% Copyright (C) 2001-2020 Artifex Software, Inc. % All Rights Reserved. % % This software is provided AS-IS with no warranty, either express or % implied. % % This software is distributed under license and may not be copied, % modified or distributed except as expressly authorized under the terms % of the license contained in the file LICENSE in this distribution. % % Refer to licensing information at http://www.artifex.com or contact % Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato, % CA 94945, U.S.A., +1(415)492-9861, for further information. % % Initialization file for binary tokens. % When this is run, systemdict is still writable, % but everything defined here goes into level2dict. % Define whether or not to allow writing dictionaries. % This is a non-standard feature! /WRITEDICTS //false def languagelevel 1 .setlanguagelevel level2dict begin % Initialization for the system name table. mark % 0 /abs /add /aload /anchorsearch /and /arc /arcn /arct /arcto /array /ashow /astore /awidthshow /begin /bind /bitshift /ceiling /charpath /clear /cleartomark % 20 /clip /clippath /closepath /concat /concatmatrix /copy /count /counttomark /currentcmykcolor /currentdash /currentdict /currentfile /currentfont /currentgray /currentgstate /currenthsbcolor /currentlinecap /currentlinejoin /currentlinewidth /currentmatrix % 40 /currentpoint /currentrgbcolor /currentshared /curveto /cvi /cvlit /cvn /cvr /cvrs /cvs /cvx /def /defineusername /dict /div /dtransform /dup /end /eoclip /eofill % 60 /eoviewclip /eq /exch /exec /exit /file /fill /findfont /flattenpath /floor /flush /flushfile /for /forall /ge /get /getinterval /grestore /gsave /gstate % 80 /gt /identmatrix /idiv /idtransform /if /ifelse /image /imagemask /index /ineofill /infill /initviewclip /inueofill /inufill /invertmatrix /itransform /known /le /length /lineto % 100 /load /loop /lt /makefont /matrix /maxlength /mod /moveto /mul /ne /neg /newpath /not /null /or /pathbbox /pathforall /pop /print /printobject % 120 /put /putinterval /rcurveto /read /readhexstring /readline /readstring /rectclip /rectfill /rectstroke /rectviewclip /repeat /restore /rlineto /rmoveto /roll /rotate /round /save /scale % 140 /scalefont /search /selectfont /setbbox /setcachedevice /setcachedevice2 /setcharwidth /setcmykcolor /setdash /setfont /setgray /setgstate /sethsbcolor /setlinecap /setlinejoin /setlinewidth /setmatrix /setrgbcolor /setshared /shareddict % 160 /show /showpage /stop /stopped /store /string /stringwidth /stroke /strokepath /sub /systemdict /token /transform /translate /truncate /type /uappend /ucache /ueofill /ufill % 180 /undef /upath /userdict /ustroke /viewclip /viewclippath /where /widthshow /write /writehexstring /writeobject /writestring /wtranslation /xor /xshow /xyshow /yshow /FontDirectory /SharedFontDirectory /Courier % 200 /Courier-Bold /Courier-BoldOblique /Courier-Oblique /Helvetica /Helvetica-Bold /Helvetica-BoldOblique /Helvetica-Oblique /Symbol /Times-Bold /Times-BoldItalic /Times-Italic /Times-Roman /execuserobject /currentcolor /currentcolorspace /currentglobal /execform /filter /findresource /globaldict % 220 /makepattern /setcolor /setcolorspace /setglobal /setpagedevice /setpattern % pad to 256 counttomark 256 exch sub { 0 } repeat % 256 /= /== /ISOLatin1Encoding /StandardEncoding % 260 ([) cvn (]) cvn /atan /banddevice /bytesavailable /cachestatus /closefile /colorimage /condition /copypage /cos /countdictstack /countexecstack /cshow /currentblackgeneration /currentcacheparams /currentcolorscreen /currentcolortransfer /currentcontext /currentflat % 280 /currenthalftone /currenthalftonephase /currentmiterlimit /currentobjectformat /currentpacking /currentscreen /currentstrokeadjust /currenttransfer /currentundercolorremoval /defaultmatrix /definefont /deletefile /detach /deviceinfo /dictstack /echo /erasepage /errordict /execstack /executeonly % 300 /exp /false /filenameforall /fileposition /fork /framedevice /grestoreall /handleerror /initclip /initgraphics /initmatrix /instroke /inustroke /join /kshow /ln /lock /log /mark /monitor % 320 /noaccess /notify /nulldevice /packedarray /quit /rand /rcheck /readonly /realtime /renamefile /renderbands /resetfile /reversepath /rootfont /rrand /run /scheck /setblackgeneration /setcachelimit /setcacheparams % 340 /setcolorscreen /setcolortransfer /setfileposition /setflat /sethalftone /sethalftonephase /setmiterlimit /setobjectformat /setpacking /setscreen /setstrokeadjust /settransfer /setucacheparams /setundercolorremoval /sin /sqrt /srand /stack /status /statusdict % 360 /true /ucachestatus /undefinefont /usertime /ustrokepath /version /vmreclaim /vmstatus /wait /wcheck /xcheck /yield /defineuserobject /undefineuserobject /UserObjects /cleardictstack % 376 /A /B /C /D /E /F /G /H /I /J /K /L /M /N /O /P /Q /R /S /T /U /V /W /X /Y /Z /a /b /c /d /e /f /g /h /i /j /k /l /m /n /o /p /q /r /s /t /u /v /w /x /y /z % 428 /setvmthreshold (<<) cvn (>>) cvn /currentcolorrendering /currentdevparams /currentoverprint /currentpagedevice /currentsystemparams /currentuserparams /defineresource /findencoding /gcheck % 440 /glyphshow /languagelevel /product /pstack /resourceforall /resourcestatus /revision /serialnumber /setcolorrendering /setdevparams /setoverprint /setsystemparams /setuserparams /startjob /undefineresource /GlobalFontDirectory /ASCII85Decode /ASCII85Encode /ASCIIHexDecode /ASCIIHexEncode % 460 /CCITTFaxDecode /CCITTFaxEncode /DCTDecode /DCTEncode /LZWDecode /LZWEncode /NullEncode /RunLengthDecode /RunLengthEncode /SubFileDecode /CIEBasedA /CIEBasedABC /DeviceCMYK /DeviceGray /DeviceRGB /Indexed /Pattern /Separation /CIEBasedDEF /CIEBasedDEFG % 480 /DeviceN % 481 -- end //.packtomark exec .installsystemnames % Define printobject and writeobject. % These are mostly implemented in PostScript, so that we don't have to % worry about interrupts or callbacks when writing to the output file. % Define procedures for accumulating the space required to represent % an object in binary form. % <#refs> <#chars> -proc- <#refs'> <#chars'> /cntdict mark /integertype /pop load /realtype 1 index /marktype 1 index /nulltype 1 index /booleantype 1 index /nametype { length add } .bind /stringtype 1 index /arraytype 0 % replaced below /dicttype 0 % replaced below .dicttomark def /.cntobj { dup type //cntdict exch get exec } .bind def cntdict /arraytype { dup length % #refs #chars array len 4 -1 roll add % #chars array #refs+len dup 65536 gt { /writeobject .systemvar /limitcheck signalerror } if 3 1 roll % #refs+len #chars array //.cntobj forall } .bind put % replace arraytype in cntdict cntdict /dicttype { /writeobject .systemvar /typecheck signalerror } bind put /.bosheader { % .bosheader % dup 0 currentobjectformat 127 add put % object format => BOS tag 2 index 255 le 2 index 65531 le and { % Use the short header format: tag toplen(1) totlen(2) exch 4 add exch 0 4 getinterval dup 1 5 -1 roll put } { % Use the long header format: tag 0(1) toplen(2) totlen(4) exch 8 add exch 0 0 4 2 roll .bosobject exch pop exch pop % store with byte swapping } ifelse % Stack: shortlen str exch dup -8 bitshift exch 255 and % str hibyte lobyte currentobjectformat 1 and 0 eq { % lsb first exch } if 2 index 3 3 -1 roll put 1 index 2 3 -1 roll put } .bind def /.writeobjects { % .writeobjects - % Apply the tag early and forget about it. (12345678) dup 1 5 -1 roll % file array (...) (...) 1 tag put exch % file (.t.) array % Calculate the space required for refs and strings. % Reject excessively large graphs or graphs with loops. 0 0 % file (.t.) array #refs #chars 2 index //.cntobj exec % file (.t.) array #refs #chars % Write the header. 1 index 8 mul add % file (.t.) array #refs #refs*8+#chars 2 index length exch (12345678) % file (.t.) array #refs len(array) #refs*8+#chars (...) //.bosheader exec % file (.t.) array #refs (...) 4 index exch writestring % file (.t.) array #refs % Traverse an array tree in width-first order and place all the % arrays that are found on the operand stack. Acyclic graphs are % expanded to trees. The top parameter K indicates the number % of arrays on a given depth level. At the root level, K is equal to 1. mark 2 index 1 % file (.t.) array #refs -mark- array K { dup 0 le { pop exit } if dup { dup index { dup type /arraytype eq { exch 1 add } { pop } ifelse } forall 1 sub } repeat } loop % file (.t.) array #refs -mark- array1 ... arrayN counttomark 5 add -4 roll % -mark- array1 ... arrayN file (.t.) array #refs % Write the content of the root array 8 mul % -mark- array1 ... arrayN file (.t.) array #refs*8 exch dup length 8 mul % -mark- array1 ... arrayN file (.t.) #refs*8 array len(array)*8 3 1 roll % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 array { 3 index % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 obj (.t.) .bosobject % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 (.t.) 4 index exch writestring % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 } forall 3 -1 roll pop % -mark- array1 ... arrayN file len(array)*8 #refs*8 % Write the remaining arrays counttomark 2 sub -1 3 { index { % ... file #refs #str obj (1\000345678) .bosobject % ... file #refs #str (...) 3 index exch writestring % ... file #refs #str } forall } for pop pop % -mark- array1 ... arrayN file % Write strings and names. counttomark 1 sub -1 1 { index { dup type /nametype eq { .namestring } if dup type /stringtype eq { 1 index exch writestring } { pop } ifelse } forall } for cleartomark % Clean up } .bind def /.writeobject { 3 copy exch % We must allocate the array in local VM % to avoid a possible invalidaccess. .currentglobal //false .setglobal exch 1 array astore exch .setglobal //.writeobjects exec pop pop pop } .bind def /printobject { % printobject - currentobjectformat 0 eq { /printobject .systemvar /undefined signalerror } if (%stdout) (w) file 2 index 2 index //.writeobject exec pop pop } odef /writeobject { % writeobject - currentobjectformat 0 eq { /writeobject .systemvar /undefined signalerror } if 2 .argindex pop % check # of args //.writeobject exec } odef % Implement binary error message output. /.objectprinttest { % .objectprinttest - % This is a pseudo-operator so it will restore the stack % if it gets an error. mark 0 0 3 .argindex //.cntobj exec cleartomark pop } bind def /.printerror { $error /binary get .languagelevel 2 ge and { currentobjectformat 0 ne { [ /Error $error /errorname get $error /command get % Convert the object with cvs if it isn't printable. dup { //.objectprinttest exec } //.internalstopped exec { pop 100 string cvs } if //false ] 250 printobject } //.printerror % known to be a procedure ifelse } //.printerror % known to be a procedure ifelse } bind def currentdict /cntdict .undef % End of level2dict end .setlanguagelevel % undefine things defined in this file and not referenced elsewhere [ /.objectprinttest /.bosheader /.cntobj /.writeobject /.writeobjects ] dup level2dict .undefinternalnames systemdict .undefinternalnames