o
    (ga~                     @   s  d dl mZmZmZ d dlmZ d dlmZmZ d dl	Z	d dl
Z
d dlmZmZ d dlmZ ddlmZmZmZmZ dd	lmZ dd
lmZ edd eD Zedd eD Zedd eD ZeeddgB ZdZejred dkr{eddks}J e
 edd e!d d Z"ne
 eZ"h dZ#e
 dZ$i Z%G dd de&Z'dd Z(G dd de&Z)G dd de)Z*G dd  d e+Z,G d!d" d"e&Z-G d#d$ d$e&Z.d%d& Z/dS )'    )absolute_importdivisionunicode_literals)	text_type)http_clienturllibN)BytesIOStringIO)webencodings   )EOFspaceCharactersasciiLettersasciiUppercase)_ReparseException)_utilsc                 C      g | ]}| d qS asciiencode.0item r   i/var/www/python.lazyprojects.co.uk/venv/lib/python3.10/site-packages/pip/_vendor/html5lib/_inputstream.py
<listcomp>       r   c                 C   r   r   r   r   r   r   r   r      r   c                 C   r   r   r   r   r   r   r   r      r      >   <u   [---﷐-﷯￾￿🿾🿿𯿾𯿿𿿾𿿿񏿾񏿿񟿾񟿿񯿾񯿿񿿾񿿿򏿾򏿿򟿾򟿿򯿾򯿿򿿾򿿿󏿾󏿿󟿾󟿿󯿾󯿿󿿾󿿿􏿾􏿿]]z"\uD800-\uDFFF">            	 
               	 
       z[	- -/:-@\[-`{-~]c                   @   sH   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dS )BufferedStreamzBuffering for streams that do not have buffering of their own

    The buffer is implemented as a list of chunks on the assumption that
    joining many strings will be slow since it is O(n**2)
    c                 C   s   || _ g | _ddg| _d S )Nr    r   )streambufferposition)selfrC   r   r   r   __init__:   s   zBufferedStream.__init__c                 C   s<   d}| j d | jd  D ]}|t|7 }q|| jd 7 }|S Nr   r   )rD   rE   len)rF   poschunkr   r   r   tell?   s
   zBufferedStream.tellc                 C   sd   ||   ksJ |}d}t| j| |k r+|t| j| 8 }|d7 }t| j| |k s||g| _d S rH   )_bufferedBytesrI   rD   rE   )rF   rJ   offsetir   r   r   seekF   s   zBufferedStream.seekc                 C   sP   | j s| |S | jd t| j kr#| jd t| j d kr#| |S | |S )Nr   r   r    )rD   _readStreamrE   rI   _readFromBufferrF   bytesr   r   r   readO   s   


zBufferedStream.readc                 C   s   t dd | jD S )Nc                 S   s   g | ]}t |qS r   )rI   r   r   r   r   r   Y   s    z1BufferedStream._bufferedBytes.<locals>.<listcomp>)sumrD   rF   r   r   r   rM   X      zBufferedStream._bufferedBytesc                 C   s<   | j |}| j| | jd  d7  < t|| jd< |S rH   )rC   rU   rD   appendrE   rI   )rF   rT   datar   r   r   rQ   [   s
   zBufferedStream._readStreamc                 C   s   |}g }| j d }| j d }|t| jk rc|dkrc|dksJ | j| }|t|| kr6|}||| g| _ nt|| }|t|g| _ |d7 }|||||   ||8 }d}|t| jk rc|dks|rm|| | d|S )Nr   r       )rE   rI   rD   rY   rQ   join)rF   rT   remainingBytesrvbufferIndexbufferOffsetbufferedDatabytesToReadr   r   r   rR   b   s(   



zBufferedStream._readFromBufferN)__name__
__module____qualname____doc__rG   rL   rP   rU   rM   rQ   rR   r   r   r   r   rB   3   s    		rB   c                 K   s   t | tjst | tjjrt | jtjrd}nt| dr%t | dt	}nt | t	}|rCdd |D }|r;t
d| t| fi |S t| fi |S )NFrU   r   c                 S   s   g | ]	}| d r|qS )	_encoding)endswith)r   xr   r   r   r      s    z#HTMLInputStream.<locals>.<listcomp>z3Cannot set an encoding with a unicode input, set %r)
isinstancer   HTTPResponser   responseaddbasefphasattrrU   r   	TypeErrorHTMLUnicodeInputStreamHTMLBinaryInputStream)sourcekwargs	isUnicode	encodingsr   r   r   HTMLInputStream}   s   

rw   c                   @   sp   e Zd ZdZdZdd Zdd Zdd Zd	d
 Zdd Z	dd Z
dddZdd Zdd ZdddZdd ZdS )rq   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.

    i (  c                 C   sZ   t jsd| _ntddkr| j| _n| j| _dg| _tddf| _| 	|| _
|   dS )  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)

        Nu   􏿿r   r   utf-8certain)r   supports_lone_surrogatesreportCharacterErrorsrI   characterErrorsUCS4characterErrorsUCS2newLineslookupEncodingcharEncoding
openStream
dataStreamreset)rF   rs   r   r   r   rG      s   
zHTMLUnicodeInputStream.__init__c                 C   s.   d| _ d| _d| _g | _d| _d| _d | _d S )N r   )rK   	chunkSizechunkOffseterrorsprevNumLinesprevNumCols_bufferedCharacterrW   r   r   r   r      s   
zHTMLUnicodeInputStream.resetc                 C   s   t |dr	|}|S t|}|S zvProduces a file object from source.

        source can be either a file object, local filename or a string.

        rU   )ro   r	   rF   rs   rC   r   r   r   r      s
   
z!HTMLUnicodeInputStream.openStreamc                 C   sZ   | j }|dd|}| j| }|dd|}|dkr#| j| }||fS ||d  }||fS )N
r   r    r   )rK   countr   rfindr   )rF   rN   rK   nLinespositionLinelastLinePospositionColumnr   r   r   	_position   s   

z HTMLUnicodeInputStream._positionc                 C   s   |  | j\}}|d |fS )z:Returns (line, col) of the current position in the stream.r   )r   r   )rF   linecolr   r   r   rE      s   zHTMLUnicodeInputStream.positionc                 C   s6   | j | jkr|  stS | j }| j| }|d | _ |S )zo Read one character from the stream or queue if available. Return
            EOF when EOF is reached.
        r   )r   r   	readChunkr   rK   )rF   r   charr   r   r   r      s   

zHTMLUnicodeInputStream.charNc                 C   s   |d u r| j }| | j\| _| _d| _d| _d| _| j|}| j	r,| j	| }d | _	n|s0dS t
|dkrWt|d }|dksLd|  krJdkrWn n|d | _	|d d }| jr_| | |d	d
}|dd
}|| _t
|| _dS )Nr   r   Fr   r          i  z
r   T)_defaultChunkSizer   r   r   r   rK   r   r   rU   r   rI   ordr}   replace)rF   r   rZ   lastvr   r   r   r      s0   
 


z HTMLUnicodeInputStream.readChunkc                 C   s(   t tt|D ]}| jd q	d S )Ninvalid-codepoint)rangerI   invalid_unicode_refindallr   rY   )rF   rZ   _r   r   r   r~     s   z*HTMLUnicodeInputStream.characterErrorsUCS4c                 C   s   d}t |D ]Q}|rqt| }| }t|||d  r9t|||d  }|tv r6| j	
d d}q|dkrP|dkrP|t|d krP| j	
d qd}| j	
d qd S )NF   r   Tr   i  r   )r   finditerr   groupstartr   isSurrogatePairsurrogatePairToCodepointnon_bmp_invalid_codepointsr   rY   rI   )rF   rZ   skipmatch	codepointrJ   char_valr   r   r   r   #  s"   z*HTMLUnicodeInputStream.characterErrorsUCS2Fc           
      C   s  zt ||f }W n4 ty<   	 |D ]
}t|dk sJ qddd |D }|s-d| }td|  }t ||f< Y nw g }	 || j| j}|du rT| j| j	krSn*n|
 }|| j	krl|| j| j|  || _n|| j| jd  |  s|nq@d|}	|	S )	z 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.
        T   r   c                 S   s   g | ]}d t | qS )z\x%02x)r   )r   cr   r   r   r   H  s    z5HTMLUnicodeInputStream.charsUntil.<locals>.<listcomp>z^%sz[%s]+N)charsUntilRegExKeyErrorr   r\   recompiler   rK   r   r   endrY   r   )
rF   
charactersoppositecharsr   regexr^   mr   rr   r   r   
charsUntil:  s:   	

z!HTMLUnicodeInputStream.charsUntilc                 C   sZ   |t ur)| jdkr|| j | _|  jd7  _d S |  jd8  _| j| j |ks+J d S d S rH   )r   r   rK   r   )rF   r   r   r   r   ungeti  s   
zHTMLUnicodeInputStream.ungetN)F)rc   rd   re   rf   r   rG   r   r   r   rE   r   r   r~   r   r   r   r   r   r   r   rq      s     
&
/rq   c                   @   sR   e Zd ZdZ			dddZdd Zd	d
 ZdddZdd Zdd Z	dd Z
dS )rr   rx   Nwindows-1252Tc                 C   sn   |  || _t| | j d| _d| _|| _|| _|| _|| _	|| _
| || _| jd dus1J |   dS )ry   i   d   r   N)r   	rawStreamrq   rG   numBytesMetanumBytesChardetoverride_encodingtransport_encodingsame_origin_parent_encodinglikely_encodingdefault_encodingdetermineEncodingr   r   )rF   rs   r   r   r   r   r   
useChardetr   r   r   rG     s   zHTMLBinaryInputStream.__init__c                 C   s&   | j d j| jd| _t|  d S )Nr   r   )r   
codec_infostreamreaderr   r   rq   r   rW   r   r   r   r     s   zHTMLBinaryInputStream.resetc                 C   sJ   t |dr|}nt|}z
||  W |S  ty$   t|}Y |S w r   )ro   r   rP   rL   	ExceptionrB   r   r   r   r   r     s   

z HTMLBinaryInputStream.openStreamc                 C   s  |   df}|d d ur|S t| jdf}|d d ur|S t| jdf}|d d ur,|S |  df}|d d ur:|S t| jdf}|d d urQ|d jdsQ|S t| jdf}|d d ur`|S |rzddl	m
} W n	 tys   Y n@w g }| }|js| j| j}t|tsJ |sn|| || |jr||  t|jd }| jd |d ur|dfS t| jdf}|d d ur|S tddfS )Nr{   r   	tentativezutf-16)UniversalDetectorencodingr   )	detectBOMr   r   r   detectEncodingMetar   name
startswithr   %pip._vendor.chardet.universaldetectorr   ImportErrordoner   rU   r   rj   rT   rY   feedcloseresultrP   r   )rF   chardetr   r   buffersdetectorrD   r   r   r   r   r     sV   

z'HTMLBinaryInputStream.determineEncodingc                 C   s   | j d dks	J t|}|d u rd S |jdv r$td}|d us"J d S || j d kr5| j d df| _ d S | jd |df| _ |   td| j d |f )Nr   r{   utf-16beutf-16lerz   r   zEncoding changed from %s to %s)r   r   r   r   rP   r   r   )rF   newEncodingr   r   r   changeEncoding  s   

z$HTMLBinaryInputStream.changeEncodingc              
   C   s   t jdt jdt jdt jdt jdi}| jd}t|t	sJ |
|dd }d}|s?|
|}d}|s?|
|dd	 }d	}|rK| j| t|S | jd
 dS )zAttempts 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 Nonerz   r   r   zutf-32lezutf-32be   N   r   r   )codecsBOM_UTF8BOM_UTF16_LEBOM_UTF16_BEBOM_UTF32_LEBOM_UTF32_BEr   rU   rj   rT   getrP   r   )rF   bomDictstringr   rP   r   r   r   r     s&   
zHTMLBinaryInputStream.detectBOMc                 C   sV   | j | j}t|tsJ t|}| j d | }|dur)|jdv r)t	d}|S )z9Report the encoding declared by the meta element
        r   Nr   rz   )
r   rU   r   rj   rT   EncodingParserrP   getEncodingr   r   )rF   rD   parserr   r   r   r   r   3  s   z(HTMLBinaryInputStream.detectEncodingMeta)NNNNr   T)T)rc   rd   re   rf   rG   r   r   r   r   r   r   r   r   r   r   rr   z  s    
*
>"rr   c                   @   s   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dd Zeee
Zdd ZeeZefddZdd Zdd Zdd ZdS )EncodingByteszString-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 |tsJ t| | S r   )rj   rT   __new__lowerrF   valuer   r   r   r   F  s   zEncodingBytes.__new__c                 C   s
   d| _ d S )Nr    )r   r   r   r   r   rG   J  s   
zEncodingBytes.__init__c                 C   s   | S r   r   rW   r   r   r   __iter__N  s   zEncodingBytes.__iter__c                 C   s<   | j d  }| _ |t| krt|dk rt| ||d  S )Nr   r   r   rI   StopIterationrp   rF   pr   r   r   __next__Q  s   zEncodingBytes.__next__c                 C   s   |   S r   )r   rW   r   r   r   nextY  s   zEncodingBytes.nextc                 C   s@   | j }|t| krt|dk rt|d  | _ }| ||d  S rH   r   r   r   r   r   previous]  s   zEncodingBytes.previousc                 C   s   | j t| kr	t|| _ d S r   r   rI   r   )rF   rE   r   r   r   setPositionf  s   
zEncodingBytes.setPositionc                 C   s&   | j t| kr	t| j dkr| j S d S )Nr   r  rW   r   r   r   getPositionk  s
   
zEncodingBytes.getPositionc                 C   s   | | j | j d  S Nr   )rE   rW   r   r   r   getCurrentByteu  rX   zEncodingBytes.getCurrentBytec                 C   sR   | j }|t| k r$| ||d  }||vr|| _|S |d7 }|t| k s	|| _dS )zSkip past a list of charactersr   NrE   rI   r   rF   r   r   r   r   r   r   r   z  s   zEncodingBytes.skipc                 C   sR   | j }|t| k r$| ||d  }||v r|| _|S |d7 }|t| k s	|| _d S r  r  r  r   r   r   	skipUntil  s   zEncodingBytes.skipUntilc                 C   s(   |  || j}|r|  jt|7  _|S )zLook for a sequence of bytes at the start of a string. If the bytes
        are found return True and advance the position to the byte after the
        match. Otherwise return False and leave the position alone)r   rE   rI   )rF   rT   r^   r   r   r   
matchBytes  s   zEncodingBytes.matchBytesc                 C   s6   z|  || jt| d | _W dS  ty   tw )zLook for the next sequence of bytes matching a given sequence. If
        a match is found advance the position to the last byte of the matchr   T)indexrE   rI   r   
ValueErrorr   rS   r   r   r   jumpTo  s   zEncodingBytes.jumpToN)rc   rd   re   rf   r   rG   r   r   r   r   r  r  propertyrE   r  currentBytespaceCharactersBytesr   r  r	  r  r   r   r   r   r   B  s"    	
	r   c                   @   sX   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dd Zdd ZdS )r   z?Mini parser for detecting character encoding from meta elementsc                 C   s   t || _d| _dS )z3string - the data to work on for encoding detectionN)r   rZ   r   rF   rZ   r   r   r   rG     s   

zEncodingParser.__init__c              
   C   s   d| j vrd S d| jfd| jfd| jfd| jfd| jfd| jff}| j D ]?}d}z| j d W n ty<   Y  | j	S w |D ]\}}| j |r\z| }W  n ty[   d}Y  nw q?|sc | j	S q$| j	S )	Ns   <metas   <!--s   </s   <!s   <?r   TF)
rZ   handleComment
handleMetahandlePossibleEndTaghandleOtherhandlePossibleStartTagr  r   r	  r   )rF   methodDispatchr   keepParsingkeymethodr   r   r   r     s@   

zEncodingParser.getEncodingc                 C      | j dS )zSkip over commentss   -->rZ   r  rW   r   r   r   r    s   zEncodingParser.handleCommentc                 C   s   | j jtvrdS d}d }	 |  }|d u rdS |d dkr/|d dk}|r.|d ur.|| _dS n?|d dkrG|d }t|}|d urF|| _dS n'|d dkrntt|d }| }|d urnt|}|d urn|rl|| _dS |}q)	NTFr   s
   http-equivr   s   content-type   charsets   content)	rZ   r  r  getAttributer   r   ContentAttrParserr   parse)rF   	hasPragmapendingEncodingattrtentativeEncodingcodeccontentParserr   r   r   r    s@   zEncodingParser.handleMetac                 C   s
   |  dS )NF)handlePossibleTagrW   r   r   r   r    s   
z%EncodingParser.handlePossibleStartTagc                 C   s   t | j | dS )NT)r   rZ   r&  rW   r   r   r   r    s   

z#EncodingParser.handlePossibleEndTagc                 C   sj   | j }|jtvr|r|  |   dS |t}|dkr#|  dS |  }|d ur3|  }|d us+dS )NTr   )rZ   r  asciiLettersBytesr   r  r  spacesAngleBracketsr  )rF   endTagrZ   r   r"  r   r   r   r&    s   

z EncodingParser.handlePossibleTagc                 C   r  )Nr   r  rW   r   r   r   r    s   zEncodingParser.handleOtherc                 C   s  | j }|ttdgB }|du st|dksJ |dv rdS g }g }	 |dkr+|r+n0|tv r4| }n'|dv r?d|dfS |tv rK||  n|du rQdS || t	|}q$|dkrj|
  d|dfS t	| | }|d	v r|}	 t	|}||krt	| d|d|fS |tv r||  n|| qy|d
krd|dfS |tv r||  n|du rdS || 	 t	|}|tv rd|d|fS |tv r||  n|du rdS || q)z_Return a name,value pair for the next attribute in the stream,
        if one is found, or None   /Nr   )r   NT   =)r*  r   r[   )   '   "r   )rZ   r   r  	frozensetrI   r\   asciiUppercaseBytesrY   r   r   r   r(  )rF   rZ   r   attrName	attrValue	quoteCharr   r   r   r    sn   



zEncodingParser.getAttributeN)rc   rd   re   rf   rG   r   r  r  r  r  r&  r  r  r   r   r   r   r     s    $r   c                   @   s   e Zd Zdd Zdd ZdS )r  c                 C   s   t |tsJ || _d S r   )rj   rT   rZ   r  r   r   r   rG   a  s   
zContentAttrParser.__init__c                 C   s  zy| j d | j  jd7  _| j   | j jdksW d S | j  jd7  _| j   | j jdv rS| j j}| j  jd7  _| j j}| j |rP| j || j j W S W d S | j j}z| j t | j || j j W W S  tyy   | j |d   Y W S w  ty   Y d S w )Nr  r   r+  )r-  r,  )rZ   r  rE   r   r  r  r  r   )rF   	quoteMarkoldPositionr   r   r   r  e  s2   

zContentAttrParser.parseN)rc   rd   re   rG   r  r   r   r   r   r  `  s    r  c                 C   s\   t | trz| d} W n
 ty   Y dS w | dur,zt| W S  ty+   Y dS w dS )z{Return the python codec name corresponding to an encoding or None if the
    string doesn't correspond to a valid encoding.r   N)rj   rT   decodeUnicodeDecodeErrorr
   lookupAttributeError)r   r   r   r   r     s   
r   )0
__future__r   r   r   pip._vendor.sixr   pip._vendor.six.movesr   r   r   r   ior   r	   pip._vendorr
   	constantsr   r   r   r   r   r   r   r.  r  r'  r/  r(  invalid_unicode_no_surrogater|   r   r   evalr   r   ascii_punctuation_rer   objectrB   rw   rq   rr   rT   r   r   r  r   r   r   r   r   <module>   sJ    

J g Ib ='