a
    èÝEb¾7  ã                   @   s¾  d Z ddlmZ ddlmZmZmZ dZeeƒZdZ	de	› d�Z
de
› d	�Zde› d
�Zde› d�Zee
ƒZeeƒZeeƒZeeƒ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"ƒZ#G dd„ dƒZ$e%dk�rºddl&Z&e$e&j'd ƒ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 ƒ¡ƒ e)e(ƒ 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.
	>>> # â€œwidthâ€� is always available, other metrics are available only when
	>>> # applicable. All values are relative to â€œdesignsizeâ€�.
	>>> 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)}
é    )ÚSimpleNamespace)ÚcalcsizeÚunpackÚ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:          Ú
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SLANTÚ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BIGOPSPACING5é   é   é   é€   c                       s   e Zd Z‡ fdd„Z‡  ZS )ÚTFMExceptionc                    s   t ƒ  |¡ d S ©N)ÚsuperÚ__init__)ÚselfÚmessage©Ú	__class__© úP/home/ja/django-apps/lartica_env/lib/python3.9/site-packages/fontTools/tfmLib.pyr   š   s    zTFMException.__init__)Ú__name__Ú
__module__Ú__qualname__r   Ú__classcell__r   r   r   r   r   ™   s   r   c                   @   s$   e Zd Zdd„ Zdd„ Zdd„ ZdS )ÚTFMc                 C   s   |   |¡ d S r   )Ú_read)r   Úfiler   r   r   r   Ÿ   s    zTFM.__init__c                 C   s    d| j › d| j› d| jd›d�S )Nz	<TFM for z in z at Úgzpt>)ÚfamilyÚcodingschemeÚ
designsize)r   r   r   r   Ú__repr__¢   s    ÿþýÿzTFM.__repr__c                    sj  t |dƒr| ¡ ‰n2t|dƒ�}| ¡ ‰W d   ƒ n1 s<0    Y  ˆ| _tˆƒtk r`tdƒ‚tƒ ‰tt	ˆˆƒ ˆj
dk r„tdƒ‚tˆƒˆj
d k ržtdƒ‚tˆƒ ¡ D ]\}}|dk rªtdƒ‚qªˆjd	k ràtd
ˆj› d�ƒ‚ˆjˆjd ksüˆjdk�rtdˆj› dˆj› d�ƒ‚ˆjdk�sFˆjdk�sFˆjdk�sFˆjdk�rNtdƒ‚ˆjdk�rjtdt› d�ƒ‚ˆj
dˆj ˆjˆj d  ˆj ˆj ˆj ˆj ˆj ˆj ˆj ˆj k�rÄtdƒ‚dˆj ˆj ‰ ˆ ˆj d ‰ˆˆj ‰ˆˆj ‰ˆˆj ‰ˆˆj ‰ˆˆj ‰
ˆ
ˆj ‰ˆˆj ‰‡ fdd„‰‡‡fdd„‰‡‡fdd„}‡‡fdd„‰‡‡fdd „‰‡‡fd!d"„‰	‡‡fd#d$„}‡‡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 | ƒ d;}ˆjd }i | _|tk�rèttˆ|d … | ƒd }| jd<k �r®| jd	 }| jd	 }d=|d>  d?|  d@|d>   | _tˆjtd  ƒD ]$}tdA|d< › dB�|| jƒd }�qÀn^|tk�rttˆ|d … | ƒ n>|t k�r(tt!ˆ|d … | ƒ n|t"k�rFtt#ˆ|d … | ƒ t$| _%| j& '¡ }| (dC¡�rjt)| _%n| (dD¡�r|t*| _%i | _+tˆjƒD ]€}dE|d › �}|dk�r²t,| }nF| j%t)k�rÖ|dFk�rÖt-|dG  }n"| j%t*k�rø|dHk�røt.|dG  }ˆ||ƒ|| j+ƒ �qŒi }d | _/d | _0ˆjdk�rˆ||dƒƒ}|j1dk�rJ|j2| _/||ˆjd ƒƒ}|j1dk�rˆd| _0d|j3 |j4 }||| j0< i | _5tˆjˆjd ƒD �]X}ˆ|ƒdk�r i  | j5|< }||ƒ|dI< ˆ|ƒdk�rè||ƒ|dJ< ˆ|ƒdk�r|	|ƒ|dK< ˆ	|ƒdk�r|
|ƒ|dL< ||ƒ}|t6k�r0nÈ|t7k�rHˆ|ƒ||< n°|t8k�r`ˆ|ƒ|dM< n˜|t9k�r i  |dN< }tdƒD ]x}ˆ||ƒ|  }|d>k�s¦|dk�r~dO}|dk�rºdP}n|dk�rÊdQ}n|d	k�rØdR}||ƒ�rì|||< n|||< �q~�q i | _:i | _;t<| ¡ ƒD �]N\}}|||ƒƒ}|j1t=k�rFd|j3 |j4 }|ˆjk �r|||ƒƒ}|j1t=k�rlnÔ|j3t>k�r¦d|j3t>  |j4 }||ƒ| j; ?|i ¡|j2< nš|j3}|dk�sÊ|dGk�rÐ|dSk�rÐ|}nVdT}|d dk�rê|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 )YNÚreadÚrbzToo short input filer   z0The file claims to have negative or zero length!é   z(The file has fewer bytes than it claims!z'The subfile size: '{name}' is negative!r	   zThe header length is only ú!r   éÿ   zThe character code range z..z is illegal!z-Incomplete subfiles for character dimensions!é   z
There are z extensible recipes!é   u0   Subfile sizes donâ€™t add up to the stated totalc                    s   dˆ |   S ©Nr$   r   ©Úc)Ú	char_baser   r   Ú	char_infoô   s    zTFM._read.<locals>.char_infoc                    s   ˆˆ | ƒ S r   r   r*   ©r-   Údatar   r   Úwidth_index÷   s    zTFM._read.<locals>.width_indexc                    s    | ˆ j k p| ˆ jkpˆ| ƒdkS )Nr   )ÚbcÚecr*   )Úsizesr0   r   r   Únoneexistentú   s    zTFM._read.<locals>.noneexistentc                    s   ˆˆ | ƒd  d S ©Nr   é   r   r*   r.   r   r   Úheight_indexý   s    zTFM._read.<locals>.height_indexc                    s   ˆˆ | ƒd  d S r5   r   r*   r.   r   r   Údepth_index   s    zTFM._read.<locals>.depth_indexc                    s   ˆˆ | ƒd  d S ©Nr	   r$   r   r*   r.   r   r   Úitalic_index  s    zTFM._read.<locals>.italic_indexc                    s   ˆˆ | ƒd  d S r9   r   r*   r.   r   r   Útag  s    zTFM._read.<locals>.tagc                    s   ˆˆ | ƒd  S )Nr
   r   r*   r.   r   r   Ú	remainder	  s    zTFM._read.<locals>.remainderc                    s   dˆˆ| ƒ  }ˆ |dƒd S ©Nr$   Úvr   ©r+   Úr)Ú
read_fixedÚ
width_baser0   r   r   Úwidth  s    zTFM._read.<locals>.widthc                    s   dˆ ˆ| ƒ  }ˆ|dƒd S r=   r   r?   )Úheight_baser7   rA   r   r   Úheight  s    zTFM._read.<locals>.heightc                    s   dˆ ˆ| ƒ  }ˆ|dƒd S r=   r   r?   )Ú
depth_baser8   rA   r   r   Údepth  s    zTFM._read.<locals>.depthc                    s   dˆ ˆ| ƒ  }ˆ|dƒd S r=   r   r?   )Úitalic_baser:   rA   r   r   Úitalic  s    zTFM._read.<locals>.italicc                    s   dˆ ˆ| ƒ  S r)   r   r*   )Ú
exten_baser<   r   r   Úexten  s    zTFM._read.<locals>.extenc                    s   dˆ |   S r)   r   ©Úi)Úlig_kern_baser   r   Úlig_step  s    zTFM._read.<locals>.lig_stepc                    s   t ƒ }ttˆ | d … |ƒ |S r   )r   r   ÚLIG_KERN_COMMAND)rM   Úcommand©r/   r   r   Úlig_kern_command"  s    z#TFM._read.<locals>.lig_kern_commandc                    s   dˆ |   }ˆ|dƒd S r=   r   )rM   r@   )Ú	kern_baserA   r   r   Úkern'  s    zTFM._read.<locals>.kernc                    s   dˆ |   S r)   r   rL   )Ú
param_baser   r   Úparam+  s    zTFM._read.<locals>.paramc                    s(   t d|› dt› �ˆ | d … |ƒ}|d S )Nz>;ú:r   )r   ÚFIXED_FORMAT)ÚindexÚkeyÚobjÚretrR   r   r   rA   .  s     zTFM._read.<locals>.read_fixedé   é   ZMBLr
   ZRIZRCEz>;HEADERz:lzTEX MATH SYzTEX MATH EXZ	PARAMETERé   é   é   rC   rE   rG   rI   Z
nextlargerÚvarcharÚrepÚtopÚmidZboté   Ú ú/ZLIGú>)N)@Úhasattrr"   ÚopenÚ_dataÚlenÚ
SIZES_SIZEr   r   r   ÚSIZES_FORMATÚlfÚvarsÚitemsZlhr1   r2   ÚnwZnhÚndÚniÚneÚnlZnkÚnpr   ÚHEADER_FORMAT4ÚHEADER_SIZE4ÚextraheaderÚfaceÚrangeÚHEADER_SIZE3ÚHEADER_FORMAT3ÚHEADER_SIZE2ÚHEADER_FORMAT2ÚHEADER_SIZE1ÚHEADER_FORMAT1ÚVANILLAÚfonttyper   ÚupperÚ
startswithÚMATHSYÚMATHEXÚ
fontdimensÚBASE_PARAMSÚMATHSY_PARAMSÚMATHEX_PARAMSÚright_boundary_charÚleft_boundary_charZ	skip_byteZ	next_charZop_byter<   ÚcharsÚNO_TAGÚLIG_TAGÚLIST_TAGÚEXT_TAGÚ	ligaturesÚkerningÚsortedÚ	STOP_FLAGÚ	KERN_FLAGÚ
setdefault)r   r   ÚfpÚnameÚlengthr4   r;   rC   rE   rG   rI   rK   rO   rS   rU   rW   ÚoffsetÚrestÚsÚbrM   ÚschemeZlig_kern_mapÚcmdr@   r+   ÚinfoZchar_tagrc   ÚpartZligr   )r,   r-   r/   rF   r8   rJ   rD   r7   rH   r:   rT   rN   rV   rA   r<   r3   rB   r0   r   r   ª   sv   

&


ÿ0ÿþýüûúùø	÷
öÿ
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
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



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
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
þz	TFM._readN)r   r   r   r   r!   r   r   r   r   r   r   ž   s   r   Ú__main__Nc                 c   s   | ]
}|V  qd S r   r   )Ú.0Úxr   r   r   Ú	<genexpr>¸  s   ÿrª   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=)9Ú__doc__Útypesr   ZfontTools.misc.sstructr   r   r   rp   ro   rY   r„   r‚   r€   rz   rƒ   r�   r   r{   rP   rŒ   r�   rŽ   r…   r‰   rŠ   ZUNREACHABLEZPASSTHROUGHZ
ACCESSABLEr’   r“   r”   r•   r™   rš   Ú	Exceptionr   r   r   ÚsysÚargvZtfmÚprintÚjoinZchecksumr    r   r†   r   Zseven_bit_safe_flagr}   r|   r‹   r�   r�   r—   r–   r‘   r   r   r   r   Ú<module>   s€   %ýÿÿÿ
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