[Subversion] / PEAK-Rules / Syntax-Matching.txt  

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version 2673, Tue Aug 17 01:25:45 2010 UTC version 2705, Tue Sep 6 00:20:18 2011 UTC
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 predicates against snippets of parameterized Python code, such that a  predicates against snippets of parameterized Python code, such that a
 rule expression like::  rule expression like::
   
     syntax.match(expr, type(`x`) is `y`) and y in Const      syntax.match(expr, type(`x`) is `y`) and isinstance(y, Const)
   
 Will return true if ``expr`` is a PEAK-Rules AST of the form::  Will return true if ``expr`` is a PEAK-Rules AST of the form::
   

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