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This provides a high-level interface to parse a file into a syntax tree.
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s4 Parse a series of tokens and return the syntax tree.i i u s
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c C s" t j | j ƒ } | j | | ƒ 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_rawV s c C s | j | | ƒ 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 | ƒ } z | j | | ƒ SWd | j ƒ 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
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Xq&n t j ƒ } | j | ƒ | S( s' Load the grammar (maybe from a pickle).s .txtR t .s .pickles! Generating grammar tables from %ss Writing grammar tables to %ss Writing failed:N( R R R t ost patht splitextt joint mapt strt syst version_infot _newert infoR t generate_grammart dumpt IOErrorR t Grammart load( t gtt gpt savet forceR
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c C sN t j j | ƒ s t St j j | ƒ s, t St j j | ƒ t j j | ƒ 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.pyRE † s
c G sc | s t j d } n t j d t j d t j d d ƒ x$ | D] } t | d t d t ƒq? 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.
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