[Webkit-unassigned] [Bug 96844] New: sign in front of keyframe selector causes stylesheet parsing to abort

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=96844

           Summary: sign in front of keyframe selector causes stylesheet
                    parsing to abort
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: simon.fraser at apple.com
                CC: dino at apple.com, zherczeg at webkit.org


A keyframes rule like:

@-webkit-keyframes fade {
    -10% { background-color: blue; }
    100% { background-color: green; }
}

will cause stylesheet parsing to abort.

I don't understand why, since the 'key' production is using PERCENTAGE, which is a <number>, which should accept signs.

I think this is a problem in the lexer code.

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