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Pêáac@sdZdZddlZddlZddlmZdZiad„Zdefd„ƒYZ	d	e	fd
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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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        Compare two nodes for equality.

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„ZeeeƒZRS(s'Concrete implementation for leaf nodes.R\icCsŠd|kodkns(t|ƒ‚|dk	rR|\|_\|_|_n||_||_|dk	r|||_n||_dS(s—
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            name: optional name assigned to this match

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        Generator yielding matches for a sequence of nodes.

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            results: dict containing named submatches.
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        Initializer.

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    Generator yielding matches for a sequence of patterns and nodes.

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