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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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setdefault(ttype_numRtnametval((s&/usr/lib64/python2.7/lib2to3/pytree.pyt	type_reprstBasecBsûeZdZdZdZdZeZeZ	d„Z
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    Abstract base class for Node and Leaf.

    This provides some default functionality and boilerplate using the
    template pattern.

    A node may be a subnode of at most one parent.
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tj|ƒS(s7Constructor that prevents Base from being instantiated.(tobjectt__new__(tclstargstkwds((s&/usr/lib64/python2.7/lib2to3/pytree.pyR2scCs#|j|jk	rtS|j|ƒS(sW
        Compare two nodes for equality.

        This calls the method _eq().
        (t	__class__tNotImplementedt_eq(tselftother((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__eq__7scCs$|j|jk	rtS|j|ƒS(sY
        Compare two nodes for inequality.

        This calls the method _eq().
        (RRR(RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__ne__CscCs
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        Compare two nodes for equality.

        This is called by __eq__ and __ne__.  It is only called if the two nodes
        have the same type.  This must be implemented by the concrete subclass.
        Nodes should be considered equal if they have the same structure,
        ignoring the prefix string and other context information.
        N(tNotImplementedError(RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyRMs	cCs
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        Return a cloned (deep) copy of self.

        This must be implemented by the concrete subclass.
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        Return a post-order iterator for the tree.

        This must be implemented by the concrete subclass.
        N(R(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyt
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        Return a pre-order iterator for the tree.

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        Set the prefix for the node (see Leaf class).

        DEPRECATED; use the prefix property directly.
        s3set_prefix() is deprecated; use the prefix propertyt
stackleveliN(twarningstwarntDeprecationWarningtprefix(RR"((s&/usr/lib64/python2.7/lib2to3/pytree.pyt
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        Return the prefix for the node (see Leaf class).

        DEPRECATED; use the prefix property directly.
        s3get_prefix() is deprecated; use the prefix propertyRi(RR R!R"(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyt
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cCs¿t|tƒs|g}ng}t}xR|jjD]D}||krk|dk	rb|j|ƒnt}q4|j|ƒq4W|jj	ƒ||j_x|D]}|j|_qœWd|_dS(s/Replace this node with a new one in the parent.N(
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cCs=|}x-t|tƒs5|js%dS|jd}q	W|jS(s9Return the line number which generated the invocant node.Ni(R%tLeafR)tlineno(Rtnode((s&/usr/lib64/python2.7/lib2to3/pytree.pyt
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        Remove the node from the tree. Returns the position of the node in its
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        The node immediately following the invocant in their parent's children
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        The node immediately preceding the invocant in their parent's children
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        Return the string immediately following the invocant node. This is
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„Zd„ZRS(s+Concrete implementation for interior nodes.cCsm||_t|ƒ|_x|jD]}||_q"W|dk	rM||_n|r`||_n	d|_dS(sð
        Initializer.

        Takes a type constant (a symbol number >= 256), a sequence of
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        N(RR&R)R(R*R"tfixers_applied(RRR)tcontextR"RRR2((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__init__ós
	

cCs#d|jjt|jƒ|jfS(s)Return a canonical string representation.s
%s(%s, %r)(RRIRRR)(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__repr__scCsdjtt|jƒƒS(sk
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        u(tjointmapRFR)(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__unicode__siicCs"|j|jf|j|jfkS(sCompare two nodes for equality.(RR)(RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyRscCs5t|jg|jD]}|jƒ^qd|jƒS(s$Return a cloned (deep) copy of self.RR(RQRR)RRR(RR2((s&/usr/lib64/python2.7/lib2to3/pytree.pyR!s+ccs9x-|jD]"}x|jƒD]}|VqWq
W|VdS(s*Return a post-order iterator for the tree.N(R)R(RR>R7((s&/usr/lib64/python2.7/lib2to3/pytree.pyR&s
ccs9|Vx-|jD]"}x|jƒD]}|Vq"WqWdS(s)Return a pre-order iterator for the tree.N(R)R(RR>R7((s&/usr/lib64/python2.7/lib2to3/pytree.pyR-scCs|js
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        The whitespace and comments preceding this node in the input.
        ti(R)R"(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyt_prefix_getter4s	cCs |jr||jd_ndS(Ni(R)R"(RR"((s&/usr/lib64/python2.7/lib2to3/pytree.pyt_prefix_setter<s	cCs4||_d|j|_||j|<|jƒdS(s…
        Equivalent to 'node.children[i] = child'. This method also sets the
        child's parent attribute appropriately.
        N(R(R*R)R.(RR;R>((s&/usr/lib64/python2.7/lib2to3/pytree.pyt	set_childBs	
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        Equivalent to 'node.children.insert(i, child)'. This method also sets
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        Equivalent to 'node.children.append(child)'. This method also sets the
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        N(R(R)R-R.(RR>((s&/usr/lib64/python2.7/lib2to3/pytree.pytappend_childUs	N(ii(RIRJRKR*RTRURXRORPRHRRRRRZR[RNR"R\R^R_(((s&/usr/lib64/python2.7/lib2to3/pytree.pyRQïs$										
		R5cBsªeZdZdZdZdZddgd„Zd„Zd„Z	e
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„ZeeeƒZRS(s'Concrete implementation for leaf nodes.RYicCsb|dk	r*|\|_\|_|_n||_||_|dk	rT||_n||_dS(s—
        Initializer.

        Takes a type constant (a token number < 256), a string value, and an
        optional context keyword argument.
        N(R*t_prefixR6tcolumnRtvalueRR(RRRbRSR"RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyRThs		cCsd|jj|j|jfS(s)Return a canonical string representation.s
%s(%r, %r)(RRIRRb(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRU{scCs|jt|jƒS(sk
        Return a pretty string representation.

        This reproduces the input source exactly.
        (R"RFRb(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRXsicCs"|j|jf|j|jfkS(sCompare two nodes for equality.(RRb(RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyRŒscCs4t|j|j|j|j|jffd|jƒS(s$Return a cloned (deep) copy of self.RR(R5RRbR"R6RaRR(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRsccs	|VdS(N((R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRA–sccs	|VdS(s*Return a post-order iterator for the tree.N((R((s&/usr/lib64/python2.7/lib2to3/pytree.pyR™sccs	|VdS(s)Return a pre-order iterator for the tree.N((R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRscCs|jS(sP
        The whitespace and comments preceding this token in the input.
        (R`(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRZ¡scCs|jƒ||_dS(N(R.R`(RR"((s&/usr/lib64/python2.7/lib2to3/pytree.pyR[§s
N(ii(RIRJRKR`R6RaR*RTRURXRORPRHRRRARRRZR[RNR"(((s&/usr/lib64/python2.7/lib2to3/pytree.pyR5_s&										cCsk|\}}}}|s'||jkrTt|ƒdkrA|dSt||d|ƒSt||d|ƒSdS(sõ
    Convert raw node information to a Node or Leaf instance.

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    strictly bottom-up.
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number2symboltlenRQR5(tgrtraw_nodeRRbRSR)((s&/usr/lib64/python2.7/lib2to3/pytree.pytconvert­stBasePatterncBs\eZdZdZdZdZd„Zd„Zd„Z	dd„Z
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    A pattern is a tree matching pattern.

    It looks for a specific node type (token or symbol), and
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    This is an abstract base class.  There are three concrete
    subclasses:

    - LeafPattern matches a single leaf node;
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    - WildcardPattern matches a sequence of nodes of variable length.
    cOs
tj|ƒS(s>Constructor that prevents BasePattern from being instantiated.(RR(RRR((s&/usr/lib64/python2.7/lib2to3/pytree.pyRÕscCsht|jƒ|j|jg}x!|rA|ddkrA|d=q!Wd|jjdjtt	|ƒƒfS(Niÿÿÿÿs%s(%s)s, (
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        Does this pattern exactly match a node?

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        Default implementation for non-wildcard patterns.
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        Does this pattern exactly match a sequence of nodes?

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        Generator yielding all matches for this pattern.

        Default implementation for non-wildcard patterns.
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        Initializer.  Takes optional type, content, and name.

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        Match the pattern's content to the node's children.

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        Initializer.  Takes optional type, content, and name.

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        non-leaf nodes that also match the content pattern.

        The content, if not None, must be a sequence of Patterns that
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        Match the pattern's content to the node's children.

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    A wildcard pattern can match zero or more nodes.

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    except it always uses non-greedy matching.
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        Initializer.

        Args:
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            min: optional minimum number of times to match, default 0
            max: optional maximum number of times to match, default HUGE
            name: optional name assigned to this match

        [*] Thus, if content is [[a, b, c], [d, e], [f, g, h]] this is
            equivalent to (a b c | d e | f g h); if content is None,
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            The min and max parameters work as follows:
                min=0, max=maxint: .*
                min=1, max=maxint: .+
                min=0, max=1: .?
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			cCs/d}|jdk	rWt|jƒdkrWt|jdƒdkrW|jdd}n|jdkr¿|jdkr¿|jdkr”td|jƒS|dk	r¿|j|jkr¿|jƒSn|jdkr+t|t	ƒr+|jdkr+|j|jkr+t	|j|j|j|j|j|jƒS|S(s+Optimize certain stacked wildcard patterns.iiR
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	ccsŒ|jdkrsxvt|jdtt|ƒ|jƒƒD]4}i}|jra|| ||j<n||fVq8Wn|jdkr“|j|ƒVnõtt	dƒrºt	j
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        Generator yielding matches for a sequence of nodes.

        Args:
            nodes: sequence of nodes

        Yields:
            (count, results) tuples where:
            count: the match comprises nodes[:count];
            results: dict containing named submatches.
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	ccs`t|ƒ}d|jkr)difVng}xO|jD]D}x;t||ƒD]*\}}||fV|j||fƒqOWq9WxØ|r[g}x¿|D]·\}}	||kr—||jkr—x|jD]}xvt|||ƒD]a\}
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)cCs›d}i}t}t|ƒ}x_|r||krt}x?|jD]4}|dj|||ƒrD|d7}t}PqDqDWq!W|| ||j<||fS(s(Special optimized matcher for bare_name.ii(R'RdR,RiRpR
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c	csÁ||jkrdifVn||jkr½xŽ|jD]€}xwt||ƒD]f\}}xW|j|||dƒD];\}}i}|j|ƒ|j|ƒ|||fVqsWqLWq6WndS(s(Helper to recursively yield the matches.iiN(R}R~RiRsR†Rm(	RRqR‰RRRŽRRRo((s&/usr/lib64/python2.7/lib2to3/pytree.pyR†,s'

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        Initializer.

        The argument is either a pattern or None.  If it is None, this
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    Generator yielding matches for a sequence of patterns and nodes.

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