[Webkit-unassigned] [Bug 122850] New: Avoid iterating over all the isolate characters

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Oct 15 12:21:22 PDT 2013


           Summary: Avoid iterating over all the isolate characters
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: mitz at webkit.org, enrica at apple.com,
                    igor.oliveira at webkit.org, mmaxfield at apple.com

Consider merging https://chromium.googlesource.com/chromium/blink/+/496b731fbfccba1a4ac26e44a34e0e8ea70b0a80

Isolate elements are treated as neutral in UBA however Blink UBA implementation iterates over all the isolate characters.
The purpose of this patch is reduce the algorithm complexity skipping isolate elements when found in the UBA. 
Additionaly, rename the pastEnd variable to lastParagraphEnded.

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