plan9fox/sys/lib/ghostscript/ppath.ps

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% Copyright (C) 1989, 1995, 1997 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: ppath.ps,v 1.4 2002/02/21 21:49:28 giles Exp $
% Redefine pathforall for tracing.
% Can't be used recursively.
/# {( )print} def
/-mat matrix def
/-imat matrix def
/-smat { //-mat currentmatrix pop //-imat setmatrix } bind def
/-rmat { //-mat setmatrix } bind def
/-pathforall /pathforall load def
/-p2 { ( ) print exch =only ( ) print =only } bind def
/-dp2 { 2 copy -p2 2 { exch 4096 mul dup cvi dup ( ) print =only sub dup 0 eq { pop } { (+) print =only } ifelse } repeat } bind def
/-tp2 { //-mat itransform -p2 } bind def
/-dict 5 dict def
/pathforall
{ -dict begin
/-close exch def /-curve exch def /-line exch def /-move exch def
end -smat -mat ==only ( setmatrix) =
{2 copy -tp2 ( moveto\t%)print
2 copy -dp2 (\n)print
flush -dict /-move get -rmat exec -smat}
{2 copy -tp2 ( lineto\t%)print
2 copy -dp2 (\n)print
flush -dict /-line get -rmat exec -smat}
{5 index 5 index -tp2 3 index 3 index -tp2 2 copy -tp2 ( curveto\t%)print
5 index 5 index -dp2 3 index 3 index -dp2 2 copy -dp2 (\n)print
flush -dict /-curve get -rmat exec -smat}
{(closepath\n)print flush -dict /-close get -rmat exec -smat}
-pathforall -rmat
}
def
% Just print the current path
/printpath {
{pop pop} {pop pop} {pop pop pop pop pop pop} {} pathforall
} def