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Bug #19476

closed

Regexp unexpected partial match

Added by andreccosta (André Costa) over 1 year ago. Updated over 1 year ago.

Status:
Closed
Target version:
-
ruby -v:
ruby 3.2.1 (2023-02-08 revision 31819e82c8) [arm64-darwin22]
[ruby-core:112683]

Description

This regular expression does not have the expected match since Ruby 3.2.

Ruby 3.2.1:

> RUBY_VERSION
=> "3.2.1"
> "123456789".match(/(\(?\d-?\)?){6,15}/)
=> #<MatchData "123456" 1:"6">
> "123456789".match(/(\d-?\)?){6,}/)
=> #<MatchData "123456" 1:"6">

Results in a partial match even though the specified quantifiers should allow matching the whole string.

Ruby 3.1.3:

> RUBY_VERSION
=> "3.1.3"
> "123456789".match(/(\(?\d-?\)?){6,15}/)
=> #<MatchData "123456789" 1:"9">
> "123456789".match(/(\d-?\)?){6,}/)
=> #<MatchData "123456789" 1:"9">

Which is the outcome for both patterns in previous versions.

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