Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!chinacat!woody
From: woody@chinacat.Unicom.COM (Woody Baker @ Eagle Signal)
Newsgroups: comp.lang.postscript
Subject: Re: PS -> C code
Summary: well...
Message-ID: <1409@chinacat.Unicom.COM>
Date: 19 Jul 90 04:13:22 GMT
References: <1990Jul18.002555.13464@gpu.utcs.utoronto.ca> <6676@helios.TAMU.EDU>
Organization: a guest of Unicom Systems Development, Austin
Lines: 32



While I'n not aware of any ps to 'C' converters, I have done a bit of
experimenting along the line of creating postscript programs in 'C'.
Basicaly, I wrote a short program that read in a postscript file line
at a time, and wrapped printf () statements around each line.  When it
got done, there was a 'C' program consisting of lines of printf's.
Then I went in and modified the lines that needed variables such that
the printf's would generate lines of postscript with substitued variables.
I did this first with BASIC.  The technique is powerful and works.

In addition, I created a set of routines (a small number) that bear the
same names as postscript primatives, as well as routines to draw boxes etc.
These functions take parameters and generate postscript code.  Since
'C' (mercifully) is not a RPN language, you do have some difficulty with
parameters, but it turns out that you can create routines that are essentialy
the same in functionality as ps routines.  This drasticaly eases the
creation of programs that produce postscript code.

example

curveto(x1,y1,x2,y2,x3,y3) /* assumes a current point is set already */
int x1,y1,x2,y2,x3,y3;
{
	printf("%d %d %d %d %d %d curveto ",x1,y1,x2,y2,x3,y3);

}

etc, etc.

Cheers
Woody