From: noreply@...
Date: 2007-03-12T19:42:57+09:00
Subject: [ ruby-Bugs-9200 ] Problem with long regular expressions

Bugs item #9200, was opened at 12/03/2007 10:42
You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=1698&aid=9200&group_id=426

Category: None
Group: 1.8.5
Status: Open
Resolution: None
Priority: 3
Submitted By: Alessandro Morandi (simbul)
Assigned to: Nobody (None)
Summary: Problem with long regular expressions

Initial Comment:
I noticed a bug when working with very long regexps (around 32000 chars).

A simple regexp like /hello|AAAAAAAA/ does not match "hello" anymore when the number of "A"s is greater than 32258.

Usually, when a regexp is too long to be managed, Ruby issues a "regular expression too big" exception, but in this case it just stops working correctly, without any warning.

A test case is attached.
The bug has been verified on both Windows and Mac OSX.

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You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=1698&aid=9200&group_id=426