o h@snddlmZddlmZddlmZddlmZmZm Z ddl m Z ddl m Z ddlmZmZmZmZddlmZmZdd lmZmZmZdd lZdd lZdd lZeeZGd d d e Z!Gd dde Z"ddZ#iZ$d3ddZ%ddZ&ddZ'ddZ(ddZ)ddZ*ddZ+dd Z,d!d"Z-d#d$Z.d%d&Z/gd'Z0gd(Z1d3d)d*Z2d4d,d-Z3d.d/Z4d5d1d2Z5d S)6)Config) xmlWriter)AbstractConfig)Tagbyteordtostr)deprecateArgument) TTLibError)_TTGlyph_TTGlyphSetCFF_TTGlyphSetGlyf_TTGlyphSetVARC) SFNTReader SFNTWriter)BytesIOStringIOUnsupportedOperationNc@seZdZdZdddddddeddddddifdd Zd d Zd d ZddZdWddZ dXddZ dYddZ        dZddZ d[ddZ dXddZddZd d!ZeZd"d#ZdXd$d%Zd&d'Zd(d)Zd*d+Zd,d-Zd.d/ZdXd0d1Zd2d3Zd4d5Zd6d7Zed8d9Zd:d;Zdd?Z!d@dAZ"dBdCZ#dDdEZ$d\dFdGZ%dHdIZ&dXdJdKZ'dLdMZ( d]dNdOZ)dPdQZ* Rd^dSdTZ+dUdVZ,dS)_TTFonta_Represents a TrueType font. The object manages file input and output, and offers a convenient way of accessing tables. Tables will be only decompiled when necessary, ie. when they're actually accessed. This means that simple operations can be extremely fast. Example usage: .. code-block:: pycon >>> >> from fontTools import ttLib >> tt = ttLib.TTFont("afont.ttf") # Load an existing font file >> tt['maxp'].numGlyphs 242 >> tt['OS/2'].achVendID 'B&H' >> tt['head'].unitsPerEm 2048 For details of the objects returned when accessing each table, see the :doc:`tables ` documentation. To add a table to the font, use the :py:func:`newTable` function: .. code-block:: pycon >>> >> os2 = newTable("OS/2") >> os2.version = 4 >> # set other attributes >> font["OS/2"] = os2 TrueType fonts can also be serialized to and from XML format (see also the :doc:`ttx ` binary): .. code-block:: pycon >> >> tt.saveXML("afont.ttx") Dumping 'LTSH' table... Dumping 'OS/2' table... [...] >> tt2 = ttLib.TTFont() # Create a new font object >> tt2.importXML("afont.ttx") >> tt2['maxp'].numGlyphs 242 The TTFont object may be used as a context manager; this will cause the file reader to be closed after the context ``with`` block is exited:: with TTFont(filename) as f: # Do stuff Args: file: When reading a font from disk, either a pathname pointing to a file, or a readable file object. res_name_or_index: If running on a Macintosh, either a sfnt resource name or an sfnt resource index number. If the index number is zero, TTLib will autodetect whether the file is a flat file or a suitcase. (If it is a suitcase, only the first 'sfnt' resource will be read.) sfntVersion (str): When constructing a font object from scratch, sets the four-byte sfnt magic number to be used. Defaults to ```` (TrueType). To create an OpenType file, use ``OTTO``. flavor (str): Set this to ``woff`` when creating a WOFF file or ``woff2`` for a WOFF2 file. checkChecksums (int): How checksum data should be treated. Default is 0 (no checking). Set to 1 to check and warn on wrong checksums; set to 2 to raise an exception if any wrong checksums are found. recalcBBoxes (bool): If true (the default), recalculates ``glyf``, ``CFF ``, ``head`` bounding box values and ``hhea``/``vhea`` min/max values on save. 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NzrTFcCsdD]}t|}|durt|dt|||q| |_||_| |_i|_d|_t |t r2| nt ||_ | |_|sG||_||_d|_dSd}t|ds}d}|durwddlm}|dkrp||rj||d}n7t|d}n1|||}n*t|d}n$d }t|d r|}nt|d rz|dWn tyd }Ynw|js|r|dt|}t|d r|j|_|r||}n|std ||_ t!||| d|_|jj|_|jj|_|jj|_dS)N)verbosequietconfigure logging insteadTread)macUtilsrrbFseekableseeknamez*Input file must be seekable when lazy=True) fontNumber)"localsgetrsetattrlazy recalcBBoxesrecalcTimestamptablesreader isinstancercopyrcfgignoreDecompileErrors sfntVersionflavor flavorDatahasattrrgetSFNTResIndicesSFNTResourceReaderopenrrrrrrcloser _tableCacher)selffileres_name_or_indexr,r-checkChecksumsrr$allowVIDr+r%rr#rr5r*rvalr closeStreamrtmpr>j/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py__init__jsj                zTTFont.__init__cCs|SNr>r6r>r>r? __enter__zTTFont.__enter__cCs |dSrA)r4)r6typevalue tracebackr>r>r?__exit__s zTTFont.__exit__cCs|jdur |jdSdS)z+If we still have a reader object, close it.N)r'r4rBr>r>r?r4s z TTFont.closecCst|ds|jr|jjj|krtdd}nd}t}||}|dusP|sP|dur/|jdusP|dur;t|j }nd}| t}t |||| |}|rot |d}||Wdn1siwYn||| dS)aSave the font to disk. 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NcCsdSrAr>rr>r>r?r@\rDzGlyphOrder.__init__cCsP|}|d|tt|D]}||}|jd||d|qdS)NzAThe 'id' attribute is only for humans; it is ignored when parsed.GlyphID)idr)rcommentr{rrZr)r6r`rorrrr>r>r?r_s zGlyphOrder.toXMLcCs8t|dsg|_|dkr|j|d||jdS)Nrrr)r/rrr)r6rrcontentror>r>r?fromXMLjs zGlyphOrder.fromXMLrA)rrrrr@rr r>r>r>r?rXWs   rXc Cslddlm}t|}ztd|Wnty0}zt||dkr*WYd}~dS|d}~wwt||S)z[Fetch the packer/unpacker module for a table. Return None when no module is found. rrzfontTools.ttLib.tables.rN)r0r&r __import__ ImportErrorstrfindgetattr)rbr&pyTagerrr>r>r?getTableModulers  r(cCs$|dur dt|}||ft|<dS)abRegister a custom packer/unpacker class for a table. The 'moduleName' must be an importable module. If no 'className' is given, it is derived from the tag, for example it will be ``table_C_U_S_T_`` for a 'CUST' tag. 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Nr)r* importlib import_moduler%)rbr0r+r,moduler>r>r?getCustomTableClasss    r3cCsNt|}|dur |St|}|durddlm}|St|}t|d|}|S)z,Fetch the packer/unpacker class for a table.Nrrr))r3r(rrrr%)rbrr2rr&r>r>r?rs rcCs.|j}|dddks J|dd}t|S)z'Fetch the table tag for a class object.Nr r))ridentifierToTag)klassrr>r>r? getClassTags r6cCst|}||S)z!Return a new instance of a table.)r)rbrr>r>r?newTablesr7cCsDddl}|d|rd|S|d|r|dStt|ddS)z%Helper function for tagToIdentifier()rNz[a-z0-9]_z[A-Z]rn)rematchhexr)cr9r>r>r? _escapechars   r=cCsddl}t|}|dkr|St|dksJdt|dkr6|ddkr6|dd}t|dkr6|ddks$d }|D]}|t|}q:|d |rMd |}|S) aConvert a table tag to a valid (but UGLY) python identifier, as well as a filename that's guaranteed to be unique even on a caseless file system. Each character is mapped to two characters. Lowercase letters get an underscore before the letter, uppercase letters get an underscore after the letter. Trailing spaces are trimmed. Illegal characters are escaped as two hex bytes. If the result starts with a number (as the result of a hex escape), an extra underscore is prepended. Examples: .. code-block:: pycon >>> >> tagToIdentifier('glyf') '_g_l_y_f' >> tagToIdentifier('cvt ') '_c_v_t' >> tagToIdentifier('OS/2') 'O_S_2f_2' rNrXrztag should be 4 characters longrr r0z[0-9]r8)r9rrZr=r:)rbr9identr<r>r>r?rs  rcCs|dkr|St|dr|ddkr|dd}t|dr Jd}tdt|dD]/}||dkr;|||d}q*||ddkrJ|||}q*|tt|||dd}q*|d t|d }t|S) z!the opposite of tagToIdentifier()rXrnrr8rNr0rr>)rZrchrrr)r?rbrr>r>r?r4s   r4cCsDddl}t|}|dkrdS|dkr|S|d|r|St|S)zSimilarly to tagToIdentifier(), this converts a TT tag to a valid XML element name. Since XML element names are case sensitive, this is a fairly simple/readable translation. rNOS/2OS_2rXz[A-Za-z_][A-Za-z_0-9]* *$)r9rr:stripr)rbr9r>r>r?rs rcCs<|dkrtdSt|dkrt|St|ddt|S)zThe opposite of tagToXML()rCrBr>r)rrZr4r.r>r>r?xmlToTag"s  rF)rWhhearrBhmtxLTSHVDMXhdmxrfpgmprepzcvt locarkernrrgaspPCLT)rWrGrrBrrrrcCsvt|}|durd|vr|d|dd|vrt}nt}g}|D]}||vr3||||q#|||S)zReturn a sorted copy of tagList, sorted according to the OpenType specification, or according to a custom tableOrder. If given and not None, tableOrder needs to be a list of tag names. NDSIGr)rrYr OTFTableOrder TTFTableOrderextend)tagListrT orderedTablesrbr>r>r?rFs      rFcCsp|d|dt||d}t|t|j|j|j|j}t| }t ||D]}||||<q)| dS)zcRewrite a font file, ordering the tables as recommended by the OpenType specification 1.4. r)r9N) rrrrZr&r,r-r.rLrMrr4)inFileoutFilerTr9r'r`r&rbr>r>r?rO^s     rOcCs*d}|r|d?}|d}|st|ddS)z_Return the highest exponent of two, so that (2 ** exponent) <= x. Return 0 if x is 0. rr)max)xexponentr>r>r? maxPowerOfTwors r]r@cCs4t|}d||}|}td|||}|||fS)z1Calculate searchRange, entrySelector, rangeShift.rnr)r]rZ)nitemSizer\ searchRange entrySelector rangeShiftr>r>r?getSearchRange}s   rcrAr)r@)6fontTools.configrrrfontTools.misc.configToolsrfontTools.misc.textToolsrrrfontTools.misc.loggingToolsrfontTools.ttLibr fontTools.ttLib.ttGlyphSetr r r r fontTools.ttLib.sfntrriorrrr|loggingrG getLoggerrrobjectrrXr(r*r-r/r3rr6r7r=rr4rrFrTrSrrOr]rcr>r>r>r?sP     G   #