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re.pyo
� z fc @ sQ d Z d d l Z d d l Z d d l Z y d d l Z Wn e k rS d Z n Xd d d d d d d d d d d d d d d d d d d d d d d g Z d Z e j Z Z e j Z Z e j Z Z e j Z Z e j Z Z e j Z Z e j Z Z e j Z e j Z d d � Z! d d � Z" d d d � Z# d d d � Z$ d d d � Z% d d! � Z& e j' d" k r�e j( d# � d d$ � Z) n d d% � Z* d& � Z+ d d' � Z, e- d( � Z. d) � Z/ i Z0 i Z1 e2 e j* d* d � � Z3 d+ Z4 d, � Z5 d- � Z6 d. � Z7 d/ � Z8 d d l9 Z9 d0 � Z: e9 j; e3 e: e5 � d1 d3 d2 � � YZ< d S(4 s� Support for regular expressions (RE). This module provides regular expression matching operations similar to those found in Perl. It supports both 8-bit and Unicode strings; both the pattern and the strings being processed can contain null bytes and characters outside the US ASCII range. Regular expressions can contain both special and ordinary characters. Most ordinary characters, like "A", "a", or "0", are the simplest regular expressions; they simply match themselves. You can concatenate ordinary characters, so last matches the string 'last'. The special characters are: "." Matches any character except a newline. "^" Matches the start of the string. "$" Matches the end of the string or just before the newline at the end of the string. "*" Matches 0 or more (greedy) repetitions of the preceding RE. Greedy means that it will match as many repetitions as possible. "+" Matches 1 or more (greedy) repetitions of the preceding RE. "?" Matches 0 or 1 (greedy) of the preceding RE. *?,+?,?? Non-greedy versions of the previous three special characters. {m,n} Matches from m to n repetitions of the preceding RE. {m,n}? Non-greedy version of the above. "\\" Either escapes special characters or signals a special sequence. [] Indicates a set of characters. A "^" as the first character indicates a complementing set. "|" A|B, creates an RE that will match either A or B. (...) Matches the RE inside the parentheses. The contents can be retrieved or matched later in the string. (?iLmsux) Set the I, L, M, S, U, or X flag for the RE (see below). (?:...) Non-grouping version of regular parentheses. (?P<name>...) The substring matched by the group is accessible by name. (?P=name) Matches the text matched earlier by the group named name. (?#...) A comment; ignored. (?=...) Matches if ... matches next, but doesn't consume the string. (?!...) Matches if ... doesn't match next. (?<=...) Matches if preceded by ... (must be fixed length). (?<!...) Matches if not preceded by ... (must be fixed length). (?(id/name)yes|no) Matches yes pattern if the group with id/name matched, the (optional) no pattern otherwise. The special sequences consist of "\\" and a character from the list below. If the ordinary character is not on the list, then the resulting RE will match the second character. \number Matches the contents of the group of the same number. \A Matches only at the start of the string. \Z Matches only at the end of the string. \b Matches the empty string, but only at the start or end of a word. \B Matches the empty string, but not at the start or end of a word. \d Matches any decimal digit; equivalent to the set [0-9]. \D Matches any non-digit character; equivalent to the set [^0-9]. \s Matches any whitespace character; equivalent to [ \t\n\r\f\v]. \S Matches any non-whitespace character; equiv. to [^ \t\n\r\f\v]. \w Matches any alphanumeric character; equivalent to [a-zA-Z0-9_]. With LOCALE, it will match the set [0-9_] plus characters defined as letters for the current locale. \W Matches the complement of \w. \\ Matches a literal backslash. This module exports the following functions: match Match a regular expression pattern to the beginning of a string. search Search a string for the presence of a pattern. sub Substitute occurrences of a pattern found in a string. subn Same as sub, but also return the number of substitutions made. split Split a string by the occurrences of a pattern. findall Find all occurrences of a pattern in a string. finditer Return an iterator yielding a match object for each match. compile Compile a pattern into a RegexObject. purge Clear the regular expression cache. escape Backslash all non-alphanumerics in a string. Some of the functions in this module takes flags as optional parameters: I IGNORECASE Perform case-insensitive matching. L LOCALE Make \w, \W, \b, \B, dependent on the current locale. M MULTILINE "^" matches the beginning of lines (after a newline) as well as the string. "$" matches the end of lines (before a newline) as well as the end of the string. S DOTALL "." matches any character at all, including the newline. X VERBOSE Ignore whitespace and comments for nicer looking RE's. U UNICODE Make \w, \W, \b, \B, dependent on the Unicode locale. This module also defines an exception 'error'. i����Nt matcht searcht subt subnt splitt findallt compilet purget templatet escapet It Lt Mt St Xt Ut IGNORECASEt LOCALEt MULTILINEt DOTALLt VERBOSEt UNICODEt errors 2.2.1i c C s t | | � j | � S( sq Try to apply the pattern at the start of the string, returning a match object, or None if no match was found.( t _compileR ( t patternt stringt flags( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � j | � S( st Scan through string looking for a match to the pattern, returning a match object, or None if no match was found.( R R ( R R R ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � j | | | � S( sZ Return the string obtained by replacing the leftmost non-overlapping occurrences of the pattern in string by the replacement repl. repl can be either a string or a callable; if a string, backslash escapes in it are processed. If it is a callable, it's passed the match object and must return a replacement string to be used.( R R ( R t replR t countR ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � j | | | � S( s� Return a 2-tuple containing (new_string, number). new_string is the string obtained by replacing the leftmost non-overlapping occurrences of the pattern in the source string by the replacement repl. number is the number of substitutions that were made. repl can be either a string or a callable; if a string, backslash escapes in it are processed. If it is a callable, it's passed the match object and must return a replacement string to be used.( R R ( R R R R R ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � j | | � S( st Split the source string by the occurrences of the pattern, returning a list containing the resulting substrings.( R R ( R R t maxsplitR ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � j | � S( s Return a list of all non-overlapping matches in the string. If one or more groups are present in the pattern, return a list of groups; this will be a list of tuples if the pattern has more than one group. Empty matches are included in the result.( R R ( R R R ( ( s /usr/lib64/python2.7/re.pyR � s i t finditerc C s t | | � j | � S( s� Return an iterator over all non-overlapping matches in the string. For each match, the iterator returns a match object. Empty matches are included in the result.( R R ( R R R ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | � S( sA Compile a regular expression pattern, returning a pattern object.( R ( R R ( ( s /usr/lib64/python2.7/re.pyR � s c C s t j � t j � d S( s" Clear the regular expression cacheN( t _cachet cleart _cache_repl( ( ( s /usr/lib64/python2.7/re.pyR � s c C s t | | t B� S( s6 Compile a template pattern, returning a pattern object( R t T( R R ( ( s /usr/lib64/python2.7/re.pyR � s t> abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789c C sv t | � } t } xP t | � D]B \ } } | | k r | d k rP d | | <qa d | | | <q q W| d j | � S( s2 Escape all non-alphanumeric characters in pattern.s s \000s \i ( t listt _alphanumt enumeratet join( R t st alphanumt it c( ( s /usr/lib64/python2.7/re.pyR � s t id c G sl | \ } } | t @} | s� t | d � f | } y< t | \ } } | d k sj | t j t j � k rn | SWq� t k r� q� Xn t | t � r� | r� t d � � n | St j | � s� t d � n y t j | | � } Wn t k r� } t | � n X| sht t � t k r#t j � n | j t @rOt s:| St j t j � } n d } | | f t | <n | S( Ni s5 Cannot process flags argument with a compiled patterns1 first argument must be string or compiled pattern( t DEBUGt typeR t Nonet _localet setlocalet LC_CTYPEt KeyErrort isinstancet _pattern_typet ValueErrort sre_compilet isstringt TypeErrorR R t lent _MAXCACHER R R ( t keyR R t bypass_cachet cachekeyt pt loct v( ( s /usr/lib64/python2.7/re.pyR � s< $ c G s� t j | � } | d k r | S| \ } } y t j | | � } Wn t k r_ } t | � n Xt t � t k r t j � n | t | <| S( N( R! t getR/ t sre_parset parse_templateR R: R; R ( R< R? R R RA ( ( s /usr/lib64/python2.7/re.pyt _compile_repl s c C s" t j | | � } t j | | � S( N( RC RD t expand_template( R R R ( ( s /usr/lib64/python2.7/re.pyt _expand s c C sL t | | � } | d r< t | d � d k r< | d d S| d � } | S( Ni i c S s t j | | � S( N( RC RF ( R R ( ( s /usr/lib64/python2.7/re.pyt filter" s ( RE R: ( R R RH ( ( s /usr/lib64/python2.7/re.pyt _subx s ! c C s t | j | j f f S( N( R R R ( R? ( ( s /usr/lib64/python2.7/re.pyt _pickle* s t Scannerc B s e Z d d � Z d � Z RS( i c C s� d d l m } m } | | _ g } t j � } | | _ xR | D]J \ } } | j t j | | t | � d t j | | � f f g � � qA Wt | � d | _ t j | | d | f f g � } t j | � | _ d S( Ni����( t BRANCHt SUBPATTERNi ( t sre_constantsRL RM t lexiconRC t PatternR t appendt SubPatternR: t parset groupsR/ R7 R t scanner( t selfRO R RL RM R? R( t phraset action( ( s /usr/lib64/python2.7/re.pyt __init__3 s 3!c C s� g } | j } | j j | � j } d } x� | � } | s@ Pn | j � } | | k r\ Pn | j | j d d } t | d � r� | | _ | | | j � � } n | d k r� | | � n | } q- W| | | f S( Ni i t __call__( RQ RU R t endRO t lastindext hasattrt groupR/ ( RV R t resultRQ R R* t mt jRX ( ( s /usr/lib64/python2.7/re.pyt scanA s& ( t __name__t __module__RY Rb ( ( ( s /usr/lib64/python2.7/re.pyRK 2 s ( (= t __doc__t sysR7 RC R0 t ImportErrorR/ t __all__t __version__t SRE_FLAG_IGNORECASER R t SRE_FLAG_LOCALER R t SRE_FLAG_UNICODER R t SRE_FLAG_MULTILINER R t SRE_FLAG_DOTALLR R t SRE_FLAG_VERBOSER R t SRE_FLAG_TEMPLATER" t TEMPLATEt SRE_FLAG_DEBUGR- R R R R R R R t hexversionRQ R R R R t frozensetR% R R R! R. R5 R; R RE RG RI t copy_regRJ t pickleRK ( ( ( s /usr/lib64/python2.7/re.pyt <module>f s` "
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