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parser
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� ��^c @ s� d 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 d � Z d d d � � YZ d d d � � YZ d e e f d � � YZ d e f d � � YZ d e e f d � � YZ d d � Z e j e j d g f f Z e j e j e j e j e j e j e j e j e j e j e j e j e j e j e j e j! e j" e j# e j$ d g f f f f f f f f f f f f f f f f f e j% d f f f Z& d S( s� Simple code to extract class & function docstrings from a module. This code is used as an example in the library reference manual in the section on using the parser module. Refer to the manual for a thorough discussion of the operation of this code. i����N( t ListTypet TupleTypec C sV t | � j � } t j j t j j | � d � } t j | � } t | j � | � S( s� Retrieve information from the parse tree of a source file. fileName Name of the file to read Python source code from. i ( t opent readt ost patht basenamet splitextt parsert suitet ModuleInfot totuple( t fileNamet sourceR t ast( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_docs s "t SuiteInfoBasec B sV e Z d Z d Z d d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( t c C s, i | _ i | _ | r( | j | � n d S( N( t _class_infot _function_infot _extract_info( t selft tree( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt __init__! s c C s t | � d k r2 t t d | d � \ } } n t t | d � \ } } | rg t | d � | _ n x� | d D]� } t t | � \ } } | rr | d } | d t j k r� | d d } t | � | j | <q| d t j k r| d d } t | � | j | <qqr qr Wd S( Ni i i t docstringt compoundi ( t lent matcht DOCSTRING_STMT_PATTERNt evalt _docstringt COMPOUND_STMT_PATTERNt symbolt funcdeft FunctionInfoR t classdeft ClassInfoR ( R R t foundt varst nodet cstmtt name( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR ' s c C s | j S( N( R ( R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_docstring; s c C s | j S( N( t _name( R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_name> s c C s | j j � S( N( R t keys( R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_class_namesA s c C s | j | S( N( R ( R R) ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_class_infoD s c C s/ y | j | SWn t k r* | j | SXd S( N( R t KeyErrorR ( R R) ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt __getitem__G s N( t __name__t __module__R R+ t NoneR R R* R, R. R/ R1 ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR s t SuiteFuncInfoc B s e Z d � Z d � Z RS( c C s | j j � S( N( R R- ( R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_function_namesQ s c C s | j | S( N( R ( R R) ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_function_infoT s ( R2 R3 R6 R7 ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR5 N s R" c B s e Z d d � Z RS( c C s5 | d d | _ t j | | r* | d p- d � d S( Ni i i����( R+ R R R4 ( R R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR Y s N( R2 R3 R4 R ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR" X s R$ c B s& e Z d d � Z d � Z d � Z RS( c C s5 | d d | _ t j | | r* | d p- d � d S( Ni i i����( R+ R R R4 ( R R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR _ s c C s | j j � S( N( R R- ( R ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_method_namesc s c C s | j | S( N( R ( R R) ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt get_method_infof s N( R2 R3 R4 R R8 R9 ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR$ ^ s R c B s e Z d d d � Z RS( s <string>c C sU | | _ t j | | � | rQ t t | d � \ } } | rQ | d | _ qQ n d S( Ni R ( R+ R R R R R ( R R R) R% R& ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR k s N( R2 R3 R4 R ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR j s c C s� | d k r i } n t | � t k r? | | | d <d | f St | � t k ra | | k | f St | � t | � k r� d | f SxB t d | | � D]. \ } } t | | | � \ } } | s� Pq� q� W| | f S( sa Match `data' to `pattern', with variable extraction. pattern Pattern to match against, possibly containing variables. data Data to be checked and against which variables are extracted. vars Dictionary of variables which have already been found. If not provided, an empty dictionary is created. The `pattern' value may contain variables of the form ['varname'] which are allowed to match anything. The value that is matched is returned as part of a dictionary which maps 'varname' to the matched value. 'varname' is not required to be a string object, but using strings makes patterns and the code which uses them more readable. This function returns two values: a boolean indicating whether a match was found and a dictionary mapping variable names to their associated values. i i N( R4 t typeR R R t mapR ( t patternt dataR& t same( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyR t s R R R ( ( (' t __doc__R R R t tokent typesR R R R R5 R" R$ R R4 R t stmtt compound_stmtR t simple_stmtt small_stmtt expr_stmtt testlistt testt and_testt not_testt comparisont exprt xor_exprt and_exprt shift_exprt arith_exprt termt factort powert atomt STRINGt NEWLINER ( ( ( s+ /usr/lib64/python2.7/Demo/parser/example.pyt <module> sF 1 + ?
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