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� ǁaWc @ s d Z d d l Z d d l Z d d l Z e j d d k rL e Z e Z n e Z e Z d � Z d e f d � � YZ d e e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ e j d � Z e j d � Z e j d � Z d! � Z d" � Z d# � Z! e" d$ � Z# d% � Z$ d& � Z% d' � Z& d( e' f d) � � YZ( d* e( f d+ � � YZ) d, dB d- � � YZ* d. � Z+ e+ d/ � Z, e+ d0 � Z- e+ d1 � Z. e+ d2 � Z/ i e+ d3 � d4 6e+ d5 � d6 6Z0 e j d7 � j1 Z2 e j e* j3 e j4 � j1 Z5 e j d8 � j1 Z6 e7 e d9 � r�e j8 d: d; � Z9 n d< � Z9 d= � Z: d> � Z; d? � Z< d@ e f dA � � YZ= d S(C s cssselect.parser ================ Tokenizer, parser and parsed objects for CSS selectors. :copyright: (c) 2007-2012 Ian Bicking and contributors. See AUTHORS for more details. :license: BSD, see LICENSE for more details. i����Ni i c C s | j d � j � j d � S( s( Lower-case, but only in the ASCII range.t utf8( t encodet lowert decode( t string( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt ascii_lower s t SelectorErrorc B s e Z d Z RS( s� Common parent for :class:`SelectorSyntaxError` and :class:`ExpressionError`. You can just use ``except SelectorError:`` when calling :meth:`~GenericTranslator.css_to_xpath` and handle both exceptions types. ( t __name__t __module__t __doc__( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR ! s t SelectorSyntaxErrorc B s e Z d Z RS( s3 Parsing a selector that does not match the grammar.( R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR * s t Selectorc B s, e Z d Z d d � Z d � Z d � Z RS( s" Represents a parsed selector. :meth:`~GenericTranslator.selector_to_xpath` accepts this object, but ignores :attr:`pseudo_element`. It is the user’s responsibility to account for pseudo-elements and reject selectors with unknown or unsupported pseudo-elements. c C sA | | _ | d k r4 t | t � r4 t | � } n | | _ d S( N( t parsed_treet Nonet isinstancet FunctionalPseudoElementR t pseudo_element( t selft treeR ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt __init__: s c C s] t | j t � r$ t | j � } n | j r= d | j } n d } d | j j | j | f S( Ns ::%st s %s[%r%s]( R R R t reprt __class__R R ( R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt __repr__U s c C s; | j j � \ } } } | j r. | d 7} n | | | f S( s� Return the specificity_ of this selector as a tuple of 3 integers. .. _specificity: http://www.w3.org/TR/selectors/#specificity i ( R t specificityR ( R t at bt c( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR _ s N( R R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR 0 s t Classc B s) e Z d Z d � Z d � Z d � Z RS( s( Represents selector.class_name c C s | | _ | | _ d S( N( t selectort class_name( R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR o s c C s d | j j | j | j f S( Ns %s[%r.%s]( R R R R ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR w s ( R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR k s R c B s2 e Z d Z d � Z d � Z d � Z d � Z RS( sx Represents selector::name(arguments) .. attribute:: name The name (identifier) of the pseudo-element, as a string. .. attribute:: arguments The arguments of the pseudo-element, as a list of tokens. **Note:** tokens are not part of the public API, and may change between cssselect versions. Use at your own risks. c C s t | � | _ | | _ d S( N( R t namet arguments( R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s3 d | j j | j g | j D] } | j ^ q f S( Ns %s[::%s(%r)]( R R R R t value( R t token( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s g | j D] } | j ^ q S( N( R t type( R R" ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt argument_types� s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s ( R R R R R R$ R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR } s t Functionc B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s( Represents selector:name(expr) c C s% | | _ t | � | _ | | _ d S( N( R R R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s9 d | j j | j | j g | j D] } | j ^ q" f S( Ns %s[%r:%s(%r)]( R R R R R R! ( R R" ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s g | j D] } | j ^ q S( N( R R# ( R R" ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR$ � s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s ( R R R R R R$ R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR% � s t Pseudoc B s) e Z d Z d � Z d � Z d � Z RS( s# Represents selector:ident c C s | | _ t | � | _ d S( N( R R t ident( R R R' ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s d | j j | j | j f S( Ns %s[%r:%s]( R R R R' ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s ( R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR& � s t Negationc B s) e Z d Z d � Z d � Z d � Z RS( s. Represents selector:not(subselector) c C s | | _ | | _ d S( N( R t subselector( R R R) ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s d | j j | j | j f S( Ns %s[%r:not(%r)]( R R R R) ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C sI | j j � \ } } } | j j � \ } } } | | | | | | f S( N( R R R) ( R t a1t b1t c1t a2t b2t c2( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s ( R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR( � s t Attribc B s) e Z d Z d � Z d � Z d � Z RS( s> Represents selector[namespace|attrib operator value] c C s1 | | _ | | _ | | _ | | _ | | _ d S( N( R t namespacet attribt operatorR! ( R R R1 R2 R3 R! ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s~ | j r" d | j | j f } n | j } | j d k rT d | j j | j | f Sd | j j | j | | j | j f Sd S( Ns %s|%st existss %s[%r[%s]]s %s[%r[%s %s %r]]( R1 R2 R3 R R R R! ( R R2 ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s ( R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR0 � s t Elementc B s/ e Z d Z d d d � Z d � Z d � Z RS( sU Represents namespace|element `None` is for the universal selector '*' c C s | | _ | | _ d S( N( R1 t element( R R1 R6 ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s c C sB | j p d } | j r. d | j | f } n d | j j | f S( Nt *s %s|%ss %s[%s]( R6 R1 R R ( R R6 ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s c C s | j r d Sd Sd S( Ni i ( i i i ( i i i ( R6 ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s N( R R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR5 � s t Hashc B s) e Z d Z d � Z d � Z d � Z RS( s Represents selector#id c C s | | _ | | _ d S( N( R t id( R R R9 ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s c C s d | j j | j | j f S( Ns %s[%r#%s]( R R R R9 ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s c C s/ | j j � \ } } } | d 7} | | | f S( Ni ( R R ( R R R R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR s ( R R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR8 s t CombinedSelectorc B s# e Z d � Z d � Z d � Z RS( c C s | | _ | | _ | | _ d S( N( R t combinatorR) ( R R R; R) ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR $ s c C sA | j d k r d } n | j } d | j j | j | | j f S( Nt s <followed>s %s[%r %s %r]( R; R R R R) ( R t comb( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR * s c C sI | j j � \ } } } | j j � \ } } } | | | | | | f S( N( R R R) ( R R* R+ R, R- R. R/ ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR 2 s ( R R R R R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR: # s s% ^[ \t\r\n\f]*([a-zA-Z]+)[ \t\r\n\f]*$s6 ^[ \t\r\n\f]*([a-zA-Z]*)#([a-zA-Z0-9_-]+)[ \t\r\n\f]*$s? ^[ \t\r\n\f]*([a-zA-Z]*)\.([a-zA-Z][a-zA-Z0-9_-]*)[ \t\r\n\f]*$c C s t j | � } | r4 t t d | j d � � � g St j | � } | d k r� t t t d | j d � pm d � | j d � � � g St j | � } | d k r� t t t d | j d � p� d � | j d � � � g St t | � � } | | _ t t | � � S( s� Parse a CSS *group of selectors*. If you don't care about pseudo-elements or selector specificity, you can skip this and use :meth:`~GenericTranslator.css_to_xpath`. :param css: A *group of selectors* as an Unicode string. :raises: :class:`SelectorSyntaxError` on invalid selectors. :returns: A list of parsed :class:`Selector` objects, one for each selector in the comma-separated group. R6 i i N( t _el_ret matchR R5 t groupt _id_reR R8 t _class_reR t TokenStreamt tokenizet sourcet listt parse_selector_group( t cssR? t stream( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt parseE s ! ! c c sP | j � x? t t | � � V| j � d k rG | j � | j � q Pq Wd S( Nt DELIMt ,( RK RL ( t skip_whitespaceR t parse_selectort peekt next( RI ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRG o s c C s� t | � \ } } x� | j � | j � } | d d f k rA Pn | rZ t d | � � n | j d d d � r� | j � j } | j � n d } t | � \ } } t | | | � } q W| | f S( Nt EOFRK RL s4 Got pseudo-element ::%s not at the end of a selectort +t >t ~R< ( RQ N( RK RL ( t parse_simple_selectorRM RO R R t is_delimRP R! R: ( RI t resultR RO R; t next_selector( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRN y s" c C s� | j � t | j � } | j � } | j d k s@ | d k r� | j d k ra | j � j } n | j � d } | j � d k r� | j � | j � } q� | } d } n d } } t | | � } d } x�| j � } | j d k s| j d d d d � s| r| d k rPn | r/t d | � � n | j d k rYt | | j � j � } q� | d k r�| j � t | | j � � } q� | d! k r�| j � t | | � } q� | d" k rN| j � | j � d# k r'| j � | j � } | j � d$ k r� | j � t | t | � � } q� q� n | j � } | j � d% k rWt | � } q� n | j � d& k r~t | | � } q� n | j � | j � | j � d k r3| r�t d � � n t | d t �\ } } | j � } | r�t d | | j f � � n | d' k r!t d | f � � n t | | � } qat | | t | � � } q� t d | f � � q� Wt | j � | k r�t d | j � f � � n | | f S(( Nt IDENTRK R7 t |t SRQ RL RR RS RT t )s4 Got pseudo-element ::%s not at the end of a selectort HASHt .t [t :t (s first-lines first-lettert beforet aftert nots Got nested :not()t inside_negations+ Got pseudo-element ::%s inside :not() at %ss Expected ')', got %ss Expected selector, got %s( RK R7 ( RK RZ ( R[ RQ ( RK R\ ( RK R^ ( RK R_ ( RK R` ( RK R` ( RK Ra ( s first-lines first-letterRb Rc ( RK Ra ( RK R\ ( RM t lent usedRO R# RP R! R t next_ident_or_starR5 RV R R8 R t next_identt parse_attribR t parse_argumentsR t _unicodeR& RU t Truet posR( R% ( RI Re t selector_startRO R1 R6 RW R R' t argumentt argument_pseudo_elementRP ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRU � s� ' c C s{ g } xn | j � | j � } | j d k s@ | d d g k rP | j | � q | d k r` | St d | f � � q Wd S( NRY t STRINGt NUMBERRK RR t -R\ s Expected an argument, got %s( RY Rr Rs ( RK RR ( RK Rt ( RK R\ ( RM RP R# t appendR ( RI R RP ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRk � s c C s | j � | j � } | d k rP | j � d k rP t d | j � f � � n | j � d k r� | j � | j � d k r� d } | j � d } q� | } | j � } d } n d } } | d k ru| j � | j � } | d k r t | | | d d � S| d k rd } qu| j d d d d d d � r_| j � d k r_| j d } | j � qut d | f � � n | j � | j � } | j d k r�t d | f � � n | j � | j � } | d k r�t d | f � � n t | | | | | j � S( NRK RZ s Expected '|', got %st =s |=t ]R4 t ^t $R7 RT t !s Operator expected, got %sRY Rr s Expected string or ident, got %ss Expected ']', got %s( RK RZ ( RK RZ ( RK Rv ( RK Rw ( RK Rv ( RK Rv ( RY Rr ( RK Rw ( RM Rh R RO R RP Ri R0 RV R! R# ( R RI R2 R1 t opRP R! ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRj � sN c C s x, | D]$ } | j d k r t d � � q q Wd j d � | D� � j � } | d k r^ d S| d k rn d S| d k r~ d Sd | k r� d t | � f S| j d d � \ } } | s� d } n7 | d k s� | d k r� t | d � } n t | � } | sd } n t | � } | | f S( sv Parses the arguments for :nth-child() and friends. :raises: A list of tokens :returns: :``(a, b)`` Rr s$ String tokens not allowed in series.R c s s | ] } | j Vq d S( N( R! ( t .0R" ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pys <genexpr>+ s t oddi i t eveni t nRt RR t 1( i i ( i i ( i i ( R# t ValueErrort joint stript intt split( t tokensR" t sR R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt parse_series s, t Tokenc B sM e Z d � Z d � Z d � Z e e j d � � Z e e j d � � Z RS( c C s% t j | | | f � } | | _ | S( N( t tuplet __new__Rn ( t clst type_R! Rn t obj( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR� F s c C s d | j | j | j f S( Ns <%s '%s' at %i>( R# R! Rn ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR K s c G s | j d k o | j | k S( NRK ( R# R! ( R t values( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRV N s i i ( R R R� R RV t propertyR3 t itemgetterR# R! ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR� E s t EOFTokenc B s e Z d � Z d � Z RS( c C s t j | d d | � S( NRQ ( R� R� R ( R� Rn ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR� V s c C s d | j | j f S( Ns <%s at %i>( R# Rn ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR Y s ( R R R� R ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR� U s t TokenMacrosc B sH e Z d Z e d Z d e Z d Z d e e f Z d e e f Z RS( s& \\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?s |\\[^\n\r\f0-9a-f]s \\(?:\n|\r\n|\r|\f)|s [^\0-\177]s [_a-z0-9-]|%s|%ss [_a-z]|%s|%s( R R t unicode_escapet escapet string_escapet nonasciit nmchart nmstart( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR� ` s c C s t j | t t � t j � j S( N( t ret compilet varsR� t IGNORECASER? ( t pattern( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt _compileh s s [ \t\r\n\f]+s [+-]?(?:[0-9]*\.[0-9]+|[0-9]+)s #(?:%(nmchar)s)+s -?(?:%(nmstart)s)(?:%(nmchar)s)*s! ([^\n\r\f\\']|%(string_escape)s)*t 's! ([^\n\r\f\\"]|%(string_escape)s)*t "s \\(.)s \\(?:\n|\r\n|\r|\f)t methodcallerR@ i c C s | j d � S( Ni ( R@ ( R? ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt _replace_simple} s c C s: t | j d � d � } | t j k r0 d } n t | � S( Ni i i�� ( R� R@ t syst maxunicodet _unichr( R? t codepoint( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt _replace_unicode� s c C s" t t | � } t t | � } | S( N( t _sub_unicode_escapeR� t _sub_simple_escapeR� ( R! ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt unescape_ident� s c c s� d } t | � } x�| | k r�t | d | �} | r\ t d d | � V| j � } q n t | d | �} | r� t t t t | j � � � } t d | | � V| j � } q n t | d | �} | rt t t t | j � d � � } t d | | � V| j � } q n | | } | t k r�t | | d | d �} | j � } | | k rmt d | � � n | | | k r�t d | � � n t t t t t d | j � � � � } t d | | � V| d } q n t | d | �} | r | j � } t d | | � V| j � } q n | d } | | | !d k rs| j d | � } | d k rc| } q | d 7} q n t d | | | � V| d 7} q Wt | � Vd S( Ni Rn R[ R< RY i R] s Unclosed string at %ss Invalid string at %sR Rr Rs i s /*s */i����RK ( Rf t _match_whitespaceR� t endt _match_identR� R� R� R� R@ t _match_hasht _match_string_by_quoteR t _sub_newline_escapet _match_numbert findR� ( R� Rn t len_sR? R! t quotet end_post pos2( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRD � sh RC c B sA e Z d d � Z d � Z d � Z d � Z d � Z d � Z RS( c C sm g | _ t | � | _ | | _ d | _ t | _ y | j j | _ Wn t k rh | j j | _ n Xd S( N( Rg t iterR� RE R t peekedt Falset _peekingRP t next_tokent AttributeErrort __next__( R R� RE ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyR � s c C sP | j r, t | _ | j j | j � | j S| j � } | j j | � | Sd S( N( R� R� Rg Ru R� R� ( R RP ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRP � s c C s+ | j s$ | j � | _ t | _ n | j S( N( R� R� R� Rm ( R ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRO � s c C s8 | j � } | j d k r1 t d | f � � n | j S( NRY s Expected ident, got %s( RP R# R R! ( R RP ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRi � s c C sI | j � } | j d k r" | j S| d k r2 d St d | f � � d S( NRY RK R7 s Expected ident or '*', got %s( RK R7 ( RP R# R! R R ( R RP ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRh � s c C s, | j � } | j d k r( | j � n d S( NR[ ( RO R# RP ( R RO ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRM � s N( R R R R RP RO Ri Rh RM ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyRC � s ( (> R R� R� R3 t version_infot unicodeRl t unichrR� t strt chrR t ExceptionR t SyntaxErrorR t objectR R R R% R& R( R0 R5 R8 R: R� R> RA RB RJ RG RN R� RU Rk Rj R� R� R� R� R� R� R� R� R� R� R� t subR� R� t IR� R� t hasattrR� R� R� R� RD RC ( ( ( s4 /usr/lib/python2.7/site-packages/cssselect/parser.pyt <module> sj ;# * S - % A
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