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% Copyright (C) 2001-2023 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., 39 Mesa Street, Suite 108A, San Francisco,
% CA 94129, USA, 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 .setlanguagelevellevel2dict 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> <obj> -proc- <#refs'> <#chars'>
/cntdict mark /integertype /pop load /realtype 1 index /marktype 1 index /nulltype 1 index /booleantype 1 index /nametype { length add } .forcebind /stringtype 1 index /arraytype 0 % replaced below
/dicttype 0 % replaced below
.dicttomark def/.cntobj { dup type //cntdict exch get exec} .forcebind defcntdict /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} .forcebind put % replace arraytype in cntdict
cntdict /dicttype { /writeobject .systemvar /typecheck signalerror} .internalbind put
/.bosheader { % <top_length> <total_length> <string8> .bosheader
% <string4|8>
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} .forcebind def
/.writeobjects { % <file> <tag> <array> .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
} .forcebind 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} .forcebind def
/printobject { % <obj> <tag> printobject -
currentobjectformat 0 eq { /printobject .systemvar /undefined signalerror } if (%stdout) (w) file 2 index 2 index //.writeobject exec pop pop} odef
/writeobject { % <file> <obj> <tag> writeobject -
currentobjectformat 0 eq { /writeobject .systemvar /undefined signalerror } if 2 .argindex pop % check # of args
//.writeobject exec} odef
% Implement binary error message output.
/.objectprinttest { % <obj> .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} .internalbind 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} .internalbind 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 .undefinternalnamessystemdict .undefinternalnames
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