[Webkit-unassigned] [Bug 122891] New: Yarr does not compile Peacekeeper email validation regex

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122891

           Summary: Yarr does not compile Peacekeeper email validation
                    regex
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jdemooij at mozilla.com


Created an attachment (id=214358)
 --> (https://bugs.webkit.org/attachment.cgi?id=214358&action=review)
Shell testcase

I'm attaching a simple shell version of Peacekeeper's stringValidateForm test.

The good news is that Yarr is able to compile 4 of the 5 regular expressions. The bad news is that the other regex is interpreted and this slows us down. If I run the test in Safari it takes 1200 ms, with the email regex commented out it's 460 ms so the slow regex is where we spend most of our time on this test.

The email validation part is this:

    input = "jaakko.alajoki at futuremark.com";
    result = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(input);

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