Bug #3681: Character class abbreviations, + repetition notation and group backreferences issue in Regexp

• Status: Closed
• Assignee: naruse (Yui NARUSE)
• Target version: -
• ruby -v: ruby 1.9.3dev (2010-08-17 trunk 29020) [x86_64-freebsd8.1]

[dre3k (Andrei Kulakov)]

=begin
There seems to be a bug in Ruby 1.9.2 rc2 regarding Regular Expression

/([A-Z][a-z]+){2}/ =~ 'TestString' # => 0 #correct
/([A-Z]\w+){2}/ =~ 'TestString' # => nil #should be 0
/(A-Z+){2}/ =~ 'TestString' # => 0 #correct
/(A-Z+){2}/ =~ 'TestString' # => nil #should be 0
/([A-Z]\w{1,10}){2}/ =~ 'TestString' # => 0 #correct
/([A-Z]\w{1,}){2}/ =~ 'TestString' # => nil #should be 0

Ruby 1.9.1 p429 yields correct result

/([A-Z][a-z]+){2}/ =~ 'TestString' # => 0 #correct
/([A-Z]\w+){2}/ =~ 'TestString' # => 0 #correct
/(A-Z+){2}/ =~ 'TestString' # => 0 #correct
/(A-Z+){2}/ =~ 'TestString' # => 0 #correct
/([A-Z]\w{1,10}){2}/ =~ 'TestString' # => 0 #correct
/([A-Z]\w{1,}){2}/ =~ 'TestString' # => 0 #correct
=end

[naruse (Yui NARUSE)]

• Assignee set to naruse (Yui NARUSE)
• ruby -v set to ruby 1.9.3dev (2010-08-17 trunk 29020) [x86_64-freebsd8.1]

=begin
I can reproduce this, I'll fix it.
=end

[naruse (Yui NARUSE)]

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

=begin
This issue was solved with changeset r29023.
Andrei, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end