
    +Si,                     x   d dl Z d dlZd dlmZ d dlmZmZmZ d dlm	Z	m
Z
mZ d dlmZ g dZdZdZd	Zd
ZdZdZdZdZdZdZdZdZdededefdZdededefdZdededefdZdededefdZ de!de"defdZ#e$e!eez  f   Z%e$e!ee&e   z  e&e   z  f   Z'e$e!eez  e"z  e%z  e'z  f   Z( G d d       Z) G d! d"      Z*y)#    N)Iterable)calcsizepackunpack)BinaryIOClassVarcast)PDFValueError))>Lnumber)>Bflags)r   retention_flags)r   
page_assoc)r   data_length   @   ?      i   l    &   1   3   s   JB2

   bit_posvaluereturnc                 $    t        || z	  dz        S )Nr   bool)r   r   s     W/var/www/html/leadgen/airagagent/rag_env/lib/python3.12/site-packages/pdfminer/jbig2.pybit_setr"   (   s    '!Q&''    flagc                     t        | |z        S Nr   )r$   r   s     r!   
check_flagr'   ,   s    ur#   maskc                 d    t        d      D ]  }t        ||       s|| z  |z	  c S  t        d      N   zInvalid mask or valueranger"   r
   r(   r   r   s      r!   masked_valuer/   0   s<    9 -7D!DLW,,- /
00r#   c                 j    t        d      D ]  }t        ||       s|| |z	  z  |z  c S  t        d      r*   r,   r.   s      r!   
mask_valuer1   8   sA    9 :7D!TW_-'99: /
00r#   formatbufferc                 X    | dv sJ t        t        t           t        | |            \  }|S )N>   r   >Ir   )r	   tupleintr   )r2   r3   results      r!   
unpack_intr9   @   s/    ''''E#Jvv 67HVMr#   c                       e Zd ZdZdeddfdZdee   fdZde	fdZ
ded	ed
edefdZded	ed
edefdZdeded
edefdZdeded
edefdZy)JBIG2StreamReaderz&Read segments from a JBIG2 byte streamstreamr   Nc                     || _         y r&   r<   selfr<   s     r!   __init__zJBIG2StreamReader.__init__Q   	    r#   c                    g }| j                         si }t        D ]v  \  }}t        |      }| j                  j	                  |      }t        |      |k  rd|d<    n8t        ||      }t        | d| d       }t        |      r
 ||||      }|||<   x |j                  d      s|j                  |       | j                         s|S )NT_errorparse_)is_eof
SEG_STRUCTr   r<   readlenr9   getattrcallablegetappend)	r@   segmentssegmentfield_formatname	field_lenfieldr   parsers	            r!   get_segmentszJBIG2StreamReader.get_segmentsT   s    ')++-$&G&0 
&"d$\2	((3u:	)(,GH%"<7 v=F#"7E59E %
& ;;x(( ++-  r#   c                     | j                   j                  d      dk(  ry| j                   j                  dt        j                         y)Nr   r#   TF)r<   rH   seekosSEEK_CUR)r@   s    r!   rF   zJBIG2StreamReader.is_eofh   s7    ;;A#%KKR-r#   rO   r   rS   c                 b    t        t        |      t        t        |      t        t        |      dS )N)deferredpage_assoc_longtype)r'   HEADER_FLAG_DEFERREDHEADER_FLAG_PAGE_ASSOC_LONGr/   SEG_TYPE_MASK)r@   rO   r   rS   s       r!   parse_flagszJBIG2StreamReader.parse_flagso   s.     ##7?)*EuM 6
 	
r#   c                    t        t        |      }g }g }|t        k  r,t        d      D ]  }|j	                  t        ||              n|| j                  j                  d      z  }t        d|      }t        t        |      }t        j                  |dz   dz        }t        |      D ]R  }	t        d| j                  j                  d            }
t        d      D ]  }|j	                  t        ||
              T |d   }t        |t              sJ |d	k  rd}n
|d
k  rd}nd}t        |      }t        |      D ]:  }| j                  j                  |      }t        ||      }|j	                  |       < |||dS )N      r   r      r   r   r         r5   )	ref_countretain_segmentsref_segments)r/   REF_COUNT_SHORT_MASKREF_COUNT_LONGr-   rM   r"   r<   rH   r9   REF_COUNT_LONG_MASKmathceil
isinstancer7   r   )r@   rO   r   rS   ri   rj   rk   r   ret_bytes_count_ret_byte_indexret_byteseg_num
ref_formatref_size
_ref_indexref_datarefs                    r!   parse_retention_flagsz'JBIG2StreamReader.parse_retention_flags{   s    !!5u=	~% 8 @&&ww'>?@ T[[%%a((E"4/I$%8)DI"iiQ!(;<O#(#9 G%dDKK,<,<Q,?@$Qx GG#**77H+EFGG
 (#'3'''c>JJJJ'	* 	%J{{''1HZ2C$	% #.(
 	
r#   pagec                     t        t        |d         d   r*|| j                  j                  d      z  }t	        d|      }|S )Nr   r]   re   r   )r	   JBIG2SegmentFlagsr<   rH   r9   )r@   rO   r|   rS   s       r!   parse_page_assocz"JBIG2StreamReader.parse_page_assoc   sB    !77#345FGT[[%%a((EdE*Dr#   lengthc                     |rOt        t        |d         d   t        k(  r|t        k(  rt	        d      | j
                  j                  |      |d<   |S )Nr   r^   z:Working with unknown segment length is not implemented yetraw_data)r	   r~   SEG_TYPE_IMMEDIATE_GEN_REGIONDATA_LEN_UNKNOWNNotImplementedErrorr<   rH   )r@   rO   r   rS   s       r!   parse_data_lengthz#JBIG2StreamReader.parse_data_length   s]     &(89&A01--)P  '+kk&6&6v&>
#r#   )__name__
__module____qualname____doc__r   rA   listJBIG2SegmentrU   r    rF   r7   bytesr~   rb   JBIG2RetentionFlagsr{   r   r    r#   r!   r;   r;   N   s    0x D d<0 ( 



 

 	


 


+
+
 +
 	+

 
+
Z C  RU   	
 
r#   r;   c                      e Zd ZU dZd eee   g        eee   g       dZe	e
   ed<   deddfdZ	 dd	ee   d
edefdZ	 dd	ee   d
edefdZdedefdZdededefdZde
dedefdZdededefdZdededefdZdedefdZy)JBIG2StreamWriterz.Write JBIG2 segments to a file in JBIG2 formatr   )ri   rk   rj   EMPTY_RETENTION_FLAGSr<   r   Nc                     || _         y r&   r>   r?   s     r!   rA   zJBIG2StreamWriter.__init__   rB   r#   rN   fix_last_pagec                    d}d }d }|D ]  }| j                  |      }| j                  j                  |       |t        |      z  }t	        t
        d z  |d         }|sVt	        t
        |j                  d            }t	        t        |d         d   t        k(  rd }|s|} |rS|rQ|O| j                  |dz   |      }| j                  |      }| j                  j                  |       |t        |      z  }|S )Nr   r   r   r   r^   r   )
encode_segmentr<   writerI   r	   r7   rL   r~   SEG_TYPE_END_OF_PAGEget_eop_segment)	r@   rN   r   data_lencurrent_pageru   rO   dataseg_pages	            r!   write_segmentsz JBIG2StreamWriter.write_segments   s   
 #'" 	,G&&w/DKKd#D	!H3:wx'89GW[[%>? *GG,<=fE+, $(L#+L!	,$ \w/B**7Q;EG&&w/DKKd#D	!Hr#   c                    t         }t        }|t        d|      z  }t        dd      }||z  }| j                  j	                  |       t        |      }|| j                  ||      z  }d}|D ]  }t        t        |d         } |rdnd}	| j                  ||	z         }
| j                  |
      }| j                  j	                  |       |t        |      z  }|S )Nr   r   r   r   r      )FILE_HEADER_IDFILE_HEAD_FLAG_SEQUENTIALr   r<   r   rI   r   r	   r7   get_eof_segmentr   )r@   rN   r   headerheader_flagsnumber_of_pagesr   ru   rO   seg_num_offseteof_segmentr   s               r!   
write_filezJBIG2StreamWriter.write_file   s    
  0$t\** tQ-/!&!v;D''-@@ 	3G3 12G	3 ,**7^+CD"";/$CIr#   rO   c                     d}t         D ]L  \  }}|j                  |      }t        | d| d       }t        |      r
 |||      }nt	        ||      }||z  }N |S )Nr#   encode_)rG   rL   rJ   rK   r   )r@   rO   r   rP   rQ   r   encoderrS   s           r!   r   z JBIG2StreamWriter.encode_segment  sn    ", 	L$KK%EdgdV$4d;G w/\51EMD	 r#   r   c                    d}|j                  d      r	|t        z  }d|v r||d   rt        n|z  }n.|t        t        |j                  dd            dkD  rt        n|z  }|t        t        |d         z  }t        d|      S )Nr   r\   r]   r|      r^   r   )rL   r_   r`   r	   r7   r1   ra   r   )r@   r   rO   r   s       r!   encode_flagszJBIG2StreamWriter.encode_flags  s    99Z ))E%E:K4L0RWWEW[[34s: ,E 	M5=99D%  r#   c                 0   g }d}|d   }t        |t              sJ t        t        t           |j                  dg             }|dk  r@t        t        |      }t        |      D ]  \  }}	|	s	|d|z  z  } |j                  |       nt        j                  |dz   dz        }
dd|
z  z   }t        t        t              d	z  }|j                  |       t        |
      D ]B  }d
}||dz  |dz  dz    }t        |      D ]  \  }}||rd|z  n|z  } |j                  |       D t        t        t           |j                  dg             }t        t        |d         }|dk  rd}n
|dk  rd}nd}|D ]  }||z  }|j                  |        t        |g| S )Nr   ri   rj      r   rf   r   B   r   rk   r   rg   rh   IL)rq   r7   r	   r   r    rL   r1   rl   	enumeraterM   ro   rp   rm   r-   r   )r@   r   rO   r   flags_formatri   rj   
flags_byte	ref_index
ref_retainbytes_countflags_dword
byte_indexrt   ret_partr   ret_segrk   ru   rv   rz   s                        r!   encode_retention_flagsz(JBIG2StreamWriter.encode_retention_flags-  s   
 +&	)S)))tDz5995F+KL>#$8)DJ)2?)C 1%	:!y.0J1 LL$))Y]a$78K3#45L$%9>JbPKLL%#K0 '
*:>JNQ<NO(1((; F$GWWXEHF X&' DIuyy'DEsGH-.c>JJJ 	CJ&LLL	 L)5))r#   c                 J    t        d|      }|t        t        |d         z  }|S )Nr   r   )r   r	   r   )r@   r   rO   r   s       r!   encode_data_lengthz$JBIG2StreamWriter.encode_data_length\  s)    D% UGJ/00r#   
seg_numberpage_numberc                 >    ddt         d||dt        j                  dS Nr   F)r\   r^   r#   )r   r   r   r   r   r   )r   r   r   )r@   r   r   s      r!   r   z!JBIG2StreamWriter.get_eop_segmenta  s*    "'1EF %0FF
 	
r#   c                 >    ddt         d|ddt        j                  dS r   )SEG_TYPE_END_OF_FILEr   r   )r@   r   s     r!   r   z!JBIG2StreamWriter.get_eof_segmentk  s*    "'1EF 0FF
 	
r#   )T)r   r   r   r   r	   r   r7   r    r   r   r   __annotations__r   rA   r   r   r   r   r   r   r~   r   r   r   r   r   r   r#   r!   r   r      s<   8 T#Y+T
B/<8$78 x D  #!<(! ! 
	!L #<(  
	<
l 
u 
!"3 !l !u !$-*"-* -* 
	-*^ l u 

# 
C 
L 

# 
, 
r#   r   )+ro   rY   collections.abcr   structr   r   r   typingr   r   r	   pdfminer.pdfexceptionsr
   rG   r_   r`   ra   rl   rn   rm   r   r   r   r   r   r   r7   r    r"   r'   r/   r1   strr   r9   dictr~   r   r   r   r;   r   r   r#   r!   <module>r      sk    	 $ ) ) + + 0
 " ( !     !#    5& (S ( ( (S   1s 13 13 11S 1 1 1s E c  cDj) 3d3i$t* <<= 3J**-@@Bq qhq
 q
r#   