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Mini Shell
Mini Shell
% Copyright (C) 2001-2019 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. The procedures for composite objects (arrays
% and dictionaries) leave different results on the stack:
% <#refs> <#chars> <simple_obj> -proc- <#refs> <#chars>
% <#refs> <#chars> <array|dict> -proc- <array|dict> <#refs> <#chars>
% This is required so that .writeobjects can also accumulate the actual
% list of composite objects to write in the binary object sequence.
/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 //null
/dicttype //null
.dicttomark def
/.cntobj { % <<arguments and results as for procedures in cntdict>>
dup type //cntdict exch get exec
} .bind def
cntdict /arraytype {
dup dup length 5 -1 roll add 4 2 roll { //.cntobj exec } forall
} bind put
cntdict /dicttype {
WRITEDICTS {
dup dup length 2 mul 5 -1 roll add 4 2 roll {
% We have to use .execn here, rather than simply rolling the
% value under the top elements, because key might involve arrays
% or dictionaries.
cvlit {//.cntobj exec} exch 2 .execn //.cntobj exec
} forall
} {
/writeobject .systemvar /typecheck signalerror
} ifelse
} bind put
/w2dict mark
/nametype { 2 copy .writecvs pop } bind
/stringtype 1 index
.dicttomark def
/.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
} .bind def
/.writeobjects { % <file> <tag> <array> .writeobjects -
mark exch
% Count the space required for refs and strings.
dup length 0 3 -1 roll
% Stack: file tag -mark- #refs #chars array
dup 4 1 roll { //.cntobj exec } forall
% Write the header.
% Stack: file tag -mark- array1 ... (array|dict)N #refs #chars
counttomark 3 add -2 roll 4 1 roll
% Stack: -mark- array1 ... (array|dict)N tag #refs #chars file
dup counttomark 1 sub index length
4 index 3 bitshift 4 index add
(xxxxxxxx) //.bosheader exec writestring
% Write the objects per se.
3 1 roll pop
counttomark 1 sub index length 3 bitshift exch
3 bitshift
% Stack: -mark- array1 ... (array|dict)N tag file ref# char#
counttomark 4 sub {
counttomark -1 roll dup 6 1 roll
% Stack: ... objN tag file ref# char# objN
dup type /dicttype eq { % can't be first object
{ 5 1 roll (x\000xxxxxx) .bosobject
3 index exch writestring
4 -1 roll (x\000xxxxxx) .bosobject
3 index exch writestring
} forall
} {
{ (x\000xxxxxx) .bosobject
dup 1 6 index put
3 index exch writestring
4 -1 roll pop 0 4 1 roll % clear tag
} forall
} ifelse
} repeat
% Write the strings and names.
pop pop exch pop
% Stack: -mark- array1 ... array|dictN file
counttomark 1 sub {
counttomark -1 roll {
% The counting pass ensured that the keys and values
% of any dictionary must be writable objects.
% Hence, we are processing a dictionary iff
% the next-to-top stack element is not a file.
1 index type /filetype ne {
exch 2 index exch dup type //w2dict exch .knownget
{ exec } { pop } ifelse pop
} if
dup type //w2dict exch .knownget { exec } { pop } ifelse
} forall
} repeat
% Clean up.
% Stack: -mark- file
pop pop
} .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 { % <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
} 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
currentdict /w2dict .undef
% End of level2dict
end
.setlanguagelevel
% undefine things defined in this file and not referenced elsewhere
[
/.objectprinttest
/.bosheader
/.cntobj
/.writeobject
/.writeobjects
]
{level2dict exch .forceundef} forall
Zerion Mini Shell 1.0