From: David Ellis <redmine@...>
Date: 2009-03-24T15:16:12+09:00
Subject: [ruby-core:23009] [Bug #1312] String#rindex(Regexp, offset) doesn't seem to match greedily

Bug #1312: String#rindex(Regexp, offset) doesn't seem to match greedily
http://redmine.ruby-lang.org/issues/show/1312

Author: David Ellis
Status: Open, Priority: Normal
ruby -v: ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-darwin9.6.0]

I may be wrong but I was expecting:
"abcdefg    ".rindex(/\w+/,10)
to return 0.

This is what actually happens:
irb(main):003:0> "abcdefg    ".rindex(/\w+/,10)
=> 6
irb(main):004:0> $~
=> #<MatchData "g">
irb(main):005:0> $~[0]
=> "g"
irb(main):006:0> $~.offset(0)
=> [6, 7]

The Regexp seems to match in a non-greedy way. The /\w+/ only matches the "g". I was expecting it to be greedy and match "abcdefg" and return 0 instead of 6.

Please correct me if I'm wrong in my expectation.

Thank you,

David


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