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- % Copyright (C) 1992, 1993, 1994 Aladdin Enterprises. All rights reserved.
- %
- % This file is part of Aladdin Ghostscript.
- %
- % Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- % or distributor accepts any responsibility for the consequences of using it,
- % or for whether it serves any particular purpose or works at all, unless he
- % or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- % License (the "License") for full details.
- %
- % Every copy of Aladdin Ghostscript must include a copy of the License,
- % normally in a plain ASCII text file named PUBLIC. The License grants you
- % the right to copy, modify and redistribute Aladdin Ghostscript, but only
- % under certain conditions described in the License. Among other things, the
- % License requires that the copyright notice and this notice be preserved on
- % all copies.
-
- % 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.\n) print
- pop userdict
- } if
- /.tddict exch def /.tdict exch def /.tname exch cvlit 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
- .tdict .tname get type /operatortype eq
- { .tname exch .makeoperator
- } if
- .tddict exch .tname exch put end
- } bind def
- /tracebind /bind load def % in case someone wants to put it back
- /bind { } def % disable
-
- .setglobal
- setpacking
-