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    V\                     @   s   d Z ddlZddlZddlmZmZ ddlZddlZddlZddl	m
Z
mZ ddlZddlmZ e Zdd ZedejZd	d
 ZedZdddZdd ZG dd dejZdddZejZG dd deZejZ ej!Z!ej"Z"ej#Z#ej$Z$ej%Z%ej&Z&dS )z
    babel.util
    ~~~~~~~~~~

    Various utility classes and functions.

    :copyright: (c) 2013-2019 by the Babel Team.
    :license: BSD, see LICENSE for more details.
    N)	timedeltatzinfo)izipimap)	localtimec                 c   s2    t  }t| D ]}||vr|V  || qdS )a  Yield all items in an iterable collection that are distinct.

    Unlike when using sets for a similar effect, the original ordering of the
    items in the collection is preserved by this function.

    >>> print(list(distinct([1, 2, 1, 3, 4, 4])))
    [1, 2, 3, 4]
    >>> print(list(distinct('foobar')))
    ['f', 'o', 'b', 'a', 'r']

    :param iterable: the iterable collection providing the data
    N)setiteradd)iterableseenitem r   ,/usr/lib/python3/dist-packages/babel/util.pydistinct   s   
r   s(   [ \t\f]* \# .* coding[=:][ \t]*([-\w.]+)c              
   C   s  |   }| d zw|  }|tj}|r|ttjd }t|}|sJzddl	}|
|d W n tttfy@   Y n
w |  }t|}|ri|ra|dd}|dkratd|W | | dS |ry|ddW | | S W | | dS | | w )a/  Deduce the encoding of a source file from magic comment.

    It does this in the same way as the `Python interpreter`__

    .. __: https://docs.python.org/3.4/reference/lexical_analysis.html#encoding-declarations

    The ``fp`` argument should be a seekable file object.

    (From Jeff Dairiki)
    r   Nlatin-1   zutf-8zencoding problem: {0} with BOM)tellseekreadline
startswithcodecsBOM_UTF8lenPYTHON_MAGIC_COMMENT_rematchparsersuitedecodeImportErrorSyntaxErrorUnicodeEncodeErrorgroupformat)fpposline1has_bommr   line2magic_comment_encodingr   r   r   parse_encoding1   sB   


r*   z'from\s+__future__\s+import\s+\(*(.+)\)*r   c           
   	   C   s   ddl }|  }| d d}zK|  |}tdd|}tdd|}tdd|}t|D ]!}d	d
 |	d
dD }|D ]}t||d}	|	rQ||	jO }qBq1W | | |S | | w )zRParse the compiler flags by :mod:`__future__` from the given Python
    code.
    r   Nzimport\s*\([\r\n]+zimport (z,\s*[\r\n]+z, z\\\s*[\r\n]+ c                 S   s   g | ]	}|   d qS )z())strip).0xr   r   r   
<listcomp>}   s    z&parse_future_flags.<locals>.<listcomp>r   ,)
__future__r   r   readr   resubPYTHON_FUTURE_IMPORT_refinditerr!   splitgetattrcompiler_flag)
r#   encodingr1   r$   flagsbodyr'   namesnamefeaturer   r   r   parse_future_flagsg   s*   


r@   c                 C   s   ddddddd}|  drdg}| d	d
 } n|  dr'dg}| dd
 } ng }ttd| D ]\}}|d rA|||  q1|rK|t| q1td|d |t	j
d}|d
uS )a  Extended pathname pattern matching.

    This function is similar to what is provided by the ``fnmatch`` module in
    the Python standard library, but:

     * can match complete (relative or absolute) path names, and not just file
       names, and
     * also supports a convenience pattern ("**") to match files at any
       directory level.

    Examples:

    >>> pathmatch('**.py', 'bar.py')
    True
    >>> pathmatch('**.py', 'foo/bar/baz.py')
    True
    >>> pathmatch('**.py', 'templates/index.html')
    False

    >>> pathmatch('./foo/**.py', 'foo/bar/baz.py')
    True
    >>> pathmatch('./foo/**.py', 'bar/baz.py')
    False

    >>> pathmatch('^foo/**.py', 'foo/bar/baz.py')
    True
    >>> pathmatch('^foo/**.py', 'bar/baz.py')
    False

    >>> pathmatch('**/templates/*.html', 'templates/index.html')
    True
    >>> pathmatch('**/templates/*.html', 'templates/foo/bar.html')
    False

    :param pattern: the glob pattern
    :param filename: the path name of the file to match against
    z[^/]z[^/]/z[^/]+z[^/]+/z	(?:.+/)*?z(?:.+/)*?[^/]+)?z?/*z*/z**/z**^r   Nz./   z	([?*]+/?) $/)r   	enumerater3   r7   appendescaper   joinreplaceossep)patternfilenamesymbolsbufidxpartr   r   r   r   	pathmatch   s,   '
	
 rU   c                   @   s   e Zd ZedZdS )TextWrapperz((\s+|(?<=[\w\!\"\'\&\.\,\?])-{2,}(?=\w))N)__name__
__module____qualname__r3   compile
wordsep_rer   r   r   r   rV      s    rV   F   rE   c                 C   s   t |||dd}|| S )a  Simple wrapper around the ``textwrap.wrap`` function in the standard
    library. This version does not wrap lines on hyphens in words.

    :param text: the text to wrap
    :param width: the maximum line width
    :param initial_indent: string that will be prepended to the first line of
                           wrapped output
    :param subsequent_indent: string that will be prepended to all lines save
                              the first of wrapped output
    F)widthinitial_indentsubsequent_indentbreak_long_words)rV   wrap)textr]   r^   r_   wrapperr   r   r   wraptext   s
   
rd   c                   @   sB   e Zd ZdZdddZdd Zdd Zd	d
 Zdd Zdd Z	dS )FixedOffsetTimezonez&Fixed offset in minutes east from UTC.Nc                 C   s&   t |d| _|d u rd| }|| _d S )N)minutesz
Etc/GMT%+d)r   _offsetzone)selfoffsetr>   r   r   r   __init__   s   
zFixedOffsetTimezone.__init__c                 C      | j S Nrh   ri   r   r   r   __str__      zFixedOffsetTimezone.__str__c                 C   s   d| j | jf S )Nz<FixedOffset "%s" %s>)rh   rg   ro   r   r   r   __repr__   s   zFixedOffsetTimezone.__repr__c                 C   rl   rm   )rg   ri   dtr   r   r   	utcoffset   rq   zFixedOffsetTimezone.utcoffsetc                 C   rl   rm   rn   rs   r   r   r   tzname   rq   zFixedOffsetTimezone.tznamec                 C   s   t S rm   )ZEROrs   r   r   r   dst   s   zFixedOffsetTimezone.dstrm   )
rW   rX   rY   __doc__rk   rp   rr   ru   rv   rx   r   r   r   r   re      s    
re   )r   )r\   rE   rE   )'ry   r   collectionsdatetimer   r   rM   r3   textwrapbabel._compatr   r   pytz_pytzbabelr   objectmissingr   rZ   VERBOSEr   r*   r5   r@   rU   rV   rd   OrderedDictodictre   utcUTCLOCALTZget_localzone	STDOFFSET	DSTOFFSETDSTDIFFrw   r   r   r   r   <module>   s@   
2
 A

