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html5lib
_inputstream.pyo
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This class takes care of character encoding and removing or replacing incorrect byte-sequences and also provides column and line tracking. i ( c C` s� t j s d | _ n- t d � d k r6 | j | _ n | j | _ d g | _ t d � d f | _ | j | � | _ | j � d S( u� Initialises the HTMLInputStream. HTMLInputStream(source, [encoding]) -> Normalized stream from source for use by html5lib. source can be either a file-object, local filename or a string. The optional encoding parameter must be a string that indicates the encoding. If specified, that encoding will be used, regardless of any BOM or later declaration (such as in a meta element) u i i u utf-8u certainN( R t supports_lone_surrogatest Nonet reportCharacterErrorsR t characterErrorsUCS4t characterErrorsUCS2t newLinest lookupEncodingt charEncodingt openStreamt dataStreamt reset( R R> ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR � s c C` sC d | _ d | _ d | _ g | _ d | _ d | _ d | _ d S( Nu i ( R t chunkSizet chunkOffsett errorst prevNumLinest prevNumColsRE t _bufferedCharacter( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRN � s c C` s( t | d � r | } n t | � } | S( uv Produces a file object from source. source can be either a file object, local filename or a string. u read( R9 R ( R R> R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRL � s c C` st | j } | j d d | � } | j | } | j d d | � } | d k r\ | j | } n | | d } | | f S( Nu i i����i ( R t countRR t rfindRS ( R R R t nLinest positionLinet lastLinePost positionColumn( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt _position� s c C` s& | j | j � \ } } | d | f S( u: Returns (line, col) of the current position in the stream.i ( R[ RP ( R t linet col( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR � s c C` sL | j | j k r% | j � s% t Sn | j } | j | } | d | _ | S( uo Read one character from the stream or queue if available. Return EOF when EOF is reached. i ( RP RO t readChunkR R ( R RP t char( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR_ � s c C` sO | d k r | j } n | j | j � \ | _ | _ d | _ d | _ d | _ | j j | � } | j r� | j | } d | _ n | s� t St | � d k r� t | d � } | d k s� d | k o� d k n r� | d | _ | d } q� n | j r| j | � n | j d d � } | j d d � } | | _ t | � | _ t S( Nu i i i����i i � i�� u u u ( RE t _defaultChunkSizeR[ RO RR RS R RP RM R" RT R8 R t ordRF t replacet True( R RO R' t lastv( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR^ � s0 ( c C` s: x3 t t t j | � � � D] } | j j d � q Wd S( Nu invalid-codepoint( t rangeR t invalid_unicode_ret findallRQ R& ( R R' t _( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRG % s "c C` s t } x� t j | � D]� } | r( q n t | j � � } | j � } t j | | | d !� r� t j | | | d !� } | t k r� | j j d � n t } q | d k r� | d k r� | t | � d k r� | j j d � q t } | j j d � q Wd S( Ni u invalid-codepointi � i�� i ( R8 Rf t finditerRa t groupt startR t isSurrogatePairt surrogatePairToCodepointt non_bmp_invalid_codepointsRQ R& Rc R ( R R' t skipt matcht codepointR t char_val( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRH ) s c C` sT y t | | f } Wnq t k r� d j g | D] } d t | � ^ q1 � } | sc d | } n t j d | � } t | | f <n Xg } x� t r@| j | j | j � } | d k r� | j | j k rPqnB | j � } | | j k r| j | j | j | !� | | _ Pn | j | j | j � | j � s� Pq� q� Wd j | � } | S( u� Returns a string of characters from the stream up to but not including any character in 'characters' or EOF. 'characters' must be a container that supports the 'in' method and iteration over its characters. u u \x%02xu ^%su [%s]+N( t charsUntilRegExt KeyErrorR) Ra t ret compileRc Rp R RP RE RO t endR& R^ ( R t characterst oppositet charst ct regexR+ t mRw t r( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt charsUntil@ s. , % c C` sS | d k rO | j d k r= | | j | _ | j d 7_ qO | j d 8_ n d S( Ni i ( RE RP R RO ( R R_ ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt ungeto s N( R0 R1 R2 R` R RN RL R[ R R_ RE R^ RG RH R8 R R� ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR< � s & /R= c B` sb e Z d Z d d d d d e d � Z d � Z d � Z e d � Z d � Z d � Z d � Z RS( u� Provides a unicode stream of characters to the HTMLTokenizer. This class takes care of character encoding and removing or replacing incorrect byte-sequences and also provides column and line tracking. u windows-1252c C` s� | j | � | _ t j | | j � d | _ d | _ | | _ | | _ | | _ | | _ | | _ | j | � | _ | j � d S( u� Initialises the HTMLInputStream. HTMLInputStream(source, [encoding]) -> Normalized stream from source for use by html5lib. source can be either a file-object, local filename or a string. The optional encoding parameter must be a string that indicates the encoding. If specified, that encoding will be used, regardless of any BOM or later declaration (such as in a meta element) i id N( RL t rawStreamR< R t numBytesMetat numBytesChardett override_encodingt transport_encodingt same_origin_parent_encodingt likely_encodingt default_encodingt determineEncodingRK RN ( R R> R� R� R� R� R� t useChardet( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR � s c C` s3 | j d j j | j d � | _ t j | � d S( Ni u replace( RK t codec_infot streamreaderR� RM R< RN ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRN � s "c C` sU t | d � r | } n t | � } y | j | j � � Wn t | � } n X| S( uv Produces a file object from source. source can be either a file object, local filename or a string. u read( R9 R R R R ( R R> R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRL � s c C` s | j � d f } | d d k r& | St | j � d f } | d d k rO | St | j � d f } | d d k rx | S| j � d f } | d d k r� | St | j � d f } | d d k r� | d j j d � r� | St | j � d f } | d d k r| S| r�y d d l m } Wn t k r4q�Xg } | � } xF | j s�| j j | j � } | soPn | j | � | j | � qGW| j � t | j d � } | j j d � | d k r�| d f Sn t | j � d f } | d d k r�| St d � d f S( Nu certaini u tentativeu utf-16( t UniversalDetectoru encodingu windows-1252( t detectBOMRE RJ R� R� t detectEncodingMetaR� t namet startswithR� t chardet.universaldetectorR� t ImportErrort doneR� R" R� R& t feedt closet resultR R� ( R t chardetRK R� t bufferst detectorR t encoding( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � sP ' c C` s� t | � } | d k r d S| j d k r: t d � } nr | | j d k rf | j d d f | _ nF | j j d � | d f | _ | j � t d | j d | f � � d S( Nu utf-16beu utf-16leu utf-8i u certainu Encoding changed from %s to %s( u utf-16beu utf-16le( RJ RE R� RK R� R RN R ( R t newEncoding( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt changeEncoding s c C` s� i d t j 6d t j 6d t j 6d t j 6d t j 6} | j j d � } | j | d � } d } | s� | j | � } d } | s� | j | d � } d } q� n | r� | j j | � t | � S| j j d � d Sd S( u� Attempts to detect at BOM at the start of the stream. If an encoding can be determined from the BOM return the name of the encoding otherwise return Noneu utf-8u utf-16leu utf-16beu utf-32leu utf-32bei i i i N( t codecst BOM_UTF8t BOM_UTF16_LEt BOM_UTF16_BEt BOM_UTF32_LEt BOM_UTF32_BER� R" t getR RJ RE ( R t bomDictt stringR� R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� s$ c C` sk | j j | j � } t | � } | j j d � | j � } | d k rg | j d k rg t d � } n | S( u9 Report the encoding declared by the meta element i u utf-16beu utf-16leu utf-8N( u utf-16beu utf-16le( R� R" R� t EncodingParserR t getEncodingRE R� RJ ( R R t parserR� ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� 9 s N( R0 R1 R2 RE Rc R RN RL R� R� R� R� ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR= � s ( > "t EncodingBytesc B` s� e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z e e e � Z d � Z e e � Z e d � Z d � Z d � Z d � Z RS( u� String-like object with an associated position and various extra methods If the position is ever greater than the string length then an exception is raisedc C` s t j | | j � � S( N( R! t __new__t lower( R t value( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� L s c C` s d | _ d S( Ni����( R[ ( R R� ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR P s c C` s | S( N( ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt __iter__T s c C` sS | j d } | _ | t | � k r/ t � n | d k rD t � n | | | d !S( Ni i ( R[ R t StopIterationR; ( R t p( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt __next__W s c C` s | j � S( N( R� ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt next_ s c C` sY | j } | t | � k r$ t � n | d k r9 t � n | d | _ } | | | d !S( Ni i ( R[ R R� R; ( R R� ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt previousc s c C` s+ | j t | � k r t � n | | _ d S( N( R[ R R� ( R R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt setPositionl s c C` s< | j t | � k r t � n | j d k r4 | j Sd Sd S( Ni ( R[ R R� RE ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt getPositionq s c C` s | | j | j d !S( Ni ( R ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt getCurrentByte{ s c C` sc | j } xJ | t | � k rU | | | d !} | | k rH | | _ | S| d 7} q W| | _ d S( u Skip past a list of charactersi N( R R R[ RE ( R Rz R� R{ ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRo � s c C` sc | j } xJ | t | � k rU | | | d !} | | k rH | | _ | S| d 7} q W| | _ d S( Ni ( R R R[ RE ( R Rz R� R{ ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt skipUntil� s c C` sQ | j } | | | t | � !} | j | � } | rM | j t | � 7_ n | S( u� Look for a sequence of bytes at the start of a string. If the bytes are found return True and advance the position to the byte after the match. Otherwise return False and leave the position alone( R R R� ( R R! R� R' R+ ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt matchBytes� s c C` sh | | j j | � } | d k r^ | j d k r= d | _ n | j | t | � d 7_ t St � d S( u� Look for the next sequence of bytes matching a given sequence. If a match is found advance the position to the last byte of the matchi����i i N( R t findR[ R Rc R� ( R R! t newPosition( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt jumpTo� s ( R0 R1 R2 R� R R� R� R� R� R� R� t propertyR R� t currentBytet spaceCharactersBytesRo R� R� R� ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� H s R� c B` s_ e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( u? Mini parser for detecting character encoding from meta elementsc C` s t | � | _ d | _ d S( u3 string - the data to work on for encoding detectionN( R� R' RE R� ( R R' ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR � s c C` s� d | j f d | j f d | j f d | j f d | j f d | j f f } xv | j D]k } t } xR | D]J \ } } | j j | � rk y | � } PWq� t k r� t } Pq� Xqk qk W| sX PqX qX W| j S( Ns <!--s <metas </s <!s <?R ( t handleCommentt handleMetat handlePossibleEndTagt handleOthert handlePossibleStartTagR' Rc R� R� R8 R� ( R t methodDispatchRh t keepParsingt keyt method( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s& c C` s | j j d � S( u Skip over commentss -->( R' R� ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s c C` sK | j j t k r t St } d } x"t rF| j � } | d k rG t S| d d k r� | d d k } | rC| d k rC| | _ t Sq% | d d k r� | d } t | � } | d k rC| | _ t Sq% | d d k r% t t | d � � } | j � } | d k rCt | � } | d k r@| r4| | _ t S| } q@qCq% q% Wd S( Ni s http-equivi s content-typet charsett content( R' R� R� Rc R8 RE t getAttributeR� RJ t ContentAttrParserR� t parse( R t hasPragmat pendingEncodingt attrt tentativeEncodingt codect contentParser( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s: c C` s | j t � S( N( t handlePossibleTagR8 ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s c C` s t | j � | j t � S( N( R� R' R� Rc ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s c C` s� | j } | j t k r9 | r5 | j � | j � n t S| j t � } | d k ra | j � n+ | j � } x | d k r� | j � } qp Wt S( NR ( R' R� t asciiLettersBytesR� R� Rc R� t spacesAngleBracketsR� RE ( R t endTagR' R{ R� ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s c C` s | j j d � S( NR ( R' R� ( R ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� s c C` s� | j } | j t t d g � B� } | d k r5 d Sg } g } x� t r� | d k r` | r` Pnz | t k r| | j � } Pn^ | d k r� d j | � d f S| t k r� | j | j � � n | d k r� d S| j | � t | � } qD W| d k r| j � d j | � d f St | � | j � } | d k r�| } x� t r�t | � } | | k r�t | � d j | � d j | � f S| t k r�| j | j � � q>| j | � q>Wn^ | d k r�d j | � d f S| t k r�| j | j � � n | d k r d S| j | � x} t r�t | � } | t k rSd j | � d j | � f S| t k ru| j | j � � q| d k r�d S| j | � qWd S( u_ Return a name,value pair for the next attribute in the stream, if one is found, or Nonet /R t =R( t 't "N( R N( R� R ( R� R� ( R' Ro R� t frozensetRE Rc R) t asciiUppercaseBytesR& R� R� R� R� ( R R' R{ t attrNamet attrValuet quoteChar( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� sf ( R0 R1 R2 R R� R� R� R� R� R� R� R� ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� � s $ R� c B` s e Z d � Z d � Z RS( c C` s | | _ d S( N( R' ( R R' ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR f s c C` s: y!| j j d � | j j d 7_ | j j � | j j d k sH d S| j j d 7_ | j j � | j j d k r� | j j } | j j d 7_ | j j } | j j | � r� | j | | j j !Sd SnP | j j } y( | j j t � | j | | j j !SWn t k r | j | SXWn t k r5d SXd S( NR� i R� R� R� ( R� R� ( R' R� R Ro R� RE R� R� R� ( R t quoteMarkt oldPosition( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� j s. ( R0 R1 R R� ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyR� e s c C` sw t | t � r: y | j d � } Wq: t k r6 d SXn | d k ro y t j | � SWqs t k rk d SXn d Sd S( u{ Return the python codec name corresponding to an encoding or None if the string doesn't correspond to a valid encoding.u asciiN( R3 R t decodet UnicodeDecodeErrorRE R t lookupt AttributeError( R� ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyRJ � s (4 t __future__R R R t pip._vendor.sixR R t pip._vendor.six.movesR R R� Ru t pip._vendorR t constantsR R R R R R( R t ioR R R� R� R$ t encodeR� R� R� R� t invalid_unicode_no_surrogateRD Rv t evalRf t setRn t ascii_punctuation_reRs t objectR RC R< R= R! R� R� R� RJ ( ( ( sE /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/_inputstream.pyt <module> sP " ((( J ��h�'
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