
    #j,                        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$e!eez  e"z  e%z  e'z  f         Z( G d d           Z) G d! d"          Z*dS )#    N)Iterable)calcsizepackunpack)BinaryIOClassVarcast)PDFValueError))>Lnumber)>Bflags)r   retention_flags)r   
page_assoc)r   data_length   @   ?      i   l    &   1   3   s   JB2

   bit_posvaluereturnc                 ,    t          || z	  dz            S )Nr   bool)r   r   s     V/home/rurouni/.hermes/hermes-agent/venv/lib/python3.11/site-packages/pdfminer/jbig2.pybit_setr"   (   s    '!Q&'''    flagc                 &    t          | |z            S Nr   )r$   r   s     r!   
check_flagr'   ,   s    ur#   maskc                 x    t          d          D ]}t          ||           r
|| z  |z	  c S t          d          N   zInvalid mask or valueranger"   r
   r(   r   r   s      r!   masked_valuer/   0   sT    99 - -7D!! 	-DLW,,,,	- /
0
00r#   c                 ~    t          d          D ]}t          ||           r|| |z	  z  |z  c S  t          d          r*   r,   r.   s      r!   
mask_valuer1   8   sY    99 : :7D!! 	:TW_-'9999	: /
0
00r#   formatbufferc                 r    | dv sJ t          t          t                   t          | |                    \  }|S )N>   r   >Ir   )r	   tupleintr   )r2   r3   results      r!   
unpack_intr9   @   s8    '''''E#Jvv 6 67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dS )JBIG2StreamReaderz&Read segments from a JBIG2 byte streamstreamr   Nc                     || _         d S r&   r<   selfr<   s     r!   __init__zJBIG2StreamReader.__init__Q       r#   c                    g }|                                  si }t          D ]\  }}t          |          }| j                            |          }t          |          |k     rd|d<    nFt          ||          }t          | d| d           }t          |          r ||||          }|||<   |	                    d          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2	((33u::	))(,GH%E"<77 ==F## :"F7E599E %;;x(( )((( ++-- 	)  r#   c                     | j                             d          dk    rdS | j                             dt          j                   dS )Nr   r#   TF)r<   rH   seekosSEEK_CUR)r@   s    r!   rF   zJBIG2StreamReader.is_eofh   sA    ;A#%%4KR---5r#   rO   r   rS   c                     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M 66
 
 	
r#   c                 ~   t          t          |          }g }g }|t          k     r6t          d          D ]%}|                    t          ||                     &n|| j                            d          z  }t          d|          }t          t          |          }t          j        |dz   dz            }t          |          D ]_}	t          d| j                            d                    }
t          d          D ]%}|                    t          ||
                     &`|d         }t          |t                    sJ |d	k    rd}n|d
k    rd}nd}t          |          }t          |          D ]A}| j                            |          }t          ||          }|                    |           B|||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==	~%% 88 @ @&&ww'>'>????@ T[%%a(((E"4//I$%8)DDI"iQ!(;<<O#(#9#9 G G%dDK,<,<Q,?,?@@$Qxx G GG#**77H+E+EFFFFG (#'3'''''c>>JJJJJJ''	** 	% 	%J{''11HZ22C$$$$ #.(
 
 	
r#   pagec                     t          t          |d                   d         r-|| 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   sN    !77#3445FG 	+T[%%a(((EdE**Dr#   lengthc                     |rat          t          |d                   d         t          k    r|t          k    rt	          d          | 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   ss      		?&(899&A01 1---)P   '+k&6&6v&>&>
#r#   )__name__
__module____qualname____doc__r   rA   listJBIG2SegmentrU   r    rF   r7   bytesr~   rb   JBIG2RetentionFlagsr{   r   r    r#   r!   r;   r;   N   sW       0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dS )JBIG2StreamWriterz.Write JBIG2 segments to a file in JBIG2 formatr   )ri   rk   rj   EMPTY_RETENTION_FLAGSr<   r   Nc                     || _         d S r&   r>   r?   s     r!   rA   zJBIG2StreamWriter.__init__   rB   r#   TrN   fix_last_pagec                 P   d}d }d }|D ]}|                      |          }| j                            |           |t          |          z  }t	          t
          d z  |d                   }|rYt	          t
          |                    d                    }t	          t          |d                   d         t          k    rd }|r|}|r^|r\|Z| 	                    |dz   |          }|                      |          }| 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Kd###D		!H3:wx'899G 	,W[[%>%>?? *GG,<==fE+, , $(LL ,#+L 	"\ 	"w/B**7Q;EEG&&w//DKd###D		!Hr#   c                    t           }t          }|t          d|          z  }t          dd          }||z  }| j                            |           t          |          }||                     ||          z  }d}|D ]}t          t          |d                   }|rdnd}	| 	                    ||	z             }
| 
                    |
          }| j                            |           |t          |          z  }|S )Nr   r   r   r   r      )FILE_HEADER_IDFILE_HEAD_FLAG_SEQUENTIALr   r<   r   rI   r   r	   r7   get_eof_segmentr   )r@   rN   r   headerheader_flagsnumber_of_pagesr   ru   rO   seg_num_offseteof_segmentr   s               r!   
write_filezJBIG2StreamWriter.write_file   s   
  0$t\*** tQ--/!&!!!v;;D''-@@@ 	3 	3G3 122GG+2**7^+CDD"";//$CIIr#   rO   c                     d}t           D ]_\  }}|                    |          }t          | d| d           }t          |          r |||          }nt	          ||          }||z  }`|S )Nr#   encode_)rG   rL   rJ   rK   r   )r@   rO   r   rP   rQ   r   encoderrS   s           r!   r   z JBIG2StreamWriter.encode_segment  s    ", 	 	L$KK%%Ed$4d$4$4d;;G   2w//\511EMDDr#   r   c                 D   d}|                     d          r
|t          z  }d|v r||d         rt          n|z  }n9|t          t          |                     dd                    dk    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W00RWWEEW[[3344s:: ,+E 	M5=999D%   r#   c                    g }d}|d         }t          |t                    sJ t          t          t                   |                    dg                     }|dk    rJt          t          |          }t          |          D ]\  }}	|	r|d|z  z  }|	                    |           nt          j        |dz   dz            }
dd|
z  z   }t          t          t                    d	z  }|	                    |           t          |
          D ]M}d
}||dz  |dz  dz            }t          |          D ]\  }}||rd|z  n|z  }|	                    |           Nt          t          t                   |                    dg                     }t          t          |d                   }|dk    rd}n|dk    rd}nd}|D ]}||z  }|	                    |           t          |g|R  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+KLL>>#$8)DDJ)2?)C)C 1 1%	: 1!y.0JLL$$$$)Y]a$788K3#45L$%9>JJbPKLL%%%#K00 ' '
*:>JNQ<N+NO(1((;(; F F$GW EWXEHHX&&&&DIuyy'D'DEEsGH-..c>>JJJJJ 	 	CJ&LLLL)5))))r#   c                 b    t          d|          }|t          t          |d                   z  }|S )Nr   r   )r   r	   r   )r@   r   rO   r   s       r!   encode_data_lengthz$JBIG2StreamWriter.encode_data_length\  s/    D%  UGJ/000r#   
seg_numberpage_numberc                 8    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F %0F
 
 	
r#   c                 8    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F 0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8 T#Y++4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      sn    				 $ $ $ $ $ $ ) ) ) ) ) ) ) ) ) ) + + + + + + + + + + 0 0 0 0 0 0  
 " ( !     !#    5& (S ( ( ( ( ( (S      1s 13 13 1 1 1 11S 1 1 1 1 1 1s E c     cDj) 3d3i$t* <<= 3J**-@@Bq q q q q q q qhq
 q
 q
 q
 q
 q
 q
 q
 q
 q
r#   