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TRACEOP.PS
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1991-05-25
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928b
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30 lines
% Trace individual operators.
% <opname> traceop prints vmem usage
% <opname> <numargs|preproc> prints arguments or runs proc before
% <opname> <numargs|preproc> <numresults|postproc>
% also prints results or runs proc after
% Define the default "before" action
/tracebefore { vmstatus 3 .traceprint } 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
/traceop
{ userdict begin
dup type /nametype eq { { tracebefore } } if
1 index type /nametype eq { { traceafter } } if
/.tpost exch def /.tpre exch def /.tname exch def
[ .tname /=only cvx ( ) /print cvx
/.tpre load /.traceprint cvx systemdict .tname /get cvx /exec cvx
/.tpost load /.traceprint cvx (\n) /print cvx
] cvx .tname exch def end
} bind def
/bind { } def % disable