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Used as a main program, this can refactor any number of files and/or
recursively descend down directories. Imported as a module, this
provides infrastructure to write your own refactoring tool.
i����( t with_statements# Guido van Rossum <guido@python.org>N( t chaini ( t drivert tokenizet token( t find_root( t pytreet pygram( t btm_utils( t btm_matcherc C� sz t | g g d g � } g } xU t j | j � D]A \ } } } | j d � r1 | rb | d } n | j | � q1 q1 W| S( sE Return a sorted list of all available fix names in the given package.t *t fix_i ( t
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fixer_names: a list of fixers to import
options: a dict with configuration.
explicit: a list of fixers to run even if they are explicit.
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c C� s� g } g } x�| j D]�} t | i i d g � } | j d d � d } | j | j � rr | t | j � } n | j d � } | j d j g | D] } | j � ^ q� � } y t
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(pre_order, post_order), where pre_order is the list of fixers that
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post-order traversal.
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c O� s � d S( s Called when an error occurs.N( ( R� t msgt argst kwds( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt log_error s c G� s' | r | | } n | j j | � d S( s Hook to log a message.N( Rk t info( R� R� R� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyR� s
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c C� s� t j d } x� t j | � D]� \ } } } | j d | � | j � | j � xe | D]] } | j d � rW t j j | � d | k rW t j j | | � } | j | | | � qW qW Wg | D] }
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^ q� | (q Wd S( s� Descends down a directory and refactor every Python file found.
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c C� s� y t | d � } Wn' t k
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Do our best to decode a Python source file correctly.
t rbs Can't open %s: %si NR* t encoding( NN( t opent IOErrorR� R! R t detect_encodingRR t closet _open_with_encodingRH t read( R� R� t ft errR� ( ( s( /usr/lib64/python2.7/lib2to3/refactor.pyt _read_python_sourceC s c C� s | j | � \ } } | d k r% d S| d 7} | r� | j d | � | j | | � } | j sl | | k r� | j | | | | | � q� | j d | � nc | j | | � } | j s� | r� | j r� | j t | � d | d | d | �n | j d | � d S( s Refactors a file.Nu
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ru } | j d | | j j | � d SXWd | j | j _ X| | _
| j d | � | j | | � | S( sF Refactor a given input string.
Args:
data: a string holding the code to be refactored.
name: a human-readable name for use in error/log messages.
Returns:
An AST corresponding to the refactored input stream; None if
there were errors during the parse.
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r]qn X| j r|| | j k r|qn | j | � } | r| j | | � } | d k rU| j | � x9 | j � D]+ } | j s�g | _ n | j j | � q�W| j j | j � � } x? | D]4 } | | k r6g | | <n | | j | | � qWqUqqWq� q� Wq} Wx- t | j | j � D] } | j | | � qzW| j S( s� Refactors a parse tree (modifying the tree in place).
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used. Otherwise the tree is traversed node-to-node for
matches.
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tree: a pytree.Node instance representing the root of the tree
to be refactored.
name: a human-readable name for this tree.
Returns:
True if the tree was modified, False otherwise.
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d Sxr | D]j } xa | | j D]R } | j | � } | r% | j | | � } | d k rw | j | � | } qw q% q% Wq Wd S( s Traverse an AST, applying a set of fixers to each node.
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traversal: a generator that yields AST nodes.
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None
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� d k r| j | � q. | d k r/| j | j | | | | � � n d } d } | j | � q. W| d k rz| j | j | | | | � � n d j | � S( s� Refactors a docstring, looking for doctests.
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for doctests, which start with a ">>>" prompt, and may be
continued with "..." prompts, as long as the "..." is indented
the same as the ">>>".
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since, like most parsers, it is not geared towards preserving
the original source.)
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t � } | | d | | d } } | d j d � s� | d c d 7<n | | j | j d � g } | rL| g | D] } | | j | ^ q(7} qLn | S( s� Refactors one doctest.
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