[Webkit-unassigned] [Bug 50708] New: Parse error during XSLT transformation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50708

           Summary: Parse error during XSLT transformation
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: XML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jasminlapalme at me.com


Created an attachment (id=75951)
 --> (https://bugs.webkit.org/attachment.cgi?id=75951&action=review)
Archive containing test case and patch

There is a bug in WebCore where Safari is unable to render an HTML web page created by an XSLT transformation from an XML file and an XSLT stylesheet.

To reproduce, open test.xml (in the zip archive in attachment) in Safari (Mac OS X 10.6 or Safari Mobile on iPad or iPhone). There will be a message like this :
---
This page contains the following errors:

error on line 1 at column 1: Extra content at the end of the document
Below is a rendering of the page up to the first error.

This document was created as the result of an XSL transformation. The line and column numbers given are from the transformed result.
---

By examining the source code, I found that it is caused by faulty conversion from UTF-8 to UTF-16 in WebCore. The conversion convert chunks of UTF-8 data, but does not treat the case where the end of the chunk is in the middle of a multibyte UTF-8 character.

I am attaching a patch to fix this case (utf8_conversion.patch)

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