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pgen2
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Editing: driver.pyo
� { fc @ s d Z d Z d d g Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l m Z m Z m Z m Z m Z d e f d � � YZ d � Z d d e e d d � Z d � Z d � Z d � Z e d k r e j e e � � � n d S( sZ Parser driver. This provides a high-level interface to parse a file into a syntax tree. s# Guido van Rossum <guido@python.org>t Drivert load_grammari����Ni ( t grammart parset tokent tokenizet pgenc B sV e Z d d d � Z e d � Z e d � Z e d � Z d e d � Z e d � Z RS( c C s: | | _ | d k r$ t j � } n | | _ | | _ d S( N( R t Nonet loggingt getLoggert loggert convert( t selfR R R ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt __init__ s c C s t j | j | j � } | j � d } d } d } } } } } d } x�| D]�} | \ } } } } } | | | f k r� | \ } } | | k r� | d | | 7} | } d } n | | k r� | | | | !7} | } q� n | t j t j f k r6| | 7} | \ } } | j d � rQ | d 7} d } qQ qQ n | t j k rUt j | } n | r~| j j d t j | | | � n | j | | | | f � r�| r�| j j d � n Pn d } | \ } } | j d � rQ | d 7} d } qQ qQ Wt j d | | | | f � � | j S( s4 Parse a series of tokens and return the syntax tree.i i u s s %s %r (prefix=%r)s Stop.t s incomplete inputN( R t ParserR R t setupR R t COMMENTt NLt endswithR t OPt opmapR t debugt tok_namet addtokent ParseErrort rootnode( R t tokensR t pt linenot columnt typet valuet startt endt line_textt prefixt quintuplet s_linenot s_column( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt parse_tokens' sR c C s" t j | j � } | j | | � S( s* Parse a stream and return the syntax tree.( R t generate_tokenst readlineR( ( R t streamR R ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt parse_stream_rawW s c C s | j | | � S( s* Parse a stream and return the syntax tree.( R, ( R R+ R ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt parse_stream\ s c C s; t j | d | � } z | j | | � SWd | j � Xd S( s( Parse a file and return the syntax tree.t rN( t codecst openR- t close( R t filenamet encodingR R+ ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt parse_file` s c C s+ t j t j | � j � } | j | | � S( s* Parse a string and return the syntax tree.( R R) t StringIOR* R( ( R t textR R ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt parse_stringh s N( t __name__t __module__R R t FalseR( R, R- R4 R7 ( ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyR s 0 c C sR t j j | � \ } } | d k r- d } n | | d j t t t j � � d S( Ns .txtR t .s .pickle( t ost patht splitextt joint mapt strt syst version_info( t gtt headt tail( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt _generate_pickle_namen s s Grammar.txtc C s� | d k r t j � } n | d k r3 t | � n | } | sO t | | � r� | j d | � t j | � } | r� | j d | � y | j | � Wq� t k r� } | j d | � q� Xq� n t j � } | j | � | S( s' Load the grammar (maybe from a pickle).s! Generating grammar tables from %ss Writing grammar tables to %ss Writing failed: %sN( R R R RG t _newert infoR t generate_grammart dumpt IOErrorR t Grammart load( RD t gpt savet forceR t gt e( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyR u s c C sN t j j | � s t St j j | � s, t St j j | � t j j | � k S( s0 Inquire whether file a was written since file b.( R< R= t existsR: t Truet getmtime( t at b( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyRH � s c C sc t j j | � r t | � St t j j | � � } t j | | � } t j � } | j | � | S( s� Normally, loads a pickled grammar by doing pkgutil.get_data(package, pickled_grammar) where *pickled_grammar* is computed from *grammar_source* by adding the Python version and using a ``.pickle`` extension. However, if *grammar_source* is an extant file, load_grammar(grammar_source) is called instead. This facilitates using a packaged grammar file when needed but preserves load_grammar's automatic regeneration behavior when possible. ( R< R= t isfileR RG t basenamet pkgutilt get_dataR RM t loads( t packaget grammar_sourcet pickled_namet dataRR ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt load_packaged_grammar� s c G sc | s t j d } n t j d t j d t j d d � x$ | D] } t | d t d t �q? Wt S( s� Main program, when run as a script: produce grammar pickle files. Calls load_grammar for each argument, a path to a grammar text file. i t levelR+ t formats %(message)sRP RQ ( RB t argvR t basicConfigt INFOt stdoutR RU ( t argsRD ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt main� s t __main__( t __doc__t __author__t __all__R/ R< R R[ R5 RB R R R R R R t objectR RG R RU R: R RH Rb Rj R8 t exitt int( ( ( s, /usr/lib64/python2.7/lib2to3/pgen2/driver.pyt <module> s$ (P
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