%    Copyright (C) 1992, 1993, 1994, 1999 Aladdin Enterprises.  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.% % For more information about licensing, please refer to% http://www.ghostscript.com/licensing/. For information on% commercial licensing, go to http://www.artifex.com/licensing/ or% contact Artifex Software, Inc., 101 Lucas Valley Road #110,% San Rafael, CA  94903, U.S.A., +1(415)492-9861. % $Id: traceop.ps,v 1.4 2002/02/21 21:49:28 giles Exp $% Trace individual operators or procedures.% <opref> is <opname> or <opname> <dict>%    (dict defaults to dict where op is currently defined, if writable;%    otherwise uses userdict)% <opref> traceop prints vmem usage before;% <opref> <numargs|preproc> prints arguments or runs proc before;% <opref> <numargs|preproc> <numresults|postproc>%    also prints results or runs proc after.% If traceflush is true, flush the output after each printout./traceflush true def currentpacking true setpacking.currentglobal true .setglobal % Define the default "before" action/tracebefore { vmstatus 3 traceprint pop pop pop } def % Define the default "after" action/traceafter { } def /traceprint {  dup type /integertype eq {    1 sub -1 0 { ( ) print index ==only } for  } {    exec  } ifelse} bind def/traceend {  traceflush { flush } if} bind def/traceop {  userdict begin  dup type dup /nametype eq exch /dicttype eq or { { tracebefore } } if  1 index type dup /nametype eq exch /dicttype eq or { { traceafter } } if  /.tpost exch def /.tpre exch def  dup type /dicttype ne {    dup where not { userdict 1 index {} put userdict } if  } if  dup dup wcheck not {    (Warning: substituting userdict for non-writable dictionary.) =    pop userdict  } if  /.tddict exch def   /.tdict exch def   /.tname exch cvlit def  .currentglobal [  .tname /=only cvx ( ) /print cvx    /.tpre load /traceprint cvx /traceend cvx    .tdict .tname get /.tdef 1 index cvlit def    dup xcheck {      dup type dup /arraytype eq exch /packedarraytype eq or {	/exec cvx      } if    } if    /.tpost load /traceprint cvx () /= cvx /traceend cvx  .tdef gcheck /.tpre load gcheck and /.tpost load gcheck and .setglobal  ] cvx  .tdef type /operatortype eq {    .tname exch .makeoperator  } if  exch .setglobal  .tddict exch .tname exch put  end		% userdict} bind def/tracebind /bind load def	% in case someone wants to put it back/bind { } def		% disable .setglobalsetpacking