Bug #5126: Unicode character classes interpolated into regex throws exception

• Status: Closed
• Assignee: -
• Target version: 1.9.3
• ruby -v: ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-darwin10.7.0]

[xaviershay (Xavier Shay)]

The following script runs under 1.9.2-p290:

# encoding: UTF-8
letter = '\p{L}'
atext = "[#{letter}]"
/#{atext}/

Under 1.9.3-preview1 it raises an exception:

test.rb:6:in `<main>': invalid character property name {L}: /[\p{L}]/ (RegexpError)

The interpolation is necessary to reproduce this bug, unicode character classes work fine when entered directly into the regex.

JRuby has a similar bug: http://jira.codehaus.org/browse/JRUBY-5622

This technique is used in datamapper to build a regex for matching emails:
https://github.com/datamapper/dm-validations/blob/master/lib/dm-validations/formats/email.rb

[naruse (Yui NARUSE)]

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

This issue was solved with changeset r32791.
Xavier, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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• insns.def (concatstrings): don't use initial ASCII-8BIT string.
  [ruby-core:38635] [Bug #5126]