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Bug #5863

closed

Integer#chr may return a string with multiple characters

Added by john_firebaugh (John Firebaugh) over 12 years ago. Updated over 12 years ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]
Backport:
[ruby-core:41972]

Description

=begin
Is this a bug?

256.chr("SHIFT_JIS").length #=> 2

I think so, as it means that #chr and #ord can't be treated as inverses, and is generally confusing.

If not, the documentation for #chr should be changed, as it implies that the returned string is always a single character.
=end

Related issues 2 (0 open — 2 closed)

Related to Ruby master - Bug #5855: inconsistent treatment of 8 bit characters in US-ASCIIClosednaruse (Yui NARUSE)01/07/2012Actions
Has duplicate Ruby master - Bug #5864: Integer#chr raises on some invalid codepoints but returns an invalidly-encoded string for othersClosed01/08/2012Actions
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 #1

Updated by naruse (Yui NARUSE) over 12 years ago

  • Status changed from Open to Closed
  • % Done changed from 0 to 100

This issue was solved with changeset r34236.
John, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

  • numeric.c (rb_enc_uint_char): raise RangeError when added codepoint
    is invalid. [Feature #5855] [Bug #5863] [Bug #5864]

  • string.c (rb_str_concat): ditto.

  • string.c (rb_str_concat): set encoding as ASCII-8BIT when the string
    is US-ASCII and the argument is an integer greater than 127.

  • regenc.c (onigenc_mb2_code_to_mbclen): rearrange error code.

  • enc/euc_jp.c (code_to_mbclen): ditto.

  • enc/shift_jis.c (code_to_mbclen): ditto.

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