[Webkit-unassigned] [Bug 55520] New: Regexp functionality regression

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=55520

           Summary: Regexp functionality regression
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://tinymce.moxiecode.com/safari/regexp.html
        OS/Version: Windows 7
            Status: UNCONFIRMED
          Severity: Blocker
          Priority: P5
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: spam at moxiecode.com


Regexps doesn't work correctly in the current nightly build. The attached page url will test a complex regexp it's currently failing in WebKit nightly but works on older versions before WebKit-r72493 so this was the point it was introduced it also works on other browsers so this is a clear regression.

Steps to reproduce:
1. Open the attached URL in latest WebKit nightly.
2. Press the test link.
3. Observe the alert message about the regexp match failing.
4. Compare to older versions before WebKit-r72493 and other browsers all are passing.

It seems to have something to do with back references in Regexps but I didn't dig to deep in it.

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