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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.
s#Guido van Rossum <guido@python.org>i����N(tStringIOi���cCshtsXddlm}x?|jj�D]+\}}t|�tkr&|t|<q&q&Wntj||�S(Ni(tpython_symbols(t_type_reprstpygramRt__dict__titemsttypetintt
setdefault(ttype_numRtnametval((s&/usr/lib64/python2.7/lib2to3/pytree.pyt	type_reprstBasecBs�eZdZdZdZdZeZeZ	d�Z
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    Abstract base class for Node and Leaf.

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        Compare two nodes for equality.

        This calls the method _eq().
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        Compare two nodes for inequality.

        This calls the method _eq().
        (RRR(RR((s&/usr/lib64/python2.7/lib2to3/pytree.pyt__ne__CscCs
t�dS(s_
        Compare two nodes for equality.

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        Nodes should be considered equal if they have the same structure,
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        Return a cloned (deep) copy of self.

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        N(R(R((s&/usr/lib64/python2.7/lib2to3/pytree.pytcloneXscCs
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        Return a post-order iterator for the tree.

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

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cCs2|jdk	s!tt|���|dk	s3t�t|t�sN|g}ng}t}xt|jjD]f}||kr�|s�t|jj||f��|dk	r�|j|�nt	}qg|j
|�qgW|s�t|j||f��|jj�||j_x|D]}|j|_qWd|_dS(s/Replace this node with a new one in the parent.N(tparenttNoneRtstrt
isinstancetlisttFalsetchildrentextendtTruetappendtchanged(Rtnewt
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cCs=|}x-t|t�s5|js%dS|jd}q	W|jS(s9Return the line number which generated the invocant node.Ni(R)tLeafR,tlineno(Rtnode((s&/usr/lib64/python2.7/lib2to3/pytree.pyt
get_lineno�s	cCs&|jr|jj�nt|_dS(N(R&R0R.twas_changed(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyR0�s	cCsf|jrbxVt|jj�D]?\}}||kr|jj�|jj|=d|_|SqWndS(s�
        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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        iiN(R&R'R<R,(RR=R@((s&/usr/lib64/python2.7/lib2to3/pytree.pytprev_sibling�sccs4x-|jD]"}x|j�D]}|VqWq
WdS(N(R,tleaves(RR@R5((s&/usr/lib64/python2.7/lib2to3/pytree.pyRC�scCs$|jdkrdSd|jj�S(Nii(R&R'tdepth(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRD�scCs |j}|dkrdS|jS(s�
        Return the string immediately following the invocant node. This is
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�Zd�ZRS(s+Concrete implementation for interior nodes.cCs�|dkst|��||_t|�|_x;|jD]0}|jdksatt|���||_q:W|dk	r�||_n|r�||_n	d|_dS(s�
        Initializer.

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
cCs#d|jjt|j�|jfS(s)Return a canonical string representation.s
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W|VdS(s*Return a post-order iterator for the tree.N(R,R(RR@R9((s&/usr/lib64/python2.7/lib2to3/pytree.pyR&s
ccs9|Vx-|jD]"}x|j�D]}|Vq"WqWdS(s)Return a pre-order iterator for the tree.N(R,R(RR@R9((s&/usr/lib64/python2.7/lib2to3/pytree.pyR-scCs|js
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        The whitespace and comments preceding this node in the input.
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        Equivalent to 'node.children[i] = child'. This method also sets the
        child's parent attribute appropriately.
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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
        child's parent attribute appropriately.
        N(R&R,R/R0(RR@((s&/usr/lib64/python2.7/lib2to3/pytree.pytappend_childUs	N(ii(RKRLRMR'RWRXR[RQRRRJRRRRR]R^RPR#R_RaRb(((s&/usr/lib64/python2.7/lib2to3/pytree.pyRS�s$										
		R7cBs�eZdZdZdZdZddgd�Zd�Zd�Z	e
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�Zeee�ZRS(s'Concrete implementation for leaf nodes.R\icCs�d|kodkns(t|��|dk	rR|\|_\|_|_n||_||_|dk	r|||_n||_dS(s�
        Initializer.

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        iiN(RR't_prefixR8tcolumnRtvalueRU(RRReRVR#RU((s&/usr/lib64/python2.7/lib2to3/pytree.pyRWhs
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%s(%r, %r)(RRKRRe(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyRX{scCs|jt|j�S(sk
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        The whitespace and comments preceding this token in the input.
        (Rc(R((s&/usr/lib64/python2.7/lib2to3/pytree.pyR]�scCs|j�||_dS(N(R0Rc(RR#((s&/usr/lib64/python2.7/lib2to3/pytree.pyR^�s
N(ii(RKRLRMRcR8RdR'RWRXR[RQRRRJRRRCRRR]R^RPR#(((s&/usr/lib64/python2.7/lib2to3/pytree.pyR7_s&										cCsk|\}}}}|s'||jkrTt|�dkrA|dSt||d|�St||d|�SdS(s�
    Convert raw node information to a Node or Leaf instance.

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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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        Does this pattern exactly match a node?

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        Does this pattern exactly match a sequence of nodes?

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        Generator yielding all matches for this pattern.

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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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N(RKRLR'RWRrRn(((s&/usr/lib64/python2.7/lib2to3/pytree.pyRvstNodePatterncBs,eZeZdddd�Zdd�ZRS(cCs�|dk	r'|dks't|��n|dk	r�t|t�sUtt|���t|�}xYt|�D]H\}}t|t�s�t||f��t|t�rnt	|_
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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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        Initializer.

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            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,
            this is equivalent to '.' in regular expression terms.
            The min and max parameters work as follows:
                min=0, max=maxint: .*
                min=1, max=maxint: .+
                min=0, max=1: .?
                min=1, max=1: .
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%			cCs/d}|jdk	rWt|j�dkrWt|jd�dkrW|jdd}n|jdkr�|jdkr�|jdkr�td|j�S|dk	r�|j|jkr�|j�Sn|jdkr+t|t	�r+|jdkr+|j|jkr+t	|j|j|j|j|j|j�S|S(s+Optimize certain stacked wildcard patterns.iiR
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