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Used as a main program, this can refactor any number of files and/or
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i ( u with_statementu# Guido van Rossum <guido@python.org>N( u chaini ( u driveru tokenizeu token( u find_root( u pytreeu pygram( u btm_utils( u btm_matcherc C s� t | g g d g � } t j j | j � } g } xn t t j | � � D]W } | j d � rI | j d � rI | r� | d d � } n | j | d d � � qI qI W| S( uE Return a sorted list of all available fix names in the given package.u *u fix_u .pyi Ni i����(
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Args:
fixer_names: a list of fixers to import
options: an dict with configuration.
explicit: a list of fixers to run even if they are explicit.
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� | | f S( u Inspects the options to load the requested patterns and handlers.
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(pre_order, post_order), where pre_order is the list of fixers that
want a pre-order AST traversal, and post_order is the list that want
post-order traversal.
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u RefactoringTool.log_messagec G s' | r | | } n | j j | � d S( N( u loggeru debug( u selfu msgu args( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu log_debug s
u RefactoringTool.log_debugc C s d S( uT Called with the old version, new version, and filename of a
refactored file.N( ( u selfu old_textu new_textu filenameu equal( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu print_output! s u RefactoringTool.print_outputc C sP xI | D]A } t j j | � r5 | j | | | � q | j | | | � q Wd S( u) Refactor a list of files and directories.N( u osu pathu isdiru refactor_diru
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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 Wd d � | D� | d d � <q Wd S( u� Descends down a directory and refactor every Python file found.
Python files are assumed to have a .py extension.
Files and subdirectories starting with '.' are skipped.
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Do our best to decode a Python source file correctly.
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u Refactors a file.Nu
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refactor_fileS s
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| j d | � | j | | � | S( uF 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.
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there were errors during the parse.
u print_functionu Can't parse %s: %s: %sNu Refactoring %s(
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| j d � d S( Nu Refactoring doctests in stdinu <stdin>u No doctest changes in stdinu No changes in stdin(
u sysu stdinu readu log_debugu refactor_docstringu write_unchanged_filesu processed_fileu refactor_stringu was_changedu str( u selfu
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C s� x- t | j | j � D] } | j | | � q W| j | j | j � � | j | j | j � � | j j | j � � } x�t
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r^wYn X| j r}| | j k r}qn | j | � } | r| j | | � } | d k rV| j | � x9 | j � D]+ } | j s�g | _ n | j j | � q�W| j j | j � � } x? | D]4 } | | k r7g | | <n | | j | | � qWqVqqWq� q� Wq} Wx- t | j | j � D] } | j | | � q{W| j S( u� Refactors a parse tree (modifying the tree in place).
For compatible patterns the bottom matcher module is
used. Otherwise the tree is traversed node-to-node for
matches.
Args:
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.
u keyu reverseTN(! u chainu pre_orderu
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refactor_tree� sJ
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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( u Traverse an AST, applying a set of fixers to each node.
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fixers: a list of fixer instances.
traversal: a generator that yields AST nodes.
Returns:
None
N( u typeu matchu transformu Noneu replace( u selfu fixersu traversalu nodeu fixeru resultsu new( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu traverse_by� s
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Called when a file has been refactored and there may be changes.
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r� } z | j d | | � WYd d } ~ Xn XWd | j � X| j d | � d | _ d S( u� Writes a string to a file.
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then rewrites the file; the latter is only done if the write option is
set.
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u _open_with_encodingu osu erroru log_erroru writeu _to_system_newlinesu closeu log_debugu Trueu wrote( u selfu new_textu filenameu old_textu encodingu fu err( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu
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C s� g } d } d } d } d } x4| j d d � D] } | d 7} | j � j | j � r� | d k r� | j | j | | | | � � n | } | g } | j | j � } | d | � } q1 | d k r
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| j | � q1 | d k r8| j | j | | | | � � n d } d } | j | � q1 W| d k r�| j | j | | | | � � n d j | � S( u� Refactors a docstring, looking for doctests.
This returns a modified version of the input string. It looks
for doctests, which start with a ">>>" prompt, and may be
continued with "..." prompts, as long as the "..." is indented
the same as the ">>>".
(Unfortunately we can't use the doctest module's parser,
since, like most parsers, it is not geared towards preserving
the original source.)
i u keependsi Nu
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u� Refactors one doctest.
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with ">>>" (possibly indented), while the remaining lines start
with "..." (identically indented).
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need to beu No files %s modified.u Files that %s modified:u$ Warnings/messages while refactoring:i u There was 1 error:u There were %d errors:( u wroteu filesu log_messageu fixer_logu errorsu len( u selfu wereu fileu messageu msgu argsu kwds( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu summarizep s$
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in the parser diagnostics and embedded into the parse tree.
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f | f Vq% Wd S( u; Wraps a tokenize stream to systematically modify start/end.i N( u tokenizeu generate_tokensu gen_linesu __next__( u selfu blocku linenou indentu tokensu typeu valueu line0u col0u line1u col1u line_text( ( u5 /opt/alt/python33/lib64/python3.3/lib2to3/refactor.pyu wrap_toks� s
(u RefactoringTool.wrap_toksc c s� | | j } | | j } | } xo | D]g } | j | � rT | t | � d � Vn4 | | j � d k rr d Vn t d | | f � � | } q' Wx d Vq� d S( u� Generates lines as expected by tokenize from a list of lines.
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