U
    Å½„b‡  ã                *   @   s`  d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZdd„ Zdddddd	d
dddddddddddddddddddddd d!d"d#d$d%d&d'd(d)d*d+d,d-œ)Z	d.d/„ Z
G d0d1„ d1eƒZd2d3„ ZG d4d5„ d5e d6d7d8g¡ƒZG d9d:„ d:eƒZG d;d<„ d<ƒZG d=d>„ d>ƒZG d?d@„ d@eƒZG dAdB„ dBejƒZG dCdD„ dDƒZG dEdF„ dFƒZdGdH„ ZG dIdJ„ dJƒZdS )Ké    Nc                 C   s   t j|  d¡ S )NÚ	utf_16_be)ÚcodecsÚBOM_UTF16_BEÚencode)Ús© r   ú1/tmp/pip-unpacked-wheel-_wxctax1/PIL/PdfParser.pyÚencode_text   s    r	   úu   Ë˜u   Ë‡u   Ë†u   Ë™u   Ë�u   Ë›u   Ëšu   Ëœu   â€¢u   â€ u   â€¡u   â€¦u   â€”u   â€“u   Æ’u   â�„u   â€¹u   â€ºu   âˆ’u   â€°u   â€žu   â€œu   â€�u   â€˜u   â€™u   â€šu   â„¢u   ï¬�u   ï¬‚u   Å�u   Å’u   Å u   Å¸u   Å½u   Ä±u   Å‚u   Å“u   Å¡u   Å¾u   â‚¬))é   é   é   é   é   é   é   é   é   é€   é�   é‚   éƒ   é„   é…   é†   é‡   éˆ   é‰   éŠ   é‹   éŒ   é�   éŽ   é�   é�   é‘   é’   é“   é”   é•   é–   é—   é˜   é™   éš   é›   éœ   é�   éž   é    c                 C   sH   | d t tjƒ… tjkr0| t tjƒd …  d¡S d dd„ | D ƒ¡S d S )Nr   Ú c                 s   s   | ]}t  |t|ƒ¡V  qd S ©N)ÚPDFDocEncodingÚgetÚchr)Ú.0Úbyter   r   r   Ú	<genexpr>B   s     zdecode_text.<locals>.<genexpr>)Úlenr   r   ÚdecodeÚjoin)Úbr   r   r   Údecode_text>   s    r@   c                   @   s   e Zd ZdZdS )ÚPdfFormatErrorz\An error that probably indicates a syntactic or semantic error in the
    PDF file structureN)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r   r   rA   E   s   rA   c                 C   s   | st |ƒ‚d S r5   )rA   )Ú	conditionÚerror_messager   r   r   Úcheck_format_conditionL   s    rH   c                   @   s4   e Zd Zdd„ Zdd„ Zdd„ Zdd„ Zd	d
„ ZdS )ÚIndirectReferencec                 C   s   d|  S )Nz%s %s Rr   ©Úselfr   r   r   Ú__str__T   s    zIndirectReference.__str__c                 C   s   |   ¡  d¡S ©Núus-ascii)rL   r   rJ   r   r   r   Ú	__bytes__W   s    zIndirectReference.__bytes__c                 C   s$   |j | j ko"|j| jko"|j| jkS r5   )Ú	__class__Ú	object_idÚ
generation©rK   Úotherr   r   r   Ú__eq__Z   s
    
ÿ
ýzIndirectReference.__eq__c                 C   s
   | |k S r5   r   rS   r   r   r   Ú__ne__a   s    zIndirectReference.__ne__c                 C   s   t | j| jfƒS r5   )ÚhashrQ   rR   rJ   r   r   r   Ú__hash__d   s    zIndirectReference.__hash__N)rB   rC   rD   rL   rO   rU   rV   rX   r   r   r   r   rI   Q   s
   rI   ZIndirectReferenceTuplerQ   rR   c                   @   s   e Zd Zdd„ ZdS )ÚIndirectObjectDefc                 C   s   d|  S )Nz	%s %s objr   rJ   r   r   r   rL   i   s    zIndirectObjectDef.__str__N)rB   rC   rD   rL   r   r   r   r   rY   h   s   rY   c                   @   sL   e 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S )Ú	XrefTablec                 C   s    i | _ i | _ddi| _d| _d S )Nr   i   F)Úexisting_entriesÚnew_entriesÚdeleted_entriesÚreading_finishedrJ   r   r   r   Ú__init__n   s    
zXrefTable.__init__c                 C   s2   | j r|| j|< n
|| j|< || jkr.| j|= d S r5   )r^   r\   r[   r]   ©rK   ÚkeyÚvaluer   r   r   Ú__setitem__t   s
    

zXrefTable.__setitem__c                 C   s0   z| j | W S  tk
r*   | j|  Y S X d S r5   )r\   ÚKeyErrorr[   ©rK   ra   r   r   r   Ú__getitem__|   s    zXrefTable.__getitem__c                 C   s†   || j kr0| j | d d }| j |= || j|< nR|| jkrX| j| d d }|| j|< n*|| jkrn| j| }ntdt|ƒ d ƒ‚d S )Né   z
object ID z+ cannot be deleted because it doesn't exist)r\   r]   r[   Ú
IndexErrorÚstr)rK   ra   rR   r   r   r   Ú__delitem__‚   s    


ÿzXrefTable.__delitem__c                 C   s   || j kp|| jkS r5   )r[   r\   re   r   r   r   Ú__contains__‘   s    zXrefTable.__contains__c                 C   s.   t t| j ¡ ƒt| j ¡ ƒB t| j ¡ ƒB ƒS r5   )r<   Úsetr[   Úkeysr\   r]   rJ   r   r   r   Ú__len__”   s    ÿþÿzXrefTable.__len__c                 C   s*   t | j ¡ ƒt | j ¡ ƒ t | j ¡ ƒB S r5   )rl   r[   rm   r]   r\   rJ   r   r   r   rm   ›   s    þzXrefTable.keysc              	   C   sL  t t| j ¡ ƒt| j ¡ ƒB ƒ}t t| j ¡ ƒƒ}| ¡ }| d¡ |�rHd }t|ƒD ]>\}}|d ksr|d |krx|}qV|d |… }||d … } qžqV|}d }| d|d t|ƒf ¡ |D ]ˆ}	|	| jkrà| d| j|	  ¡ q¼| 	d¡}
t
|	|
kd|	› d|
› �ƒ z|d }W n tk
�r*   d}Y nX | d|| j|	 f ¡ q¼qD|S )	Ns   xref
rg   s   %d %d
r   s   %010d %05d n 
z*expected the next deleted object ID to be z, instead found s   %010d %05d f 
)Úsortedrl   r\   rm   r]   ÚtellÚwriteÚ	enumerater<   ÚpoprH   rh   )rK   Úfrm   Zdeleted_keysZ	startxrefÚprevÚindexra   Zcontiguous_keysrQ   Zthis_deleted_object_idZnext_in_linked_listr   r   r   rq       sB     


þ
ÿÿzXrefTable.writeN)rB   rC   rD   r_   rc   rf   rj   rk   rn   rm   rq   r   r   r   r   rZ   m   s   rZ   c                   @   sd   e Zd Zdd„ Zdd„ Zdd„ Zdd„ Zd	d
„ Zedd„ ƒZ	e
eddƒƒdd„ dD ƒ Zdd„ ZdS )ÚPdfNamec                 C   s6   t |tƒr|j| _nt |tƒr&|| _n| d¡| _d S rM   )Ú
isinstancerw   ÚnameÚbytesr   )rK   ry   r   r   r   r_   É   s
    


zPdfName.__init__c                 C   s   | j  d¡S rM   )ry   r=   rJ   r   r   r   Úname_as_strÑ   s    zPdfName.name_as_strc                 C   s    t |tƒr|j| jkp|| jkS r5   )rx   rw   ry   rS   r   r   r   rU   Ô   s    ÿþzPdfName.__eq__c                 C   s
   t | jƒS r5   )rW   ry   rJ   r   r   r   rX   Ù   s    zPdfName.__hash__c                 C   s   dt | jƒ› d�S )NzPdfName(ú))Úreprry   rJ   r   r   r   Ú__repr__Ü   s    zPdfName.__repr__c                 C   s   | t  |¡ƒS r5   )Ú	PdfParserÚinterpret_name)ÚclsÚdatar   r   r   Úfrom_pdf_streamß   s    zPdfName.from_pdf_streamé!   é   c                 C   s   h | ]}t |ƒ’qS r   )Úord)r9   Úcr   r   r   Ú	<setcomp>ã   s     zPdfName.<setcomp>z#%/()<>[]{}c                 C   s@   t dƒ}| jD ](}|| jkr(| |¡ q| d| ¡ qt|ƒS )Nó   /s   #%02X)Ú	bytearrayry   Úallowed_charsÚappendÚextendrz   )rK   Úresultr?   r   r   r   rO   å   s    

zPdfName.__bytes__N)rB   rC   rD   r_   r{   rU   rX   r~   Úclassmethodrƒ   rl   Úranger‹   rO   r   r   r   r   rw   È   s   
rw   c                   @   s   e Zd Zdd„ ZdS )ÚPdfArrayc                 C   s   dd  dd„ | D ƒ¡ d S )Ns   [ ó    c                 s   s   | ]}t |ƒV  qd S r5   )Úpdf_repr)r9   Úxr   r   r   r;   ñ   s     z%PdfArray.__bytes__.<locals>.<genexpr>s    ])r>   rJ   r   r   r   rO   ð   s    zPdfArray.__bytes__N)rB   rC   rD   rO   r   r   r   r   r‘   ï   s   r‘   c                   @   s$   e Zd Zdd„ Zdd„ Zdd„ ZdS )ÚPdfDictc                 C   s,   |dkrt j | ||¡ n|| | d¡< d S )Nr‚   rN   )ÚcollectionsÚUserDictÚ__setattr__r   r`   r   r   r   r˜   õ   s    zPdfDict.__setattr__c              
   C   s,  z| |  d¡ }W n, tk
r> } zt|ƒ|‚W 5 d }~X Y nX t|tƒrRt|ƒ}| d¡�r(| d¡rt|dd … }d}t|ƒdkrÀ|d }t	|dd… ƒd	 }t|ƒd
krÀ|t	|dd
… ƒ7 }dd t|ƒd … }t
 |d t|ƒd … |¡}|dk�r(|d	9 }|dk�r|d9 }t
 t |¡| ¡}|S )NrN   ÚDatezD:é   ÚZé   é   é   é<   é   é   z%Y%m%d%H%M%S)ú+ú-r¢   éÿÿÿÿ)r   rd   ÚAttributeErrorrx   rz   r@   ÚendswithÚ
startswithr<   ÚintÚtimeÚstrptimeÚgmtimeÚcalendarÚtimegm)rK   ra   rb   ÚeZrelationshipÚoffsetÚformatr   r   r   Ú__getattr__û   s.    



zPdfDict.__getattr__c                 C   sn   t dƒ}|  ¡ D ]J\}}|d kr"qt|ƒ}| d¡ | tt|ƒƒ¡ | d¡ | |¡ q| d¡ t|ƒS )Ns   <<ó   
r’   s   
>>)rŠ   Úitemsr“   r�   rz   rw   )rK   Úoutra   rb   r   r   r   rO     s    


zPdfDict.__bytes__N)rB   rC   rD   r˜   r±   rO   r   r   r   r   r•   ô   s   r•   c                   @   s   e Zd Zdd„ Zdd„ ZdS )Ú	PdfBinaryc                 C   s
   || _ d S r5   )r‚   )rK   r‚   r   r   r   r_   %  s    zPdfBinary.__init__c                 C   s   dd  dd„ | jD ƒ¡ S )Ns   <%s>ó    c                 s   s   | ]}d | V  qdS )s   %02XNr   ©r9   r?   r   r   r   r;   )  s     z&PdfBinary.__bytes__.<locals>.<genexpr>)r>   r‚   rJ   r   r   r   rO   (  s    zPdfBinary.__bytes__N)rB   rC   rD   r_   rO   r   r   r   r   rµ   $  s   rµ   c                   @   s   e Zd Zdd„ Zdd„ ZdS )Ú	PdfStreamc                 C   s   || _ || _d S r5   )Ú
dictionaryÚbuf)rK   r¹   rº   r   r   r   r_   -  s    zPdfStream.__init__c                 C   sŠ   z| j j}W n tk
r&   | j Y S X |dkrnz| j j}W n tk
rX   | j j}Y nX tj| jt|ƒd�S t	dt
| j jƒ› d�ƒ‚d S )Ns   FlateDecode)Úbufsizezstream filter z unknown/unsupported)r¹   ÚFilterr¥   rº   ZDLÚLengthÚzlibÚ
decompressr¨   ÚNotImplementedErrorr}   )rK   ÚfilterZexpected_lengthr   r   r   r=   1  s    ÿzPdfStream.decodeN)rB   rC   rD   r_   r=   r   r   r   r   r¸   ,  s   r¸   c                 C   s  | dkrdS | dkrdS | d kr$dS t | ttttfƒr>t| ƒS t | tƒrVt| ƒ d¡S t | t	ƒrnt| ƒ d¡S t | t
jƒr”dt
 d| ¡ d¡ d	 S t | tƒrªtt| ƒƒS t | tƒrÀtt| ƒƒS t | tƒrÖtt| ƒƒS t | tƒ�r|  d
d¡} |  dd¡} |  d	d¡} d|  d	 S t| ƒS d S )NTs   trueFs   falses   nullrN   s   (D:z%Y%m%d%H%M%SZó   )ó   \s   \\ó   (ó   \(s   \))rx   rw   r•   r‘   rµ   rz   r¨   ri   r   Úfloatr©   Ústruct_timeÚstrftimeÚdictÚlistr“   r	   Úreplace)r”   r   r   r   r“   B  s4    




r“   c                    @   sî  e Zd ZdZdrd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d„ Zdsdd„Zdd„ Zdd „ Zd!d"„ Zed#d$„ ƒZd%d&„ Zdtd'd(„Zd)Zd*Zd+Zd,Zed- Zed. Zd/Zd0Zee e Ze  !ed1 e d2 e d3 e d4 e d5 e d6 e j"¡Z#e  !ed1 e d7 e d3 e d4 e d5 e e j"¡Z$d8d9„ Z%d:d;„ Z&e  !e¡Z'e  !ed< e d= ¡Z(e  !ed> ¡Z)e  !ed? e ¡Z*e+d@dA„ ƒZ,e  !dB¡Z-e+dudDdE„ƒZ.e  !edF e d= ¡Z/e  !edG e d= ¡Z0e  !edH e d= ¡Z1e  !edI e d= ¡Z2e  !edJ e d= ¡Z3e  !edK ¡Z4e  !edL ¡Z5e  !edM e dN ¡Z6e  !edO ¡Z7e  !edP e dP e dQ e d= ¡Z8e  !edP e dP e dR e d= ¡Z9e  !edS e d= ¡Z:e  !dTe dU e dV ¡Z;e  !edW ¡Z<e  !edX e d= ¡Z=e+dvdZd[„ƒZ>e  !d\¡Z?d]d^d_d`dadbdcdddedfdTdTd=d=dgdge@d]ƒd^e@d_ƒd`e@daƒdbe@dcƒdde@deƒdfe@dTƒdTe@d=ƒd=e@dgƒdgiZAe+dhdi„ ƒZBe  !edj e ¡ZCe  !ed4 e d4 e e ¡ZDe  !dk¡ZEdldm„ ZFdwdndo„ZGdxdpdq„ZHdS )yr   z|Based on
    https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/PDF32000_2008.pdf
    Supports PDF up to 1.4
    Nr   Úrbc                 C   s  |r|rt dƒ‚|| _|| _|| _|| _d| _d| _|d k	rZ|d krZt||ƒ | _}d| _|d k	rŽ|  |¡ | _}d| _|sŽt	|dƒrŽ|j
| _i | _|r¢|  ¡  nTd | _| _tƒ | _d | _tƒ | _d | _i | _g | _g | _d | _d | _i | _tƒ | _d| j_|�r|  ¡  d S )Nz4specify buf or f or filename, but not both buf and fFTry   r   )ÚRuntimeErrorÚfilenamerº   rt   Ústart_offsetÚshould_close_bufÚshould_close_fileÚopenÚget_buf_from_fileÚhasattrry   Úcached_objectsÚread_pdf_infoÚfile_size_totalÚfile_size_thisr•   ÚrootÚroot_refÚinfoÚinfo_refÚpage_tree_rootÚpagesÚ
orig_pagesÚ	pages_refÚlast_xref_section_offsetÚtrailer_dictrZ   Ú
xref_tabler^   Úseek_end)rK   rÎ   rt   rº   rÏ   Úmoder   r   r   r_   g  sD    
zPdfParser.__init__c                 C   s   | S r5   r   rJ   r   r   r   Ú	__enter__Œ  s    zPdfParser.__enter__c                 C   s   |   ¡  dS )NF)Úclose)rK   Úexc_typeÚ	exc_valueÚ	tracebackr   r   r   Ú__exit__�  s    zPdfParser.__exit__c                 C   s   |   ¡  |  ¡  d S r5   )Ú	close_bufrä   rJ   r   r   r   Ústart_writing“  s    zPdfParser.start_writingc                 C   s.   z| j  ¡  W n tk
r"   Y nX d | _ d S r5   )rº   rç   r¥   rJ   r   r   r   rì   —  s
    zPdfParser.close_bufc                 C   s2   | j r|  ¡  | jd k	r.| jr.| j ¡  d | _d S r5   )rÐ   rì   rt   rÑ   rç   rJ   r   r   r   rç   ž  s
    
zPdfParser.closec                 C   s   | j  dtj¡ d S )Nr   )rt   ÚseekÚosÚSEEK_ENDrJ   r   r   r   rä   ¥  s    zPdfParser.seek_endc                 C   s   | j  d¡ d S )Ns	   %PDF-1.4
)rt   rq   rJ   r   r   r   Úwrite_header¨  s    zPdfParser.write_headerc                 C   s   | j  d|› d� ¡ ¡ d S )Nz% Ú
)rt   rq   r   )rK   r   r   r   r   Úwrite_comment«  s    zPdfParser.write_commentc                 C   sl   |   ¡  |  | j ¡ ¡| _|  d¡| _|  ¡  | j| jtdƒ| jd� | j| jtdƒt	| j
ƒ| j
d� | jS )Nr   ó   Catalog)ÚTypeZPagesó   Pages)rõ   ZCountZKids)Údel_rootÚnext_object_idrt   rp   rÚ   rà   Úrewrite_pagesÚ	write_objrw   r<   rÞ   rJ   r   r   r   Úwrite_catalog®  s    üzPdfParser.write_catalogc                 C   sî   g }t | jƒD ]˜\}}| j| }| j|j= | |tdƒ ¡ || jkrHqi }| ¡ D ]\}}||| 	¡ < qT| j
|d< | jd|Ž}t | jƒD ]\}	}
|
|krŠ|| j|	< qŠq|D ]6}|r¬| j| }|j| jkrÔ| j|j= | dd ¡}q°q¬g | _d S )Ns   ParentÚParent)N)rr   rß   rÕ   rã   rQ   rŒ   rw   rÞ   r³   r{   rà   Ú
write_pager7   )rK   Zpages_tree_nodes_to_deleteÚiZpage_refZ	page_infoZstringified_page_infora   rb   Znew_page_refÚjZcur_page_refZpages_tree_node_refZpages_tree_noder   r   r   rù   ¼  s,    





zPdfParser.rewrite_pagesc                 C   sš   |r|   ¡  || _| jr(|  d | j¡| _| j | j¡}t| jƒ}| j|dœ}| j	d k	r`| j	|d< | jrp| j|d< || _	| j dt
t|ƒƒ d|  ¡ d S )N)ó   Rootó   Sizeó   Prevó   Infos   trailer
s   
startxref
%d
%%%%EOF)r÷   rÚ   rÛ   rú   rÜ   rã   rq   rt   r<   rá   rz   r•   )rK   Znew_root_refZ
start_xrefZnum_entriesrâ   r   r   r   Úwrite_xref_and_trailerÙ  s(    




ÿþÿz PdfParser.write_xref_and_trailerc                 O   sL   t |tƒr| j| }d|kr(tdƒ|d< d|kr:| j|d< | j|f|ž|ŽS )Nrõ   ó   Pagerü   )rx   r¨   rÞ   rw   rà   rú   )rK   ÚrefÚobjsÚdict_objr   r   r   rý   í  s    


zPdfParser.write_pagec                 O   sÄ   | j }|d kr|  | ¡ ¡}n| ¡ |jf| j|j< | tt|Ž ƒ¡ | 	dd ¡}|d k	rft
|ƒ|d< |rx| t|ƒ¡ |D ]}| t|ƒ¡ q||d k	r¶| d¡ | |¡ | d¡ | d¡ |S )NÚstreamr½   s   stream
s   
endstream
s   endobj
)rt   rø   rp   rR   rã   rQ   rq   rz   rY   rs   r<   r“   )rK   r  r  r  rt   r	  Úobjr   r   r   rú   ö  s$    



zPdfParser.write_objc                 C   s.   | j d krd S | j| j j= | j| jd j= d S )Nrö   )rÚ   rã   rQ   rÙ   rJ   r   r   r   r÷     s    
zPdfParser.del_rootc                 C   sX   t | dƒr|  ¡ S t | dƒr$|  ¡ S ztj|  ¡ dtjd�W S  tk
rR   Y dS X d S )NÚ	getbufferÚgetvaluer   )Úaccessr¶   )rÔ   r  r  ÚmmapÚfilenoZACCESS_READÚ
ValueError)rt   r   r   r   rÓ     s    

zPdfParser.get_buf_from_filec                 C   sü   t | jƒ| _| j| j | _|  ¡  | jd | _| j dd ¡| _	t
|  | j¡ƒ| _| j	d krdt
ƒ | _nt
|  | j	¡ƒ| _td| jkdƒ t| jd dkdƒ td| jkdƒ tt| jd tƒd	ƒ | jd | _|  | j¡| _|  | j¡| _| jd d … | _d S )
Nr   r  ó   Typez/Type missing in Rootrô   z/Type in Root is not /Catalogrö   z/Pages missing in Rootz+/Pages in Root is not an indirect reference)r<   rº   r×   rÏ   rØ   Úread_trailerrâ   rÚ   r7   rÜ   r•   Úread_indirectrÙ   rÛ   rH   rx   rI   rà   rÝ   Úlinearize_page_treerÞ   rß   rJ   r   r   r   rÖ     s.    

 ÿþzPdfParser.read_pdf_infoc                 C   sX   zt t| j ¡ ƒd dƒ}W n tk
r:   t ddƒ}Y nX |d k	rT|df| j|j< |S )Nrg   r   )rI   Úmaxrã   rm   r  rQ   )rK   r¯   Ú	referencer   r   r   rø   9  s    zPdfParser.next_object_ids   [][()<>{}/%]s$   [][()<>{}/%\000\011\012\014\015\040]s   [\000\011\012\014\015\040]s#   [\000\011\012\014\015\0400-9a-fA-F]ó   *ó   +s   [\000\011\014\040]*s   [\r\n]+s   trailers   \<\<(.*\>\>)s	   startxrefs   ([0-9]+)s   %%EOFó   $s   \<\<(.*?\>\>)c                 C   sÀ   t | jƒd }|| jk r| j}| j | j|¡}t|dƒ |}|r^|}| j | j| ¡ d ¡}q<|sf|}| d¡}t| d¡ƒ| _	|  
|¡| _tƒ | _| j| j	d� d| jkr¼|  | jd ¡ d S )Né @  ztrailer end not foundé   rg   rš   ©Úxref_section_offsetr  )r<   rº   rÏ   Úre_trailer_endÚsearchrH   ÚstartÚgroupr¨   rá   Úinterpret_trailerrâ   rZ   rã   Úread_xref_tableÚread_prev_trailer)rK   Zsearch_start_offsetÚmZ
last_matchÚtrailer_datar   r   r   r  k  s$    



zPdfParser.read_trailerc                 C   sv   | j |d�}| j | j||d … ¡}t|dƒ | d¡}tt| d¡ƒ|kdƒ |  |¡}d|krr|  |d ¡ d S )Nr  r  zprevious trailer not foundrg   rš   zGxref section offset in previous trailer doesn't match what was expectedr  )	r#  Úre_trailer_prevr  rº   rH   r!  r¨   r"  r$  )rK   r  Ztrailer_offsetr%  r&  râ   r   r   r   r$  €  s    ÿ

þ
zPdfParser.read_prev_trailers   /([!-$&'*-.0-;=?-Z\\^-z|~]+)(?=rÂ   s   \<\<s   \>\>c                 C   s¾   i }d}| j  ||¡}|sT| j ||¡}t|o<| ¡ t|ƒkdt||d … ƒ ƒ q‚|  | d¡¡}|  	|| ¡ ¡\}}|||< qtd|ko˜t
|d tƒdƒ td|ko´t
|d tƒdƒ |S )Nr   z+name not found in trailer, remaining data: rg   r  z&/Size not in trailer or not an integerr   z1/Root not in trailer or not an indirect reference)Úre_nameÚmatchÚre_dict_endrH   Úendr<   r}   r€   r!  Ú	get_valuerx   r¨   rI   )r�   r&  Útrailerr¯   r%  ra   rb   r   r   r   r"  ™  s0    ÿþ
þþzPdfParser.interpret_trailers   ([^#]*)(#([0-9a-fA-F]{2}))?Fc                 C   sn   d}| j  |¡D ]B}| d¡rD|| d¡t | d¡ d¡¡ 7 }q|| d¡7 }q|rb| d¡S t|ƒS d S )Nr¶   é   rg   rN   zutf-8)Úre_hashes_in_nameÚfinditerr!  rŠ   Úfromhexr=   rz   )r�   ÚrawZas_textry   r%  r   r   r   r€   ¶  s    
&
zPdfParser.interpret_names   null(?=s   true(?=s   false(?=s   ([-+]?[0-9]+)(?=s)   ([-+]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+))(?=s   \[ó   ]s   \<(s   *)\>rÅ   s   ([-+]?[0-9]+)s   R(?=s   obj(?=s	   endobj(?=rÄ   s	   %[^\r\n]*s   )*s   stream\r?\ns   endstream(?=r¤   c              
   C   sà  |dkrdS | j  ||¡}|r&| ¡ }| j ||¡}|rètt| d¡ƒdkdƒ tt| d¡ƒdkdƒ t|d kp’|tt| d¡ƒt| d¡ƒƒkdƒ | j|| ¡ |d d�\}}|d krÄ|d fS | j	 ||¡}t|d	ƒ || ¡ fS t| d
ƒ | j
 ||¡}|�r^tt| d¡ƒdkdƒ tt| d¡ƒdkdƒ tt| d¡ƒt| d¡ƒƒ| ¡ fS | j ||¡}|�rÎ| ¡ }i }| j ||¡}|�s | j|||d d�\}}|d k�r¼|d fS | j|||d d�\}	}|	||< |d k�rî|d fS | j ||¡}�qŒ| ¡ }| j ||¡}|�r¾zt|d ƒ}
W n@ tttfk
�rl } ztd| dd ¡ ƒ|‚W 5 d }~X Y nX || ¡ | ¡ |
 … }| j || ¡ |
 ¡}t|dƒ | ¡ }tt|ƒ|ƒ}nt|ƒ}||fS | j ||¡}|�rT| ¡ }g }| j ||¡}|�sH| j|||d d�\}	}| |	¡ |d k�r6|d fS | j ||¡}�qü|| ¡ fS | j ||¡}|�rtd | ¡ fS | j ||¡}|�r”d| ¡ fS | j ||¡}|�r´d| ¡ fS | j ||¡}|�rät|  | d¡¡ƒ| ¡ fS | j ||¡}|�rt| d¡ƒ| ¡ fS | j  ||¡}|�r8t!| d¡ƒ| ¡ fS | j" ||¡}|�rœt#dd„ | d¡D ƒƒ}t$|ƒd dk�r„| t%dƒ¡ t# &| 'd¡¡| ¡ fS | j( ||¡}|�rÀ|  )|| ¡ ¡S tdt*|||d … ƒ ƒ‚d S )Nr   )NNrg   z<indirect object definition: object ID must be greater than 0rš   z;indirect object definition: generation must be non-negativez2indirect object definition different than expected)Úmax_nestingz(indirect object definition end not foundz$indirect object definition not foundz;indirect object reference: object ID must be greater than 0z:indirect object reference: generation must be non-negatives   Lengthz)bad or missing Length in stream dict (%r)zstream end not foundTFc                 s   s   | ]}|d kr|V  qdS )s   0123456789abcdefABCDEFNr   r·   r   r   r   r;   a  s     z&PdfParser.get_value.<locals>.<genexpr>ó   0rN   zunrecognized object: é    )+Ú
re_commentr)  r+  Úre_indirect_def_startrH   r¨   r!  rI   r,  Úre_indirect_def_endÚre_indirect_referenceÚre_dict_startr*  Úre_stream_startÚ	TypeErrorrd   r  rA   r7   Úre_stream_endr¸   r•   Úre_array_startÚre_array_endrŒ   Úre_nullÚre_trueÚre_falser(  rw   r€   Úre_intÚre_realrÆ   Úre_string_hexrŠ   r<   r†   r1  r=   Úre_string_litÚget_literal_stringr}   )r�   r‚   r¯   Úexpect_indirectr4  r%  ÚobjectrŽ   ra   rb   Z
stream_lenr®   Zstream_dataZ
hex_stringr   r   r   r,  ô  sî    þþÿü
 ÿþþ&


ÿÿý


ÿzPdfParser.get_valuesF   (\\[nrtbf()\\])|(\\[0-9]{1,3})|(\\(\r\n|\r|\n))|(\r\n|\r|\n)|(\()|(\))ó   nr²   ó   ró   ó   tó   	ó   bó   ó   fó   rÃ   c                 C   s  d}t ƒ }| j ||¡D ]ê}| ||| ¡ … ¡ | d¡rX| | j| d¡d  ¡ n¢| d¡r‚| t| d¡dd … dƒ¡ nx| d¡rŽnl| d¡r¤| d¡ nV| d¡rÂ| d	¡ |d7 }n8| d
¡rú|dkrèt	|ƒ| 
¡ f  S | d¡ |d8 }| 
¡ }qtdƒ‚d S )Nr   rg   rš   é   r.  é   r²   é   rÄ   é   rÂ   zunfinished literal string)rŠ   Úre_lit_str_tokenr0  r�   r   r!  Úescaped_charsrŒ   r¨   rz   r+  rA   )r�   r‚   r¯   Znesting_depthrŽ   r%  r   r   r   rH  „  s,    

 







zPdfParser.get_literal_strings   xrefs+   ([0-9]{10}) ([0-9]{5}) ([fn])( \r| \n|\r\n)c                 C   s  d}| j  | j|| j ¡}t|dƒ | ¡ }| j | j|¡}|sNt|dƒ �qd}| ¡ }t| d¡ƒ}t| d¡ƒ}t	||| ƒD ]€}| j
 | j|¡}t|dƒ | ¡ }| d¡d	k}t| d¡ƒ}	|s„t| d¡ƒ|	f}
t|| jkpô| j| |
kd
ƒ |
| j|< q„q,|S )NFzxref section start not foundzxref subsection start not foundTrg   rš   zxref entry not foundr.  rR  z)xref entry duplicated (and not identical))Úre_xref_section_startr)  rº   rÏ   rH   r+  Úre_xref_subsection_startr¨   r!  r�   Úre_xref_entryrã   )rK   r  Zsubsection_foundr%  r¯   Zfirst_objectÚnum_objectsrþ   Zis_freerR   Z	new_entryr   r   r   r#  ¨  s@     ÿ
 ÿ
þzPdfParser.read_xref_tablec              
   C   st   | j |d  \}}t||d kd|d › d|d › d|› d|› �ƒ | j| j|| j t|Ž |d�d }|| j|< |S )Nr   rg   zexpected to find generation z for object ID z) in xref table, instead found generation z at offset )rI  r4  )rã   rH   r,  rº   rÏ   rI   rÕ   )rK   r  r4  r¯   rR   rb   r   r   r   r  É  s    
"þüû
zPdfParser.read_indirectc                 C   sj   |d kr| j }t|d dkdƒ g }|d D ]8}|  |¡}|d dkrR| |¡ q,| | j|d�¡ q,|S )Nr  rö   z%/Type of page tree node is not /Pagess   Kidsr  )Únode)rÝ   rH   r  rŒ   r�   r  )rK   r^  rÞ   ZkidZ
kid_objectr   r   r   r  Ù  s    
 ÿ
zPdfParser.linearize_page_tree)NNNr   rÌ   )N)N)F)Nr¤   )r¤   )N)IrB   rC   rD   rE   r_   ræ   rë   rí   rì   rç   rä   rñ   ró   rû   rù   r  rý   rú   r÷   ÚstaticmethodrÓ   rÖ   rø   Ú	delimiterZdelimiter_or_wsÚ
whitespaceZwhitespace_or_hexZwhitespace_optionalZwhitespace_mandatoryZwhitespace_optional_no_nlZnewline_onlyÚnewlineÚreÚcompileÚDOTALLr  r'  r  r$  Zre_whitespace_optionalr(  r;  r*  r�   r"  r/  r€   rA  rB  rC  rD  rE  r?  r@  rF  rG  r:  r8  r9  r7  r<  r>  r,  rX  r†   rY  rH  rZ  r[  r\  r#  r  r  r   r   r   r   r   a  sº  
%
	


ÿþýüûúùø	÷
öõóÿþýüûúùø	÷
öô
ÿþýÿ

ÿÿþýÿÿÿþýüûúùÿ
ÿþýüûúùÿ
ÿÿÿyÿ                ð
ÿþýüûÿ
!
r   )r¬   r   r–   r  rï   rc  r©   r¾   r	   r6   r@   rÍ   rA   rH   Ú
namedtuplerI   rY   rZ   rw   rÊ   r‘   r—   r•   rµ   r¸   r“   r   r   r   r   r   Ú<module>   s‚   ×-
ÿ['0