[#55853] ruby 1.9.3 p448 breaks ABI — V咜 Ondruch <v.ondruch@...>

Hi,

13 messages 2013/07/08

[#55951] [ruby-trunk - Bug #8625][Open] IO#read(len, buf) shortens buf even if data is not read actually — "no6v (Nobuhiro IMAI)" <nov@...>

10 messages 2013/07/11

[#55976] [ruby-trunk - Feature #8629][Open] Method#parameters should include the default value — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

13 messages 2013/07/12

[#55985] [ruby-trunk - Feature #8631][Open] Add a new method to ERB to allow assigning the local variables from a hash — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

19 messages 2013/07/12

[#56004] [ruby-trunk - Feature #8636][Open] Documentation hosting on ruby-lang.org — "zzak (Zachary Scott)" <e@...>

18 messages 2013/07/15

[#56019] [ruby-trunk - Feature #8639][Open] Add Queue#each — "avdi (Avdi Grimm)" <avdi@...>

15 messages 2013/07/15

[#56027] [CommonRuby - Feature #8640][Open] Add Time#elapsed to return nanoseconds since creation — "tenderlovemaking (Aaron Patterson)" <aaron@...>

24 messages 2013/07/15

[#56041] [CommonRuby - Feature #8643][Open] Add Binding.from_hash — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

26 messages 2013/07/16

[#56087] [ruby-trunk - Feature #8658][Open] Process.clock_gettime — "akr (Akira Tanaka)" <akr@...>

23 messages 2013/07/19

[#56096] [CommonRuby - Feature #8661][Open] Add option to print backstrace in reverse order(stack frames first & error last) — "gary4gar (Gaurish Sharma)" <gary4gar@...>

18 messages 2013/07/20

[#56193] [ruby-trunk - Bug #8693][Open] lambda invoked by yield acts as a proc with respect to return — "rits (First Last)" <redmine@...>

33 messages 2013/07/26

[#56274] [ruby-trunk - Bug #8709][Open] Dir.glob should return sorted file list — "tommorris (Tom Morris)" <tom@...>

19 messages 2013/07/30

[ruby-core:55986] Re: [ruby-trunk - Bug #8630][Open] Transcoding high-bit bytes from ASCII-8BIT to a text encoding should be :invalid, not :undef

From: Tanaka Akira <akr@...>
Date: 2013-07-12 21:26:44 UTC
List: ruby-core #55986
2013/7/13 headius (Charles Nutter) <[email protected]>:
> Bug #8630: Transcoding high-bit bytes from ASCII-8BIT to a text encoding =
should be :invalid, not :undef
> https://bugs.ruby-lang.org/issues/8630

> When transcoding from ASCII-8BIT (BINARY) to a text encoding (e.g. UTF-8)=
, MRI will raise an error for high-bit bytes:
>
> "\xC3".encode("utf-8", "binary") # =3D> Encoding::UndefinedConversionErro=
r
>
> This can be disabled by passing :undef =3D> :replace as an option to the =
encode call.
>
> I believe that "undef" is the wrong treatment for this error. Undef means=
 that the input character has no representation in the target encoding. In =
this case, the error is raised because only US-ASCII range of bytes are *va=
lid* for transcoding, so the transcoding of high-bit bytes is by definition=
 *invalid*, not undefined. In other words, high-bit bytes in ASCII-8BIT/BIN=
ARY are *invalid* as characters.

No.

ASCII-8BIT consists 128 ASCII characters and 128 special characters to
represent 0x80 to 0xff binary bytes.
The special characters are not representable in UTF-8.
So UndefinedConversionError is raised.

The validity of a characetr is defined by encoding, not transcoding.
--=20
Tanaka Akira

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