Bug #3838: regexp for unicode property under windows

• Status: Rejected
• Assignee: naruse (Yui NARUSE)
• Target version: 1.9.2
• ruby -v: ruby 1.9.2p0 (2010-08-18) [i386-mingw32]

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•Ruby 1.9.2-p0 RubyInstaller (md5: 21bf42f7ec4b8a831c947d656509cddb) Stable version

such regexp will cause an error: /\p{Lu}/

irb(main):002:0> /\p{Han}/
SyntaxError: (irb):2: invalid character property name {Han}: /\p{Han}/
from C:/Ruby192/bin/irb:12:in <main>' irb(main):003:0> /\p{Lu}/ SyntaxError: (irb):3: invalid character property name {Lu}: /\p{Lu}/ from C:/Ruby192/bin/irb:12:in '
irb(main):004:0>

while this is all right: /\p{Alpha}/

irb(main):001:0> /\p{Alpha}/
=> /\p{Alpha}/
=end

[naruse (Yui NARUSE)]

• Category set to M17N
• Status changed from Open to Assigned
• Assignee set to naruse (Yui NARUSE)

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=end

[naruse (Yui NARUSE)]

=begin
\p{Lu} and \p{Han} is Unicode Property for Unicode regexps.

Where the locale is not UTF-8, the encoding of regexp literal given from irb is that encoding.
It means the regexp literal's encoding is not UTF-8 (Windows-1252 for example on English version of Windows).

You can avoid this problem by explicitly specify the encoding as UTF-8 by /u modifier like:

% echo $LANG
C
% ~/local/ruby/bin/irb
irb(main):001:0> /\p{Lu}/
SyntaxError: (irb):1: invalid character property name {Lu}: /\p{Lu}/
from /home/naruse/local/ruby/bin/irb:12:in `'
irb(main):002:0> /\p{Lu}/u
=> /\p{Lu}/
=end

[naruse (Yui NARUSE)]

• Status changed from Assigned to Rejected

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