Bug 51645

Summary: REGRESSION: Testing a string with a regex of the form /(?:x|^)$/ crashes WebKit
Product: WebKit Reporter: Nate Whetsell <nathan.whetsell>
Component: JavaScriptCoreAssignee: Michael Saboff <msaboff>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: barraclough, ggaren, msaboff
Priority: P1 Keywords: Regression
Version: 528+ (Nightly build)   
Hardware: PC   
OS: OS X 10.6   
URL: http://www.html5rocks.com/tutorials/file/dndfiles/
Attachments:
Description Flags
Test document none

Nate Whetsell
Reported 2010-12-27 07:21:57 PST
Created attachment 77506 [details] Test document Testing a string against a regex of the form /(?:x|^)$/, where x can be any character, crashes WebKit. There can be any number of things separated by |'s. The crash seems to be triggered when the non-capturing parentheses include a ^ and are followed by a $. Also, it seems that the parentheses must be non-capturing. A regular expression like this gets used in the html5rocks.com website. I'm also attaching a reduced version that just tests a string against /(?:x|^)$/.
Attachments
Test document (148 bytes, text/html)
2010-12-27 07:21 PST, Nate Whetsell 		no flags
Details
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Michael Saboff
Comment 1 2010-12-31 21:42:45 PST
I am not able to reproduce this bug in recent changeset 74813. I suspect that this is a duplicate of another bug, possibly https://bugs.webkit.org/show_bug.cgi?id=51284 but I can't reproduce at this time. Will try to reproduce.
Michael Saboff
Comment 2 2011-01-03 15:27:49 PST
*** This bug has been marked as a duplicate of bug 51284 ***
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