]Mh0Y dZddlmZddlmZddlmZddlmZddl m Z m Z ddl Z ddl mZddlZejeZGd d eZd Zd Zd ddddddddd ZefdZGddeZdZejeZdZejeZdZejeZ dZ!eje!Z"dZ#eje#Z$Gdd eZ%Gd!d"e%Z&Gd#d$e%Z'Gd%d&Z(d'Z)d(Z*d)Z+ed*kr,ddl,Z,ddl-Z-e,j.e-j/j0dSdS)+attLib/sfnt.py -- low-level module to deal with the sfnt file format. Defines two public classes: - SFNTReader - SFNTWriter (Normally you don't have to use these classes explicitly; they are used automatically by ttLib.TTFont.) The reading and writing of sfnt files is separated in two distinct classes, since whenever the number of tables changes or whenever a table's length changes you need to rewrite the whole file anyway. )BytesIO)SimpleNamespace)Tag)sstruct) TTLibErrorTTLibFileIsCollectionErrorN) OrderedDictcJeZdZdZd dZdZeZdZdZdZ d Z d Z d Z d S) SFNTReaderc@|r|turz|d}|dt|d}|d|dkr ddlm}t |St |S)zmReturn an instance of the SFNTReader sub-class which is compatible with the input file type. rwOF2) WOFF2Reader)r seekrreadfontTools.ttLib.woff2robject__new__)clsargskwargsinfile sfntVersionrs T/var/www/html/test/jupyter/venv/lib/python3.11/site-packages/fontTools/ttLib/sfnt.pyrzSFNTReader.__new__s  3C:%%!WF KKNNNfkk!nn--K KKNNNf$$======~~k222~~c"""rc>||_||_d|_d|_t|_|jd|jd|_|jd|jdkrt|j}|j }d|cxkr|ksntd|dz z||_ |j|j ||jt}t|tkrtdt!jt$||n|jdkrud|_t&|_|jt(}t|t(krtd t!jt*||na|jt}t|tkrtd t!jt$||t-|j|_|jd vrtd i}t/|jD]I}|} | |jt-| j} | || <Jt7t9|d |_|jdkrt?||_dSdS)Nrr sttcfz2specify a font number between 0 and %d (inclusive)'Not a Font Collection (not enough data)wOFFwoffz!Not a WOFF font (not enough data)z1Not a TrueType or OpenType font (not enough data))OTTOtruez1Not a TrueType or OpenType font (bad sfntVersion)c|djS)Nr)offset)is rz%SFNTReader.__init__..]s qt{r)key) filecheckChecksumsflavor flavorDataSFNTDirectoryEntryDirectoryEntryrrr readTTCHeadernumFontsr offsetTablesfntDirectorySizelenrrunpacksfntDirectoryFormatWOFFDirectoryEntrywoffDirectorySizewoffDirectoryFormatrrange numTablesfromFiletagr sorteditemstablesWOFFFlavorData) selfr*r+ fontNumberheaderr1datar@r'entryr=s r__init__zSFNTReader.__init__/s , 0 q9>>!,, q  w & &"49--FH ----X----0H!|%%DM INN6-j9 : : :9>>"344D4yy--- !JKKK N.d ; ; ; ;   ( ( DK"4D 9>>"344D4yy--- !DEEE N.d ; ; ; ;9>>"344D4yy--- !TUUU N.d ; ; ;t/00  #G G GPQQ Qt~&&  A''))E NN49 % % %ei..CF3KK!&=R=R"S"S"STT  ;& ,T22DOOO ! rc||jvSNr@rBr=s rhas_keyzSFNTReader.has_keycsdk!!rc4|jSrI)r@keysrBs rrNzSFNTReader.keyshs{!!!rc|jt|}||j}|jr|dkr&t |dddz|ddz}nt |}|jdkr||jks Jd|zn&||jkrtd||S)zFetch the raw table data.headN rzbad checksum for '%s' table) r@rloadDatar*r+ calcChecksumcheckSumlogwarning)rBr=rFrEchecksums r __getitem__zSFNTReader.__getitem__ks CHH%~~di((   @f}}'RaR;(>bcc(JKK'--"Q&&5>1113PSV3V1111U^++ 93??? rc0|jt|=dSrI)r@rrKs r __delitem__zSFNTReader.__delitem__}s KC ! ! !rc8|jdSrI)r*closerOs rr_zSFNTReader.closes rct|jtr|jS|j}|d=|jj|d<|j|d<|S)Nr* _filename_filepos) isinstancer*r__dict__copynametellrBstates r __getstate__zSFNTReader.__getstate__sc di ) ) !=  ""$$ &M!Y^k INN,,j rcd|vrUt|dd|_|j|d|j|dS)Nr*rarbrb)openpopr*rrdupdaterhs r __setstate__zSFNTReader.__setstate__sf   UYY{33T::DI INN599Z00 1 1 1 U#####rN)rr) __name__ __module__ __qualname__rrGrL __contains__rNr[r]r_rjrprrr r s###"23232323h"""L"""$"""   $$$$$rr FrrR 2d) rrwr rxrvrR cd|cxkrdksntd|ztr|dkrddlm}|||Sddlm}||t |S)aECompress 'data' to Zlib format. If 'USE_ZOPFLI' variable is True, zopfli is used instead of the zlib module. The compression 'level' must be between 0 and 9. 1 gives best speed, 9 gives best compression (0 gives no compression at all). The default value is a compromise between speed and compression (6). rrzBad compression level: %s)compress) numiterations) ValueError USE_ZOPFLIzlibr zopfli.zlib ZOPFLI_LEVELS)rElevelrs rrrs OOOO!OOOO4u<=== B!!!!!!!xe$$$((((((xM%,@AAAArcLeZdZdZ d dZdZdZdZdZd Z d Z d Z dS) SFNTWritercd}|r d|vr |d}n|rt|dkr|d}|tur&|dkr ddlm}t|St|S)zpReturn an instance of the SFNTWriter sub-class which is compatible with the specified 'flavor'. Nr,rwwoff2r) WOFF2Writer)r4rrrrr)rrrr,rs rrzSFNTWriter.__new__s  h&((H%FF  c$ii!mm!WF *    ======~~k222~~c"""rr"Nc&||_||_t||_||_||_|jdkrCt |_t|_ t|_ d|_ t|tzz|_nb|jrJd|jzt |_t|_ t"|_ ddlm}||d\|_|_|_|j|_|j|j z||j jzz|_|j|j|jd|j|jz zt;|_dS)Nr!wOFFUnknown flavor '%s'rgetSearchRange)r*r;rrr,r-r9directoryFormatr8 directorySizer7r/ signaturer3sfntDirectoryEntrySizeorigNextTableOffsetr6r.fontTools.ttLibr searchRange entrySelector rangeShiftrgdirectoryOffset formatSizenextTableOffsetrwriter r@)rBr*r;rr,r-rs rrGzSFNTWriter.__init__s "{++ $ ;& #6D !2D "4D #DN"I0F$FF  $ ${ G G$9DK$G G G G#6D !2D "4D  6 6 6 6 6 6DRN2EE AD d0$/ $y~~//    !$-88 9  t+,,, !5 8H8H!HIJJJ!mm rcP||jvrtd|z||j|<dS)Ncannot rewrite '%s' table)r@r)rBr=rFs rsetEntryzSFNTWriter.setEntry s5 $+  83>?? ?  Crc||jvrtd|z|}||_|j|_|dkr9t |dddz|ddz|_||_d|_ nt ||_| |j ||j dkr'|j |_|xj |jd zd zz c_ |j|jd zd zz|_|j d |j|j z z|j|j ksJ|||dS) zWrite raw table data to disk.rrQNrRrSrTTr!rwr)r@rr/r=rr&rVrW headTable uncompressedsaveDatar*r,r origOffset origLengthlengthrrgr)rBr=rErFs r __setitem__zSFNTWriter.__setitem__sl $+  83>?? ?##%% + &==)$rr([*@49*LMMEN!DN!%E  )$//EN ty$''' ;& #7E   $ $)9A)=(C C $ $#3 q8HB7NO !5 8H8H!HIJJJ#ty~~'7'77777 c5!!!!!rc|j|SrIrJrKs rr[zSFNTWriter.__getitem__.s{3rct|j}t||jkr&t d|jt|fz|jdkrd|_d|_d|_ |xj dt|zz c_ |D] \}}|xj |j dzdzz c_ !|j r|j n t}|j |j|j |_ |j|_nNt|d r0t!jd |jd d \|_ |_ndx|_ |_|jrt|j|_|jdd|j|_t3|j}t||_|j|ndx|_x|_|_|jr|jdd|j}|dzdz}|jd||z z|j|_t|j|_|j|jndx|_|_|jdd|j|_n|jrJd|jz tAj!|j"|}|j|j#|j$zd} |D]$\}}|dkrd} ||%z}%| r|&||j|j#|j|d S)zTAll tables must have been written to disk. Now write the directory. z-wrong number of tables; expected %d, found %dr!r rrTrrwrNrz>HHr rRr~rrrQr)'r>r@r?r4r;rr,rreserved totalSfntSizerr-rA majorVersion minorVersionhasattrstructr5rmetaDatametaOrigLengthr*rrg metaOffsetr metaLengthrprivData privOffset privLengthrrpackrrrtoStringwriteMasterChecksum) rBr@r=rFrEcompressedMetaDataoff paddedOff directoryseenHeads rr_zSFNTWriter.close1s ))++,, v;;$. ( (?>3v;;/0  ;& $DNDM!#D    "s6{{"2 2  $ B B U""u'7!';r&AA"""&*oK4??>;K;KD ,1B1N$($5!$($5!!4-->;A=t~ac2<<8D%t'8'8=>=D%(9} L&)$-&8&8# q!$$$"&).."2"2%-dm%<%<""%&8"9"9  23333JKKK$/D4G} 6 q!$$$inn&& 1WN  S 9:::"&).."2"2"%dm"4"4  ....455$/ INN1a )..**DKK{ G G$9DK$G G G G L!5t<<  t+d.@@AAA  5 5JCf}}!ENN$4$44II  0  $ $Y / / / t+,,,  """""rct|j}g}tt |D]-}||j||j.|jtkrddl m }||j d\|_ |_ |_tjt"|}t%|j}|D]Z\}}t} |j| _|j| _|j| _|j| _|| z}[t4t |jt6zz} | t |ksJ|t9|t;|dz} d| z dz} | S)Nrrrl/ac)listr@rNr:r4appendrWr/r.rrr;rrrrrr6r>r?r=rr&rrrr3rrVsum) rBrtags checksumsr'rr@r=rF sfntEntry directory_endrZchecksumadjustments r_calcMasterChecksumzSFNTWriter._calcMasterChecksumxsDK$$&&'' s4yy!! < >J.(83zA!!rc||}|j|jdjdz|jt jd|dS)NrQrRz>L)rr*rr@r&rrr)rBrrs rrzSFNTWriter.writeMasterChecksums`!55i@@ t{6*1A5666  D*<==>>>>>rcdSNFrurOs rreordersTableszSFNTWriter.reordersTablessur)r"NN) rqrrrsrrGrrr[r_rrrrurrrrs###,' /$/$/$/$b!!! """<   E#E#E#N"""B??? rra > # big endian TTCTag: 4s # "ttcf" Version: L # 0x00010000 or 0x00020000 numFonts: L # number of fonts # OffsetTable[numFonts]: L # array with offsets from beginning of file # ulDsigTag: L # version 2.0 only # ulDsigLength: L # version 2.0 only # ulDsigOffset: L # version 2.0 only z > # big endian sfntVersion: 4s numTables: H # number of tables searchRange: H # (max2 <= numTables)*16 entrySelector: H # log2(max2 <= numTables) rangeShift: H # numTables*16-searchRange zc > # big endian tag: 4s checkSum: L offset: L length: L ab > # big endian signature: 4s # "wOFF" sfntVersion: 4s length: L # total woff file size numTables: H # number of tables reserved: H # set to 0 totalSfntSize: L # uncompressed size majorVersion: H # major version of WOFF file minorVersion: H # minor version of WOFF file metaOffset: L # offset to metadata block metaLength: L # length of compressed metadata metaOrigLength: L # length of uncompressed metadata privOffset: L # offset to private data block privLength: L # length of private data block z > # big endian tag: 4s offset: L length: L # compressed length origLength: L # original length checkSum: L # original checksum cDeZdZdZdZdZdZdZdZdZ dZ d Z d S) r/cd|_dSr)rrOs rrGzDirectoryEntry.__init__s!rcltj|j||j|dSrI)rr5formatrr)rBr*s rr<zDirectoryEntry.fromFiles,t{DIIdo$>$>EEEEErc<tj|j||dSrI)rr5r)rBstrs r fromStringzDirectoryEntry.fromStringst{C.....rc6tj|j|SrI)rrrrOs rrzDirectoryEntry.toStrings|DK...rct|dr$d|jj|jt |fzSd|jjt |fzS)Nr=z<%s '%s' at %x>z <%s at %x>)r __class__rqr=idrOs r__repr__zDirectoryEntry.__repr__sO 4   F$(?2d88'TT T4>#:BtHH"EE Erc||j||j}t ||jksJt |jdr||}|S)N decodeData)rr&rrr4rrrrBr*rEs rrUzDirectoryEntry.loadDatasl $+yy%%4yyDK'''' 4>< 0 0 )??4((D rct|jdr||}t||_||j||dS)N encodeData)rrrr4rrr&rrs rrzDirectoryEntry.saveDatas` 4>< 0 0 )??4((D$ii  $+ 4rc|SrIru)rBrawDatas rrzDirectoryEntry.decodeDatasrc|SrIru)rBrEs rrzDirectoryEntry.encodeData s rN) rqrrrsrGr<rrrrUrrrrurrr/r/s"""FFF//////FFF rr/ceZdZeZeZdS)r.N)rqrrrssfntDirectoryEntryFormatrrrrurrr.r.s %F'JJJrr.c2eZdZeZeZfdZdZdZ xZ S)r7ctt|ttdst|_dSdS)NzlibCompressionLevel)superr7rGrZLIB_COMPRESSION_LEVELr)rBrs rrGzWOFFDirectoryEntry.__init__sN  $''00222)+ABB ?(>D % % % ? ?rcddl}|j|jkr|}nA|j|jksJ||}t ||jksJ|SNr)rrr decompressr4)rBrrrEs rrzWOFFDirectoryEntry.decodeData#se ;$/ ) )DD;0000??7++Dt99//// rct||_|jst||j}|jst||jkr|}|j|_n|}t||_|SrI)r4rrrrr)rBrEcompressedDatars rrzWOFFDirectoryEntry.encodeData.ssd))  G%dD,EFFN   'N 3 3t F FG/DKK$Gg,,DKr) rqrrrswoffDirectoryEntryFormatrwoffDirectoryEntrySizerrGrr __classcell__)rs@rr7r7s` %F'J ? ? ? ? ?          rr7c eZdZdZddZdZdS)rAr!Ncrd|_d|_d|_d|_|r|j|_|j|_|jr|j|j|j|j}t||jksJ| |}t||j ksJ||_|j rc|j|j |j|j }t||j ksJ||_dSdSdSrI)rrrrrr*rrrr4 _decompressrrr)rBreaderrrEs rrGzWOFFFlavorData.__init__?s=     % & 3D  & 3D   %   !2333 +**6+<==7||v'88888''004yyF$99999 $   %   !2333{''(9::4yyF$55555 $  % % % %rc4ddl}||Sr)rr)rBrrs rrzWOFFFlavorData._decompressTs w'''rrI)rqrrrsFlavorrGrrurrrArA<s< F%%%%*(((((rrAc8t|dz}|r |dd|z zz }d}d}|dzdksJtdt||D]L}||||z}tjdt|dzz|}|t |zdz}M|S)a,Calculate the checksum for an arbitrary block of data. If the data length is not a multiple of four, it assumes it is to be padded with null byte. >>> print(calcChecksum(b"abcd")) 1633837924 >>> print(calcChecksum(b"abcdxyz")) 3655064932 r rri>%dLr)r4r:rr5r)rE remaindervalue blockSizer'blocklongss rrVrVZsD A I( Y'' EI q=A     1c$ii + +22QY&' fE a8%@@U#z1 Lrc|d|t}t|tkrt dt }t jt|||j dkrt d|j dks|j dksJd|j ztjd|j z||j d z|_ |j dkr |S) NrrttcfzNot a Font Collectionizunrecognized TTC version 0x%08xrr )rr ttcHeaderSizer4rrrr5ttcHeaderFormatTTCTagVersionrr1r2)r*rErBs rr0r0rsIIaLLL 99] # #D 4yyM!!BCCC   D N?D$/// {f0111 <: % %)C)C)C)DL8*D)C)C} $-!*; < <D |z!! Krcdt}d|_d|_||_|d|t jt|| }|tjd|jzgdg|jzR|S)Nrrrr) rr r r1rrrrr rgr)r*r1rBr&s rwriteTTCHeaderr s   DDKDLDMIIaLLLJJw|OT22333 YY[[FJJv{6DM1JaS4=5HJJJKKK Mr__main__)1__doc__iortypesrfontTools.misc.textToolsrfontTools.miscrrrrr collectionsr logging getLoggerrqrXrr rrrrrr calcsizerr6r3rrr9r8rrr/r.r7rArVr0r sysdoctestexittestmodfailedrurrrs  !!!!!!((((((""""""BBBBBBBB ######g!!|$|$|$|$|$|$|$|$@          0BBBB&ZZZZZZZZ~ ! 11 %G$%899*)*BCC"%G$%899*)*BCC&&&&&V&&&R(((((((( %%%%%%%%P((((((((<0(    zJJJNNN CH_W_   %&&&&& r