1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "SimpleLexer.h"
#include <cplusplus/ObjectiveCTypeQualifiers.h>
#include <cplusplus/Lexer.h>
#include <cplusplus/Token.h>
#include <QDebug>
using namespace CPlusPlus;
SimpleLexer::SimpleLexer()
: _lastState(0),
_skipComments(false),
_endedJoined(false),
_ppMode(false)
{}
SimpleLexer::~SimpleLexer()
{ }
bool SimpleLexer::skipComments() const
{
return _skipComments;
}
void SimpleLexer::setSkipComments(bool skipComments)
{
_skipComments = skipComments;
}
bool SimpleLexer::endedJoined() const
{
return _endedJoined;
}
Tokens SimpleLexer::operator()(const QString &text, int state)
{
Tokens tokens;
const QByteArray bytes = text.toUtf8();
const char *firstChar = bytes.constData();
const char *lastChar = firstChar + bytes.size();
Lexer lex(firstChar, lastChar);
lex.setExpectedRawStringSuffix(_expectedRawStringSuffix);
lex.setLanguageFeatures(_languageFeatures);
lex.setStartWithNewline(true);
lex.setPreprocessorMode(_ppMode);
if (! _skipComments)
lex.setScanCommentTokens(true);
if (state != -1)
lex.setState(state & 0xff);
bool inPreproc = false;
for (;;) {
Token tk;
lex(&tk);
if (tk.is(T_EOF_SYMBOL)) {
_endedJoined = tk.joined();
break;
}
const QStringView spell = tk.utf16charsBegin() + tk.utf16chars() > text.size()
? QStringView(text).mid(tk.utf16charsBegin())
: QStringView(text).mid(tk.utf16charsBegin(), tk.utf16chars());
lex.setScanAngleStringLiteralTokens(false);
if (tk.newline() && tk.is(T_POUND))
inPreproc = true;
else if (inPreproc && tokens.size() == 1 && tk.is(T_IDENTIFIER) &&
spell == QLatin1String("include"))
lex.setScanAngleStringLiteralTokens(true);
else if (inPreproc && tokens.size() == 1 && tk.is(T_IDENTIFIER) &&
spell == QLatin1String("include_next"))
lex.setScanAngleStringLiteralTokens(true);
else if (_languageFeatures.objCEnabled
&& inPreproc && tokens.size() == 1 && tk.is(T_IDENTIFIER) &&
spell == QLatin1String("import"))
lex.setScanAngleStringLiteralTokens(true);
tokens.append(tk);
}
_lastState = lex.state();
_expectedRawStringSuffix = lex.expectedRawStringSuffix();
return tokens;
}
int SimpleLexer::tokenAt(const Tokens &tokens, int utf16charsOffset)
{
for (int index = tokens.size() - 1; index >= 0; --index) {
const Token &tk = tokens.at(index);
if (tk.utf16charsBegin() <= utf16charsOffset && tk.utf16charsEnd() >= utf16charsOffset)
return index;
}
return -1;
}
Token SimpleLexer::tokenAt(const QString &text,
int utf16charsOffset,
int state,
const LanguageFeatures &languageFeatures)
{
SimpleLexer tokenize;
tokenize.setLanguageFeatures(languageFeatures);
const QVector<Token> tokens = tokenize(text, state);
const int tokenIdx = tokenAt(tokens, utf16charsOffset);
return (tokenIdx == -1) ? Token() : tokens.at(tokenIdx);
}
int SimpleLexer::tokenBefore(const Tokens &tokens, int utf16charsOffset)
{
for (int index = tokens.size() - 1; index >= 0; --index) {
const Token &tk = tokens.at(index);
if (tk.utf16charsBegin() <= utf16charsOffset)
return index;
}
return -1;
}
|
