1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
% Copyright (C) 1992, 1993, 1994 Aladdin Enterprises. All rights reserved.
%
% This file is part of GNU Ghostscript.
%
% GNU 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 GNU Ghostscript General Public License for full details.
%
% 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
|
