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335 lines
12 KiB
335 lines
12 KiB
% Copyright (C) 2001-2023 Artifex Software, Inc.
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% All Rights Reserved.
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%
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% This software is provided AS-IS with no warranty, either express or
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% implied.
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%
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% This software is distributed under license and may not be copied,
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% modified or distributed except as expressly authorized under the terms
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% of the license contained in the file LICENSE in this distribution.
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%
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% Refer to licensing information at http://www.artifex.com or contact
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% Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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% CA 94129, USA, for further information.
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%
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% Initialization file for binary tokens.
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% When this is run, systemdict is still writable,
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% but everything defined here goes into level2dict.
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% Define whether or not to allow writing dictionaries.
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% This is a non-standard feature!
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/WRITEDICTS //false def
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languagelevel 1 .setlanguagelevel
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level2dict begin
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% Initialization for the system name table.
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mark
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% 0
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/abs /add /aload /anchorsearch /and
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/arc /arcn /arct /arcto /array
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/ashow /astore /awidthshow /begin /bind
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/bitshift /ceiling /charpath /clear /cleartomark
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% 20
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/clip /clippath /closepath /concat /concatmatrix
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/copy /count /counttomark /currentcmykcolor /currentdash
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/currentdict /currentfile /currentfont /currentgray /currentgstate
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/currenthsbcolor /currentlinecap /currentlinejoin /currentlinewidth /currentmatrix
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% 40
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/currentpoint /currentrgbcolor /currentshared /curveto /cvi
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/cvlit /cvn /cvr /cvrs /cvs
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/cvx /def /defineusername /dict /div
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/dtransform /dup /end /eoclip /eofill
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% 60
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/eoviewclip /eq /exch /exec /exit
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/file /fill /findfont /flattenpath /floor
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/flush /flushfile /for /forall /ge
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/get /getinterval /grestore /gsave /gstate
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% 80
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/gt /identmatrix /idiv /idtransform /if
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/ifelse /image /imagemask /index /ineofill
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/infill /initviewclip /inueofill /inufill /invertmatrix
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/itransform /known /le /length /lineto
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% 100
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/load /loop /lt /makefont /matrix
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/maxlength /mod /moveto /mul /ne
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/neg /newpath /not /null /or
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/pathbbox /pathforall /pop /print /printobject
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% 120
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/put /putinterval /rcurveto /read /readhexstring
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/readline /readstring /rectclip /rectfill /rectstroke
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/rectviewclip /repeat /restore /rlineto /rmoveto
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/roll /rotate /round /save /scale
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% 140
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/scalefont /search /selectfont /setbbox /setcachedevice
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/setcachedevice2 /setcharwidth /setcmykcolor /setdash /setfont
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/setgray /setgstate /sethsbcolor /setlinecap /setlinejoin
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/setlinewidth /setmatrix /setrgbcolor /setshared /shareddict
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% 160
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/show /showpage /stop /stopped /store
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/string /stringwidth /stroke /strokepath /sub
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/systemdict /token /transform /translate /truncate
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/type /uappend /ucache /ueofill /ufill
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% 180
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/undef /upath /userdict /ustroke /viewclip
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/viewclippath /where /widthshow /write /writehexstring
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/writeobject /writestring /wtranslation /xor /xshow
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/xyshow /yshow /FontDirectory /SharedFontDirectory /Courier
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% 200
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/Courier-Bold /Courier-BoldOblique /Courier-Oblique /Helvetica /Helvetica-Bold
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/Helvetica-BoldOblique /Helvetica-Oblique /Symbol /Times-Bold /Times-BoldItalic
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/Times-Italic /Times-Roman /execuserobject /currentcolor /currentcolorspace
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/currentglobal /execform /filter /findresource /globaldict
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% 220
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/makepattern /setcolor /setcolorspace /setglobal /setpagedevice
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/setpattern
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% pad to 256
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counttomark 256 exch sub { 0 } repeat
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% 256
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/= /== /ISOLatin1Encoding /StandardEncoding
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% 260
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([) cvn (]) cvn /atan /banddevice /bytesavailable
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/cachestatus /closefile /colorimage /condition /copypage
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/cos /countdictstack /countexecstack /cshow /currentblackgeneration
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/currentcacheparams /currentcolorscreen /currentcolortransfer /currentcontext /currentflat
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% 280
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/currenthalftone /currenthalftonephase /currentmiterlimit /currentobjectformat /currentpacking
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/currentscreen /currentstrokeadjust /currenttransfer /currentundercolorremoval /defaultmatrix
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/definefont /deletefile /detach /deviceinfo /dictstack
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/echo /erasepage /errordict /execstack /executeonly
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% 300
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/exp /false /filenameforall /fileposition /fork
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/framedevice /grestoreall /handleerror /initclip /initgraphics
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/initmatrix /instroke /inustroke /join /kshow
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/ln /lock /log /mark /monitor
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% 320
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/noaccess /notify /nulldevice /packedarray /quit
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/rand /rcheck /readonly /realtime /renamefile
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/renderbands /resetfile /reversepath /rootfont /rrand
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/run /scheck /setblackgeneration /setcachelimit /setcacheparams
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% 340
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/setcolorscreen /setcolortransfer /setfileposition /setflat /sethalftone
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/sethalftonephase /setmiterlimit /setobjectformat /setpacking /setscreen
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/setstrokeadjust /settransfer /setucacheparams /setundercolorremoval /sin
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/sqrt /srand /stack /status /statusdict
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% 360
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/true /ucachestatus /undefinefont /usertime /ustrokepath
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/version /vmreclaim /vmstatus /wait /wcheck
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/xcheck /yield /defineuserobject /undefineuserobject /UserObjects
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/cleardictstack
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% 376
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/A /B /C /D /E /F /G /H /I /J /K /L /M
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/N /O /P /Q /R /S /T /U /V /W /X /Y /Z
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/a /b /c /d /e /f /g /h /i /j /k /l /m
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/n /o /p /q /r /s /t /u /v /w /x /y /z
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% 428
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/setvmthreshold (<<) cvn
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(>>) cvn /currentcolorrendering /currentdevparams /currentoverprint /currentpagedevice
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/currentsystemparams /currentuserparams /defineresource /findencoding /gcheck
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% 440
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/glyphshow /languagelevel /product /pstack /resourceforall
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/resourcestatus /revision /serialnumber /setcolorrendering /setdevparams
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/setoverprint /setsystemparams /setuserparams /startjob /undefineresource
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/GlobalFontDirectory /ASCII85Decode /ASCII85Encode /ASCIIHexDecode /ASCIIHexEncode
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% 460
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/CCITTFaxDecode /CCITTFaxEncode /DCTDecode /DCTEncode /LZWDecode
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/LZWEncode /NullEncode /RunLengthDecode /RunLengthEncode /SubFileDecode
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/CIEBasedA /CIEBasedABC /DeviceCMYK /DeviceGray /DeviceRGB
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/Indexed /Pattern /Separation /CIEBasedDEF /CIEBasedDEFG
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% 480
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/DeviceN
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% 481 -- end
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//.packtomark exec .installsystemnames
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% Define printobject and writeobject.
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% These are mostly implemented in PostScript, so that we don't have to
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% worry about interrupts or callbacks when writing to the output file.
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% Define procedures for accumulating the space required to represent
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% an object in binary form.
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% <#refs> <#chars> <obj> -proc- <#refs'> <#chars'>
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/cntdict mark
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/integertype /pop load
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/realtype 1 index
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/marktype 1 index
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/nulltype 1 index
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/booleantype 1 index
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/nametype { length add } .forcebind
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/stringtype 1 index
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/arraytype 0 % replaced below
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/dicttype 0 % replaced below
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.dicttomark def
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/.cntobj {
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dup type //cntdict exch get exec
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} .forcebind def
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cntdict /arraytype {
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dup length % #refs #chars array len
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4 -1 roll add % #chars array #refs+len
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dup 65536 gt {
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/writeobject .systemvar /limitcheck signalerror
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} if
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3 1 roll % #refs+len #chars array
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//.cntobj forall
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} .forcebind put % replace arraytype in cntdict
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cntdict /dicttype {
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/writeobject .systemvar /typecheck signalerror
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} .internalbind put
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/.bosheader { % <top_length> <total_length> <string8> .bosheader
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% <string4|8>
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dup 0 currentobjectformat 127 add put % object format => BOS tag
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2 index 255 le 2 index 65531 le and {
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% Use the short header format: tag toplen(1) totlen(2)
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exch 4 add exch
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0 4 getinterval
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dup 1 5 -1 roll put
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} {
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% Use the long header format: tag 0(1) toplen(2) totlen(4)
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exch 8 add exch
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0 0 4 2 roll .bosobject exch pop exch pop % store with byte swapping
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} ifelse % Stack: shortlen str
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exch dup -8 bitshift exch 255 and % str hibyte lobyte
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currentobjectformat 1 and 0 eq { % lsb first
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exch
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} if
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2 index 3 3 -1 roll put
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1 index 2 3 -1 roll put
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} .forcebind def
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/.writeobjects { % <file> <tag> <array> .writeobjects -
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% Apply the tag early and forget about it.
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(12345678) dup 1 5 -1 roll % file array (...) (...) 1 tag
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put exch % file (.t.) array
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% Calculate the space required for refs and strings.
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% Reject excessively large graphs or graphs with loops.
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0 0 % file (.t.) array #refs #chars
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2 index //.cntobj exec % file (.t.) array #refs #chars
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% Write the header.
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1 index 8 mul add % file (.t.) array #refs #refs*8+#chars
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2 index length exch (12345678) % file (.t.) array #refs len(array) #refs*8+#chars (...)
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//.bosheader exec % file (.t.) array #refs (...)
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4 index exch writestring % file (.t.) array #refs
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% Traverse an array tree in width-first order and place all the
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% arrays that are found on the operand stack. Acyclic graphs are
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% expanded to trees. The top parameter K indicates the number
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% of arrays on a given depth level. At the root level, K is equal to 1.
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mark 2 index 1 % file (.t.) array #refs -mark- array K
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{ dup 0 le { pop exit } if
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dup {
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dup index {
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dup type /arraytype eq {
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exch 1 add
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} {
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pop
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} ifelse
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} forall
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1 sub
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} repeat
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} loop % file (.t.) array #refs -mark- array1 ... arrayN
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counttomark 5 add -4 roll % -mark- array1 ... arrayN file (.t.) array #refs
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% Write the content of the root array
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8 mul % -mark- array1 ... arrayN file (.t.) array #refs*8
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exch dup length 8 mul % -mark- array1 ... arrayN file (.t.) #refs*8 array len(array)*8
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3 1 roll % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 array
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{ 3 index % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 obj (.t.)
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.bosobject % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8 (.t.)
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4 index exch writestring % -mark- array1 ... arrayN file (.t.) len(array)*8 #refs*8
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} forall
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3 -1 roll pop % -mark- array1 ... arrayN file len(array)*8 #refs*8
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% Write the remaining arrays
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counttomark 2 sub -1 3 {
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index { % ... file #refs #str obj
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(1\000345678) .bosobject % ... file #refs #str (...)
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3 index exch writestring % ... file #refs #str
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} forall
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} for
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pop pop % -mark- array1 ... arrayN file
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% Write strings and names.
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counttomark 1 sub -1 1 {
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index {
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dup type /nametype eq {
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.namestring
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} if
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dup type /stringtype eq {
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1 index exch writestring
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} {
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pop
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} ifelse
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} forall
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} for
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cleartomark % Clean up
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} .forcebind def
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/.writeobject {
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3 copy exch
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% We must allocate the array in local VM
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% to avoid a possible invalidaccess.
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.currentglobal //false .setglobal exch 1 array astore exch .setglobal
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//.writeobjects exec pop pop pop
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} .forcebind def
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/printobject { % <obj> <tag> printobject -
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currentobjectformat 0 eq {
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/printobject .systemvar /undefined signalerror
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} if
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(%stdout) (w) file 2 index 2 index //.writeobject exec pop pop
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} odef
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/writeobject { % <file> <obj> <tag> writeobject -
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currentobjectformat 0 eq {
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/writeobject .systemvar /undefined signalerror
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} if
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2 .argindex pop % check # of args
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//.writeobject exec
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} odef
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% Implement binary error message output.
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/.objectprinttest { % <obj> .objectprinttest -
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% This is a pseudo-operator so it will restore the stack
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% if it gets an error.
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mark 0 0 3 .argindex //.cntobj exec cleartomark pop
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} .internalbind def
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/.printerror {
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$error /binary get .languagelevel 2 ge and {
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currentobjectformat 0 ne {
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[ /Error $error /errorname get $error /command get
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% Convert the object with cvs if it isn't printable.
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dup { //.objectprinttest exec } //.internalstopped exec {
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pop 100 string cvs
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} if
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//false ] 250 printobject
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}
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//.printerror % known to be a procedure
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ifelse
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}
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//.printerror % known to be a procedure
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ifelse
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} .internalbind def
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currentdict /cntdict .undef
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% End of level2dict
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end
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.setlanguagelevel
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% undefine things defined in this file and not referenced elsewhere
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[
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/.objectprinttest
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/.bosheader
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/.cntobj
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/.writeobject
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/.writeobjects
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] dup level2dict .undefinternalnames
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systemdict .undefinternalnames
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