a
    w=ic7                     @   s  d Z ddlmZ ddlmZmZmZ dZeeZdZ	de	 dZ
de
 d	Zde d
Zde dZee
ZeeZeeZeeZdZg dZg d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!G dd de"Z#G dd dZ$e%dkrddl&Z&e$e&j'd Z(e)d*dd de(j+ de(j, de(j- de(j. d e(j/ d!e(j0 d"e(j1 d#e(j2 d$e(j3 d%e(j4 d&e(j5 d'e(j6 d(e(j7 d)e(j8 fD  e)e( dS )*u1  Module for reading TFM (TeX Font Metrics) files.

The TFM format is described in the TFtoPL WEB source code, whose typeset form
can be found on `CTAN <http://mirrors.ctan.org/info/knuth-pdf/texware/tftopl.pdf>`_.

	>>> from fontTools.tfmLib import TFM
	>>> tfm = TFM("Tests/tfmLib/data/cmr10.tfm")
	>>>
	>>> # Accessing an attribute gets you metadata.
	>>> tfm.checksum
	1274110073
	>>> tfm.designsize
	10.0
	>>> tfm.codingscheme
	'TeX text'
	>>> tfm.family
	'CMR'
	>>> tfm.seven_bit_safe_flag
	False
	>>> tfm.face
	234
	>>> tfm.extraheader
	{}
	>>> tfm.fontdimens
	{'SLANT': 0.0, 'SPACE': 0.33333396911621094, 'STRETCH': 0.16666698455810547, 'SHRINK': 0.11111164093017578, 'XHEIGHT': 0.4305553436279297, 'QUAD': 1.0000028610229492, 'EXTRASPACE': 0.11111164093017578}
	>>> # Accessing a character gets you its metrics.
	>>> # “width” is always available, other metrics are available only when
	>>> # applicable. All values are relative to “designsize”.
	>>> tfm.chars[ord("g")]
	{'width': 0.5000019073486328, 'height': 0.4305553436279297, 'depth': 0.1944446563720703, 'italic': 0.013888359069824219}
	>>> # Kerning and ligature can be accessed as well.
	>>> tfm.kerning[ord("c")]
	{104: -0.02777862548828125, 107: -0.02777862548828125}
	>>> tfm.ligatures[ord("f")]
	{105: ('LIG', 12), 102: ('LIG', 11), 108: ('LIG', 13)}
    )SimpleNamespace)calcsizeunpackunpack2a  
    >
    lf: h    # length of the entire file, in words
    lh: h    # length of the header data, in words
    bc: h    # smallest character code in the font
    ec: h    # largest character code in the font
    nw: h    # number of words in the width table
    nh: h    # number of words in the height table
    nd: h    # number of words in the depth table
    ni: h    # number of words in the italic correction table
    nl: h    # number of words in the ligature/kern table
    nk: h    # number of words in the kern table
    ne: h    # number of words in the extensible character table
    np: h    # number of font parameter words
z12.20Fz;
    >
    checksum:            L
    designsize:          
z
    z
    codingscheme:        40p
z
    family:              20p
zm
    seven_bit_safe_flag: ?
    ignored:             x
    ignored:             x
    face:                B
zI
    >
    skip_byte: B
    next_char: B
    op_byte: B
    remainder: B
)ZSLANTSPACEZSTRETCHZSHRINKZXHEIGHTZQUADZ
EXTRASPACE)ZNUM1ZNUM2ZNUM3ZDENOM1ZDENOM2ZSUP1ZSUP2ZSUP3ZSUB1ZSUB2ZSUPDROPZSUBDROPZDELIM1ZDELIM2Z
AXISHEIGHT)ZDEFAULTRULETHICKNESSZBIGOPSPACING1ZBIGOPSPACING2ZBIGOPSPACING3ZBIGOPSPACING4ZBIGOPSPACING5            c                       s   e Zd Z fddZ  ZS )TFMExceptionc                    s   t  | d S N)super__init__)selfmessage	__class__ a/home/droni/.local/share/virtualenvs/DPS-5Je3_V2c/lib/python3.9/site-packages/fontTools/tfmLib.pyr      s    zTFMException.__init__)__name__
__module____qualname__r   __classcell__r   r   r   r   r      s   r   c                   @   s$   e Zd Zdd Zdd Zdd ZdS )TFMc                 C   s   |  | d S r   )_read)r   filer   r   r   r      s    zTFM.__init__c                 C   s    d| j  d| j d| jddS )Nz	<TFM for z in z at gzpt>)familycodingscheme
designsize)r   r   r   r   __repr__   s    zTFM.__repr__c                    sj  t |dr| n2t|d}| W d    n1 s<0    Y  | _ttk r`tdt tt	 j
dk rtdtj
d k rtdt D ]\}}|dk rtdqjd	k rtd
j djjd ksjdkrtdj dj djdksFjdksFjdksFjdkrNtdjdkrjtdt dj
dj jj d  j j j j j j j j krtddj j   j d j j j j j 

j j  fddfddfdd}fddfdd fd!d"	fd#d$}fd%d&fd'd(}fd)d*}fd+d,}		fd-d.}
fd/d0}fd1d2}fd3d4}
fd5d6}fd7d8}dXfd9d:	ttdgt |  d;}jd }i | _|tkrtt|d  | d }| jd<k r| jd	 }| jd	 }d=|d>  d?|  d@|d>   | _tjtd  D ]$}tdA|d<  dB|| jd }qn^|tkrtt|d  |  n>|t kr(tt!|d  |  n|t"krFtt#|d  |  t$| _%| j&' }|(dCrjt)| _%n|(dDr|t*| _%i | _+tjD ]}dE|d  }|dkrt,| }nF| j%t)kr|dFkrt-|dG  }n"| j%t*kr|dHkrt.|dG  }|||| j+ qi }d | _/d | _0jdkr||d}|j1dkrJ|j2| _/||jd }|j1dkrd| _0d|j3 |j4 }||| j0< i | _5tjjd D ]X}|dkri  | j5|< }|||dI< |dkr|||dJ< |dkr|	||dK< 	|dkr|
||dL< ||}|t6kr0n|t7krH|||< n|t8kr`||dM< n|t9kri  |dN< }tdD ]x}|||  }|d>ks|dkr~dO}|dkrdP}n|dkrdQ}n|d	krdR}||r|||< n|||< q~qi | _:i | _;t<| D ]N\}}|||}|j1t=krFd|j3 |j4 }|jk r|||}|j1t=krln|j3t>krd|j3t>  |j4 }||| j;?|i |j2< n|j3}|dks|dGkr|dSkr|}nVdT}|d dkr|dU7 }|dV7 }|d	 dkr|dU7 }|d>kr&|dW7 }|d8 }q||j4f| j:?|i |j2< |j1t=krPq||j1d 7 }qFqd S )YNreadrbzToo short input filer   z0The file claims to have negative or zero length!   z(The file has fewer bytes than it claims!z'The subfile size: '{name}' is negative!r	   zThe header length is only !r      zThe character code range z..z is illegal!z-Incomplete subfiles for character dimensions!   z
There are z extensible recipes!   u0   Subfile sizes don’t add up to the stated totalc                    s   d |   S Nr$   r   c)	char_baser   r   	char_info   s    zTFM._read.<locals>.char_infoc                    s    |  S r   r   r*   r-   datar   r   width_index   s    zTFM._read.<locals>.width_indexc                    s    |  j k p|  jkp| dkS )Nr   )bcecr*   )sizesr0   r   r   noneexistent   s    zTFM._read.<locals>.noneexistentc                    s    | d  d S Nr      r   r*   r.   r   r   height_index   s    zTFM._read.<locals>.height_indexc                    s    | d  d S r5   r   r*   r.   r   r   depth_index   s    zTFM._read.<locals>.depth_indexc                    s    | d  d S Nr	   r$   r   r*   r.   r   r   italic_index  s    zTFM._read.<locals>.italic_indexc                    s    | d  d S r9   r   r*   r.   r   r   tag  s    zTFM._read.<locals>.tagc                    s    | d  S )Nr
   r   r*   r.   r   r   	remainder	  s    zTFM._read.<locals>.remainderc                    s   d|   } |dd S Nr$   vr   r+   r)
read_fixed
width_baser0   r   r   width  s    zTFM._read.<locals>.widthc                    s   d |   }|dd S r=   r   r?   )height_baser7   rA   r   r   height  s    zTFM._read.<locals>.heightc                    s   d |   }|dd S r=   r   r?   )
depth_baser8   rA   r   r   depth  s    zTFM._read.<locals>.depthc                    s   d |   }|dd S r=   r   r?   )italic_baser:   rA   r   r   italic  s    zTFM._read.<locals>.italicc                    s   d |   S r)   r   r*   )
exten_baser<   r   r   exten  s    zTFM._read.<locals>.extenc                    s   d |   S r)   r   i)lig_kern_baser   r   lig_step  s    zTFM._read.<locals>.lig_stepc                    s   t  }tt | d  | |S r   )r   r   LIG_KERN_COMMAND)rM   commandr/   r   r   lig_kern_command"  s    z#TFM._read.<locals>.lig_kern_commandc                    s   d |   }|dd S r=   r   )rM   r@   )	kern_baserA   r   r   kern'  s    zTFM._read.<locals>.kernc                    s   d |   S r)   r   rL   )
param_baser   r   param+  s    zTFM._read.<locals>.paramc                    s(   t d| dt  | d  |}|d S )Nz>;:r   )r   FIXED_FORMAT)indexkeyobjretrR   r   r   rA   .  s     zTFM._read.<locals>.read_fixed      ZMBLr
   ZRIZRCEz>;HEADERz:lzTEX MATH SYzTEX MATH EXZ	PARAMETER         rC   rE   rG   rI   Z
nextlargervarcharreptopmidZbot    /ZLIG>)N)@hasattrr"   open_datalen
SIZES_SIZEr   r   r   SIZES_FORMATlfvarsitemsZlhr1   r2   nwZnhndninenlnknpr   HEADER_FORMAT4HEADER_SIZE4extraheaderfacerangeHEADER_SIZE3HEADER_FORMAT3HEADER_SIZE2HEADER_FORMAT2HEADER_SIZE1HEADER_FORMAT1VANILLAfonttyper   upper
startswithMATHSYMATHEX
fontdimensBASE_PARAMSMATHSY_PARAMSMATHEX_PARAMSright_boundary_charleft_boundary_charZ	skip_byteZ	next_charZop_byter<   charsNO_TAGLIG_TAGLIST_TAGEXT_TAG	ligatureskerningsorted	STOP_FLAG	KERN_FLAG
setdefault)r   r   fpnamelengthr4   r;   rC   rE   rG   rI   rK   rO   rS   rU   rW   offsetrestsbrM   schemeZlig_kern_mapcmdr@   r+   infoZchar_tagrc   partZligr   )r,   r-   r/   rF   r8   rJ   rD   r7   rH   r:   rT   rN   rV   rA   r<   r3   rB   r0   r   r      sv   

&


0	











"$
















z	TFM._readN)r   r   r   r   r!   r   r   r   r   r   r      s   r   __main__Nc                 c   s   | ]
}|V  qd S r   r   ).0xr   r   r   	<genexpr>  s   r   ztfm.checksum=ztfm.designsize=ztfm.codingscheme=ztfm.fonttype=ztfm.family=ztfm.seven_bit_safe_flag=z	tfm.face=ztfm.extraheader=ztfm.fontdimens=ztfm.right_boundary_char=ztfm.left_boundary_char=ztfm.kerning=ztfm.ligatures=z
tfm.chars=)9__doc__typesr   ZfontTools.misc.sstructr   r   r   rp   ro   rY   r   r   r   r{   r   r   r   r|   rP   r   r   r   r   r   r   ZUNREACHABLEZPASSTHROUGHZ
ACCESSABLEr   r   r   r   r   r   	Exceptionr   r   r   sysargvZtfmprintjoinchecksumr    r   r   r   Zseven_bit_safe_flagr~   r}   r   r   r   r   r   r   r   r   r   r   <module>   s   %
	  


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


