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Current File : /usr/share/ghostscript/Resource/Init/gs_init.ps
% Copyright (C) 2001-2018 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 the interpreter.
% When this is run, systemdict is still writable.

% Comment lines of the form
%	%% Replace <n> <file(s)>
% indicate places where the next <n> lines should be replaced by
% the contents of <file(s)>, when creating a single merged init file.
%
% For reasons not clear to me, some cases of %% are being treated as
% DSC comments when (and only when) the resource files are disk based
% This can kill DSC parsing for pdfwrite at least, so avoid using
% double % comments in this file.

% The interpreter can call out to PostScript code.  All procedures
% called in this way, and no other procedures defined in these
% initialization files, have names that begin with %, e.g.,
% (%Type1BuildChar) cvn.

% Interpreter library version number
% NOTE: the interpreter code requires that the first non-comment token
% in this file be an integer, and that it match the compiled-in version!
925

% Check the interpreter revision.
dup revision ne
 { (gs: Interpreter revision \() print revision 10 string cvs print
   (\) does not match gs_init.ps revision \() print 10 string cvs print
   (\).\n) print flush //null 1 .quit
 }
if pop

% Acquire userdict, and set its length if necessary.
/userdict where
 { pop userdict maxlength 0 eq }
 { //true }
ifelse
systemdict exch
 {		% userdict wasn't already set up by iinit.c.
   dup /userdict
   currentdict dup 200 .setmaxlength		% userdict
   .forceput			% userdict is local, systemdict is global
 }
if begin

% Define dummy local/global operators if needed.
systemdict /.setglobal known
 { //true .setglobal
 }
 { /.setglobal { pop } bind def
   /.currentglobal { //false } bind def
   /.gcheck { pop //false } bind def
 }
ifelse

% Define .languagelevel if needed.
systemdict /.languagelevel known not { /.languagelevel 1 def } if

% Optionally choose a default paper size other than U.S. letter.
% The default page size for many devices is set at compile time to
% letter, but this can be changed to A4 although this is rarely done.
% Some devices such as bbox have a different default page size,
% and should not be set to A4 or letter.
% When ghostscript is used in countries that use the international
% standard page size A4 rather than US letter, the page size of
% devices that default to letter or A4 can be changed by setting
% DEFAULTPAPERSIZE.
% /DEFAULTPAPERSIZE (a4) def

% Turn on array packing for the rest of initialization.
//true setpacking

% Define the old MS-DOS EOF character as a no-op.
% This is a hack to get around the absurd habit of MS-DOS editors
% of adding an EOF character at the end of the file.
<1a> cvn { } def

% Acquire the debugging flags.
currentdict /DEBUG known   /DEBUG exch def

% if DEBUG is set, set ALL of the subset debugging flags
mark	% '[' isn't defined yet
  /CCFONTDEBUG		% Compiled Fonts
  /CFFDEBUG		% CFF Fonts
  /CMAPDEBUG		% CMAP
  /DOCIEDEBUG		% CIE color
  /EPSDEBUG		% EPS handling
  /FAPIDEBUG		% Font API
  /INITDEBUG		% Initialization
  /PDFDEBUG		% PDF Interpreter
  /PDFWRDEBUG		% PDF Writer
  /SETPDDEBUG		% setpagedevice
  /TTFDEBUG		% TTF Fonts
  /VGIFDEBUG		% ViewGIF
  /VJPGDEBUG		% ViewJPEG
  /RESMPDEBUG		% Resource map
counttomark array astore exch pop % ']' isn't defined yet
{ dup currentdict exch known DEBUG or def } forall

currentdict /PDFSTEP known /PDFSTEP exch def
% if PDFSTEP is on, turn on PDFDEBUG
PDFSTEP { /PDFDEBUG //true def } if

currentdict /PDFSTOPONERROR known /PDFSTOPONERROR exch def
currentdict /PDFSTOPONWARNING known {/PDFSTOPONWARNING true def /PDFSTOPONERROR true def}{/PDFSTOPONWARNING false def} ifelse
currentdict /PDFNOCIDFALLBACK known /PDFNOCIDFALLBACK exch def
/.bind /bind load def

  /VMDEBUG
    INITDEBUG {{print mark
            systemdict /level2dict known
             { .currentglobal dup //false .setglobal vmstatus
               //true .setglobal vmstatus 3 -1 roll pop
               6 -2 roll pop .setglobal
             }
             { vmstatus 3 -1 roll pop
             }
            ifelse usertime 16#fffff and counttomark
              { ( ) print (           ) cvs print }
            repeat pop
            ( ) print systemdict length (    ) cvs print
            ( ) print countdictstack (  ) cvs print
            ( <) print count (    ) cvs print (>\n) print flush
          }}
          {{pop
          }}
         ifelse
  .bind def

% This was a debugging switch removed in 9.22, no other software
% should have had any regard for it, and even if testing its value
% should have checked its existence first. However pstotext, an
% ancient and no longer maintained piece of softare, did check
% its value unconditionally. So we retain this key in the dictionary
% purely for backward compatibility.
/NOBIND false def

currentdict /BATCH known   /BATCH exch def
currentdict /DELAYBIND known   /DELAYBIND exch def
currentdict /DOINTERPOLATE .knownget { { -1 } { 0 } ifelse /InterpolateControl exch def } if
currentdict /ESTACKPRINT known   /ESTACKPRINT exch def
currentdict /FAKEFONTS known   /FAKEFONTS exch def
currentdict /FIXEDMEDIA known   /FIXEDMEDIA exch def
currentdict /FIXEDRESOLUTION known   /FIXEDRESOLUTION exch def
currentdict /LOCALFONTS known   /LOCALFONTS exch def
currentdict /JOBSERVER known   /JOBSERVER exch def
currentdict /NOCACHE known   /NOCACHE exch def
currentdict /NOCCFONTS known   /NOCCFONTS exch def
currentdict /NOCIE known   /NOCIE exch def
currentdict /NOPSICC known   /NOPSICC exch def
currentdict /NODISPLAY known   not /DISPLAYING exch def
currentdict /NOFONTMAP known   /NOFONTMAP exch def
currentdict /NOFONTPATH known   /NOFONTPATH exch def
currentdict /NOGC known   /NOGC exch def
currentdict /NOINTERPOLATE .knownget { /InterpolateControl 0 def } if
currentdict /NOMEDIAATTRS known /NOMEDIAATTRS exch def
currentdict /NOOUTERSAVE known   /NOOUTERSAVE exch def
currentdict /NOPAGEPROMPT known   /NOPAGEPROMPT exch def
currentdict /NOPAUSE known   /NOPAUSE exch def
currentdict /NOPLATFONTS known   /NOPLATFONTS exch def
currentdict /NOPROMPT known   /NOPROMPT exch def
currentdict /NOTRANSPARENCY known   /NOTRANSPARENCY exch def
currentdict /DOPS known   /DOPS exch def
currentdict /NOSUBSTDEVICECOLORS known   /NOSUBSTDEVICECOLORS exch def
% The default value of ORIENT1 is true, not false.
currentdict /ORIENT1 known not { /ORIENT1 //true def } if
currentdict /OSTACKPRINT known   /OSTACKPRINT exch def
currentdict /OUTPUTFILE known	% obsolete
 { /OutputFile /OUTPUTFILE load def
   currentdict /OUTPUTFILE .undef
 } if
currentdict /QUIET known   /QUIET exch def
% DELAYSAFER is effectively the same as newer NOSAFER
currentdict /DELAYSAFER known { /DELAYSAFER //true def /NOSAFER //true def } if
/SAFER currentdict /NOSAFER known {
  //false
} {
  currentdict /SAFER known
  currentdict /PARANOIDSAFER known or	% PARANOIDSAFER is equivalent
}
ifelse def

/SAFERERRORS
currentdict /NOSAFERERRORS known
{
  //false
}
{
  currentdict /SAFERERRORS known
} ifelse def

currentdict /SHORTERRORS known   /SHORTERRORS exch def
currentdict /TTYPAUSE known   /TTYPAUSE exch def
currentdict /WRITESYSTEMDICT known   /WRITESYSTEMDICT exch def
currentdict /RENDERTTNOTDEF known /RENDERTTNOTDEF exch def
currentdict /SCANCONVERTERTYPE known
{
  currentdict /SCANCONVERTERTYPE get .setscanconverter
} if

% We rely on PSFitPage to actually implement EPSFitPage
% But we need EPSCrop to be true, to actually issue a PageSize request, so set it here
% in case the user forgets.
currentdict /EPSFitPage known { /PSFitPage //true def /EPSCrop //true def} if
% This is a "convenience" option that sets a combination of EPSFitPage, PDFFitPage and PSFitPage
currentdict /FitPage known { /EPSFitPage //true def /EPSCrop //true def /PDFFitPage //true def /PSFitPage //true def } if

% Acquire environment variables.
currentdict /DEVICE known not
 { (GS_DEVICE) getenv { /DEVICE exch def } if } if

(START) VMDEBUG

% Open the standard files, so they will be open at the outermost save level.
(%stdin) (r) file pop
(%stdout) (w) file pop
(%stderr) (w) file pop

/.currentuserparams where {
  pop mark
        % The Adobe implementations appear to have very large maximum
        % stack sizes.  This turns out to actually make a difference,
        % since some badly-behaved files include extremely long procedures,
        % or construct huge arrays on the operand stack.
        % We reset the stack sizes now so that we don't have to worry
        % about overflowing the (rather small) built-in stack sizes
        % during initialization.
  /MaxDictStack 500
  /MaxExecStack 5000
  /MaxOpStack 300000
  .dicttomark .setuserparams
} if

% Define a procedure for skipping over an unneeded section of code.
% This avoids allocating space for the skipped procedures.
% We can't use readline, because that imposes a line length limit.
/.skipeof	% <string> .skipeof -
 { currentfile exch 1 exch .subfiledecode flushfile
 } .bind def

% Define procedures to assist users who don't read the documentation.
userdict begin
/help
 { (Enter PostScript commands.  '(filename) run' runs a file, 'quit' exits.\n)
   print flush
 } .bind def
end

% Define =string, which is used by some PostScript programs even though
% it isn't documented anywhere.
% Put it in userdict so that each context can have its own copy.
userdict /=string 256 string put

% Print the greeting.

/printgreeting
 { mark
   product (GPL Ghostscript) search
    { pop pop pop
      (This software comes with NO WARRANTY: see the file PUBLIC for details.\n)
    }
    { pop
    }
   ifelse
   (\n) copyright
   (\)\n) revisiondate 10 mod revisiondate 10 idiv 10 mod (-)
   revisiondate 100 idiv 10 mod revisiondate 1000 idiv 10 mod (-)
   revisiondate 10000 idiv ( \()
   revision 10 mod
   revision 100 mod 10 idiv (.)
   revision 100 idiv ( )
   product
   counttomark
    { (%stdout) (w) file exch 0 .writecvp
    } repeat pop
 } .bind def

QUIET not { printgreeting flush } if

% Define a special version of def for making operator procedures.
/obind {	% <name> <proc> obind <name> <oper>
  1 index exch .makeoperator
} .bind def
/odef {		% <name> <proc> odef -
  1 index exch .makeoperator def
} .bind def

% Define a special version of def for storing local objects into global
% dictionaries.  Like .forceput, this exists only during initialization.
/.forcedef {		% <key> <value> .forcedef -
  1 .argindex pop	% check # of args
  currentdict 3 1 roll .forceput
} .bind odef

% Define procedures for accessing variables in systemdict and userdict
% regardless of the contents of the dictionary stack.
/.systemvar {		% <name> .systemvar <value>
  //systemdict exch get
} .bind odef
/.systemexec {
  .systemvar exec
} .bind odef
/.userdict {		% - .userdict <dict>
  /userdict .systemvar
} .bind odef
/.uservar {		% <name> .uservar <value>
  .userdict exch get
} .bind odef

% If we're delaying binding, remember everything that needs to be bound later.
DELAYBIND
{
   SAFER {
       (\n *** WARNING - you have selected SAFER, indicating you want Ghostscript\n) print
       (               to execute in a safer environment, but at the same time\n) print
       (               have selected DELAYBIND. Unless you use this option with\n) print
       (               care \(and specifically, remember to call .bindnow\) it is\n) print
       (               possible that malicious code may be able to evade the\n) print
       (               limited security offered by the SAFER option.\n) print
   } if
   .currentglobal //false .setglobal
   systemdict /.delaybind 2000 array .forceput
   .setglobal
   userdict /.delaycount 0 put
        % When we've done the delayed bind, we want to stop saving.
        % Detect this by the disappearance of .delaybind.
   /bind
    { /.delaybind .systemvar dup length 0 ne
       { .delaycount 2 index put
         .userdict /.delaycount .delaycount 1 add put
       }
       { pop /.bind cvx exec
       }
      ifelse
    } .bind def
} if

%**************** BACKWARD COMPATIBILITY ****************
/hwsizedict mark /HWSize //null .dicttomark readonly def
/copyscanlines {		% <device> <y> <string> copyscanlines <substr>
  0 3 1 roll 3 index //hwsizedict .getdeviceparams
  exch pop exch pop aload pop 3 2 roll
  0 exch //null exch .getbitsrect exch pop
} bind odef
currentdict /hwsizedict .undef
/getdeviceprops
 { //null .getdeviceparams
 } bind odef
/.putdeviceprops
 { //null //true counttomark 1 add 3 roll .putdeviceparams
   dup type /booleantype ne
    { dup mark eq { /unknown /rangecheck } if
      counttomark 4 add 1 roll cleartomark pop pop pop
      /.putdeviceprops .systemvar exch signalerror
    }
   if
 } bind odef
/.currentfilladjust { .currentfilladjust2 pop } bind odef
/.setfilladjust { dup .setfilladjust2 } bind odef
/.writecvs { 0 .writecvp } bind odef
%**************** DEPRECATED PROCEDURES ****************
%**************** DO NOT USE THESE IN NEW CODE ****************
/max { .max } bind def		% use .max instead
/min { .min } bind def		% use .min instead
/unread /.unread load def	% use .peekstring instead
%**************** END OF BACKWARD COMPATIBILITY SECTION ****************

% Utility for removing all entries from a dictionary
/.PurgeDict   % <dict> .PurgeDict -
{ { //true
    1 index { pop exch pop //false exit
    } forall
    { exit
    } if
    1 index exch undef
  } loop
  pop
} bind def

% Define predefined procedures substituting for operators,
% in alphabetical order.

userdict /#copies 1 put
% Adobe implementations don't accept /[ or /], so we don't either.
([) cvn
        /mark load def
(]) cvn
        {counttomark array astore exch pop} odef
% .beginpage is redefined if setpagedevice is present.
/.beginpage { } odef
% In LanguageLevel 3, copypage erases the page.
/copypage {
        .languagelevel 3 ge
        dup { 0 } { 1 } ifelse .endpage .doneshowpage {
          .currentnumcopies 1 index .outputpage
          (>>copypage, press <return> to continue<<\n) .confirm
          dup { erasepage } if
        } if pop
    systemdict /..page_default_spaces .knownget { //.PurgeDict exec } if
    .beginpage
} odef
/currentmatrix {
        dup type /arraytype ne
        { /currentmatrix load  /typecheck signalerror } if
        dup length 6 ne
        { /currentmatrix load  /rangecheck signalerror } if
        .currentmatrix 6 .argindex astore pop
} odef
% .currentnumcopies is redefined in Level 2.
/.currentnumcopies { #copies } odef
/setcolorscreen where { pop		% not in all Level 1 configurations
   /currentcolorscreen
        { .currenthalftone
           { { 60.0 exch 0.0 exch 3 copy 6 copy }	% halftone - not possible
             { 3 copy 6 copy }			% screen
             { }				% colorscreen
           }
          exch get exec
        } odef
} if
/currentscreen
        { .currenthalftone
           { { 60.0 exch 0.0 exch }			% halftone - not possible
             { }				% screen
             { 12 3 roll 9 { pop } repeat }	% colorscreen
           }
          exch get exec
        } odef
/.echo /echo load def
userdict /.echo.mode //true put
/echo	{dup /.echo.mode exch store .echo} odef
/.eexec_param_dict mark
  /eexec //true
  /seed 55665
.dicttomark readonly def
/eexec {
        % Rebind .currentresourcefile if it is the source for the eexec.
  dup //.eexec_param_dict //filterdict /eexecDecode get exec
  cvx exch .currentresourcefile eq
  //systemdict begin { {exec} .execasresource } { exec } ifelse
        % Only pop systemdict if it is still the top element,
        % because this is apparently what Adobe interpreters do.
  currentdict //systemdict eq { end } if
} odef
% .endpage is redefined if setpagedevice is present.
/.endpage { 2 ne } odef
% erasepage mustn't use gsave/grestore, because we call it before
% the graphics state stack has been fully initialized.
/erasepage
        { /currentcolor where
           { pop currentcolor currentcolorspace { setcolorspace setcolor } }
           { /currentcmykcolor where
              { pop currentcmykcolor { setcmykcolor } }
              { currentrgbcolor { setrgbcolor } }
             ifelse
           }
          ifelse
          currentoverprint //false setoverprint 1 setgray .fillpage setoverprint
          exec
        } odef
% To satisfy the Genoa FTS, executive must be a procedure, not an operator.
/executive
        { { prompt
             { (%statementedit) (r) .systemvmfile } stopped
             { pop pop $error /errorname get /undefinedfilename eq
                { .clearerror exit } if		% EOF
               /handleerror .systemvar exec //null		% ioerror??
             }
            if
            cvx { .runexec } .execute pop
          } loop
        } bind def
/filter
        { //filterdict 1 .argindex .knownget
           { exch pop exec }
           { /filter .systemvar /undefined signalerror }
          ifelse
        } odef
% handleerror procedure as mentioned in the "Operators" section of the PLRM Section 8.2
% This invokes the handleerror procedure from errordict (unless we are running under a
% JOBSERVER where we want to always use a defined error handler (many error handlers in
% 'wild' PostScript files are broken and don't indicate the error in any useful fashion).
%
% We run the handleerror procedure using .internalstopped so that broken error handlers
% won't cause nested errors (Unexpected Error conditions).
/handleerror
        JOBSERVER {
          { /.GShandleerror .systemvar .internalstopped pop } bind % always use .GShandleerror.
        } {
          { /errordict .systemvar /handleerror get .internalstopped pop } bind % PLRM standard errorhandling
        } ifelse def
/identmatrix [1.0 0.0 0.0 1.0 0.0 0.0] readonly def
/identmatrix {
        dup type /arraytype ne { /identmatrix load  /typecheck signalerror } if
        dup length 6 ne { /identmatrix load  /rangecheck signalerror } if
        dup 0 //identmatrix putinterval
} odef
/languagelevel 1 def		% gs_lev2.ps may change this
/makeimagedevice { //false makewordimagedevice } odef
/matrix	{ 6 array identmatrix } odef
% .promptmsg is redefined if the interpreter includes readline support.
/.promptmsg {
        (GS) print
        count 0 ne { (<) print count =only } if
        (>) print flush
} bind def
/prompt	{ flush flushpage NOPROMPT not { .promptmsg } if } bind def
/pstack	{ 0 1 count 3 sub { index == } for } bind def
/putdeviceprops
        { .putdeviceprops { erasepage } if } odef
/quit	{ /quit load 0 .quit } odef
/run	{ dup type /filetype ne { (r) .systemvmfile } if
                % We must close the file when execution terminates,
                % regardless of the state of the stack,
                % and then propagate an error, if any.
          cvx //null {.runexec} .errorexec
        } odef
% Execute a file.
% Level 2 uses 2 .stop to clear the e-stack for a successful startjob:
% we detect that here, since we need to handle this even if we start out
% without job control in effect.
%
% What we push on the e-stack is the following to be executed in this order:
%	<lit-file|fileproc> .runexec1 <lit-file|fileproc> .runexec2
/.runexec1 {		% <file|fileproc> .runexec1 -
  dup type /filetype ne { cvx exec } if
  cvx //null 2 .stopped
        % If we got back here from a startjob, just keep going.
        % startjob replaces the null on the o-stack with a procedure
        % to be executed when we get back here.
  dup //null ne { exec //true } { pop //false } ifelse
} bind def
/.runexec2 {		% <continue> <file|fileproc> .runexec2 -
  exch {
    .runexec
  } {
    dup type /filetype ne { cvx exec } if
    closefile
  } ifelse
} bind def
/.runexec {		% <file|fileproc> .runexec -
  cvlit /.runexec1 cvx 1 index /.runexec2 cvx 4 .execn
} bind def
% The following is only for compatibility with Adobe interpreters.
/setdash {
        0 .argindex type dup /integertype eq exch /realtype eq or not {
          /setdash .systemvar /typecheck signalerror
        } if
        //setdash
} odef
/setdevice
  {
    .setdevice
      {
        mark
          { 		% Reset the halftone since the device may differ
            currenthalftone
            dup type /dicttype eq
              { sethalftone }
              { pop }
            ifelse
          }
        stopped
        cleartomark
        erasepage
      }
    if
  }
odef
/setlinecap {
        dup 2 gt { /setlinecap .systemvar /rangecheck signalerror } if
        .setlinecap
} odef
/setlinejoin {
        dup 2 gt { /setlinejoin .systemvar /rangecheck signalerror } if
        .setlinejoin
} odef
/setmatrix {
        dup type /arraytype ne {
          dup type /packedarraytype ne {
            /setmatrix load  /typecheck signalerror
          } if
        } if
        dup length 6 ne { /setmatrix load  /rangecheck signalerror } if
        dup aload pop .setmatrix pop
} odef
/showpage {
        0 .endpage .doneshowpage {
          .currentnumcopies //true .outputpage
          (>>showpage, press <return> to continue<<\n) .confirm
          % Uncomment the following line, and use a Memento build to track
          % blocks that are created and not destroyed between each successive
          % page.
          % 2 .vmreclaim .mementolistnewblocks
          initgraphics
          currentoverprint //false setoverprint 1 setcolor
          .fillpage
          setoverprint 0 setcolor
        }
        { initgraphics } ifelse
    systemdict /..page_default_spaces .knownget { //.PurgeDict exec } if
    .beginpage
} odef
% Code output by Adobe Illustrator relies on the fact that
% `stack' is a procedure, not an operator!!!
/stack	{ 0 1 count 3 sub { index = } for } bind def
/start	{ BATCH { //null 0 .quit } { executive } ifelse } def
% Internal uses of stopped that aren't going to do a stop if an error occurs
% should use .internalstopped to avoid setting newerror et al.
/.internalstopped { //null 1 .stopped //null ne } bind def
/store {	% Don't alter operands before completing.
        1 .argindex where { 2 index 2 index put pop pop } { def } ifelse
} odef
/.typenames mark .typenames counttomark packedarray exch pop def
/type {
        //.typenames .type
} odef
currentdict /.typenames .undef
% When running in Level 1 mode, this interpreter is supposed to be
% compatible with PostScript "version" 54.0 (I think).
/version (54.0) readonly def
/.wheredict 10 dict def
/.where /where load def
/where {
        //.wheredict 1 .argindex .knownget { exec } { .where } ifelse
} odef

% internaldict is defined in systemdict, but the dictionary is allocated
% in local VM.  However, the procedure must be global, since it is an
% "operator" and must be bind-able into global procedures.
% We make a procedure for creating it, since we must create a new one
% for each context with private local VM.
/.makeinternaldict {
  .currentglobal //true .setglobal
    [ /dup .systemvar 1183615869 /eq .systemvar
        [ /pop .systemvar //null ] cvx
        //false .setglobal
        dup 1 10 dict .forceput	% proc is global, dict is local
        //true .setglobal
        [ /internaldict /cvx .systemvar /invalidaccess /signalerror cvx ] cvx
      /ifelse .systemvar
    ] cvx executeonly
  exch .setglobal
} odef
systemdict /internaldict dup .makeinternaldict .makeoperator
.forceput		% proc is local, systemdict is global

% Define some additional built-in procedures (beyond the ones defined by
% the PostScript Language Reference Manual).
% Warning: these are not guaranteed to stay the same from one release
% to the next!
/concatstrings	%	(str1) (str2) concatstrings (str1str2)
        { exch dup length 2 index length add string	% str2 str1 new
          dup dup 4 2 roll copy		% str2 new new new1
          length 4 -1 roll putinterval
        } bind def
/copyarray
        { dup length array copy } bind def
% Copy a dictionary per the Level 2 spec even in Level 1.
/.copydict		% <fromdict> <todict> .copydict <todict>
        { dup 3 -1 roll { put dup } forall pop } bind def
/copystring
        { dup length string copy } bind def
/findlibfile {
  .systemvmlibfile { dup .filename pop exch //true } { //false } ifelse
} odef
/.growdictlength	% get size for growing a dictionary
        { length 3 mul 2 idiv 1 add
        } bind def
/.growdict		% grow a dictionary
        { dup .growdictlength .setmaxlength
        } bind def
/.growput		% put, grow the dictionary if needed
        { 2 index length 3 index maxlength eq
           { 3 copy pop known not { 2 index .growdict } if
           } if
          put
        } bind def
% .localvmarray may be an operator: see zsysvm.c.
/.localvmarray where {
  pop
} {
  /.localvmarray {
    .currentglobal //false .setglobal
    exch array exch .setglobal
  } bind def
} ifelse
/.localvmdict where {
  pop
} {
  /.localvmdict {
    .currentglobal //false .setglobal
    exch dict exch .setglobal
  } bind def
} ifelse
/.packtomark
        { counttomark packedarray exch pop } bind def
/ppstack
        { 0 1 count 3 sub { index === } for } bind def
/runlibfile
        {		% We don't want to bind 'run' into this procedure,
                        % since run may get redefined.
          findlibfile
           { exch pop /run .systemvar exec }
           { /undefinedfilename signalerror }
          ifelse
        } bind def
/selectdevice
        { finddevice setdevice .setdefaultscreen } bind def
/signalerror		% <object> <errorname> signalerror -
        { /errordict .systemvar exch get exec } bind def
/signaloperror {	% <object> <errorname> signaloperror -
    % Same as signalerror, except that if we are inside a pseudo-operator
    % or .errorexec, we use its error object, just as errors generated by
    % real operators do.
    /errordict .systemvar exch get
    .finderrorobject { 3 -1 roll pop exch } if
    exec
} bind def

% Define the =[only] procedures.  Also define =print,
% which is used by some PostScript programs even though
% it isn't documented anywhere.
/write=only {
        .writecvs
} bind def
/write= {
        1 index exch write=only (\n) writestring
} bind def
/=only	{ (%stdout) (w) file exch write=only } bind def
/=	{ =only (\n) print } bind def
/=print	/=only load def
% Temporarily define == as = for the sake of runlibfile0.
/== /= load def

% The following procedures are documented.
/copydevice {		% <device> copydevice <newdevice>
  //false .copydevice2
} odef
/finddevice {		% <devicename> finddevice <device>
  /devicedict .systemvar exch get
  dup 1 get //null eq {
                % This is the first request for this type of device.
                % Create a default instance now.
                % Stack: [proto null]
    .currentglobal //true .setglobal exch
    dup dup 0 get copydevice 1 exch put
    exch .setglobal
  } if 1 get
} bind def
/findprotodevice {	% <devicename> findprotodevice <protodevice>
  /devicedict .systemvar exch get 0 get
} bind def

% Run a resource file.  This allows us to distinguish resource objects
% from objects coming from input files.
userdict /.currentresourcefile //null put
/.execasresource {	% <file> <proc|runfile> .execasresource -
  /stopped .systemvar
  /.currentresourcefile .uservar
                % Stack: file proc -stopped- currfile
  .userdict /.currentresourcefile 5 index cvlit put
  2 .execn		% stopped <file>
  .userdict /.currentresourcefile 3 -1 roll put
  { stop } if
} bind def
/.runresource {		% <file> .runresource -
  { /run .systemvar exec } .execasresource
} bind def

% Define auxiliary procedures needed for the above.
/shellarguments		% -> shell_arguments true (or) false
        { /ARGUMENTS where
           { /ARGUMENTS get dup type /arraytype eq
              { aload pop /ARGUMENTS //null store //true }
              { pop //false }
             ifelse }
           { //false } ifelse
        } bind def
/.confirm {
  DISPLAYING NOPAUSE not TTYPAUSE or and {
        % Print a message (unless NOPAGEPROMPT or NOPROMPT is true)
        % and wait for the user to type something.
        % If the user just types a newline, flush it.
    NOPAGEPROMPT NOPROMPT or { pop } { print flush } ifelse
    .confirmread
  } {
    pop
  } ifelse
} bind def
/.confirmread {
  TTYPAUSE {
    (/dev/tty) (r) file dup read pop pop closefile
  } {
    .echo.mode //false echo
    (%stdin) (r) file dup read {
      dup (\n) 0 get eq { pop pop } { unread } ifelse
    } {
      pop
    } ifelse echo
  } ifelse
} bind def

% Define the procedure used by .runfile, .runstdin and .runstring
% for executing user input.
% This is called with a procedure or executable file on the operand stack.
/.execute {		% <obj> .execute <stopped>
  stopped $error /newerror get and
   { /handleerror .systemvar exec flush //true } { //false } ifelse
} bind def
/execute {		% <obj> execute -
  .execute pop
} odef
% Define an execute analogue of runlibfile0.
/execute0 {		% <obj> execute0 -
  .execute { /execute0 cvx 1 .quit } if
} bind def
% Define the procedure that the C code uses for running files
% named on the command line.
/.runfile {
  { runlibfile } execute0
} def
% Define the procedure that the C code uses for running piped input.
% We don't use the obvious { (%stdin) run }, because we want the file to be
% reopened if a startjob does a restore.
/.runstdin {
  { { (%stdin) (r) file cvx } .runexec } execute0
} bind def
% Define the procedure that the C code uses for running commands
% given on the command line with -c.  We turn the string into a file so that
% .runexec can do the right thing with a startjob.
/.runstring {
  0 0 .systemvmstring .systemvmSFD cvx { .runexec } execute0
} bind def

% Define the procedure that the C code uses to set up for executing
% a string that may be received in pieces.
%
% Immediate evaluation doesn't work on operators (like .needinput)
% so calling .runstringbegin will throw an undefined error if we
% undefined .needinput so it cannot be accessed outside the init
% code. But, we can store the operator in an array, use immediate
% evaluation on the array to get the operator, then undefined the
% array (and because they are both of the same name, the operator
% get undefined too).
% This prevents random Postscript from erroneously calling .needinput
% and forcing the interpreter into an invalid state.
/.needinput
1 .systemvmarray dup 0 /.needinput load put
def
/.runstringbegin {
  1 .systemvmarray dup 0 //.needinput 0 get put cvx	% { .needinput } in systemvm
  0 0 .systemvmstring .systemvmSFD cvx .runexec
} bind executeonly def

% Define a special version of runlibfile that aborts on errors.
/runlibfile0
        { cvlit dup dup /.currentfilename exch def
           { findlibfile not { stop } if }
          stopped
           { (Can't find \(or open\) initialization file ) print
             .currentfilename == flush /runlibfile0 cvx 1 .quit
           } if
          exch pop cvx
          { stopped } 0 get 3 -1 roll 2 array astore cvx exec
          /.currentfilename exch store
           { (While reading ) print .currentfilename print (:\n) print flush
             /handleerror .systemvar exec /runlibfile0 1 .quit
           } if
        } bind def
% Temporarily substitute it for the real runlibfile.
/.runlibfile /runlibfile load def
/runlibfile /runlibfile0 load def

% Create the error handling machinery.
% Define the standard error handlers.
% The interpreter has created the ErrorNames array.
/.unstoppederrorhandler	% <command> <errorname> .unstoppederrorhandler -
 {	% This is the handler that gets used for recursive errors,
        % or errors outside the scope of a 'stopped'.
   2 copy SHORTERRORS
    { (%%[ Error: ) print =only flush
      (; OffendingCommand: ) print =only ( ]%%) =
    }
    { (Unrecoverable error: ) print =only flush
      ( in ) print = flush
      count 2 gt
       { (Operand stack:\n  ) print
         count 1 sub -1 2 { (  ) print index =only flush } for
         () = flush
       } if
    }
   ifelse
   -1 0 1 //ErrorNames length 1 sub
    { dup //ErrorNames exch get 3 index eq
       { not exch pop exit } { pop } ifelse
    }
   for exch pop .quit
 } bind executeonly def
/.errorhandler		% <command> <errorname> .errorhandler -
  {		% Detect an internal 'stopped'.
    1 .instopped { //null eq { pop pop stop } if } if
    (I) //false .setdebug
    $error /.inerror get 1 .instopped { pop } { pop //true } ifelse
     { .unstoppederrorhandler
     } if	% detect error recursion
    $error /globalmode .currentglobal //false .setglobal put
    $error /.inerror //true put
    $error /newerror //true put
    $error exch /errorname exch put
    $error exch /command exch put
    $error /errorinfo known not { $error /errorinfo //null put } if
    $error /recordstacks get $error /errorname get /VMerror ne and
     {		% Attempt to store the stack contents atomically.
       count array astore dup $error /ostack 4 -1 roll
       % Grab the execstack, then remove to two elements that are from
       % this error handler (not interesting).
       countexecstack array execstack dup length 2 sub 0 exch getinterval
       $error /estack 3 -1 roll
       countdictstack array dictstack $error /dstack 3 -1 roll
       put put put aload pop
     }
     { $error /dstack .undef
       $error /estack .undef
       $error /ostack .undef
     }
    ifelse
    $error /position currentfile status
     { currentfile { fileposition } .internalstopped { pop //null } if
     }
     {		% If this was a scanner error, the file is no longer current,
                % but the command holds the file, which may still be open.
       $error /command get dup type /filetype eq
        { { fileposition } .internalstopped { pop //null } if }
        { pop //null }
       ifelse
     }
    ifelse put
                % During initialization, we don't reset the allocation
                % mode on errors.
    $error /globalmode get $error /.nosetlocal get and .setglobal
    $error /.inerror //false put
    stop
  } bind executeonly def
% Define the standard handleerror.  We break out the printing procedure
% (.printerror) so that it can be extended for binary output
% if the Level 2 facilities are present.
  /.printerror
   { $error begin newerror
     {
       /command load errorname SHORTERRORS
        { (%%[ Error: ) print =only flush
          (; OffendingCommand: ) print =only
          errorinfo dup //null eq {
            pop
          } {
            (;\nErrorInfo:) print
            dup type /arraytype eq
              { { ( ) print =only } forall }
              { ( ) print =only }
            ifelse
          } ifelse
          ( ]%%) = flush
        }
        { (Error: ) print ==only flush
          ( in ) print ==only flush
          errorinfo dup //null eq {
            pop
          } {
            (\nAdditional information: ) print ==only flush
          } ifelse
          .printerror_long
        }
       ifelse
       .clearerror flush
     }
     { % newerror is //false, test to see if user has set handleerror to a different
       % routine, if so execute it, otherwise, just return.  This code deals with the
       % Genoa issue of setting /handleerror, and then calling it, without an error
       % being set.  We were erroring in this case, due to /command load failing.

        //JOBSERVER {
            /errordict .systemvar /handleerror get /.GShandleerror .systemvar ne
        } {
            //false
        } ifelse
         { /errordict .systemvar begin /handleerror load .internalstopped pop end
         }
         if
     }
     ifelse	% newerror
     end
     flush
    } bind executeonly def
  /.printerror_long			% long error printout,
                                        % $error is on the dict stack
   {	% Push the (anonymous) stack printing procedure.
        %  <heading> <==flag> <override-name> <stackname> proc
       {
         currentdict exch .knownget	% stackname defined in $error?
         {
           4 1 roll			% stack: <stack> <head> <==flag> <over>
           /errordict .systemvar exch .knownget	% overridename defined?
           {
             exch pop exch pop exec	% call override with <stack>
           }
           {
             exch print exch		% print heading. stack <==flag> <stack>
             1 index not { () = } if
             { 1 index { (\n    ) } { (   ) } ifelse print
               dup type /dicttype eq
               {
                 (--dict:) print
                 dup rcheck {
                   dup length =only (/) print dup maxlength =only
                   dup wcheck not { ((ro)) print } if
                 } if
                 /gcheck where {
                   pop gcheck { ((G)) } { ((L)) } ifelse print
                 } {
                   pop
                 } ifelse (--) print
               }
               {
                 dup type /stringtype eq 2 index or
                 { ==only } { =only } ifelse
               } ifelse
             } forall
             pop
           }
           ifelse			% overridden
         }
         { pop pop pop
         }
         ifelse				% stack known
       }

       (\nOperand stack:) OSTACKPRINT /.printostack /ostack 4 index exec
       (\nExecution stack:) ESTACKPRINT /.printestack /estack 4 index exec
       (\nBacktrace:) //true /.printbacktrace /backtrace 4 index exec
       (\nDictionary stack:) //false /.printdstack /dstack 4 index exec
       () =
       pop	% printing procedure

       errorname /VMerror eq
        { (VM status:) print mark vmstatus
          counttomark { ( ) print counttomark -1 roll dup =only } repeat
          cleartomark () =
        } if

       .languagelevel 2 ge
        { (Current allocation mode is ) print
          globalmode { (global\n) } { (local\n) } ifelse print
        } if

       .oserrno dup 0 ne
        { (Last OS error: ) print
          errorname /VMerror ne
           { dup .oserrorstring { = pop } { = } ifelse }
           { = }
          ifelse
        }
        { pop
        }
       ifelse

       position //null ne
        { (Current file position is ) print position = }
       if

   } bind executeonly def
% Define a procedure for clearing the error indication.
/.clearerror
 { $error /newerror //false put
   $error /errorname //null put
   $error /errorinfo //null put
   0 .setoserrno
 } bind executeonly def

% Define $error.  This must be in local VM.
.currentglobal //false .setglobal
/$error 40 dict .forcedef	% $error is local, systemdict is global
                % newerror, errorname, command, errorinfo,
                % ostack, estack, dstack, recordstacks,
                % binary, globalmode,
                % .inerror, .nosetlocal, position,
                % plus extra space for badly designed error handers.
$error begin
  /newerror //false def
  /recordstacks //true def
  /binary //false def
  /globalmode .currentglobal def
  /.inerror //false def
  /.nosetlocal //true def
  /position //null def
  /errorinfo //null def
end
% Define errordict similarly.  It has one entry per error name,
%   plus handleerror.  However, some astonishingly badly written PostScript
%   files require it to have at least one empty slot.
/errordict ErrorNames length 3 add dict
.forcedef		% errordict is local, systemdict is global
.setglobal		% back to global VM
%  gserrordict contains all the default error handling methods, but unlike
%  errordict it is noaccess after creation (also it is in global VM).
%  When running 'SAFER', we'll ignore the contents of errordict, which
%  may have been tampered with by the running job, and always use gserrordict
%  gserrordict also contains any non-standard errors, for better compatibility
%  with Adobe.
%
%   NOTE: the name gserrordict is known to the interpreter.
/gserrordict ErrorNames length 3 add dict def
% Register an error in errordict.  We make this a procedure because we only
% register the Level 1 errors here: the rest are registered by "feature"
% files.  However, ErrorNames contains all of the error names regardless of
% what features are included, so we have to "know" that VMerror is the last
% Level 1 error.
/.registererror		% <name> .registererror -
 { errordict exch .registererror2
 } bind def
/.registererror2	% <dict> <name> .registererror -
 { .currentglobal //true .setglobal	% create procs in global VM
   3 1 roll
   mark 1 index systemdict /.errorhandler get /exec load .packtomark cvx put
   .setglobal
 } bind def
ErrorNames
 { dup .registererror /VMerror eq {exit} if
 } forall
errordict begin
% The handlers for interrupt and timeout are special; there is no
% 'current object', so they push their own name.
   { /interrupt /timeout }
   { mark 1 index dup systemdict /.errorhandler get /exec load .packtomark cvx def
   } forall
/handleerror	% this key is 'well known' and some PS may redefine it
 { /.printerror .systemvar exec
 } bind def
end		% errordict

gserrordict /unknownerror errordict /unknownerror get put
errordict /unknownerror .undef

/.SAFERERRORLIST ErrorNames def
/.setsafererrors
{
% Put all the requested handlers in gserrordict
  gserrordict
  //.SAFERERRORLIST
  {dup errordict exch get 2 index 3 1 roll put} forall
  noaccess pop
  //systemdict /.setsafeerrors .forceundef
  //systemdict /.SAFERERRORLIST .forceundef
} bind executeonly odef

SAFERERRORS {.setsafererrors} if

% Define a stable private copy of handleerror that we will always use under
% JOBSERVER mode.
/.GShandleerror errordict /handleerror get def

% Define the [write]==[only] procedures.
/.dict 8 dict dup
begin def
  /.cvp {1 index exch 1 .writecvp} bind def
  /.p {1 index exch writestring} bind def
  /.p1 {2 index exch writestring} bind def
  /.p2 {3 index exch writestring} bind def
  /.print
        { dup type .dict exch .knownget { exec } { .cvp } ifelse
        } bind def
  /arraytype
        {dup rcheck
          {() exch dup xcheck
            {({) .p2
             {exch .p1
              1 index exch .print pop ( )} forall
             (})}
            {([) .p2
             {exch .p1
              1 index exch .print pop ( )} forall
             (])}
           ifelse exch pop .p}
          {.cvp}
         ifelse} bind def
  /packedarraytype /arraytype load def
{//.dict begin .print pop end}
  bind
end

/write==only exch def
/write== {1 index exch write==only (\n) writestring} bind def
/==only { (%stdout) (w) file exch write==only } bind def
/== {==only (\n) print} bind def

% Define [write]===[only], an extension that prints dictionaries
% in readable form and doesn't truncate strings.
/.dict /write==only load 0 get dup length 2 add dict .copydict dup
begin def
  /dicttype
        { dup rcheck
           { (<< ) .p1
              { 2 index 3 -1 roll .print pop ( ) .p1
                1 index exch .print pop ( ) .p
              }
             forall (>>) .p
           }
           { .cvp
           }
          ifelse
        } bind def
  /stringtype
        { 1 index exch 2 .writecvp
        } bind def

{//.dict begin .print pop end}
  bind
end

/write===only exch def
/write=== {1 index exch write===only (\n) writestring} bind def
/===only { (%stdout) (w) file exch write===only } bind def
/=== { ===only (\n) print } bind def

% Create the initialization queue.

/.delayed_init_queue 10 dict def

/.schedule_init   %   <priority> <proc> .schedule_init -
{
  //.delayed_init_queue 2 index known {
    (.delayed_init_queue priority conflict with ) print 1 index =
    /.schedule_init cvx /configurationerror signalerror
  } if
  //.delayed_init_queue 3 1 roll .growput
} bind def

/.execute_scheduled_inits %   - .execute_scheduled_inits -
{
  { 0 //null //.delayed_init_queue {     % maxp {} p {}
      3 index 2 index lt {
        4 2 roll
      } if
      pop pop
    } forall
    exch //.delayed_init_queue exch undef
    dup //null eq {
      pop exit
    } if
    exec
  } loop
} bind def

(END PROCS) VMDEBUG

% Define the font directory.
/FontDirectory //false .setglobal 100 dict //true .setglobal
.forcedef		% FontDirectory is local, systemdict is global

% Define the encoding dictionary.
/EncodingDirectory 16 dict def	% enough for Level 2 + PDF standard encodings

% Define .findencoding.  (This is redefined in Level 2.)
/.findencoding
 { //EncodingDirectory exch get exec
 } bind def
/.defineencoding
 { //EncodingDirectory 3 1 roll put
 } bind def
% If we've got the composite font extensions, define findencoding.
% To satisfy the Genoa FTS, findencoding must be a procedure, not an operator.
/rootfont where { pop /findencoding { .findencoding } def } if

% Define .registerencoding.
% NOTE: This procedure no longer does anything, but it must continue to
% exist for the sake of toolbin/encs2c.ps.
/.registerencoding {	% <index> <array> .registerencoding -
  pop pop
} bind odef

% Load StandardEncoding.
%% Replace 1 (gs_std_e.ps)
(gs_std_e.ps) dup runlibfile VMDEBUG

% Load ISOLatin1Encoding.
%% Replace 1 (gs_il1_e.ps)
(gs_il1_e.ps) dup runlibfile VMDEBUG

% Define stubs for the Symbol and Dingbats encodings.
% Note that the first element of the procedure must be the file name,
% since gs_lev2.ps extracts it to set up the Encoding resource category.

  /SymbolEncoding { /SymbolEncoding .findencoding } bind def
%% Replace 3 (gs_sym_e.ps)
  EncodingDirectory /SymbolEncoding
   { (gs_sym_e.ps) //systemdict begin runlibfile SymbolEncoding end }
  bind put

  /DingbatsEncoding { /DingbatsEncoding .findencoding } bind def
%% Replace 3 (gs_dbt_e.ps)
  EncodingDirectory /DingbatsEncoding
   { (gs_dbt_e.ps) //systemdict begin runlibfile DingbatsEncoding end }
  bind put

(END FONTDIR/ENCS) VMDEBUG

% Special handling for device parameters. Must follow definition of 'type'
% make -dPDFA equivalent to -dPDFA=1 (backwards compatible)
currentdict /PDFA known { PDFA type /booleantype eq { /PDFA 1 def } if } if

% Construct a dictionary of all available devices.
% These are (read-only) device prototypes that can't be
% installed or have their parameters changed.  For this reason,
% the value in the dictionary is actually a 2-element writable array,
% to allow us to create a default instance of the prototype on demand.

        % Loop until the .getdevice gets a rangecheck.
errordict /rangecheck 2 copy get
errordict /rangecheck { pop stop } put	% pop the command
  0 { {dup .getdevice exch 1 add} loop} .internalstopped pop
  1 add dict  /devicedict 1 index def
  begin			% 2nd copy of count is on stack
   { dup .devicename exch
     dup wcheck { dup } { //null } ifelse 2 array astore def
   } repeat
  end
put		% errordict /rangecheck
.clearerror
/devicenames devicedict { pop } forall devicedict length packedarray def

% Determine the default device.
/defaultdevice DISPLAYING
 { systemdict /DEVICE .knownget
    { devicedict 1 index known not
       { (Unknown device: ) print =
         flush /defaultdevice cvx 1 .quit
       }
      if
    }
    { .getdefaultdevice .devicename
    }
   ifelse
 }
 { /nullpage
 }
ifelse
/.defaultdevicename 1 index def
finddevice	% make a copy
def
devicedict /Default devicedict .defaultdevicename get put

(END DEVS) VMDEBUG

% Define statusdict, for the benefit of programs
% that think they are running on a LaserWriter or similar printer.
%% Replace 1 (gs_statd.ps)
(gs_statd.ps) runlibfile

(END STATD) VMDEBUG

% Load the standard font environment.
%% Replace 1 (gs_fonts.ps)
(gs_fonts.ps) runlibfile

(END GS_FONTS) VMDEBUG

% Define the default halftone screen and BG/UCR functions now, so that
% it will bind in the original definitions of set[color]screen.
% We make this a procedure so we can call it again when switching devices.

% Use an ordered dither for low-resolution devices.
/.setloreshalftone {	% <dpi> .setloreshalftone -
        % The following 'ordered dither' spot function was contributed by
        % Gregg Townsend.  Thanks, Gregg!
   16.001 div 0			% not 16: avoids rounding problems
    { 1 add 7.9999 mul cvi exch 1 add 7.9999 mul cvi 16 mul add <
        0E 8E 2E AE 06 86 26 A6 0C 8C 2C AC 04 84 24 A4
        CE 4E EE 6E C6 46 E6 66 CC 4C EC 6C C4 44 E4 64
        3E BE 1E 9E 36 B6 16 96 3C BC 1C 9C 34 B4 14 94
        FE 7E DE 5E F6 76 D6 56 FC 7C DC 5C F4 74 D4 54
        01 81 21 A1 09 89 29 A9 03 83 23 A3 0B 8B 2B AB
        C1 41 E1 61 C9 49 E9 69 C3 43 E3 63 CB 4B EB 6B
        31 B1 11 91 39 B9 19 99 33 B3 13 93 3B BB 1B 9B
        F1 71 D1 51 F9 79 D9 59 F3 73 D3 53 FB 7B DB 5B
        0D 8D 2D AD 05 85 25 A5 0F 8F 2F AF 07 87 27 A7
        CD 4D ED 6D C5 45 E5 65 CF 4F EF 6F C7 47 E7 67
        3D BD 1D 9D 35 B5 15 95 3F BF 1F 9F 37 B7 17 97
        FD 7D DD 5D F5 75 D5 55 FF 7F DF 5F F7 77 D7 57
        02 82 22 A2 0A 8A 2A AA 00 80 20 A0 08 88 28 A8
        C2 42 E2 62 CA 4A EA 6A C0 40 E0 60 C8 48 E8 68
        32 B2 12 92 3A BA 1A 9A 30 B0 10 90 38 B8 18 98
        F2 72 D2 52 FA 7A DA 5A F0 70 D0 50 F8 78 D8 58
     > exch get 256 div
    }
   bind
                % Use correct, per-plane screens for CMYK devices only.
   //systemdict /setcolorscreen known processcolors 4 eq and
    { 3 copy 6 copy //setcolorscreen }
    { //setscreen }
   ifelse
} bind def
/.setloresscreen {	% <dpi> .setloresscreen -
  .setloreshalftone
  0 array cvx settransfer	% Genoa CET won't accept a packed array!
  /setstrokeadjust where { pop //true setstrokeadjust } if
} bind def
% Use a 45-degree spot screen for high-resolution devices.
% The PS3 CET insists that the screen be an array and not a packedarray (!).
currentpacking //false setpacking
/.linescreen
% The following screen algorithm is used by permission of the author.
    { ((C) 1989 Berthold K.P. Horn) pop
      1 add 180 mul cos 1 0.08 add mul exch 2 add 180 mul cos
      1 0.08 sub mul add 2 div
    }
bind readonly def
setpacking
/.sethireshalftone {	% <dpi> .sethireshalftone <doscreen>
        % According to information published by Hewlett-Packard,
        % they use a 60 line screen on 300 DPI printers and
        % an 85 line screen on 600 DPI printers.
        % However, we use a 106 line screen, which produces smoother-
        % looking shades but fewer of them (32 vs. 50).
        % 46 was suggested as a good frequency value for printers
        % between 200 and 400 DPI, so we use it for lower resolutions.
        % Imagesetters need even higher frequency screens.
   //systemdict /DITHERPPI known
    { DITHERPPI
    }
    { dup cvi 100 idiv 15 .min
       {//null 46 46 60 60 60 106 106 106 106 133 133 133 133 133 150}
      exch get
     }
   ifelse
   1 index 4.01 div .min	% at least a 4x4 cell
   45
   //.linescreen
        % Determine whether we have lots of process colors.
        % If so, don't bother with color screening or gamma correction.
        % Also don't do gamma correction on very high-resolution devices.
        % (This should depend on dot gain, not resolution, but we don't
        % currently have a way to determine this.) Ignore missing components
        % (*Values = 1).
   currentdevice mark
     /RedValues 0 /GreenValues 0 /BlueValues 0 /GrayValues 0
   .dicttomark .getdeviceparams
   counttomark 2 idiv 1 sub
    { exch pop dup 1 le
       { pop }
       { exch dup 1 le
          { pop }
          { .min }
        ifelse
       }
      ifelse
    }
   repeat
   exch pop exch pop 32 lt 4 index 800 lt and 5 1 roll
        % Stack: doscreen dpi freq angle proc
        % Ghostscript currently doesn't use correct, per-plane halftones
        % unless setcolorscreen has been executed.  Since these are
        % computationally much more expensive than binary halftones,
        % we check to make sure they are really warranted, i.e., we have
        % a high-resolution CMYK device (i.e., not a display) with
        % fewer than 5 bits per plane (i.e., not a true-color device).
   4 -1 roll 150 ge
    { /setcolorscreen where
       { pop //systemdict /COLORSCREEN known
          { COLORSCREEN }
          { 3 index }
         ifelse
         dup //false ne
          { 4 1 roll 3 copy 6 copy 13 -1 roll
        % For really high-quality screening on printers, we need to
        % give each plane its own screen angle.  Unfortunately,
        % this currently has very large space and time costs.
            //true eq		% true => different angles,
                                % 0 => same angles
             { { 45 90 15 75 } { 3 1 roll exch pop 12 3 roll } forall
             }
            if //setcolorscreen
          }
          { pop //setscreen	% false => single binary screen
          }
         ifelse
       }
       { //setscreen		% setcolorscreen not known
       }
      ifelse
    }
    { //setscreen			% not high resolution
    }
   ifelse
} bind def
/.sethiresscreen {	% <dpi> .sethiresscreen
  .sethireshalftone     % pushes true if a screen halftone used
                        % Stack: doscree
  {
    % Set the transfer function to lighten up the grays.
    % Parameter values closer to 1 are better for devices with
    % less dot spreading; lower values are better with more spreading.
    % The value 0.8 is a compromise that will probably please no one!
    %
    % Because of a bug in FrameMaker, we have to accept operands
    % outside the valid range of [0..1].
    {
      dup dup 0.0 gt exch 1.0 lt and
      {
        0.8 exp
      }
      if
    }
  }
  {
     % Set the transfer function to the identity.
     0 array cvx     % Genoa CET won't accept a packed array!
  }
  ifelse
  settransfer
  /setstrokeadjust where
  { pop //false setstrokeadjust }
  if

  % Increase fill adjustment so that we effectively use Adobe's
  % any-part-of-pixel rule.
  0.5 .setfilladjust
} bind def

% Set the default screen and BG/UCR.
% We define the proc here, rather than inline in .setdefaultbgucr
% for the benefit of gs_cet.ps so jobs that do anything that causes
% .setdefaultbgucr to be called will still get the redefined proc
% in gs_cet.ps
(%.defaultbgrucrproc) cvn { pop 0 } def

/.setdefaultbgucr {
  systemdict /setblackgeneration known {
    (%.defaultbgrucrproc) cvn load dup
    setblackgeneration setundercolorremoval
  } if
} bind def
/.useloresscreen {	% - .useloresscreen <bool>
        % Compute min(|dpi x|,|dpi y|) as the definition of the resolution.
  72 72 matrix defaultmatrix dtransform abs exch abs .min
  dup 150 lt //systemdict /DITHERPPI known not and
} bind def

/.gsgetdeviceprop	% <device> <propname> gsgetdeviceprop <value>
 { 2 copy mark exch //null .dicttomark .getdeviceparams
   dup mark eq		% if true, not found
    { pop dup /undefined signalerror }
    { 5 1 roll pop pop pop pop }
   ifelse
 } bind def

% The following implementation uses LL2 extensions, but only in stopped
% contexts so that with LL1, the .set??reshalftone will be used.
%
%	- .getdefaulthalftone <halftonedict> true	if default found
%			      false
/.getdefaulthalftone {
  % try the device to see if it has a default halftone
  { currentdevice /HalftoneDefault //.gsgetdeviceprop exec } .internalstopped
  { pop pop //false }		% no device property
  { dup type /dicttype eq { //true } { pop //false } ifelse }
  ifelse
  % stack: <halftonedict> true    if default found
  %         false		  not found
  dup not
  { % device did not provide a default, try Resource
    pop { /Default /Halftone /findresource .systemvar exec } .internalstopped
    { pop pop //false } { //true } ifelse
  }
  if
} bind def
currentdict /.gsgetdeviceprop .forceundef

/.setdefaulthalftone {
  .getdefaulthalftone
  { sethalftone }
  { % default not found
    .useloresscreen { .setloreshalftone } { .sethireshalftone pop } ifelse
  }
  ifelse
} bind def

/.setdefaultscreen {
  .useloresscreen { .setloresscreen } { .sethiresscreen } ifelse
  .setdefaultbgucr
} bind def

% Rendering intent mapping for setcolorrendering1 and PDF interpreter
/.renderingintentdict mark
  /Perceptual 0
  /RelativeColorimetric 1
  /Saturation 2
  /AbsoluteColorimetric 3
.dicttomark readonly def

% Load basic color support
%% Replace 1 (gs_cspace.ps)
(gs_cspace.ps) runlibfile

(END BASIC COLOR) VMDEBUG

% Load image support
%% Replace 1 (gs_img.ps)
(gs_img.ps) runlibfile

(END IMAGE) VMDEBUG

% Auxiliary procedures for generating file name templates.

% Convert a path name into a string suitable for filenameforall
% For example: (a\\b*?c) to (a\\\\b\\*\\?c)
/.makepathtemplate {	% str1 -- str2
   dup length dup add string 0	% result string up to twice the size
   0 1 4 index length 1 sub {
     3 index exch get
     dup 92 eq {		% \ -> \\
        2 index 2 index 92
        put
        exch 1 add exch
     }
     if
     dup 42 eq {		% * -> \*
        2 index 2 index 92
        put
        exch 1 add exch
     }
     if
     dup 63 eq {		% ? -> \?
        2 index 2 index 92
        put
        exch 1 add exch
     }
     if
     2 index 2 index 3 -1 roll put 1 add
   } for
   0 exch getinterval exch pop
} bind def

%   false <dir_list> <template> .generate_dir_list_templates_with_length <t1> ... <tN>
%   true  <dir_list> <template> .generate_dir_list_templates_with_length <t1> <l1> ... <tN> <ln>
%
% Generates various valid templates combining a directory list with a given template.
% With 'true' operand it also returns lengths of directory pathes.
%
% Example1 (DOS, Windows) :
%       false [(/gs/lib) (/gs/Resource/) (\gs8.00\Resource)] (*/*) -->
%       (/gs/lib/*/*) (/gs/Resource/*/*) (\\gs8.00\\Resource/*/*)
%
% Example2 (OpenVMS) :
%       false [(gs:[lib]) (gs:[Resource]) (gs800:[Resource)] (*]*) -->
%       ((gs:[lib.*]*) [gs:[Resource.*]*) ([gs800:[Resource.*]*)
%
/.generate_dir_list_templates_with_length
{                                                  % [dl] (templ)
  % We need to convert paths into templates,
  % because it can include '\' on DOS.
  % In same time, the <template> must not convert,
  % because it is already a template.
  % Besides that, we cannot combine template using .file_name_combine,
  % because template syntax breaks the platform path syntax.
  % To resolve this, we first convert the <template> into
  % a fake filename, and combine it with path,
  % obtaining a correct separator. Then we replace
  % the fake file name with the given template.
  %

  % Create the fake file name :
  dup dup length string copy                       % b [dl] (templ) (ffn)
  (*) 0 get (?) 0 get (\\) 0 get (x) 0 get 0 0     % b [dl] (templ) (ffn) * ? \ x i j
  { 1 index 7 index length ge { exit } if
    6 index 2 index get                            % b [dl] (templ) (ffn) * ? \ x i j c
    dup 7 index eq                                 % b [dl] (templ) (ffn) * ? \ x i j c bool
    1 index 7 index eq or { % *?
      pop 2 index
    } if                                           % b [dl] (templ) (ffn) * ? \ x i j C
    dup 5 index eq {        % \
      3 2 roll 1 add 3 1 roll                      % b [dl] (templ) (ffn) * ? \ x i' j C
      2 index 8 index length ge { pop exit } if
      pop 6 index 2 index get                      % b [dl] (templ) (ffn) * ? \ x i' j C'
    } if
    7 index 2 index 3 2 roll put                   % b [dl] (templ) (ffn) * ? \ x i' j
    1 add exch 1 add exch                          % b [dl] (templ) (ffn) * ? \ x i'' j'
  } loop                                           % b [dl] (templ) (ffn) * ? \ x i j
  6 1 roll pop                                     % b [dl] (templ) (ffn) j * ? \ x
  exch pop exch pop exch pop exch                  % b [dl] (templ) (ffn) x j
  { dup 3 index length ge { exit } if
    3 copy exch put
    1 add
  } loop
  pop pop                                          % b [dl] (templ) (ffn)

  % An internal procedure :
  {                                 % {} b [dl] (templ) (ffn) (dffn)
    dup length
    2 index length sub % drop "ffn", remaining "ldffn" = length of the "directory" part
    exch                            % {} b [dl] (templ) (ffn) ldffn (dffn)
    .makepathtemplate               % {} b [dl] (templ) (ffn) ldffn (Dffn)
    dup                             % {} b [dl] (templ) (ffn) ldffn (Dffn) (Dffn)
    4 index length dup              % {} b [dl] (templ) (ffn) ldffn (Dffn) (Dffn) templL templL
    2 index length                  % {} b [dl] (templ) (ffn) ldffn (Dffn) (Dffn) templL templL DffnL
    exch sub                        % {} b [dl] (templ) (ffn) ldffn (Dffn) (Dffn) templL i
    exch getinterval                % {} b [dl] (templ) (ffn) ldffn (Dffn) (suffix)
    4 index exch copy pop           % {} b [dl] (templ) (ffn) ldffn (dt)
    5 index {
      exch                          % {} b [dl] (templ) (ffn) (dt) ldffn
      7 2 roll                      % (dt) ldffn {} b [dl] (templ) (ffn)
    } {
      exch pop                      % {} b [dl] (templ) (ffn) (dt)
      6 1 roll                      % (dt) {} b [dl] (templ) (ffn)
    } ifelse
  }
  5 1 roll                                         % {} b [dl] (templ) (ffn)

  % Generate templates :
  dup .file_name_is_absolute {
    dup                                            % {} b [dl] (templ) (ffn) (ffn)
    5 index exec                                   % (t1) {} b [dl] (templ) (ffn)
  } {
    2 index {                                      % ... {} b [dl] (templ) (ffn) (d)
      1 index                                      % ... {} b [dl] (templ) (ffn) (d) (ffn)
      //false .file_name_combine {                 % ... {} b [dl] (templ) (ffn) (dffn)
        5 index exec                               % ... (t1) ?l1 {} b [dl] (templ) (ffn)
      } {                                          % ... {} b [dl] (templ) (ffn) (d) (ffn)
        pop pop                                    % ... {} b [dl] (templ) (ffn)
      } ifelse
    } forall
  } ifelse                                         % (t1) ?l1 (t2) ?l2 ... (tN) ?ln {} b [dl] (templ) (ffn)
  pop pop pop pop pop                              % (t1) ?l1 (t2) ?l2 ... (tN) ?ln
} bind def

%   <dir_list> <template> .generate_dir_list_templates <t1> ... <tN>
%
% Generates various valid templates combining a directory list with a given template.
% It's the 'false' case of the function above.
%
/.generate_dir_list_templates
{ //false 3 1 roll //.generate_dir_list_templates_with_length exec
} bind def

% Load the initialization files for optional features.
%% Replace 4 INITFILES
systemdict /INITFILES known
 { INITFILES { <00> search { exch pop dup runlibfile VMDEBUG }{ dup runlibfile VMDEBUG exit } ifelse } .bind loop
 }
if

% If Level 2 (or higher) functionality is implemented, enable it now.
/.setlanguagelevel where {
  pop 2 .setlanguagelevel
        % If the resource machinery is loaded, fix up some things now.
  /.fixresources where { pop .fixresources } if
} if
/ll3dict where {
  pop 3 .setlanguagelevel
} if

(END INITFILES) VMDEBUG

% Create a null font.  This is the initial font.
8 dict dup begin
  /FontMatrix [ 1 0 0 1 0 0 ] readonly def
  /FontType 3 def
  /FontName () def
  /Encoding StandardEncoding def
  /FontBBox { 0 0 0 0 } readonly def % executable is bogus, but customary ...
  /BuildChar { pop pop 0 0 setcharwidth } bind def
  /PaintType 0 def		% shouldn't be needed!
end
/NullFont exch definefont setfont

% Define NullFont as the font.
/NullFont currentfont def

% Load initial fonts from FONTPATH directories, Fontmap file,
% and/or .getccfont as appropriate.
.loadinitialfonts

% Remove NullFont from FontDirectory, so it can't be accessed by mistake.
/undefinefont where {
  pop /NullFont undefinefont
} {
  FontDirectory /NullFont .undef
} ifelse

(END FONTS) VMDEBUG

% Restore the real definition of runlibfile.
/runlibfile /.runlibfile load def
currentdict /.runlibfile .undef

% Bind all the operators defined as procedures.
/.bindoperators		% binds operators in currentdict
 {
   currentdict
    { dup type /operatortype eq
       {
         % This might be a real operator, so bind might cause a typecheck
         {.bind} .internalstopped pop
       }
      if pop pop
    } forall
 } def
DELAYBIND not { .bindoperators } if

% Establish a default environment.

defaultdevice
% The following line used to skip setting of page size and resolution if
% NODISPLAY was selected.  We think this was only to save time and memory,
% and it is a bad idea because it prevents setting the resolution in this
% situation, which pstoedit (among other programs) relies on.
%DISPLAYING not { setdevice (%END DISPLAYING) .skipeof } if

% If the paper size is not specifed and the device defaults to
% letter or A4 paper, select the DEFAULTPAPERSIZE.
systemdict /DEFAULTPAPERSIZE known not {
  % Use .defaultpapersize if it returns a known paper size
  .defaultpapersize {
     statusdict /.pagetypeprocs get 1 index known {
       systemdict exch /DEFAULTPAPERSIZE exch put
     } {
       QUIET {
         pop
       } {
         (Unknown .defaultpapersize: ) print ==only (.) =
       } ifelse
     } ifelse
  } if
} if
systemdict /DEFAULTPAPERSIZE known
systemdict /PAPERSIZE known not and
systemdict /DEVICEWIDTH known not and
systemdict /DEVICEHEIGHT known not and
systemdict /DEVICEWIDTHPOINTS known not and
systemdict /DEVICEHEIGHTPOINTS known not and
 {
   defaultdevice mark /PageSize //null .dicttomark .getdeviceparams
   .dicttomark /PageSize get
   dup 0 get 0.5 add cvi 612 eq 1 index 1 get 0.5 add cvi 792 eq and
   1 index 0 get 0.5 add cvi 595 eq 2 index 1 get 0.5 add cvi 842 eq and
   or exch pop
   {
     % the default paper size was letter, so replace it with DEFAULTPAPERSIZE
     /PAPERSIZE DEFAULTPAPERSIZE def
   } if
 }
if

systemdict /DEVICEWIDTH known
systemdict /DEVICEHEIGHT known or
systemdict /DEVICEWIDTHPOINTS known or
systemdict /DEVICEHEIGHTPOINTS known or
systemdict /DEVICEXRESOLUTION known or
systemdict /DEVICEYRESOLUTION known or
systemdict /PAPERSIZE known or
not { (%END DEVICE) .skipeof } if
% Let DEVICE{WIDTH,HEIGHT}[POINTS] override PAPERSIZE.
systemdict /PAPERSIZE known
systemdict /DEVICEWIDTH known not and
systemdict /DEVICEHEIGHT known not and
systemdict /DEVICEWIDTHPOINTS known not and
systemdict /DEVICEHEIGHTPOINTS known not and {
  % Convert the paper size to device dimensions.
  statusdict /.pagetypeprocs get PAPERSIZE .knownget {
    dup 0 get /DEVICEWIDTHPOINTS exch def
    1 get /DEVICEHEIGHTPOINTS exch def
  } {
    (Unknown paper size: ) print PAPERSIZE ==only (.) =
  } ifelse
} if
% Adjust the device parameters per the command line.
% It is possible to specify resolution, pixel size, and page size;
% since any two of these determine the third, conflicts are possible.
% We simply pass them to .setdeviceparams and let it sort things out.
   mark /HWResolution //null /HWSize //null /PageSize //null .dicttomark
   .getdeviceparams .dicttomark begin
   mark
        % Check for resolution.
   /DEVICEXRESOLUTION where dup
    { exch pop HWResolution 0 DEVICEXRESOLUTION put }
   if
   /DEVICEYRESOLUTION where dup
    { exch pop HWResolution 1 DEVICEYRESOLUTION put }
   if
   or { /HWResolution HWResolution } if
        % Check for device sizes specified in pixels.
   /DEVICEWIDTH where dup
    { exch pop HWSize 0 DEVICEWIDTH put }
   if
   /DEVICEHEIGHT where dup
    { exch pop HWSize 1 DEVICEHEIGHT put }
   if
   or { /HWSize HWSize } if
        % Check for device sizes specified in points.
   /DEVICEWIDTHPOINTS where dup
    { exch pop PageSize 0 DEVICEWIDTHPOINTS put }
   if
   /DEVICEHEIGHTPOINTS where dup
    { exch pop PageSize 1 DEVICEHEIGHTPOINTS put }
   if
   or { /PageSize PageSize } if
        % Check whether any parameters were set.
   dup mark eq { pop defaultdevice } { defaultdevice putdeviceprops } ifelse
   end
%END DEVICE
% Set any device properties defined on the command line.
% If BufferSpace is defined but not MaxBitmap, set MaxBitmap to BufferSpace.
systemdict /BufferSpace known
systemdict /MaxBitmap known not and
 { systemdict /MaxBitmap BufferSpace put
 } if
dup getdeviceprops
counttomark 2 idiv
 { systemdict 2 index known
    { pop dup load counttomark 2 roll }
    { pop pop }
   ifelse
 } repeat
counttomark dup 0 ne
 { 2 add -1 roll putdeviceprops }
 { pop pop }
ifelse
% If the initial device parameters are invalid, the setdevice may fail.
% Trap this and produce a reasonable error message.
{ setdevice }		% does an erasepage
INITDEBUG { exec //false } { .internalstopped } ifelse {
  (%stderr) (w) file dup
  (**** Unable to open the initial device, quitting.\n) writestring
  flushfile
  1 .quit
} if

% If the media size is fixed, update the current page device dictionary.
FIXEDMEDIA
dup { pop systemdict /.currentpagedevice known } if
dup { pop .currentpagedevice exch pop } if
not { (%END MEDIA) .skipeof } if
currentpagedevice dup length dict .copydict
dup /Policies
        % Stack: <pagedevice> <pagedevice> /Policies
1 index /InputAttributes
2 copy get dup length dict .copydict
        % Stack: <pagedevice> <pagedevice> /Policies <pagedevice>
        %   /InputAttributes <inputattrs'>
dup 0 2 copy get dup length dict .copydict
        % Stack: <pagedevice> <pagedevice> /Policies <pagedevice>
        %   /InputAttributes <inputattrs'> <inputattrs'> 0 <attrs0'>
dup /PageSize 7 index /PageSize get
put				% PageSize in 0
put				% 0 in InputAttributes
put				% InputAttributes in pagedevice
% Also change the page size policy so we don't get an error.
        % Stack: <pagedevice> <pagedevice> /Policies
2 copy get dup length dict .copydict
        % Stack: <pagedevice> <pagedevice> /Policies <policies'>
dup /PageSize 7 put		% PageSize in Policies
put				% Policies in pagedevice
.setpagedevice
%END MEDIA

% Set up the interpreter context version of -dUSeCIEColor option
% so that .getuseciecolor has the correct value (see gs_setpd.ps)
/setpagedevice where {
  pop systemdict /UseCIEColor known {
    mark /UseCIEColor UseCIEColor /..StartupGlobal //true .dicttomark setpagedevice
  } if
} if

%END DISPLAYING

(END DEVICE) VMDEBUG

% Establish a default upper limit in the character cache,
% namely, enough room for a 18-point character at the resolution
% of the default device, or for a character consuming 1% of the
% maximum cache size, whichever is larger.
mark
        % Compute limit based on character size.
  18 dup dtransform
  exch abs cvi 31 add 32 idiv 4 mul	% X raster
  exch abs cvi mul		% Y
        % Compute limit based on allocated space.
  cachestatus pop pop pop pop pop exch pop 0.01 mul cvi
  .max dup 10 idiv exch
setcacheparams
% Conditionally disable the character cache.
NOCACHE { 0 setcachelimit } if

(END CONFIG) VMDEBUG

% Initialize graphics.

.setdefaultscreen
initgraphics

% The interpreter relies on there being at least 2 entries
% on the graphics stack.  Establish the second one now.
gsave

% Define some control sequences as no-ops.
% This is a hack to get around problems
% in some common PostScript-generating applications.
<04> cvn JOBSERVER {
    { { clear cleardictstack //false 0 .startnewjob } 2 .stop } bind
  } {
    { }
  } ifelse def
<1b> cvn {	 		% UEL is <esc>%-12345X and acts the same as ^D
  currentfile (%-12345X) .peekstring pop (%-12345X) eq <04> cvn load if
} bind def
<1b45> cvn { } def		% PJL reset prologue (ESC E)
<1b451b> cvn <1b> cvn load def	% PJL reset epilogue (ESC E + UEL)
(\001M) cvn			% TBCP initiator
 { currentfile /TBCPDecode filter cvx exec
 } bind def
/@PJL				% H-P job control
 {
   % Windows 2000 driver includes PJL into %%BeginFeature block.
   % Identify this from the pattern on the stack: countdictstack lucas mark
   % and fail the feature request.

   count 3 ge {
     dup mark eq {
       2 index countdictstack eq {
          1 index /lucas where { /lucas get eq } { pop //false } ifelse {
            stop
         } if
       } if
     } if
   } if
   currentfile //=string readline pop pop
 } bind def

% Install the EPS handler if needed
systemdict /EPSBoundingBoxInit known { EPSBoundingBoxInit } if

% If we want a "safer" system, disable some obvious ways to cause havoc.
.currentglobal //true .setglobal
/SAFETY 2 dict
  dup /safe //false put
  dup /tempfiles 10 dict noaccess put
readonly def
.setglobal

/tempfilepaths
[
  (TMPDIR) getenv not
  {
    (TEMP) getenv not
    {
      (TMP) getenv not
      {
        (/temp) (/tmp)
      } if
    } if
  } if
] def

/.locksafe_userparams {
  SAFETY /safe get not {
    <<
      /PermitFileReading [
        currentuserparams /PermitFileReading get aload pop
        //tempfilepaths (*) .generate_dir_list_templates
        /FONTPATH .systemvar (*) .generate_dir_list_templates
          % Library files :
        /LIBPATH  .systemvar (*) .generate_dir_list_templates
          % Resource files on OpenVMS requires a separate template (gs:[dir.*]*)
          % because the (gs:[dir]*) doesn't cover them.
        /LIBPATH  .systemvar (*) .file_name_separator (*)
          concatstrings concatstrings .generate_dir_list_templates
        .languagelevel 2 ge {
            % Default resources :
          [ currentsystemparams /GenericResourceDir get] (*) .generate_dir_list_templates
            % Default resources (OpenVMS, see comment above.) :
          [ currentsystemparams /GenericResourceDir get] (*) .file_name_separator (*)
            concatstrings concatstrings .generate_dir_list_templates
        } if
        currentuserparams /ICCProfilesDir known {
          [currentuserparams /ICCProfilesDir get] (*)
          .generate_dir_list_templates
        } if
      ]
      /PermitFileWriting [
          currentuserparams /PermitFileWriting get aload pop
          //tempfilepaths (*) .generate_dir_list_templates
      ]
      /PermitFileControl [
          currentuserparams /PermitFileControl get aload pop
          //tempfilepaths (*) .generate_dir_list_templates
      ]
      /LockFilePermissions //true
    >> setuserparams
  }
  if
} bind def

currentdict /tempfilepaths undef

/.locksafe {
  .locksafe_userparams
  //systemdict /getenv {pop //false} .forceput
  % setpagedevice has the side effect of clearing the page, but
  % we will just document that. Using setpagedevice keeps the device
  % properties and pagedevice .LockSafetyParams in agreement even
  % after a restore that changes the value to false.
  currentglobal currentpagedevice gcheck setglobal % use correct VM space
  << /.LockSafetyParams //true >> setpagedevice
  setglobal
  //SAFETY /safe //true .forceput % overrides readonly
} .bind executeonly odef

% This is only used during startup. Its required so that
% we can detect in setpagdevice that we are in fact in startup
% and allocate a *global* instead of local VM. We need it to be
% global to satisfy Display PostScript (see start of /setpagdevice
% in gs_setpd.ps)
%
/.locksafeglobal {
  .locksafe_userparams
  systemdict /getenv {pop //false} put
  % setpagedevice has the side effect of clearing the page, but
  % we will just document that. Using setpagedevice keeps the device
  % properties and pagedevice .LockSafetyParams in agreement even
  % after a restore that changes the value to false.
  currentglobal currentpagedevice gcheck setglobal % use correct VM space
  << /.LockSafetyParams //true
    /..StartupGlobal //true
  >> setpagedevice
  setglobal
  //SAFETY /safe //true .forceput % overrides readonly
} .bind executeonly odef

/.setsafe
{
  SAFETY /safe get not {
    <<
      /PermitFileReading [ ]
      /PermitFileWriting [ ]
      /PermitFileControl [ ]
    >> setuserparams
  }
  if
  .locksafe
} .bind executeonly odef

% See /.locksafeglobal above.
%
/.setsafeglobal {
  SAFETY /safe get not {
    <<
      /PermitFileReading [ ]
      /PermitFileWriting [ ]
      /PermitFileControl [ ]
    >> setuserparams
  }
  if
  .locksafeglobal
} bind executeonly odef

% If we are running in SAFER mode, lock things down
SAFER { .setsafeglobal } if

/SAFERUndefinePostScriptOperators {
  [
  % Used by our own test suite files
  /.pushpdf14devicefilter    % transparency-example.ps
  /.poppdf14devicefilter     % transparency-example.ps
  /.setopacityalpha          % transparency-example.ps
  /.setshapealpha            % transparency-example.ps
  /.endtransparencygroup     % transparency-example.ps
  /.setdotlength             % Bug687720.ps
  /.sort /.setdebug /.mementolistnewblocks /getenv
  /unread
  ]
  {systemdict exch .forceundef} forall

  //systemdict /SAFERUndefinePostScriptOperators .forceundef
} .bind executeonly def % must be bound and hidden for .forceundef

/UndefinePostScriptOperators {

  % This list is of Display PostScript operators. We believe that Display PostScript
  % was never fully implemented and the only known user, GNUStep, is no longer
  % using it. So lets remove it.
  [
  /condition /currentcontext /detach /.fork /join /.localfork /lock /monitor /notify
  /wait /yield /.currentscreenphase /.setscreenphase /.image2 /eoviewclip /initviewclip
  /viewclip /viewclippath /defineusername
  % NeXT DPS extensions
  /currentalpha /setalpha /.alphaimage /composite /compositerect /dissolve /sizeimagebox /.sizeimageparams
  ]
  {systemdict exch .forceundef} forall

  % This list is of operators which no longer appear to be used, and which we do not believe
  % to have any real use. For now we will undefine the operstors so they cannot easily be used
  % but can be easily restored (just delete the name from the list in the array). In future
  % we may remove the operator and the code implementation entirely.
  [
  /.bitadd /.charboxpath /.cond /.runandhide /.popdevicefilter
  /.execfile /.filenamesplit /.file_name_parent
  /.setdefaultmatrix /.isprocfilter /.unread /.psstringencode
  /.buildsampledfunction /.isencapfunction /.currentaccuratecurves /.currentcurvejoin /.currentdashadapt /.currentdotlength
  /.currentlimitclamp /.dotorientation /.setaccuratecurves /.setcurvejoin /.setdashadapt /.setdotorientation
  /.setlimitclamp /.currentscreenlevels /.dashpath /.pathbbox /.identeq /.identne /.tokenexec /.forgetsave /.pantonecallback

  % Used by our own test suite files
  %/.setdotlength % Bug687720.ps
  ]
  {systemdict exch .forceundef} forall

  % This list of operators are used internally by various parts of the Ghostscript startup code.
  % Since each operator is a potential security vulnerability, and any operator listed here
  % is not required once the initialisation is complete and functions are bound, we undefine
  % the ones that aren't needed at runtime.
  [
  /.callinstall /.callbeginpage /.callendpage
  /.currentstackprotect /.setstackprotect /.errorexec /.finderrorobject /.installsystemnames /.bosobject /.fontbbox
  /.type1execchar /.type2execchar /.type42execchar /.setweightvector /.getuseciecolor /processcolors /.includecolorspace
  /.execn /.instopped /.stop /.stopped /.setcolorrendering /.setdevicecolorrendering /.buildcolorrendering1 /.builddevicecolorrendering1
  /.TransformPQR_scale_WB0 /.TransformPQR_scale_WB1 /.TransformPQR_scale_WB2 /.currentoverprintmode /.copydevice2
  /.devicename /.doneshowpage /.getbitsrect /.getdevice /.getdefaultdevice /.getdeviceparams /.gethardwareparams
  /makewordimagedevice /.outputpage /.putdeviceparams /.setdevice /.currentshowpagecount
  /.setpagedevice /.currentpagedevice /.knownundef /.setmaxlength /.rectappend /.initialize_dsc_parser /.parse_dsc_comments
  /.fillCIDMap /.fillIdentityCIDMap /.buildcmap /.filenamelistseparator /.libfile /.getfilename
  /.file_name_combine /.file_name_is_absolute /.file_name_separator /.file_name_directory_separator /.file_name_current /.filename
  /.peekstring /.writecvp /.subfiledecode /.setupUnicodeDecoder /.jbig2makeglobalctx /.registerfont /.parsecff
  /.getshowoperator /.getnativefonts /.beginform /.endform /.get_form_id /.repeatform /.reusablestream /.rsdparams
  /.buildfunction /.currentfilladjust2 /.setfilladjust2 /.sethpglpathmode /.currenthpglpathmode
  /.currenthalftone /.sethalftone5 /.image1 /.imagemask1 /.image3 /.image4
  /.getiodevice /.getdevparms /.putdevparams /.bbox_transform /.matchmedia /.matchpagesize /.defaultpapersize
  /.oserrno /.setoserrno /.oserrorstring /.getCPSImode
  /.getscanconverter /.setscanconverter /.type1encrypt /.type1decrypt/.languagelevel /.setlanguagelevel /.eqproc /.fillpage /.buildpattern1 /.saslprep
  /.buildshading1 /.buildshading2 /.buildshading3 /.buildshading4 /.buildshading5 /.buildshading6 /.buildshading7 /.buildshadingpattern
  /.shfill /.argindex /.bytestring /.namestring /.stringbreak /.stringmatch /.globalvmarray /.globalvmdict /.globalvmpackedarray /.globalvmstring
  /.localvmarray /.localvmdict /.localvmpackedarray /.localvmstring /.systemvmarray /.systemvmdict /.systemvmpackedarray /.systemvmstring /.systemvmfile /.systemvmlibfile
  /.systemvmSFD /.settrapparams /.currentsystemparams /.currentuserparams /.getsystemparam /.getuserparam /.setsystemparams /.setuserparams
  /.checkpassword /.locale_to_utf8 /.currentglobal /.gcheck /.imagepath /.currentoutputdevice
  /.type /.writecvs /.setSMask /.currentSMask /.needinput /.countexecstack /.execstack /.applypolicies
  /odef

  % Used by a free user in the Library of Congress. Apparently this is used to
  % draw a partial page, which is then filled in by the results of a barcode
  % scanner and SQL database lookup. Its not clear to us exactly why this needs to be
  % done as a partial page, but its easiest to restore the operator, and it seems like
  % its a reasonably safe operator to restore, for the *very* few devices on which
  % it will have any effect. Currently this uses the 'sync_output' device method
  % to transfer the partial page, in future we may use a spec_op instead.
  %/flushpage

  % Used by our own test suite files
  %/.fileposition %image-qa.ps

  % Either our code uses these in ways which mean they can't be undefined, or they are used directly by
  % test files/utilities, or engineers expressed a desire to keep them visible.
  %
  %/currentdevice /.sort /.buildfont0 /.buildfont1 /.buildfont2 /.buildfont3 /.buildfont4 /.buildfont9 /.buildfont10 /.buildfont11
  %/.buildfont32 /.buildfont42 /.type9mapcid /.type11mapcid /.swapcolors
  %/currentdevice  /.quit /.setuseciecolor /.needinput /.setoverprintmode /.special_op /.dicttomark /.knownget
  %/.FAPIavailable /.FAPIpassfont /.FAPIrebuildfont /.FAPIBuildGlyph /.FAPIBuildChar /.FAPIBuildGlyph9
  %/.tempfile /.numicc_components /.set_outputintent  /.max /.min /.vmreclaim /.getpath /.setglobal
  %/.setdebug /.mementolistnewblocks /getenv
  ]
  {systemdict exch .forceundef} forall

  % level 2 operators, undefine from both systemdict and level2dict
  [
      /.execform1
      /.getdevparams
      /.setuserparams2
      /.startjob
      /.checkFilePermitparams
      /.copyparam
      /.setpagesize

% Couldn't figure out how to do these yet
%      /.checkparamtype
%      /.startnewjob
  ]
  dup {level2dict exch .forceundef} forall
  {systemdict exch .forceundef} forall

  //systemdict /UndefinePostScriptOperators .forceundef
} .bind executeonly def % must be bound and hidden for .forceundef

/UndefinePDFOperators {
  % This list of operators are used internally by various parts of the Ghostscript PDF interpreter.
  % Since each operator is a potential security vulnerability, and any operator listed here
  % is not required once the initislisation is complete and functions are bound, we undefine
  % the ones that aren't needed at runtime.
  % This function is only called if DELAYBIND is true. It is a copy of the code at the end of pdf_main.ps
  % and must be maintained in parallel with it.
  [
  /.pdfawidthshow /.pdfwidthshow /.currentblackptcomp /.setblackptcomp
  /.setfillcolor /.setfillcolorspace /.setstrokecolor /.setstrokecolorspace /.currentrenderingintent /.setrenderingintent
  /.currenttextrenderingmode /.settextspacing /.currenttextspacing /.settextleading /.currenttextleading
  /.settextrise /.currenttextrise /.setwordspacing /.currentwordspacing /.settexthscaling /.currenttexthscaling
  /.settextlinematrix /.currenttextlinematrix /.currenttextmatrix /.settextmatrix /.currentblendmode
  /.currentopacityalpha /.currentshapealpha /.currenttextknockout
  /.pushextendedgstate /.popextendedgstate /.begintransparencytextgroup
  /.endtransparencytextgroup /.begintransparencymaskgroup /.begintransparencymaskimage /.endtransparencymask /.image3x
  /.abortpdf14devicefilter /.pdfinkpath /.pdfFormName /.setstrokeconstantalpha
  /.setfillconstantalpha /.setalphaisshape /.currentalphaisshape
  /.settextspacing /.currenttextspacing /.settextleading /.currenttextleading /.settextrise /.currenttextrise
  /.setwordspacing /.currentwordspacing /.settexthscaling /.currenttexthscaling /.setPDFfontsize /.currentPDFfontsize
  /.setdistillerparams

  % undefining these causes errors/incorrect output
  %/.settextrenderingmode /.setblendmode /.begintransparencygroup /.settextknockout /check_r6_password /.setstrokeoverprint /.setfilloverprint
  %/.currentstrokeoverprint /.currentfilloverprint /.currentfillconstantalpha /.currentstrokeconstantalpha
  ]
  {systemdict exch .forceundef} forall
  //systemdict /UndefinePDFOperators .forceundef
} .bind executeonly def % must be bound and hidden for .forceundef

% If we delayed binding, make it possible to do it later.
/.bindnow {
  currentuserparams /IdiomRecognition .knownget {
    1 dict dup /IdiomRecognition //false put setuserparams
  } if
  //systemdict begin .bindoperators end
  % Temporarily disable the typecheck error.
  errordict /typecheck 2 copy get
  errordict /typecheck { pop } put	% pop the command
  0 1 .delaycount 1 sub { .delaybind exch get .bind pop } for
  //systemdict /.delaybind {} .forceput	% reclaim the space
  //systemdict /.bindnow .forceundef	% ditto
  put
  SAFER {
    //systemdict /SAFERUndefinePostScriptOperators get exec
  } if
  //systemdict /UndefinePostScriptOperators get exec
  //systemdict /UndefinePDFOperators get exec
  //systemdict /.forcecopynew .forceundef	% remove temptation
  //systemdict /.forcedef .forceundef		% ditto
  //systemdict /.forceput .forceundef		% ditto
  //systemdict /.undef .forceundef		    % ditto
  //systemdict /.forceundef .forceundef		% ditto
  currentuserparams /IdiomRecognition known {
    1 dict dup /IdiomRecognition 4 -1 roll put setuserparams
  } if
} .bind odef

% Turn off array packing, since some PostScript code assumes that
% procedures are writable.
//false setpacking

(END INIT) VMDEBUG

/.currentuserparams where {
  pop
        % Remove real user params from psuserparams.
  mark .currentuserparams counttomark 2 idiv {
    pop psuserparams exch undef
  } repeat pop
        % Update the copy of the user parameters.
  mark .currentuserparams counttomark 2 idiv {
    userparams 3 1 roll .forceput	% userparams is read-only
  } executeonly repeat pop
        % Turn on idiom recognition, if available.
  currentuserparams /IdiomRecognition known {
    /IdiomRecognition //true .definepsuserparam
  } if
  psuserparams readonly pop
  systemdict /.definepsuserparam undef
        % Save a copy of userparams for use with save/restore
        % (and, if implemented, context switching).
  .currentglobal //false .setglobal
     mark userparams { } forall .dicttomark readonly
     /userparams exch .forcedef		% systemdict is read-only
  .setglobal
} if
/.currentsystemparams where {
  pop
        % Remove real system params from pssystemparams.
  mark .currentsystemparams counttomark 2 idiv {
    pop pssystemparams exch .forceundef
  } executeonly repeat pop
} if

% Set up AlignToPixels :

/AlignToPixels where {
  mark /AlignToPixels 2 index /AlignToPixels get .dicttomark setuserparams
  /AlignToPixels undef
} if

% Set up GridFitTT :

/GridFitTT where {
  mark /GridFitTT 2 index /GridFitTT get .dicttomark setuserparams
  /GridFitTT undef
} if

% Establish local VM as the default.
//false /setglobal where { pop setglobal } { .setglobal } ifelse
$error /.nosetlocal //false put

(END GLOBAL) VMDEBUG

% .savelocalstate is part of Display PostScript (if included). Part of the function of
% the .savelocalstate routine is to store the 'initial saved gstate' (savedinitialgstate)
% in systemdict. The code in dps1.c, gstate_check_space, disallows writing or creating
% gstates in global VM in certain conditions. If we execute setpagedevice before we
% reach this point, we must ensure that we do so using /..StartupGlobal so that
% the dictionary is defined in global VM, because the gstate contains a pointer to the
% device dictionary, and if that is allocated in local VM we will fail the gstate check.
/.savelocalstate where {
        % If we might create new contexts, save away copies of all dictionaries
        % referenced from systemdict that are stored in local VM,
        % and also save a copy of the initial gstate.
  pop .savelocalstate
} {
        % If we're *not* running in a multi-context system and FAKEFONTS is
        % defined, add the fake fonts to LocalFontDirectory.
  .definefakefonts	% current VM is local
} ifelse

% Execute scheduled inits :
//.execute_scheduled_inits exec
currentdict /.execute_scheduled_inits undef
currentdict /.delayed_init_queue undef

% Make global and local FontDirectory read-only.
FontDirectory readonly pop
/GlobalFontDirectory where { pop GlobalFontDirectory readonly pop } if

% Remove systemdict entries for things that have been bound in where used
% and that shouldn't be accessible by name, and close up systemdict.
currentdict /filterdict .undef
currentdict /.cidfonttypes .undef
currentdict /.colorrenderingtypes .undef
currentdict /.formtypes .undef
currentdict /.halftonetypes .undef
currentdict /.imagetypes .undef
currentdict /.imagemasktypes .undef
currentdict /.patterntypes .undef
currentdict /.shadingtypes .undef
currentdict /.wheredict .undef
currentdict /.renderingintentdict .undef

% If we are using DELAYBIND we have to defer the undefinition
% until .bindnow.
DELAYBIND not {
  SAFER {
    //systemdict /SAFERUndefinePostScriptOperators get exec
  } if
  //systemdict /UndefinePostScriptOperators get exec
  //systemdict /UndefinePDFOperators .forceundef
} if
end

% Clean up VM, and enable GC. Use .vmreclaim to force the GC.
/vmreclaim where
 { pop NOGC not { 2 .vmreclaim 0 vmreclaim } if
 } if

% Do this before systemdict is locked (see below for additional CETMODE setup using gs_cet.ps)
systemdict /CETMODE .knownget {
  {
    (gs_cet.ps) runlibfile
  } if
} if
systemdict /.makeoperator .undef	% must be after gs_cet.ps
systemdict /.setCPSImode .undef		% must be after gs_cet.ps

DELAYBIND not {
  systemdict /.bindnow .undef       % We only need this for DELAYBIND
  systemdict /.forcecopynew .undef	% remove temptation
  systemdict /.forcedef .undef		% ditto
  systemdict /.forceput .undef		% ditto
  systemdict /.forceundef .undef	% ditto
} if

% Can't remove this one until the last minute :-)
DELAYBIND not {
systemdict /.undef .undef
} if

WRITESYSTEMDICT {
   SAFER {
       (\n *** WARNING - you have selected SAFER, indicating you want Ghostscript\n) print
       (               to execute in a safer environment, but at the same time\n) print
       (               have selected WRITESYSTEMDICT. Unless you use this option with\n) print
       (               care and specifically, remember to execute code like:\n) print
       (                      "systemdict readonly pop"\n) print
       (               it is possible that malicious code may be able to evade the\n) print
       (               limited security offered by the SAFER option.\n) print
   }if
}
{
     systemdict readonly pop
} ifelse

(END GC) VMDEBUG

% The Adobe AGM_Core used by Illustrator 9 has some code that breaks
% if the 'product' is not (Adobe PostScript Parser). A bug has been
% submitted to Adobe since this also fails with Acrobat Distiller.
% As a temporary work around, the following HACK will work for
% devices without spot color support. Once Ghostscript can
% support DeviceN and spot color separations this will need to
% be 'true' in some cases.
userdict /AGM_preserve_spots //false put

% The interpreter will run the initial procedure (start).
Youez - 2016 - github.com/yon3zu
LinuXploit