[webkit-dev] HTML5 tokenizer landing soon

Oliver Hunt oliver at apple.com
Mon Jun 14 11:05:14 PDT 2010


Have you done perf testing? What's the change?

--Oliver

On Jun 13, 2010, at 10:21 PM, Adam Barth wrote:

> People of WebKit,
> 
> As mentioned recently on webkit-dev, Eric, Tonyg, and I have been
> working on implementing the HTML5 parsing algorithm in WebKit:
> 
> http://www.mail-archive.com/webkit-dev@lists.webkit.org/msg11472.html
> 
> We're now ready to turn the new tokenization algorithm on by default
> (probably early this week).  The new code passes all the existing
> LayoutTests, with the exception of roughly 40 tests that "expect"
> behavior that violates the HTML5 specification [1].
> 
> There are some differences between the old parser and the HTML5
> parser.  We've written up a brief document outlining those
> differences:
> 
> https://docs.google.com/document/edit?id=1as5xYjyMSCph4960iz0-Kb7hZKf_L6f2vts57NMcVBI&hl=en
> 
> If these differences cause real compatibility issues on the web, we
> should contribute this information to the working group so we can
> improve the specification.  If these differences cause compatibility
> issues for WebKit-specific HTML (e.g., for Dashboard widgets), we
> might need to add a flag to support some subset of these parsing
> quirks for non-web uses of WebKit.
> 
> Please be on the lookout for parsing-related regressions and CC Eric,
> Tonyg, and me on the bugs.  There's still a lot of work to do
> (including implementing the tree construction algorithm), but turning
> the tokenization code on by default is an important milestone for the
> project.
> 
> Happy parsing,
> Adam
> 
> [1] See https://spreadsheets.google.com/ccc?key=0AppchfQ5mBrEdDFJUW5DOGNsdmtvZkN0ZmIzMjdaT0E&hl=en
> for details.
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