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The grammer is taken from PatternGrammar.txt.
The compiler compiles a pattern to a pytree.*Pattern instance.
u# Guido van Rossum <guido@python.org>i Ni ( u driveru literalsu tokenu tokenizeu parseu grammar( u pytree( u pygramu PatternGrammar.txtc B s | Ee Z d Z d S( u PatternSyntaxErrorN( u __name__u
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__locals__( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu PatternSyntaxError s u PatternSyntaxErrorc c sw t t j t j t j f � } t j t j | � j � } x7 | D]/ } | \ } } } } } | | k r@ | Vq@ q@ Wd S( u6 Tokenizes a string suppressing significant whitespace.N(
u setu tokenu NEWLINEu INDENTu DEDENTu tokenizeu generate_tokensu iou StringIOu readline( u inputu skipu tokensu quintupleu typeu valueu startu endu line_text( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu tokenize_wrapper! s
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| j d t �| _ d S( u^ Initializer.
Takes an optional alternative filename for the pattern grammar.
u convertN( u driveru load_grammaru grammaru pygramu Symbolsu symsu python_grammaru pygrammaru python_symbolsu pysymsu Driveru pattern_convert( u selfu grammar_file( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu __init__- s
u PatternCompiler.__init__c C s� t | � } y | j j | d | �} Wn: t j k
rd } z t t | � � � WYd d } ~ Xn X| r~ | j | � | f S| j | � Sd S( u= Compiles a pattern string to a nested pytree.*Pattern object.u debugN( u tokenize_wrapperu driveru parse_tokensu parseu
ParseErroru PatternSyntaxErroru stru compile_node( u selfu inputu debugu with_treeu tokensu rootu e( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu compile_pattern8 s %u PatternCompiler.compile_patternc
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k rl� j | j d d � � } t j | � } | j � Sd } | j } t | � d k r�| d j t j k r�| d j } | d d � } n d } t | � d k r| d
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j t j k r�� j | d � } } t | � d k r�� j | d � } q�n | d k s�| d k r)| j � } t j | g g d | d | �} q)n | d k rA| | _ n | j � S( uX Compiles a node, recursively.
This is one big switch on the node type.
i c s g | ] } � j | � � q S( ( u compile_node( u .0u ch( u self( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu
<listcomp>P s u0 PatternCompiler.compile_node.<locals>.<listcomp>Ni i c S s g | ] } | g � q S( ( ( u .0u a( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu
<listcomp>S s u minu maxc s g | ] } � j | � � q S( ( u compile_node( u .0u ch( u self( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu
<listcomp>W s i i i����i����i����( u typeu symsu Matcheru childrenu Alternativesu lenu pytreeu WildcardPatternu optimizeu Alternativeu NegatedUnitu
compile_basicu NegatedPatternu Noneu tokenu EQUALu valueu Repeateru STARu HUGEu PLUSu LBRACEu get_intu name(
u selfu nodeu altsu pu unitsu patternu nameu nodesu repeatu childrenu childu minu max( ( u selfu4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu compile_nodeD s^ )(
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d | � � qn | d d � rK| j | d j d � g } n d } t j | | � Sna | j d k r�| j | d � S| j d k r�| j | d � } t j | g g d
d d d �Sd S( Ni u Invalid token: %ri u Can't have details for tokenu anyu _u Invalid symbol: %ru (u [u minu max( u typeu tokenu STRINGu stru literalsu
evalStringu valueu pytreeu LeafPatternu _type_of_literalu NAMEu isupperu TOKEN_MAPu PatternSyntaxErroru Noneu
startswithu getattru pysymsu compile_nodeu childrenu NodePatternu WildcardPattern( u selfu nodesu repeatu nodeu valueu typeu contentu
subpattern( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu
compile_basic� s8
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t | j � S( N( u intu value( u selfu node( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu get_int� s u PatternCompiler.get_intNF( u __name__u
__module__u __qualname__u _PATTERN_GRAMMAR_FILEu __init__u Falseu compile_patternu compile_nodeu Noneu
compile_basicu get_int( u
__locals__( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu PatternCompiler+ s
G#u PatternCompileru NAMEu STRINGu NUMBERu TOKENc C s9 | d j � r t j S| t j k r1 t j | Sd Sd S( Ni ( u isalphau tokenu NAMEu grammaru opmapu None( u value( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu _type_of_literal� s
u _type_of_literalc C sW | \ } } } } | s' | | j k r= t j | | d | �St j | | d | �Sd S( u9 Converts raw node information to a Node or Leaf instance.u contextN( u
number2symbolu pytreeu Nodeu Leaf( u grammaru
raw_node_infou typeu valueu contextu children( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu pattern_convert� s u pattern_convertc C s t � j | � S( N( u PatternCompileru compile_pattern( u pattern( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu compile_pattern� s u compile_pattern( u __doc__u
__author__u iou osu pgen2u driveru literalsu tokenu tokenizeu parseu grammaru u pytreeu pygramu pathu joinu dirnameu __file__u _PATTERN_GRAMMAR_FILEu Exceptionu PatternSyntaxErroru tokenize_wrapperu objectu PatternCompileru NAMEu STRINGu NUMBERu Noneu TOKEN_MAPu _type_of_literalu pattern_convertu compile_pattern( ( ( u4 /opt/alt/python33/lib64/python3.3/lib2to3/patcomp.pyu <module> s$ .
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