[Webkit-unassigned] [Bug 178521] New: Test262: RegExp/property-escapes/generated/Emoji_Component.js fails with current RegExp Unicode Properties implementation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=178521

            Bug ID: 178521
           Summary: Test262:
                    RegExp/property-escapes/generated/Emoji_Component.js
                    fails with current RegExp Unicode Properties
                    implementation
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: msaboff at apple.com

The test262 test JSTests/test262/test/built-ins/RegExp/property-escapes/generated/Emoji_Component.js fails with the current implementation of RegExp Unicode Properties.  The failure is:
Exception: Test262Error: `\P{Emoji_Component}` should match U+00200D (`‍`)

I had some discussion with Mathias Bynens, who wrote both the Unicode Properties spec change proposal and this test, about a week ago.  He stated that this area of the Unicode Properties spec is still being revised.

We should fix our implementation if needed when the spec and / or tests are finalized.

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