
mKc           @   sp   d  Z  d d k Z d d k Z d d d g Z d d  Z h  a d   Z d d  Z d d	  Z	 d d
  Z
 d S(   s   Cache lines from files.

This is intended to read lines from modules imported -- hence if a filename
is not found, it will look down the module search path for a file by
that name.
iNt   getlinet
   clearcachet
   checkcachec         C   sH   t  |  |  } d | j o t |  j n o | | d Sd Sd  S(   Ni   t    (   t   getlinest   len(   t   filenamet   linenot   module_globalst   lines(    (    s   /usr/lib/python2.6/linecache.pyR       s    $c           C   s
   h  a  d S(   s   Clear the cache entirely.N(   t   cache(    (    (    s   /usr/lib/python2.6/linecache.pyR      s    c         C   s+   |  t  j o t  |  d St |  |  Sd S(   ss   Get the lines for a file from the cache.
    Update the cache if it doesn't contain an entry for this file already.i   N(   R
   t   updatecache(   R   R   (    (    s   /usr/lib/python2.6/linecache.pyR   !   s    c         C   s   |  d j o t i   } n |  t j o |  g } n d Sx | D] }  t |  \ } } } } | d j o qB n y t i |  } Wn  t i j
 o t |  =qB n X| | i j p | | i j o t |  =qB qB Wd S(   sU   Discard cache entries that are out of date.
    (This is not checked upon each call!)N(   t   NoneR
   t   keyst   ost   statt   errort   st_sizet   st_mtime(   R   t	   filenamest   sizet   mtimeR	   t   fullnameR   (    (    s   /usr/lib/python2.6/linecache.pyR   +   s"      c         C   sp  |  t  j o t  |  =n |  p |  d |  d d j o g  S|  } y t i |  } Wnt i j
 o} |  } | o d | j o | i d  } | d } t | d d  } | o | o y | |  }	 Wn t t f j
 o qOX|	 d j o g  St	 |	  d g  }
 |	 i
   D] } |
 | d q~
 | f t  |  <t  |  d SqSn t i i |   o g  S| d	 j o
 |  } n x| t i D]h } y t i i | |  } Wn t t f j
 o qXy t i |  } PWqt i j
 o qXqWg  Sn Xy) t | d
  } | i   } | i   Wn t j
 o
 } g  SX| i | i } } | | | | f t  |  <| S(   s   Update a cache entry and return its list of lines.
    If something's wrong, print a message, discard the cache entry,
    and return an empty list.i    is   <>t
   __loader__t   __name__t
   get_sources   
i   s   __init__.pyt   rUN(   R
   R   R   R   t   gett   getattrR   t   ImportErrort   IOErrorR   t
   splitlinest   patht   isabst   syst   joint	   TypeErrort   AttributeErrort   opent	   readlinest   closeR   R   (   R   R   R   R   t   msgt   basenamet   namet   loaderR   t   datat   _[1]t   linet   dirnamet   fpR	   R   R   (    (    s   /usr/lib/python2.6/linecache.pyR   D   s`    !
5

 		(   t   __doc__R"   R   t   __all__R   R    R
   R   R   R   R   (    (    (    s   /usr/lib/python2.6/linecache.pyt   <module>   s   
	
