tokens must be handled as follows:</p>
7818:
7819: <dl class="switch"><dt>A comment token</dt>
7820: <dd>
7821: <p>Append a <code>Comment</code> node to the <code>Document</code>
7822: object with the <code title="">data</code> attribute set to the
7823: data given in the comment token.</p>
7824: </dd>
7825:
7826: <dt>A DOCTYPE token</dt>
7827: <dt>A character token that is one of U+0009 CHARACTER
7828: TABULATION, U+000A LINE FEED (LF), U+000C FORM FEED (FF),
7829: <!--U+000D CARRIAGE RETURN (CR),--> or U+0020 SPACE</dt>
7830: <dt>A start tag whose tag name is "html"</dt>
7831: <dd>
7832: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>" <a href="#insertion-mode">insertion
7833: mode</a>.</p>
7834: </dd>
7835:
7836: <dt>An end-of-file token</dt>
7837: <dd>
7838: <p><a href="#stop-parsing">Stop parsing</a>.</p>
7839: </dd>
7840:
7841: <dt>A start tag whose tag name is "noframes"</dt>
7842: <dd>
7843: <p>Process the token <a href="#using-the-rules-for">using the rules for</a> the "<a href="#parsing-main-inhead" title="insertion mode: in head">in head</a>" <a href="#insertion-mode">insertion
7844: mode</a>.</p>
7845: </dd>
7846:
7847: <dt>Anything else</dt>
7848: <dd>
7849: <p><a href="#parse-error">Parse error</a>. Ignore the token.</p>
7850: </dd>
7851:
1.266 mike 7852: </dl></div><div class="impl">
7853:
1.614 mike 7854: <h4 id="the-end"><span class="secno">9.2.6 </span>The end</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7855:
7856: <p>Once the user agent <dfn id="stop-parsing" title="stop parsing">stops parsing</dfn>
1.484 mike 7857: the document, the user agent must run the following steps:</p>
1.1 mike 7858:
1.484 mike 7859: <ol><!-- this happens as part of one of the tasks that runs the parser --><li><p>Set the <a href="dom.html#current-document-readiness">current document readiness</a> to
7860: "interactive" <!-- this also synchronously fires an event --> and
7861: the <a href="#insertion-point">insertion point</a> to undefined.</p></li>
7862:
7863: <li><p>If the <a href="semantics.html#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing">list of scripts that will execute when the
7864: document has finished parsing</a> is not empty, run these
7865: substeps:</p>
7866:
7867: <ol><li><p><a href="browsers.html#spin-the-event-loop">Spin the event loop</a> until the first
7868: <code><a href="semantics.html#script">script</a></code> in the <a href="semantics.html#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing">list of scripts that will
7869: execute when the document has finished parsing</a> has its
7870: <a href="semantics.html#ready-to-be-parser-executed">"ready to be parser-executed"</a> flag set <em>and</em> there
7871: is no <a href="semantics.html#a-style-sheet-blocking-scripts" title="a style sheet blocking scripts">style sheet
7872: blocking scripts</a>.</p></li>
7873:
7874: <li><p><a href="semantics.html#executing-a-script-block" title="executing a script block">Execute</a> the
7875: first <code><a href="semantics.html#script">script</a></code> in the <a href="semantics.html#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing">list of scripts that will
7876: execute when the document has finished parsing</a>.</p></li>
7877:
7878: <li><p>Remove the first <code><a href="semantics.html#script">script</a></code> element from the
7879: <a href="semantics.html#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing">list of scripts that will execute when the document has
7880: finished parsing</a> (i.e. shift out the first entry in the
7881: list).</p></li>
7882:
7883: <li><p>If the <a href="semantics.html#list-of-scripts-that-will-execute-when-the-document-has-finished-parsing">list of scripts that will execute when the
7884: document has finished parsing</a> is still not empty, repeat
7885: these substeps again from substep 1.</p>
7886:
7887: </li></ol></li>
7888:
1.671 mike 7889: <li><p><a href="browsers.html#spin-the-event-loop">Spin the event loop</a> until the <a href="semantics.html#list-of-scripts-that-will-execute-as-soon-as-possible">list of
1.484 mike 7890: scripts that will execute as soon as possible</a> is
7891: empty.</p></li>
7892:
7893: <li><p><a href="browsers.html#queue-a-task">Queue a task</a> to <a href="browsers.html#fire-a-simple-event">fire a simple
7894: event</a> named <code title="event-DOMContentLoaded">DOMContentLoaded</code> at the
7895: <code>Document</code>.</p></li>
7896:
7897: <li><p><a href="browsers.html#spin-the-event-loop">Spin the event loop</a> until there is nothing that
7898: <dfn id="delay-the-load-event" title="delay the load event">delays the load event</dfn> in
7899: the <code>Document</code>.</p></li>
7900:
7901: <li><p><a href="browsers.html#queue-a-task">Queue a task</a> to set the <a href="dom.html#current-document-readiness">current document
7902: readiness</a> to "complete". <!-- this also fires an event
7903: synchronously during the task --></p></li>
1.1 mike 7904:
1.484 mike 7905: <li><p>If the <code>Document</code> is in a <a href="browsers.html#browsing-context">browsing
1.1 mike 7906: context</a>, then <a href="browsers.html#queue-a-task">queue a task</a> to <a href="browsers.html#fire-a-simple-event">fire a
1.460 mike 7907: simple event</a> named <code title="event-load">load</code> at
1.1 mike 7908: the <code>Document</code>'s <code><a href="browsers.html#window">Window</a></code> object, but with
7909: its <code title="dom-event-target">target</code> set to the
7910: <code>Document</code> object (and the <code title="dom-event-currentTarget">currentTarget</code> set to the
1.484 mike 7911: <code><a href="browsers.html#window">Window</a></code> object).</p></li>
1.1 mike 7912:
1.569 mike 7913: <li><p>If the <code>Document</code> is in a <a href="browsers.html#browsing-context">browsing
7914: context</a>, then <a href="browsers.html#queue-a-task">queue a task</a> to <a href="browsers.html#fire-a-simple-event">fire a
7915: simple event</a> named <code title="event-pageshow">pageshow</code> at the
7916: <code>Document</code>'s <code><a href="browsers.html#window">Window</a></code> object.</p></li>
7917:
1.484 mike 7918: <li><p>If the <code>Document</code> has a <a href="history.html#pending-state-object">pending state
1.651 mike 7919: object</a>, then <a href="browsers.html#queue-a-task">queue a task</a> to fire a <code title="event-popstate"><a href="history.html#event-popstate">popstate</a></code> event at the
1.1 mike 7920: <code>Document</code>'s <code><a href="browsers.html#window">Window</a></code> object using the
7921: <code><a href="history.html#popstateevent">PopStateEvent</a></code> interface, with the <code title="dom-PopStateEvent-state"><a href="history.html#dom-popstateevent-state">state</a></code> attribute set to the
7922: current value of the <a href="history.html#pending-state-object">pending state object</a>. This event
1.484 mike 7923: must bubble but not be cancelable and has no default
7924: action.</p></li>
1.1 mike 7925:
1.484 mike 7926: </ol><p>The <a href="browsers.html#task-source">task source</a> for the <a href="browsers.html#concept-task" title="concept-task">tasks</a> mentioned in this section is the
7927: <a href="browsers.html#dom-manipulation-task-source">DOM manipulation task source</a>.</p>
1.1 mike 7928:
1.266 mike 7929: </div><div class="impl">
1.1 mike 7930:
1.614 mike 7931: <h4 id="coercing-an-html-dom-into-an-infoset"><span class="secno">9.2.7 </span>Coercing an HTML DOM into an infoset</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 7932:
7933: <p>When an application uses an <a href="#html-parser">HTML parser</a> in
7934: conjunction with an XML pipeline, it is possible that the
7935: constructed DOM is not compatible with the XML tool chain in certain
7936: subtle ways. For example, an XML toolchain might not be able to
7937: represent attributes with the name <code title="">xmlns</code>,
7938: since they conflict with the Namespaces in XML syntax. There is also
7939: some data that the <a href="#html-parser">HTML parser</a> generates that isn't
7940: included in the DOM itself. This section specifies some rules for
7941: handling these issues.</p>
7942:
7943: <p>If the XML API being used doesn't support DOCTYPEs, the tool may
7944: drop DOCTYPEs altogether.</p>
7945:
7946: <p>If the XML API doesn't support attributes in no namespace that
7947: are named "<code title="">xmlns</code>", attributes whose names
7948: start with "<code title="">xmlns:</code>", or attributes in the
7949: <a href="#xmlns-namespace">XMLNS namespace</a>, then the tool may drop such
7950: attributes.</p>
7951:
7952: <p>The tool may annotate the output with any namespace declarations
7953: required for proper operation.</p>
7954:
7955: <p>If the XML API being used restricts the allowable characters in
7956: the local names of elements and attributes, then the tool may map
7957: all element and attribute local names that the API wouldn't support
7958: to a set of names that <em>are</em> allowed, by replacing any
7959: character that isn't supported with the uppercase letter U and the
7960: six digits of the character's Unicode code point when expressed in
7961: hexadecimal, using digits 0-9 and capital letters A-F as the
7962: symbols, in increasing numeric order.</p>
7963:
7964: <p class="example">For example, the element name <code title="">foo<bar</code>, which can be output by the <a href="#html-parser">HTML
7965: parser</a>, though it is neither a legal HTML element name nor a
7966: well-formed XML element name, would be converted into <code title="">fooU00003Cbar</code>, which <em>is</em> a well-formed XML
7967: element name (though it's still not legal in HTML by any means).</p>
7968:
7969: <p class="example">As another example, consider the attribute
7970: <code>xlink:href</code>. Used on a MathML element, it becomes, after
7971: being <a href="#adjust-foreign-attributes" title="adjust foreign attributes">adjusted</a>, an
7972: attribute with a prefix "<code title="">xlink</code>" and a local
7973: name "<code title="">href</code>". However, used on an HTML element,
7974: it becomes an attribute with no prefix and the local name "<code title="">xlink:href</code>", which is not a valid NCName, and thus
7975: might not be accepted by an XML API. It could thus get converted,
7976: becoming "<code title="">xlinkU00003Ahref</code>".</p>
7977:
7978: <p class="note">The resulting names from this conversion
7979: conveniently can't clash with any attribute generated by the
7980: <a href="#html-parser">HTML parser</a>, since those are all either lowercase or
7981: those listed in the <a href="#adjust-foreign-attributes">adjust foreign attributes</a>
7982: algorithm's table.</p>
7983:
7984: <p>If the XML API restricts comments from having two consecutive
7985: U+002D HYPHEN-MINUS characters (--), the tool may insert a single
7986: U+0020 SPACE character between any such offending characters.</p>
7987:
7988: <p>If the XML API restricts comments from ending in a
7989: U+002D HYPHEN-MINUS character (-), the tool may insert a single
7990: U+0020 SPACE character at the end of such comments.</p>
7991:
7992: <p>If the XML API restricts allowed characters in character data,
1.439 mike 7993: attribute values, or comments, the tool may replace any U+000C FORM
7994: FEED (FF) character with a U+0020 SPACE character, and any other
7995: literal non-XML character with a U+FFFD REPLACEMENT CHARACTER.</p>
1.1 mike 7996:
7997: <p>If the tool has no way to convey out-of-band information, then
7998: the tool may drop the following information:</p>
7999:
8000: <ul><li>Whether the document is set to <i><a href="dom.html#no-quirks-mode">no quirks mode</a></i>,
8001: <i><a href="dom.html#limited-quirks-mode">limited quirks mode</a></i>, or <i><a href="dom.html#quirks-mode">quirks mode</a></i></li>
8002:
8003: <li>The association between form controls and forms that aren't
8004: their nearest <code><a href="forms.html#the-form-element">form</a></code> element ancestor (use of the
8005: <a href="#form-element-pointer"><code>form</code> element pointer</a> in the parser)</li>
8006:
8007: </ul><p class="note">The mutations allowed by this section apply
8008: <em>after</em> the <a href="#html-parser">HTML parser</a>'s rules have been
8009: applied. For example, a <code title=""><a::></code> start tag
8010: will be closed by a <code title=""></a::></code> end tag, and
8011: never by a <code title=""></aU00003AU00003A></code> end tag, even
8012: if the user agent is using the rules above to then generate an
8013: actual element in the DOM with the name <code title="">aU00003AU00003A</code> for that start tag.</p>
8014:
1.266 mike 8015: </div><div class="impl">
1.1 mike 8016:
1.614 mike 8017: <h4 id="an-introduction-to-error-handling-and-strange-cases-in-the-parser"><span class="secno">9.2.8 </span>An introduction to error handling and strange cases in the parser</h4><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8018:
8019: <p><i>This section is non-normative.</i></p>
8020:
8021: <p>This section examines some erroneous markup and discusses how
8022: the <a href="#html-parser">HTML parser</a> handles these cases.</p>
8023:
8024:
8025: <h5 id="misnested-tags:-b-i-b-i"><span class="secno">9.2.8.1 </span>Misnested tags: <b><i></b></i></h5>
8026:
8027: <p><i>This section is non-normative.</i></p>
8028:
8029: <p>The most-often discussed example of erroneous markup is as
8030: follows:</p>
8031:
8032: <pre><p>1<b>2<i>3</b>4</i>5</p></pre>
8033:
8034: <p>The parsing of this markup is straightforward up to the "3". At
8035: this point, the DOM looks like this:</p>
8036:
1.159 mike 8037: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li><li class="t1"><code><a href="text-level-semantics.html#the-i-element">i</a></code><ul><li class="t3"><code>#text</code>: <span title="">3</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul><p>Here, the <a href="#stack-of-open-elements">stack of open elements</a> has five elements
8038: on it: <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="semantics.html#the-p-element">p</a></code>,
1.1 mike 8039: <code><a href="text-level-semantics.html#the-b-element">b</a></code>, and <code><a href="text-level-semantics.html#the-i-element">i</a></code>. The <a href="#list-of-active-formatting-elements">list of active
8040: formatting elements</a> just has two: <code><a href="text-level-semantics.html#the-b-element">b</a></code> and
8041: <code><a href="text-level-semantics.html#the-i-element">i</a></code>. The <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>".</p>
8042:
8043: <p>Upon receiving the end tag token with the tag name "b", the "<a href="#adoptionAgency">adoption agency algorithm</a>" is
8044: invoked. This is a simple case, in that the <var title="">formatting
8045: element</var> is the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element, and there is no
8046: <var title="">furthest block</var>. Thus, the <a href="#stack-of-open-elements">stack of open
1.159 mike 8047: elements</a> ends up with just three elements: <code><a href="semantics.html#the-html-element-0">html</a></code>,
8048: <code><a href="semantics.html#the-body-element-0">body</a></code>, and <code><a href="semantics.html#the-p-element">p</a></code>, while the <a href="#list-of-active-formatting-elements">list of
1.1 mike 8049: active formatting elements</a> has just one: <code><a href="text-level-semantics.html#the-i-element">i</a></code>. The
8050: DOM tree is unmodified at this point.</p>
8051:
8052: <p>The next token is a character ("4"), triggers the <a href="#reconstruct-the-active-formatting-elements" title="reconstruct the active formatting elements">reconstruction of
8053: the active formatting elements</a>, in this case just the
8054: <code><a href="text-level-semantics.html#the-i-element">i</a></code> element. A new <code><a href="text-level-semantics.html#the-i-element">i</a></code> element is thus created
8055: for the "4" text node. After the end tag token for the "i" is also
8056: received, and the "5" text node is inserted, the DOM looks as
8057: follows:</p>
8058:
1.159 mike 8059: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li><li class="t1"><code><a href="text-level-semantics.html#the-i-element">i</a></code><ul><li class="t3"><code>#text</code>: <span title="">3</span></li></ul></li></ul></li><li class="t1"><code><a href="text-level-semantics.html#the-i-element">i</a></code><ul><li class="t3"><code>#text</code>: <span title="">4</span></li></ul></li><li class="t3"><code>#text</code>: <span title="">5</span></li></ul></li></ul></li></ul></li></ul><h5 id="misnested-tags:-b-p-b-p"><span class="secno">9.2.8.2 </span>Misnested tags: <b><p></b></p></h5>
1.1 mike 8060:
8061: <p><i>This section is non-normative.</i></p>
8062:
8063: <p>A case similar to the previous one is the following:</p>
8064:
8065: <pre><b>1<p>2</b>3</p></pre>
8066:
8067: <p>Up to the "2" the parsing here is straightforward:</p>
8068:
1.159 mike 8069: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li></ul></li></ul></li></ul></li></ul></li></ul><p>The interesting part is when the end tag token with the tag name
1.1 mike 8070: "b" is parsed.</p>
8071:
8072: <p>Before that token is seen, the <a href="#stack-of-open-elements">stack of open
1.159 mike 8073: elements</a> has four elements on it: <code><a href="semantics.html#the-html-element-0">html</a></code>,
8074: <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="text-level-semantics.html#the-b-element">b</a></code>, and <code><a href="semantics.html#the-p-element">p</a></code>. The
1.1 mike 8075: <a href="#list-of-active-formatting-elements">list of active formatting elements</a> just has the one:
8076: <code><a href="text-level-semantics.html#the-b-element">b</a></code>. The <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-inbody" title="insertion mode: in body">in body</a>".</p>
8077:
8078: <p>Upon receiving the end tag token with the tag name "b", the "<a href="#adoptionAgency">adoption agency algorithm</a>" is invoked, as
8079: in the previous example. However, in this case, there <em>is</em> a
8080: <var title="">furthest block</var>, namely the <code><a href="semantics.html#the-p-element">p</a></code> element. Thus,
8081: this time the adoption agency algorithm isn't skipped over.</p>
8082:
1.159 mike 8083: <p>The <var title="">common ancestor</var> is the <code><a href="semantics.html#the-body-element-0">body</a></code>
1.1 mike 8084: element. A conceptual "bookmark" marks the position of the
8085: <code><a href="text-level-semantics.html#the-b-element">b</a></code> in the <a href="#list-of-active-formatting-elements">list of active formatting
8086: elements</a>, but since that list has only one element in it,
8087: it won't have much effect.</p>
8088:
8089: <p>As the algorithm progresses, <var title="">node</var> ends up set
8090: to the formatting element (<code><a href="text-level-semantics.html#the-b-element">b</a></code>), and <var title="">last
8091: node</var> ends up set to the <var title="">furthest block</var>
8092: (<code><a href="semantics.html#the-p-element">p</a></code>).</p>
8093:
8094: <p>The <var title="">last node</var> gets appended (moved) to the
8095: <var title="">common ancestor</var>, so that the DOM looks like:</p>
8096:
1.159 mike 8097: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li></ul></li><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li></ul></li></ul></li></ul></li></ul><p>A new <code><a href="text-level-semantics.html#the-b-element">b</a></code> element is created, and the children of the
1.1 mike 8098: <code><a href="semantics.html#the-p-element">p</a></code> element are moved to it:</p>
8099:
1.159 mike 8100: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li></ul></li><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code></li></ul></li></ul></li></ul><ul class="domTree"><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li></ul></li></ul><p>Finally, the new <code><a href="text-level-semantics.html#the-b-element">b</a></code> element is appended to the
1.1 mike 8101: <code><a href="semantics.html#the-p-element">p</a></code> element, so that the DOM looks like:</p>
8102:
1.159 mike 8103: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li></ul></li><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li></ul></li></ul></li></ul></li></ul></li></ul><p>The <code><a href="text-level-semantics.html#the-b-element">b</a></code> element is removed from the <a href="#list-of-active-formatting-elements">list of
1.1 mike 8104: active formatting elements</a> and the <a href="#stack-of-open-elements">stack of open
8105: elements</a>, so that when the "3" is parsed, it is appended to
8106: the <code><a href="semantics.html#the-p-element">p</a></code> element:</p>
8107:
1.614 mike 8108: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">1</span></li></ul></li><li class="t1"><code><a href="semantics.html#the-p-element">p</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">2</span></li></ul></li><li class="t3"><code>#text</code>: <span title="">3</span></li></ul></li></ul></li></ul></li></ul><h5 id="unexpected-markup-in-tables"><span class="secno">9.2.8.3 </span>Unexpected markup in tables</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8109:
8110: <p><i>This section is non-normative.</i></p>
8111:
8112: <p>Error handling in tables is, for historical reasons, especially
8113: strange. For example, consider the following markup:</p>
8114:
8115: <pre><table><strong><b></strong><tr><td>aaa</td></tr><strong>bbb</strong></table>ccc</pre>
8116:
8117: <p>The highlighted <code><a href="text-level-semantics.html#the-b-element">b</a></code> element start tag is not allowed
8118: directly inside a table like that, and the parser handles this case
8119: by placing the element <em>before</em> the table. (This is called <i title="foster parent"><a href="#foster-parent">foster parenting</a></i>.) This can be seen by
8120: examining the DOM tree as it stands just after the
8121: <code><a href="tabular-data.html#the-table-element">table</a></code> element's start tag has been seen:</p>
8122:
1.159 mike 8123: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code></li></ul></li></ul></li></ul><p>...and then immediately after the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element start
1.1 mike 8124: tag has been seen:</p>
8125:
1.159 mike 8126: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code></li></ul></li></ul></li></ul><p>At this point, the <a href="#stack-of-open-elements">stack of open elements</a> has on it
8127: the elements <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>,
1.1 mike 8128: <code><a href="tabular-data.html#the-table-element">table</a></code>, and <code><a href="text-level-semantics.html#the-b-element">b</a></code> (in that order, despite the
8129: resulting DOM tree); the <a href="#list-of-active-formatting-elements">list of active formatting
8130: elements</a> just has the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element in it; and the
8131: <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intable" title="insertion mode: in
8132: table">in table</a>".</p>
8133:
8134: <p>The <code><a href="tabular-data.html#the-tr-element">tr</a></code> start tag causes the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element
8135: to be popped off the stack and a <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> start tag to be
8136: implied; the <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> and <code><a href="tabular-data.html#the-tr-element">tr</a></code> elements are
8137: then handled in a rather straight-forward manner, taking the parser
8138: through the "<a href="#parsing-main-intbody" title="insertion mode: in table body">in table
8139: body</a>" and "<a href="#parsing-main-intr" title="insertion mode: in row">in
8140: row</a>" insertion modes, after which the DOM looks as
8141: follows:</p>
8142:
1.159 mike 8143: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tbody-element">tbody</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tr-element">tr</a></code></li></ul></li></ul></li></ul></li></ul></li></ul><p>Here, the <a href="#stack-of-open-elements">stack of open elements</a> has on it the
8144: elements <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="tabular-data.html#the-table-element">table</a></code>,
1.1 mike 8145: <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>, and <code><a href="tabular-data.html#the-tr-element">tr</a></code>; the <a href="#list-of-active-formatting-elements">list of active
8146: formatting elements</a> still has the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element in
8147: it; and the <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intr" title="insertion
8148: mode: in row">in row</a>".</p>
8149:
8150: <p>The <code><a href="tabular-data.html#the-td-element">td</a></code> element start tag token, after putting a
8151: <code><a href="tabular-data.html#the-td-element">td</a></code> element on the tree, puts a marker on the <a href="#list-of-active-formatting-elements">list
8152: of active formatting elements</a> (it also switches to the "<a href="#parsing-main-intd" title="insertion mode: in cell">in cell</a>" <a href="#insertion-mode">insertion
8153: mode</a>).</p>
8154:
1.159 mike 8155: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tbody-element">tbody</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tr-element">tr</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-td-element">td</a></code></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul><p>The marker means that when the "aaa" character tokens are seen,
1.1 mike 8156: no <code><a href="text-level-semantics.html#the-b-element">b</a></code> element is created to hold the resulting text
8157: node:</p>
8158:
1.159 mike 8159: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tbody-element">tbody</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tr-element">tr</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-td-element">td</a></code><ul><li class="t3"><code>#text</code>: <span title="">aaa</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul><p>The end tags are handled in a straight-forward manner; after
1.1 mike 8160: handling them, the <a href="#stack-of-open-elements">stack of open elements</a> has on it the
1.159 mike 8161: elements <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="tabular-data.html#the-table-element">table</a></code>,
1.1 mike 8162: and <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>; the <a href="#list-of-active-formatting-elements">list of active formatting
8163: elements</a> still has the <code><a href="text-level-semantics.html#the-b-element">b</a></code> element in it (the
8164: marker having been removed by the "td" end tag token); and the
8165: <a href="#insertion-mode">insertion mode</a> is "<a href="#parsing-main-intbody" title="insertion mode: in
8166: table body">in table body</a>".</p>
8167:
8168: <p>Thus it is that the "bbb" character tokens are found. These
8169: trigger the "<a href="#parsing-main-intabletext" title="insertion mode: in table text">in table
8170: text</a>" insertion mode to be used (with the <a href="#original-insertion-mode">original
8171: insertion mode</a> set to "<a href="#parsing-main-intbody" title="insertion mode: in table
8172: body">in table body</a>"). The character tokens are collected,
8173: and when the next token (the <code><a href="tabular-data.html#the-table-element">table</a></code> element end tag) is
8174: seen, they are processed as a group. Since they are not all spaces,
8175: they are handled as per the "anything else" rules in the "<a href="#parsing-main-intable" title="insertion mode: in table">in table</a>" insertion mode,
8176: which defer to the "<a href="#parsing-main-inbody" title="insertion mode: in body">in
8177: body</a>" insertion mode but with <a href="#foster-parent" title="foster
8178: parent">foster parenting</a>.</p>
8179:
8180: <p>When <a href="#reconstruct-the-active-formatting-elements" title="reconstruct the active formatting elements">the
8181: active formatting elements are reconstructed</a>, a
8182: <code><a href="text-level-semantics.html#the-b-element">b</a></code> element is created and <a href="#foster-parent" title="foster
8183: parent">foster parented</a>, and then the "bbb" text node is
8184: appended to it:</p>
8185:
1.159 mike 8186: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">bbb</span></li></ul></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tbody-element">tbody</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tr-element">tr</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-td-element">td</a></code><ul><li class="t3"><code>#text</code>: <span title="">aaa</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul><p>The <a href="#stack-of-open-elements">stack of open elements</a> has on it the elements
8187: <code><a href="semantics.html#the-html-element-0">html</a></code>, <code><a href="semantics.html#the-body-element-0">body</a></code>, <code><a href="tabular-data.html#the-table-element">table</a></code>,
1.1 mike 8188: <code><a href="tabular-data.html#the-tbody-element">tbody</a></code>, and the new <code><a href="text-level-semantics.html#the-b-element">b</a></code> (again, note that
8189: this doesn't match the resulting tree!); the <a href="#list-of-active-formatting-elements">list of active
8190: formatting elements</a> has the new <code><a href="text-level-semantics.html#the-b-element">b</a></code> element in it;
8191: and the <a href="#insertion-mode">insertion mode</a> is still "<a href="#parsing-main-intbody" title="insertion
8192: mode: in table body">in table body</a>".</p>
8193:
8194: <p>Had the character tokens been only <a href="infrastructure.html#space-character" title="space
8195: character">space characters</a> instead of "bbb", then those
8196: <a href="infrastructure.html#space-character" title="space character">space characters</a> would just be
8197: appended to the <code><a href="tabular-data.html#the-tbody-element">tbody</a></code> element.</p>
8198:
8199: <p>Finally, the <code><a href="tabular-data.html#the-table-element">table</a></code> is closed by a "table" end
8200: tag. This pops all the nodes from the <a href="#stack-of-open-elements">stack of open
8201: elements</a> up to and including the <code><a href="tabular-data.html#the-table-element">table</a></code> element,
8202: but it doesn't affect the <a href="#list-of-active-formatting-elements">list of active formatting
8203: elements</a>, so the "ccc" character tokens after the table
8204: result in yet another <code><a href="text-level-semantics.html#the-b-element">b</a></code> element being created, this
8205: time after the table:</p>
8206:
1.614 mike 8207: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code></li><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">bbb</span></li></ul></li><li class="t1"><code><a href="tabular-data.html#the-table-element">table</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tbody-element">tbody</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-tr-element">tr</a></code><ul><li class="t1"><code><a href="tabular-data.html#the-td-element">td</a></code><ul><li class="t3"><code>#text</code>: <span title="">aaa</span></li></ul></li></ul></li></ul></li></ul></li><li class="t1"><code><a href="text-level-semantics.html#the-b-element">b</a></code><ul><li class="t3"><code>#text</code>: <span title="">ccc</span></li></ul></li></ul></li></ul></li></ul><h5 id="scripts-that-modify-the-page-as-it-is-being-parsed"><span class="secno">9.2.8.4 </span>Scripts that modify the page as it is being parsed</h5><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8208:
8209: <p><i>This section is non-normative.</i></p>
8210:
8211: <p>Consider the following markup, which for this example we will
8212: assume is the document with <a href="infrastructure.html#url">URL</a> <code title="">http://example.com/inner</code>, being rendered as the
1.159 mike 8213: content of an <code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code> in another document with the
1.1 mike 8214: <a href="infrastructure.html#url">URL</a> <code title="">http://example.com/outer</code>:</p>
8215:
8216: <pre><div id=a>
8217: <script>
8218: var div = document.getElementById('a');
8219: parent.document.body.appendChild(div);
8220: </script>
8221: <script>
8222: alert(document.URL);
8223: </script>
8224: </div>
8225: <script>
8226: alert(document.URL);
8227: </script></pre>
8228:
8229: <p>Up to the first "script" end tag, before the script is parsed,
8230: the result is relatively straightforward:</p>
8231:
1.306 mike 8232: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="semantics.html#the-div-element">div</a></code> <span class="t2" title=""><code class="attribute name">id</code>="<code class="attribute value"><a href="text-level-semantics.html#the-a-element">a</a></code>"</span><ul><li class="t3"><code>#text</code>: <span title="">
8233: </span></li><li class="t1"><code><a href="semantics.html#script">script</a></code><ul><li class="t3"><code>#text</code>: <span title="">var div = document.getElementById('a'); ⏎ parent.document.body.appendChild(div);</span></li></ul></li></ul></li></ul></li></ul></li></ul><p>After the script is parsed, though, the <code><a href="semantics.html#the-div-element">div</a></code> element
1.1 mike 8234: and its child <code><a href="semantics.html#script">script</a></code> element are gone:</p>
8235:
1.159 mike 8236: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code></li></ul></li></ul><p>They are, at this point, in the <code>Document</code> of the
1.1 mike 8237: aforementioned outer <a href="browsers.html#browsing-context">browsing context</a>. However, the
8238: <a href="#stack-of-open-elements">stack of open elements</a> <em>still contains the
1.306 mike 8239: <code><a href="semantics.html#the-div-element">div</a></code> element</em>.</p>
1.1 mike 8240:
8241: <p>Thus, when the second <code><a href="semantics.html#script">script</a></code> element is parsed, it
8242: is inserted <em>into the outer <code>Document</code>
8243: object</em>.</p>
8244:
8245: <p>This also means that the <a href="browsers.html#script-s-global-object">script's global object</a> is
8246: the outer <a href="browsers.html#browsing-context">browsing context</a>'s <code><a href="browsers.html#window">Window</a></code>
8247: object, <em>not</em> the <code><a href="browsers.html#window">Window</a></code> object inside the
1.159 mike 8248: <code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code>.</p>
1.1 mike 8249:
8250: <p class="note">This isn't a security problem since the script that
1.306 mike 8251: moves the <code><a href="semantics.html#the-div-element">div</a></code> into the outer <code>Document</code> can
1.714 mike 8252: only do so because the two <code>Document</code> object have the
8253: same <a href="browsers.html#origin">origin</a>.</p>
1.1 mike 8254:
8255: <p>Thus, the first alert says "http://example.com/outer".</p>
8256:
1.306 mike 8257: <p>Once the <code><a href="semantics.html#the-div-element">div</a></code> element's end tag is parsed, the
8258: <code><a href="semantics.html#the-div-element">div</a></code> element is popped off the stack, and so the next
1.1 mike 8259: <code><a href="semantics.html#script">script</a></code> element is in the inner <code>Document</code>:</p>
8260:
1.159 mike 8261: <ul class="domTree"><li class="t1"><code><a href="semantics.html#the-html-element-0">html</a></code><ul><li class="t1"><code><a href="semantics.html#the-head-element-0">head</a></code></li><li class="t1"><code><a href="semantics.html#the-body-element-0">body</a></code><ul><li class="t1"><code><a href="semantics.html#script">script</a></code><ul><li class="t3"><code>#text</code>: <span title="">alert(document.URL);</span></li></ul></li></ul></li></ul></li></ul><p>This second alert will say "http://example.com/inner".</p>
1.1 mike 8262:
8263:
8264:
1.614 mike 8265: <h3 id="namespaces"><span class="secno">9.3 </span>Namespaces</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8266:
8267: <p>The <dfn id="html-namespace-0">HTML namespace</dfn> is: <code>http://www.w3.org/1999/xhtml</code></p>
8268:
8269: <p>The <dfn id="mathml-namespace">MathML namespace</dfn> is: <code>http://www.w3.org/1998/Math/MathML</code></p>
8270:
8271: <p>The <dfn id="svg-namespace">SVG namespace</dfn> is: <code>http://www.w3.org/2000/svg</code></p>
8272:
8273: <p>The <dfn id="xlink-namespace">XLink namespace</dfn> is: <code>http://www.w3.org/1999/xlink</code></p>
8274:
8275: <p>The <dfn id="xml-namespace">XML namespace</dfn> is: <code>http://www.w3.org/XML/1998/namespace</code></p>
8276:
8277: <p>The <dfn id="xmlns-namespace">XMLNS namespace</dfn> is: <code>http://www.w3.org/2000/xmlns/</code></p>
8278:
8279: <hr><p>Data mining tools and other user agents that perform operations
1.605 mike 8280: on <code><a href="iana.html#text-html">text/html</a></code> content without running scripts,
1.1 mike 8281: evaluating CSS or XPath expressions, or otherwise exposing the
8282: resulting DOM to arbitrary content, may "support namespaces" by just
8283: asserting that their DOM node analogues are in certain namespaces,
8284: without actually exposing the above strings.</p>
8285:
8286:
8287:
8288:
1.614 mike 8289: <h3 id="serializing-html-fragments"><span class="secno">9.4 </span>Serializing HTML fragments</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8290:
8291: <p>The following steps form the <dfn id="html-fragment-serialization-algorithm">HTML fragment serialization
8292: algorithm</dfn>. The algorithm takes as input a DOM
8293: <code>Element</code> or <code>Document</code>, referred to as <var title="">the node</var>, and either returns a string or raises an
8294: exception.</p>
8295:
8296: <p class="note">This algorithm serializes the <em>children</em> of
8297: the node being serialized, not the node itself.</p>
8298:
8299: <ol><li><p>Let <var title="">s</var> be a string, and initialize it to
8300: the empty string.</p></li>
8301:
8302: <li>
8303:
8304: <p>For each child node of <var title="">the node</var>, in
8305: <a href="infrastructure.html#tree-order">tree order</a>, run the following steps:
8306:
8307: </p><ol><li><p>Let <var title="">current node</var> be the child node
8308: being processed.</p></li>
8309:
8310: <li>
8311:
8312: <p>Append the appropriate string from the following list to
8313: <var title="">s</var>:</p>
8314:
8315: <dl class="switch"><dt>If <var title="">current node</var> is an <code title="">Element</code></dt>
8316:
8317: <dd>
8318:
1.588 mike 8319: <p>Append a U+003C LESS-THAN SIGN character character (<),
8320: followed by the element's tag name. (For nodes created by the
8321: <a href="#html-parser">HTML parser</a> or <code title="">Document.createElement()</code>, the tag name will be
1.1 mike 8322: lowercase.)</p>
8323:
8324: <p>For each attribute that the element has, append a U+0020
8325: SPACE character, the attribute's name (which, for attributes
8326: set by the <a href="#html-parser">HTML parser</a> or by <code title="">Element.setAttributeNode()</code> or <code title="">Element.setAttribute()</code>, will be lowercase), a
1.588 mike 8327: U+003D EQUALS SIGN character (=), a U+0022 QUOTATION MARK
8328: character ("), the attribute's value, <a href="#escapingString" title="escaping a string">escaped as described below</a> in
8329: <i>attribute mode</i>, and a second U+0022 QUOTATION MARK
8330: character (").</p>
1.1 mike 8331:
8332: <p>While the exact order of attributes is UA-defined, and may
8333: depend on factors such as the order that the attributes were
8334: given in the original markup, the sort order must be stable,
8335: such that consecutive invocations of this algorithm serialize an
8336: element's attributes in the same order.</p>
8337:
1.588 mike 8338: <p>Append a U+003E GREATER-THAN SIGN character (>).</p>
1.1 mike 8339:
8340: <p>If <var title="">current node</var> is an
1.5 mike 8341: <code><a href="the-canvas-element.html#the-area-element">area</a></code>, <code><a href="semantics.html#the-base-element">base</a></code>, <code><a href="obsolete.html#basefont">basefont</a></code>,
1.1 mike 8342: <code>bgsound</code>, <code><a href="semantics.html#the-br-element">br</a></code>, <code><a href="tabular-data.html#the-col-element">col</a></code>,
1.159 mike 8343: <code><a href="text-level-semantics.html#the-embed-element">embed</a></code>, <code><a href="obsolete.html#frame">frame</a></code>, <code><a href="semantics.html#the-hr-element">hr</a></code>,
8344: <code><a href="text-level-semantics.html#the-img-element">img</a></code>, <code><a href="forms.html#the-input-element">input</a></code>, <code><a href="forms.html#the-keygen-element">keygen</a></code>,
1.589 mike 8345: <code><a href="semantics.html#the-link-element">link</a></code>, <code><a href="semantics.html#meta">meta</a></code>, <code><a href="text-level-semantics.html#the-param-element">param</a></code>, or
8346: <code>wbr</code> element, then continue on to the next child
8347: node at this point.</p> <!-- also, i guess: image and isindex,
8348: but we don't list those because we don't consider those
8349: "elements", more "macros", and thus we should never serialize
8350: them -->
1.1 mike 8351:
8352: <p>If <var title="">current node</var> is a <code><a href="semantics.html#the-pre-element">pre</a></code>,
1.42 mike 8353: <code><a href="forms.html#the-textarea-element">textarea</a></code>, or <code><a href="obsolete.html#listing">listing</a></code> element, append
1.1 mike 8354: a U+000A LINE FEED (LF) character.</p>
8355:
8356: <p>Append the value of running the <a href="#html-fragment-serialization-algorithm">HTML fragment
8357: serialization algorithm</a> on the <var title="">current
8358: node</var> element (thus recursing into this algorithm for
1.588 mike 8359: that element), followed by a U+003C LESS-THAN SIGN character
8360: (<), a U+002F SOLIDUS character (/), the element's tag name
8361: again, and finally a U+003E GREATER-THAN SIGN character
8362: (>).</p>
1.1 mike 8363:
8364: </dd>
8365:
8366:
8367: <dt>If <var title="">current node</var> is a <code title="">Text</code> or <code title="">CDATASection</code>
8368: node</dt>
8369:
8370: <dd>
8371:
1.19 mike 8372: <p>If the parent of <var title="">current node</var> is a
1.42 mike 8373: <code><a href="semantics.html#the-style-element">style</a></code>, <code><a href="semantics.html#script">script</a></code>, <code><a href="obsolete.html#xmp">xmp</a></code>,
1.159 mike 8374: <code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code>, <code><a href="obsolete.html#noembed">noembed</a></code>,
1.222 mike 8375: <code><a href="obsolete.html#noframes">noframes</a></code>, or <code><a href="obsolete.html#plaintext">plaintext</a></code> element, or
8376: if the parent of <var title="">current node</var> is
8377: <code><a href="semantics.html#the-noscript-element">noscript</a></code> element and <a href="browsers.html#concept-n-script" title="concept-n-script">scripting is enabled</a> for the
8378: node, then append the value of <var title="">current
8379: node</var>'s <code title="">data</code> IDL attribute
8380: literally.</p>
1.1 mike 8381:
8382: <p>Otherwise, append the value of <var title="">current
1.192 mike 8383: node</var>'s <code title="">data</code> IDL attribute, <a href="#escapingString" title="escaping a string">escaped as described
1.1 mike 8384: below</a>.</p>
8385:
8386: </dd>
8387:
8388:
8389: <dt>If <var title="">current node</var> is a <code title="">Comment</code></dt>
8390:
8391: <dd>
8392:
8393: <p>Append the literal string <code><!--</code> (U+003C
8394: LESS-THAN SIGN, U+0021 EXCLAMATION MARK, U+002D HYPHEN-MINUS,
1.192 mike 8395: U+002D HYPHEN-MINUS), followed by the value of <var title="">current node</var>'s <code title="">data</code> IDL
1.1 mike 8396: attribute, followed by the literal string <code>--></code>
8397: (U+002D HYPHEN-MINUS, U+002D HYPHEN-MINUS, U+003E GREATER-THAN
8398: SIGN).</p>
8399:
8400: </dd>
8401:
8402:
8403: <dt>If <var title="">current node</var> is a <code title="">ProcessingInstruction</code></dt>
8404:
8405: <dd>
8406:
8407: <p>Append the literal string <code><?</code> (U+003C
8408: LESS-THAN SIGN, U+003F QUESTION MARK), followed by the value
1.192 mike 8409: of <var title="">current node</var>'s <code title="">target</code> IDL attribute, followed by a single
8410: U+0020 SPACE character, followed by the value of <var title="">current node</var>'s <code title="">data</code> IDL
1.1 mike 8411: attribute, followed by a single U+003E GREATER-THAN SIGN
1.464 mike 8412: character (>).</p>
1.1 mike 8413:
8414: </dd>
8415:
8416:
8417: <dt>If <var title="">current node</var> is a <code title="">DocumentType</code></dt>
8418:
8419: <dd>
8420:
8421: <p>Append the literal string <code><!DOCTYPE</code> (U+003C
8422: LESS-THAN SIGN, U+0021 EXCLAMATION MARK, U+0044 LATIN CAPITAL
8423: LETTER D, U+004F LATIN CAPITAL LETTER O, U+0043 LATIN CAPITAL
8424: LETTER C, U+0054 LATIN CAPITAL LETTER T, U+0059 LATIN CAPITAL
8425: LETTER Y, U+0050 LATIN CAPITAL LETTER P, U+0045 LATIN CAPITAL
8426: LETTER E), followed by a space (U+0020 SPACE), followed by the
1.192 mike 8427: value of <var title="">current node</var>'s <code title="">name</code> IDL attribute, followed by the literal
1.1 mike 8428: string <code>></code> (U+003E GREATER-THAN SIGN).</p>
8429:
8430: </dd>
8431:
8432:
8433: </dl><p>Other node types (e.g. <code title="">Attr</code>) cannot
8434: occur as children of elements. If, despite this, they somehow do
8435: occur, this algorithm must raise an
8436: <code><a href="infrastructure.html#invalid_state_err">INVALID_STATE_ERR</a></code> exception.</p>
8437:
8438: </li>
8439:
8440: </ol></li>
8441:
8442: <li><p>The result of the algorithm is the string <var title="">s</var>.</p></li>
8443:
8444: </ol><p><dfn id="escapingString">Escaping a string</dfn> (for the
8445: purposes of the algorithm above) consists of replacing any
8446: occurrences of the "<code title="">&</code>" character by the
8447: string "<code title="">&amp;</code>", any occurrences of the
8448: U+00A0 NO-BREAK SPACE character by the string "<code title="">&nbsp;</code>", and, if the algorithm was invoked in
8449: the <i>attribute mode</i>, any occurrences of the "<code title="">"</code>" character by the string "<code title="">&quot;</code>", or if it was not, any occurrences of
8450: the "<code title=""><</code>" character by the string "<code title="">&lt;</code>", any occurrences of the "<code title="">></code>" character by the string "<code title="">&gt;</code>".</p>
8451:
8452: <p class="note">Entity reference nodes are <a href="infrastructure.html#entity-references">assumed to be expanded</a> by the user
8453: agent, and are therefore not covered in the algorithm above.</p>
8454:
8455: <p class="note">It is possible that the output of this algorithm, if
8456: parsed with an <a href="#html-parser">HTML parser</a>, will not return the
8457: original tree structure. For instance, if a <code><a href="forms.html#the-textarea-element">textarea</a></code>
8458: element to which a <code title="">Comment</code> node has been
8459: appended is serialized and the output is then reparsed, the comment
8460: will end up being displayed in the text field. Similarly, if, as a
8461: result of DOM manipulation, an element contains a comment that
8462: contains the literal string "<code title="">--></code>", then
8463: when the result of serializing the element is parsed, the comment
8464: will be truncated at that point and the rest of the comment will be
8465: interpreted as markup. More examples would be making a
8466: <code><a href="semantics.html#script">script</a></code> element contain a text node with the text string
8467: "<code></script></code>", or having a <code><a href="semantics.html#the-p-element">p</a></code> element that
8468: contains a <code><a href="semantics.html#the-ul-element">ul</a></code> element (as the <code><a href="semantics.html#the-ul-element">ul</a></code> element's
8469: <a href="#syntax-start-tag" title="syntax-start-tag">start tag</a> would imply the end
8470: tag for the <code><a href="semantics.html#the-p-element">p</a></code>).</p>
8471:
8472:
1.614 mike 8473: <h3 id="parsing-html-fragments"><span class="secno">9.5 </span>Parsing HTML fragments</h3><p class="XXX annotation"><b>Status: </b><i>Last call for comments</i></p>
1.1 mike 8474:
8475: <p>The following steps form the <dfn id="html-fragment-parsing-algorithm">HTML fragment parsing
8476: algorithm</dfn>. The algorithm optionally takes as input an
8477: <code>Element</code> node, referred to as the <var title="">context</var> element, which gives the context for the
8478: parser, as well as <var title="">input</var>, a string to parse, and
8479: returns a list of zero or more nodes.</p>
8480:
8481: <p class="note">Parts marked <dfn id="fragment-case">fragment case</dfn> in algorithms
8482: in the parser section are parts that only occur if the parser was
8483: created for the purposes of this algorithm (and with a <var title="">context</var> element). The algorithms have been annotated
8484: with such markings for informational purposes only; such markings
8485: have no normative weight. If it is possible for a condition
8486: described as a <a href="#fragment-case">fragment case</a> to occur even when the
8487: parser wasn't created for the purposes of handling this algorithm,
8488: then that is an error in the specification.</p>
8489:
8490: <ol><li>
8491:
8492: <p>Create a new <code>Document</code> node, and mark it as being
8493: an <a href="dom.html#html-documents" title="HTML documents">HTML document</a>.</p>
8494:
8495: </li>
8496:
8497: <li>
8498:
8499: <p>If there is a <var title="">context</var> element, and the
8500: <code>Document</code> of the <var title="">context</var> element
8501: is in <a href="dom.html#quirks-mode">quirks mode</a>, then let the <code>Document</code>
8502: be in <a href="dom.html#quirks-mode">quirks mode</a>. Otherwise, if there is a <var title="">context</var> element, and the <code>Document</code> of
8503: the <var title="">context</var> element is in <a href="dom.html#limited-quirks-mode">limited quirks
8504: mode</a>, then let the <code>Document</code> be in
8505: <a href="dom.html#limited-quirks-mode">limited quirks mode</a>. Otherwise, leave the
8506: <code>Document</code> in <a href="dom.html#no-quirks-mode">no quirks mode</a>.</p>
8507:
8508: </li>
8509:
8510: <li>
8511:
8512: <p>Create a new <a href="#html-parser">HTML parser</a>, and associate it with
8513: the just created <code>Document</code> node.</p>
8514:
8515: </li>
8516:
8517: <li>
8518:
8519: <p>If there is a <var title="">context</var> element, run these
8520: substeps:</p>
8521:
8522: <ol><li>
8523:
1.541 mike 8524: <p>Set the state of the <a href="#html-parser">HTML parser</a>'s
8525: <a href="#tokenization">tokenization</a> stage as follows:</p>
1.1 mike 8526:
1.159 mike 8527: <dl class="switch"><dt>If it is a <code><a href="semantics.html#the-title-element-0">title</a></code> or <code><a href="forms.html#the-textarea-element">textarea</a></code>
1.1 mike 8528: element</dt>
8529:
1.541 mike 8530: <dd>Switch the tokenizer to the <a href="#rcdata-state">RCDATA state</a>.</dd>
1.1 mike 8531:
8532:
1.672 mike 8533: <dt>If it is a <code><a href="semantics.html#the-style-element">style</a></code>, <code><a href="obsolete.html#xmp">xmp</a></code>,
8534: <code><a href="text-level-semantics.html#the-iframe-element">iframe</a></code>, <code><a href="obsolete.html#noembed">noembed</a></code>, or
1.5 mike 8535: <code><a href="obsolete.html#noframes">noframes</a></code> element</dt>
1.1 mike 8536:
1.541 mike 8537: <dd>Switch the tokenizer to the <a href="#rawtext-state">RAWTEXT state</a>.</dd>
1.1 mike 8538:
8539:
1.672 mike 8540: <dt>If it is a <code><a href="semantics.html#script">script</a></code> element</dt>
8541:
8542: <dd>Switch the tokenizer to the <a href="#script-data-state">script data state</a>.</dd>
8543:
8544:
1.1 mike 8545: <dt>If it is a <code><a href="semantics.html#the-noscript-element">noscript</a></code> element</dt>
8546:
1.541 mike 8547: <dd>If the <a href="#scripting-flag">scripting flag</a> is enabled, switch the
8548: tokenizer to the <a href="#rawtext-state">RAWTEXT state</a>. Otherwise,
8549: leave the tokenizer in the <a href="#data-state">data state</a>.</dd>
1.1 mike 8550:
8551:
1.42 mike 8552: <dt>If it is a <code><a href="obsolete.html#plaintext">plaintext</a></code> element</dt>
1.1 mike 8553:
1.541 mike 8554: <dd>Switch the tokenizer to the <a href="#plaintext-state">PLAINTEXT
8555: state</a>.</dd>
1.1 mike 8556:
8557:
8558: <dt>Otherwise</dt>
8559:
1.541 mike 8560: <dd>Leave the tokenizer in the <a href="#data-state">data state</a>.</dd>
1.1 mike 8561:
1.672 mike 8562: </dl><p class="note">For performance reasons, an implementation that
8563: uses the actual state machine described in this specification
8564: directly could use the PLAINTEXT state instead of the RAWTEXT
8565: and script data states where those are mentioned in the list
8566: above. They are equivalent, since there is no <a href="#appropriate-end-tag-token">appropriate
8567: end tag token</a> in the fragment case, but involve far fewer
8568: state transitions.</p>
8569:
8570: </li>
1.1 mike 8571:
8572: <li>
8573:
1.159 mike 8574: <p>Let <var title="">root</var> be a new <code><a href="semantics.html#the-html-element-0">html</a></code> element
1.1 mike 8575: with no attributes.</p>
8576:
8577: </li>
8578:
8579: <li>
8580:
8581: <p>Append the element <var title="">root</var> to the
8582: <code>Document</code> node created above.</p>
8583:
8584: </li>
8585:
8586: <li>
8587:
8588: <p>Set up the parser's <a href="#stack-of-open-elements">stack of open elements</a> so that
8589: it contains just the single element <var title="">root</var>.</p>
8590:
8591: </li>
8592:
8593: <li>
8594:
8595: <p><a href="#reset-the-insertion-mode-appropriately" title="reset the insertion mode appropriately">Reset the
8596: parser's insertion mode appropriately</a>.</p>
8597:
8598: <p class="note">The parser will reference the <var title="">context</var> element as part of that algorithm.</p>
8599:
8600: </li>
8601:
8602: <li>
8603:
8604: <p>Set the parser's <a href="#form-element-pointer"><code>form</code> element pointer</a>
8605: to the nearest node to the <var title="">context</var> element
8606: that is a <code><a href="forms.html#the-form-element">form</a></code> element (going straight up the
8607: ancestor chain, and including the element itself, if it is a
8608: <code><a href="forms.html#the-form-element">form</a></code> element), or, if there is no such
8609: <code><a href="forms.html#the-form-element">form</a></code> element, to null.</p>
8610:
8611: </li>
8612:
8613: </ol></li>
8614:
8615: <li>
8616:
8617: <p>Place into the <a href="#the-input-stream">input stream</a> for the <a href="#html-parser">HTML
8618: parser</a> just created the <var title="">input</var>. The
8619: encoding <a href="#concept-encoding-confidence" title="concept-encoding-confidence">confidence</a> is
8620: <i>irrelevant</i>.</p>
8621:
8622: </li>
8623:
8624: <li>
8625:
8626: <p>Start the parser and let it run until it has consumed all the
8627: characters just inserted into the input stream.</p>
8628:
8629: </li>
8630:
8631: <li>
8632:
8633: <p>If there is a <var title="">context</var> element, return the
8634: child nodes of <var title="">root</var>, in <a href="infrastructure.html#tree-order">tree
8635: order</a>.</p>
8636:
8637: <p>Otherwise, return the children of the <code>Document</code>
8638: object, in <a href="infrastructure.html#tree-order">tree order</a>.</p>
8639:
8640: </li>
8641:
1.123 mike 8642: </ol></div></body></html>
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