Current File : //usr/local/lib/python2.7/lib2to3/patcomp.pyc
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Pêáac @ så d Z d Z d d l Z d d l m Z m Z m Z m Z m Z m Z d d l
m Z d d l
m Z d e
f d „ ƒ YZ d
„ Z d e f d „ ƒ YZ i e j d
6e j d 6e j d 6d d 6Z d „ Z d „ Z d „ Z d S( s Pattern compiler.
The grammar is taken from PatternGrammar.txt.
The compiler compiles a pattern to a pytree.*Pattern instance.
s# Guido van Rossum <guido@python.org>iÿÿÿÿNi ( t drivert literalst tokent tokenizet parset grammar( t pytree( t pygramt PatternSyntaxErrorc B s e Z RS( ( t __name__t
__module__( ( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyR s c c sw t t j t j t j f ƒ } t j t j | ƒ j ƒ } x7 | D]/ } | \ } } } } } | | k r@ | Vq@ q@ Wd S( s6 Tokenizes a string suppressing significant whitespace.N( t setR t NEWLINEt INDENTt DEDENTR t generate_tokenst StringIOt readline( t inputt skipt tokenst quintuplet typet valuet startt endt line_text( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyt tokenize_wrapper s
t PatternCompilerc B sA e Z d d „ Z e e d „ Z d „ Z d d „ Z d „ Z RS( c C s… | d k r' t j | _ t j | _ n' t j | ƒ | _ t j | j ƒ | _ t j | _
t j | _ t j
| j d t ƒ| _ d S( s^ Initializer.
Takes an optional alternative filename for the pattern grammar.
t convertN( t NoneR t pattern_grammarR t pattern_symbolst symsR t load_grammart Symbolst python_grammart pygrammart python_symbolst pysymst Drivert pattern_convert( t selft grammar_file( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyt __init__( s c C s} t | ƒ } y | j j | d | ƒ} Wn( t j k
rR } t t | ƒ ƒ ‚ n X| rl | j | ƒ | f S| j | ƒ Sd S( s= Compiles a pattern string to a nested pytree.*Pattern object.t debugN( R R t parse_tokensR t
ParseErrorR t strt compile_node( R* R R- t with_treeR t roott e( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyt compile_pattern7 s c C sÊ | j | j j k r% | j d } n | j | j j k rÁ g | j d d d … D] } | j | ƒ ^ qQ } t | ƒ d k r† | d St j g | D] } | g ^ q“ d d d d ƒ} | j ƒ S| j | j j
k r=g | j D] } | j | ƒ ^ qà } t | ƒ d k r| d St j | g d d d d ƒ} | j ƒ S| j | j j k r| j | j d ƒ } t j
| ƒ } | j ƒ S| j | j j k sœt ‚ d } | j } t | ƒ d k rí| d j t j k rí| d j } | d } n d }
t | ƒ d k r5| d j | j j k r5| d }
| d } n | j | |
ƒ } |
d k r¨|
j | j j k snt ‚ |
j } | d } | j t j k r¥d }
t j } n¸ | j t j k rÉd }
t j } n” | j t j k rQ| d j t j k s÷t ‚ t | ƒ d
k st ‚ | j | d ƒ }
} t | ƒ d k r]| j | d ƒ } q]n t s]t ‚ |
d k su| d k r¨| j ƒ } t j | g g d |
d | ƒ} q¨n | d k rÀ| | _ n | j ƒ S( sX Compiles a node, recursively.
This is one big switch on the node type.
i Ni i t mint maxi iÿÿÿÿi ( i i ( R R! t Matchert childrent AlternativesR1 t lenR t WildcardPatternt optimizet Alternativet NegatedUnitt
compile_basict NegatedPatternt Unitt AssertionErrorR R t EQUALR t Repeatert STARt HUGEt PLUSt LBRACEt RBRACEt get_intt Falset name( R* t nodet cht altst at pt unitst patternRM t nodest repeatR9 t childR6 R7 ( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyR1 C sh 21
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t | ƒ S| d k rç d } nF | j d ƒ s-t | j | d ƒ } | d k r-t d | ƒ ‚ q-n | d rW| j | d j d ƒ g } n d } t j | | ƒ Sns | j d k r| j | d ƒ S| j d k rã| d k s±t ‚ | j | d ƒ } t j | g g d
d d d ƒSt sõt | ƒ ‚ d S( Ni i s Invalid token: %rs Can't have details for tokent anyt _s Invalid symbol: %rt (t [R6 R7 ( R; RC R R t STRINGt unicodeR t
evalStringR R t LeafPatternt _type_of_literalt NAMEt isuppert TOKEN_MAPR R t
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G #Ra R\ Ri t TOKENc C s9 | d j ƒ r t j S| t j k r1 t j | Sd Sd S( Ni ( t isalphaR Ra R t opmapR ( R ( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyR` ¹ s
c C sW | \ } } } } | s' | | j k r= t j | | d | ƒSt j | | d | ƒSd S( s9 Converts raw node information to a Node or Leaf instance.t contextN( t
number2symbolR t Nodet Leaf( R t
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__author__R t pgen2R R R R R R t R R t ExceptionR R t objectR Ra R\ Ri R Rc R` R) R5 ( ( ( s+ /usr/local/lib/python2.7/lib2to3/patcomp.pyt <module> s .
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