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Python parse tree definitions.

This is a very concrete parse tree; we need to keep every token and
even the comments and whitespace between tokens.

There's also a pattern matching implementation here.
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    Abstract base class for Node and Leaf.

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        pattern doesn't have any matches.
        N(R*Ri(RRi((s&/usr/lib64/python2.7/lib2to3/pytree.pyRT=s	cCstS(N(R'(RR7((s&/usr/lib64/python2.7/lib2to3/pytree.pyRpJscCst|�dkS(Ni(Rd(RRq((s&/usr/lib64/python2.7/lib2to3/pytree.pyRrNsccse|jdkr2t|�dkradifVqan/x!|jj|�D]
\}}dSWdifVdS(Ni(RiR*RdRs(RRqRzRo((s&/usr/lib64/python2.7/lib2to3/pytree.pyRsRsN(RIRJR*RTRpRrRs(((s&/usr/lib64/python2.7/lib2to3/pytree.pyR�;s
		c	cs�|sdifVn�|d|d}}x�|j|�D]s\}}|sY||fVq9xPt|||�D];\}}i}|j|�|j|�|||fVqmWq9WdS(sR
    Generator yielding matches for a sequence of patterns and nodes.

    Args:
        patterns: a sequence of patterns
        nodes: a sequence of nodes

    Yields:
        (count, results) tuples where:
        count: the entire sequence of patterns matches nodes[:count];
        results: dict containing named submatches.
        iiN(RsRm(	tpatternsRqtptrestR�R�R�R�Ro((s&/usr/lib64/python2.7/lib2to3/pytree.pyRs^s
 

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