Bug #7610: Incompatible with percent literal regexp between 1.9.3 and 2.0.0

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.0.0dev (2012-12-23 trunk 38571) [x86_64-darwin11.4.2]

[sanemat (Kenichi Murahashi)]

=begin
Percent literal regexp brings SyntaxError with parenthesis. If I use | as separator, then it works fine, but I use () as separator, then it does not work.

$ ruby -v
ruby 2.0.0dev (2012-12-23 trunk 38571) [x86_64-darwin11.4.2]
$ irb
irb(main):001:0> %r([phone])
SyntaxError: (irb):1: unmatched close parenthesis: /[phone]</telephoneNumber>/
from /Users/sane/.rbenv/versions/2.0.0-dev/bin/irb:12:in `'
irb(main):003:0> %r|[phone]|
=> /[phone]</telephoneNumber>/

$ ruby -v
ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-darwin11.4.2]
$ irb
irb(main):001:0> %r([phone])
=> /[phone]</telephoneNumber>/
irb(main):002:0> %r|[phone]|
=> /[phone]</telephoneNumber>/
=end

[sanemat (Kenichi Murahashi)]

Percent literal regexp brings SyntaxError with parenthesis. If I use | as separator, then it works fine, but I use () as separator, then it does not work.

$ ruby -v
ruby 2.0.0dev (2012-12-23 trunk 38571) [x86_64-darwin11.4.2]
$ irb
irb(main):001:0> %r([phone])
SyntaxError: (irb):1: unmatched close parenthesis: /[phone]</telephoneNumber>/
from /Users/sane/.rbenv/versions/2.0.0-dev/bin/irb:12:in `'
irb(main):003:0> %r|[phone]|
=> /[phone]</telephoneNumber>/

$ ruby -v
ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-darwin11.4.2]
$ irb
irb(main):001:0> %r([phone])
=> /[phone]</telephoneNumber>/
irb(main):002:0> %r|[phone]|
=> /[phone]</telephoneNumber>/

[nobu (Nobuyoshi Nakada)]

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

This issue was solved with changeset r38663.
Kenichi, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

parse.y: escaped closing parenthsis

• parse.y (simple_re_meta): escaped closing parenthsis has different
  meaning. [Bug #7610] [ruby-core:51088]

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)