[Webkit-unassigned] [Bug 50366] XPath lexer misinterprets expression starting with "div".

Wed Dec 1 23:00:47 PST 2010

https://bugs.webkit.org/show_bug.cgi?id=50366

Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
           Severity|Minor                       |Normal
           Priority|P3                          |P2
                 CC|                            |ap at webkit.org
     Ever Confirmed|0                           |1

--- Comment #2 from Alexey Proskuryakov <ap at webkit.org>  2010-12-01 23:00:47 PST ---
The only text in the spec I can see that's related is this disambiguation rule in <http://www.w3.org/TR/xpath/#exprlex>:

"Otherwise, the token must not be recognized as a MultiplyOperator, an OperatorName, a NodeType, a FunctionName, or an AxisName."

I'm not sure how exactly to interpret this - there is no case that allows an OperatorName in disambiguation rules! The proposed patch agrees with common sense, but may be operating at a level that's different from what's implied by the spec.

> Does anyone know what tests I should add for this?

See existing tests in LayoutTests/fast/xpath, for example document-order.html or complex-id.html. The most recent changes to this file didn't affect observed behavior, so they didn't have regression tests.

Besides 'div', there should be a test for 'mod'.

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