JRuby

Regex string interpolation breaks unicode properties

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: JRuby 1.6
  • Fix Version/s: JRuby 1.6.4, JRuby 1.7.0.pre1
  • Component/s: None
  • Labels:
    None
  • Environment:
    osx snow leopard
  • Testcase included:
    yes
  • Number of attachments :
    0

Description

String interpolation into regexes appears to break unicode property names.
This script works under MRI 1.9.2.

{{# encoding: UTF-8

  1. The following two scenarios work
    puts /[\p {L}]/u
    puts /[#{"
    p{L}

    "}]/u

  1. this one raises an exception
  2. RegexpError: (RegexpError) invalid character property name {L}: /\p{L}

    /
    b = "
    p

    {L}

    "
    puts /[#

    {b}

    ]/u}}

This is currently preventing datamapper from running on jruby 1.9, because it uses this technique in dm-validations to validate email addresses.

Activity

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Xavier Shay added a comment -

I fail at formatting .... here is a gist with the test case:

https://gist.github.com/5dd56997b3e5a8b9eee6

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Xavier Shay added a comment - I fail at formatting .... here is a gist with the test case: https://gist.github.com/5dd56997b3e5a8b9eee6
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Lucas Hills added a comment -

Random 1 in a million.. I'm supposed to be at the ruby meeting in melb where you are right now Xavier. But instead I'm working and had just logged into here to report the same bug you already have..

My stack trace is a little different but pretty sure it's the same bug as this one:

http://stackoverflow.com/questions/5492960/regex-errorjavajavalangarrayindexoutofboundsexception-4-on-3-character-non/5493461#5493461

Show
Lucas Hills added a comment - Random 1 in a million.. I'm supposed to be at the ruby meeting in melb where you are right now Xavier. But instead I'm working and had just logged into here to report the same bug you already have.. My stack trace is a little different but pretty sure it's the same bug as this one: http://stackoverflow.com/questions/5492960/regex-errorjavajavalangarrayindexoutofboundsexception-4-on-3-character-non/5493461#5493461
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Xavier Shay added a comment -

Just an update that this bug is still present in 1.6.3, and it's just been introduced into ruby 1.9.3-preview1 as well

http://redmine.ruby-lang.org/issues/5126

Hopefully it ends up being a similar fix for both.

For context, this technique is used in DataMapper to build up a regex to validate email addresses:
https://github.com/datamapper/dm-validations/blob/master/lib/dm-validations/formats/email.rb

Show
Xavier Shay added a comment - Just an update that this bug is still present in 1.6.3, and it's just been introduced into ruby 1.9.3-preview1 as well http://redmine.ruby-lang.org/issues/5126 Hopefully it ends up being a similar fix for both. For context, this technique is used in DataMapper to build up a regex to validate email addresses: https://github.com/datamapper/dm-validations/blob/master/lib/dm-validations/formats/email.rb
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Nick Sieger added a comment -

Fixed in 70b3b99 on master and fcb28016 on jruby-1_6.

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Nick Sieger added a comment - Fixed in 70b3b99 on master and fcb28016 on jruby-1_6.

People

  • Assignee:
    Nick Sieger
    Reporter:
    Xavier Shay
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Dates

  • Created:
    Updated:
    Resolved: