jj dZddlmZddlmZddlmZddlmZddl m Z ddl m Z ddl mZmZdd lZdd lmZdd lZejeZGd d eZd ZdZdddddddddd ZefdZGddeZdZe jeZ dZ!e je!Z"dZ#dZ$d Z%d!Z&d"Z'e je'Z(d#Z)e je)Z*d$Z+e je+Z,d%Z-e je-Z.Gd&d'eZ/Gd(d)e/Z0Gd*d+e/Z1Gd,d-Z2d.Z3d/Z4e#dfd0Z5ed1kr,dd l6Z6dd l7Z7e6j8e7j9j:d Sd S)2attLib/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. ) annotations)KeysView)BytesIO)SimpleNamespace)Tag)sstruct) TTLibErrorTTLibFileIsCollectionErrorN) OrderedDictcTeZdZdZddZdd ZeZdd ZddZddZ ddZ dZ dZ dS) 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 S/data/share/cad/hardware/.venv/lib/python3.11/site-packages/fontTools/ttLib/sfnt.pyrzSFNTReader.__new__ s  3C:%%!WF KKNNNfkk!nn--K KKNNNf$$======~~k222~~c"""rFc||_||_d|_d|_t|_|jd|jd|_|jd|jdkrt|j}t|dr|s|j }|j }n|j }|j}d|cxkr|ksntd|dz z||_ |j|||jt }t#|t krt%dt'jt*||n|jdkrud |_t,|_|jt.}t#|t.krt%d t'jt0||na|jt }t#|t krt%d t'jt*||t3|j|_|jd vrt%d i} t5|jD]I} |} | |jt3| j} | | | <Jt=t?| d|_!|jd krtE||_dSdS)Nrrsttcf offsetTable2z2specify a font number between 0 and %d (inclusive)'Not a Font Collection (not enough data)wOFFwoffz!Not a WOFF font (not enough data)z1Not a TrueType or OpenType font (not enough data))OTTOtruez1Not a TrueType or OpenType font (bad sfntVersion)c|djS)Nr!)offset)is rz%SFNTReader.__init__..ds qt{r)key)#filecheckChecksumsflavor flavorDataSFNTDirectoryEntryDirectoryEntryrrr readTTCHeaderhasattr numFonts2r numFonts offsetTabler sfntDirectorySizelenr runpacksfntDirectoryFormatWOFFDirectoryEntrywoffDirectorySizewoffDirectoryFormatrrange numTablesfromFiletagr sorteditemstablesWOFFFlavorData) selfr-r. fontNumber _useLegacyTTCheaderr6r7datarEr*entryrBs r__init__zSFNTReader.__init__1s , 0 q9>>!,, q  w & &"49--Fv~.. 1} 1!+$1 !?$0  ----X----0H!|%%DM INN;z2 3 3 39>>"344D4yy--- !JKKK N.d ; ; ; ;   ( ( DK"4D 9>>"344D4yy--- !DEEE N.d ; ; ; ;9>>"344D4yy--- !TUUU N.d ; ; ;t/00  #G G GPQQ Q,.t~&&  A''))E NN49 % % %ei..CF3KK!&=R=R"S"S"STT  ;& ,T22DOOO ! rrB str | bytesreturnboolc||jvSNrErGrBs rhas_keyzSFNTReader.has_keyjsdk!!r KeysView[Tag]c4|jSrR)rEkeysrGs rrXzSFNTReader.keysos{!!!rbytesc|jt|}||j}|jr|dkr&t |dddz|ddz}nt |}|jdkr||jks Jd|zn&||jkrtd||S)zFetch the raw table data.headN r!zbad checksum for '%s' table) rErloadDatar-r. calcChecksumcheckSumlogwarning)rGrBrLrKchecksums r __getitem__zSFNTReader.__getitem__rs CHH%~~di((   @f}}'RaR;(>bcc(JKK'--"Q&&5>1113PSV3V1111U^++ 93??? rNonec0|jt|=dSrR)rErrTs r __delitem__zSFNTReader.__delitem__s KC ! ! !rc8|jdSrR)r-closerYs rrkzSFNTReader.closes rct|jtr|jS|j}|d=|jj|d<|j|d<|S)Nr- _filename_filepos) isinstancer-r__dict__copynametellrGstates r __getstate__zSFNTReader.__getstate__sc di ) ) !=  ""$$ &M!Y^k INN,,j rcd|vrUt|dd|_|j|d|j|dS)Nr-rmrbrn)openpopr-rrpupdaterts r __setstate__zSFNTReader.__setstate__sf   UYY{33T::DI INN599Z00 1 1 1 U#####rN)rrF)rBrNrOrP)rOrV)rBrNrOrZ)rBrNrOrg)rOrg) __name__ __module__ __qualname__rrMrU __contains__rXrfrirkrvr|rrr r s###"73737373r""""L""""$""""   $$$$$rr Fr!r] 2d) r!rrrrr] cd|cxkrdksntd|ztr|dkrddlm}|||Sddlm}||t |S)aECompress 'data' to Zlib format. If 'USE_ZOPFLI' variable is True, zopfli is used instead of the zlib module. The compression 'level' must be between 0 and 9. 1 gives best speed, 9 gives best compression (0 gives no compression at all). The default value is a compromise between speed and compression (6). rrzBad compression level: %s)compress) numiterations) ValueError USE_ZOPFLIzlibr zopfli.zlib ZOPFLI_LEVELS)rKlevelrs rrrs OOOO!OOOO4u<=== B!!!!!!!xe$$$((((((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/rwoff2r) WOFF2Writer)r9rrrrr)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/r0r>directoryFormatr= directorySizer<r2 signaturer8sfntDirectoryEntrySizeorigNextTableOffsetr;r1fontTools.ttLibr searchRange entrySelector rangeShiftrsdirectoryOffset formatSizenextTableOffsetrwriter rE)rGr-r@rr/r0rs rrMzSFNTWriter.__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)rEr )rGrBrLs rsetEntryzSFNTWriter.setEntrys5 $+  83>?? ?  Crc||jvrtd|z|}||_|j|_|dkr9t |dddz|ddz|_||_d|_ nt ||_| |j ||j dkr'|j |_|xj |jd zd zz c_ |j|jd zd zz|_|j d |j|j z z|j|j ksJ|||dS) zWrite raw table data to disk.rr\Nr]r^r_Tr$rr)rEr r2rBrr)rarb headTable uncompressedsaveDatar-r/r origOffset origLengthlengthrrsr)rGrBrKrLs r __setitem__zSFNTWriter.__setitem__sl $+  83>?? ?##%% + &==)$rr([*@49*LMMEN!DN!%E  )$//EN ty$''' ;& #7E   $ $)9A)=(C C $ $#3 q8HB7NO !5 8H8H!HIJJJ#ty~~'7'77777 c5!!!!!rc|j|SrRrSrTs rrfzSFNTWriter.__getitem__5s{3rct|j}t||jkr&t d|jt|fz|jdkrd|_d|_d|_ |xj dt|zz c_ |D] \}}|xj |j dzdzz c_ !|j r|j n t}|j |j|j |_ |j|_nNt|d r0t!jd |jd d \|_ |_ndx|_ |_|jrt|j|_|jdd|j|_t3|j}t||_|j|ndx|_x|_|_|jr|jdd|j}|dzdz}|jd||z z|j|_t|j|_|j|jndx|_|_|jdd|j|_n|jrJd|jz tAj!|j"|}|j|j#|j$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#rr_rrrNrz>HHrr]rrrr\r!)'rCrErDr9r@r r/rreserved totalSfntSizerr0rF majorVersion minorVersionr4structr:rmetaDatametaOrigLengthr-rrs metaOffsetr metaLengthrprivData privOffset privLengthrrpackrrrtoStringwriteMasterChecksum) rGrErBrLrKcompressedMetaDataoff paddedOff directoryseenHeads rrkzSFNTWriter.close8s ))++,, 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  $ $Y / / / t+,,,  """""rc$g}|jD]'}||j|j(|jt krddlm}||jd\|_ |_ |_ tj t|}t|j}|D]Z\}}t }|j|_|j|_|j|_|j|_||z}[t.t1|jt2zz}|t1|ksJ|t5|t7|dz} d| z dz} | S)Nrrrl/ac)rErXappendrbr2r1rrr@rrrrrr;rCrDrBrr)rrrr8r9rrasum) rGr checksumsrBrrErL sfntEntry directory_endrechecksumadjustments r_calcMasterChecksumzSFNTWriter._calcMasterChecksums ;##%% 8 8C   T[-6 7 7 7 7  "4 4 4 6 6 6 6 6 6DRNEE AD d0$/ %8$??IDK--//00F$ = = U.00 % %*^ "#(#3  #(#3  % (:(:(<(<< )C ,<,>J.(83zA!!rc||}|j|jdjdz|jt jd|dS)Nr\r]>L)rr-rrEr)rrr)rGrrs rrzSFNTWriter.writeMasterChecksums`!55i@@ t{6*1A5666  D*<==>>>>>rcdSNFrrYs rreordersTableszSFNTWriter.reordersTablessur)r%NN) r}r~rrrMrrrfrkrrrrrrrrs###,' /$/$/$/$b!!! """<   E#E#E#N"""@??? 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 ulDsigTag: L # version 2.0 only ulDsigLength: L # version 2.0 only ulDsigOffset: L # version 2.0 only iiiiz > # 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) r2cd|_dSr)rrYs rrMzDirectoryEntry.__init__s!rc||j}t||jkr&td|jt|fzt j|j||dS)Nz?unexpected end of table directory: expected %d bytes but got %d)rrr9r rr:formatrGr-rKs rrAzDirectoryEntry.fromFilesryy)) t99 ' 'Q?CII./  t{D$/////rc<tj|j||dSrR)rr:r)rGstrs r fromStringzDirectoryEntry.fromString st{C.....rc6tj|j|SrR)rrrrYs rrzDirectoryEntry.toString s|DK...rct|dr$d|jj|jt |fzSd|jjt |fzS)NrBz<%s '%s' at %x>z <%s at %x>)r4 __class__r}rBidrYs r__repr__zDirectoryEntry.__repr__sO 4   F$(?2d88'TT T4>#:BtHH"EE Erc||j||j}t ||jkrOt |dd}t d|t|nd|jt ||jfzt|j dr| |}|S)NrBzLunexpected end of '%s' table data: expected %d bytes but got %d at offset %d???? decodeData) rr)rrr9getattrr rr4rr)rGr-rKrBs rr`zDirectoryEntry.loadDatas $+yy%% t99 # #$t,,C"!$CHHHVKIIK     4>< 0 0 )??4((D rct|jdr||}t||_||j||dS)N encodeData)r4rrr9rrr)rrs rrzDirectoryEntry.saveData+s` 4>< 0 0 )??4((D$ii  $+ 4rc|SrRr)rGrawDatas rrzDirectoryEntry.decodeData2src|SrRr)rGrKs rrzDirectoryEntry.encodeData5s rN) r}r~rrMrArrrr`rrrrrrr2r2s""" 0 0 0//////FFF ,rr2ceZdZeZeZdS)r1N)r}r~rsfntDirectoryEntryFormatrrrrrrr1r19s %F'JJJrr1c2eZdZeZeZfdZdZdZ xZ S)r<ctt|ttdst|_dSdS)NzlibCompressionLevel)superr<rMr4ZLIB_COMPRESSION_LEVELr)rGrs rrMzWOFFDirectoryEntry.__init__BsN  $''00222)+ABB ?(>D % % % ? ?rczddl}|j|jkr|}ntt |ddpd}|j|jkrt d||j|jfz||}t||jkr't d||jt|fz|S)NrrBrzTcorrupt WOFF table '%s': compressed length %d is not smaller than original length %dzHunexpected size for decompressed WOFF table '%s': expected %d but got %d)rrrrrr decompressr9)rGrrrKrBs rrzWOFFDirectoryEntry.decodeDataMs ;$/ ) )DD gdE400:F;;C{do-- 6DK9: ??7++D4yyDO++ -03T_c$ii/PQ rct||_|jst||j}|jst||jkr|}|j|_n|}t||_|SrR)r9rrrrr)rGrKcompressedDatars rrzWOFFDirectoryEntry.encodeDatafssd))  G%dD,EFFN   'N 3 3t F FG/DKK$Gg,,DKr) r}r~rwoffDirectoryEntryFormatrwoffDirectoryEntrySizerrMrr __classcell__)rs@rr<r<>s` %F'J ? ? ? ? ?2       rr<c eZdZdZddZdZdS)rFr$NcJd|_d|_d|_d|_|r|j|_|j|_|jr|j|j|j|j}t||jkr&td|jt|fz| |}t||j kr&td|j t|fz||_|j r|j|j|j|j }t||j kr&td|j t|fz||_dSdSdS)Nz=unexpected end of WOFF metadata: expected %d bytes but got %dzFunexpected size for decompressed WOFF metadata: expected %d but got %dzAunexpected end of WOFF private data: expected %d bytes but got %d)rrrrrr-rrrr9r _decompressrrr)rGreaderrrKs rrMzWOFFFlavorData.__init__ws     % & 3D  & 3D   %   !2333 +**6+<==w<<6#444$%(.(93w<<'HI''00t99 555$14:4I3t993UV!%   %   !2333{''(9::t99 111$+.4.?T-KL!% ; % %* % %rc4ddl}||S)Nr)rr)rGrrs rrzWOFFFlavorData._decompresss w'''rrR)r}r~rFlavorrMrrrrrFrFts= F"%"%"%"%H(((((rrFc8t|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 rrri>%dLr)r9r?rr:r)rK remaindervalue blockSizer*blocklongss rrarasD A I( Y'' EI q=A     1c$ii + +22QY&' fE a8%@@U#z1 Lrc|d|t}t|tkrt dt }t jt|||j dkrt d|j ttttfvsJd|j ztjd|jz||jdz|_|j ttfvr\|t$}t|t$krt dt jt&|||j ttfvr|d}t|dkrt dtjd|d|_||jdz}t||jdzkrt dtjd|jz||_|S) Nrr"ttcfzNot a Font Collectionunrecognized TTC version 0x%08xr rr)rr ttcHeaderSizer9r rrr:ttcHeaderFormatTTCTagVersionTTC_V1TTC_V1_1TTC_V2TTC_V2_1rr6r7 ttcTailSizeV2ttcTailFormatV2r5r )r-rKrGs rr3r3sIIaLLL 99] # #D 4yyM!!BCCC   D N?D$/// {f0111 >FGG GtT2215yy!+,, t99* * *FGG G"M&4>*A4HH Krct}d|_||_|jttt t fvsJd|jz||_|d| tj t|| }| tj d|jzgdg|jzR|t t fvr*| tj dddd|tt fvrT| tj d|| tj d|zgdg|zR|S)Nrrrr z>3Lr)rrrrrrrr6rrrrrrsr)r-r6versionr5rGr)s rwriteTTCHeaderrsW   DDKDL r=rrr2r1r<rFrar3rsysdoctestexittestmodfailedrrrr1sw  #"""""$$$$$$!!!!!!((((((""""""BBBBBBBB ######g!!A$A$A$A$A$A$A$A$J          0BBBB&YYYYYYYY| ! 11 ! 11    %G$%899*)*BCC"%G$%899*)*BCC<<<<<V<<<~(((((((( 33333333l*(*(*(*(*(*(*(*(Z0B,2Q, zJJJNNN CH_W_   %&&&&& r