From: Yui NARUSE <redmine@...>
Date: 2010-09-16T21:28:20+09:00
Subject: [ruby-core:32427] [Ruby 1.9-Bug#3838] regexp for unicode property under windows

Issue #3838 has been updated by Yui NARUSE.


\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 `<main>'
irb(main):002:0> /\p{Lu}/u
=> /\p{Lu}/
----------------------------------------
http://redmine.ruby-lang.org/issues/show/3838

----------------------------------------
http://redmine.ruby-lang.org