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- % Copyright (C) 1992 Aladdin Enterprises. All rights reserved.
- %
- % This file is part of Ghostscript.
- %
- % Ghostscript is distributed in the hope that it will be useful, but
- % WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- % to anyone for the consequences of using it or for whether it serves any
- % particular purpose or works at all, unless he says so in writing. Refer
- % to the Ghostscript General Public License for full details.
- %
- % Everyone is granted permission to copy, modify and redistribute
- % Ghostscript, but only under the conditions described in the Ghostscript
- % General Public License. A copy of this license is supposed to have been
- % given to you along with Ghostscript so you can know your rights and
- % responsibilities. It should be in a file named COPYING. Among other
- % things, the copyright notice and this notice must be preserved on all
- % copies.
-
- % Trace individual operators or procedures.
- % <opref> is <opname> or <opname> <dict> (dict defaults to 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
-
- % 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
- /.tdict exch def /.tname exch def
- .tdict dup systemdict eq { pop userdict } if /.tddict exch def
- [ .tname /=only cvx ( ) /print cvx
- /.tpre load /traceprint cvx /traceend cvx
- .tdict .tname get
- dup xcheck
- { dup type dup /arraytype eq exch /packedarraytype eq or
- { /exec cvx
- } if
- } if
- /.tpost load /traceprint cvx (\n) /print cvx /traceend cvx
- ] cvx .tddict exch .tname exch put end
- } bind def
- /tracebind /bind load def % in case someone wants to put it back
- /bind { } def % disable
-