Re: Postscript Parser

pd@world.std.com (Peter Davis)
21 Oct 1997 21:23:32 -0400

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From: pd@world.std.com (Peter Davis)
Newsgroups: comp.lang.postscript,comp.compilers
Date: 21 Oct 1997 21:23:32 -0400
Organization: The World @ Software Tool & Die
References: 97-10-091
Keywords: parse, comment

On 17 Oct 1997 22:49:37 -0400, David Withers <withers@cs.man.ac.uk> wrote:
> I'm trying to create a tool that recognises rectangles and text in
> PostScript diagrams and makes HTML image maps. Does anyone know of a
> PostScript parser that creates AST's or a grammar that I can use to
> make one?


The simplest approach would be to create a short PostScript prolog
which redefines certain operators to test for "rectangle-ness," and
then writes the appropriate HTML to a file. You would probably want
to redefine stroke, fill, rectstroke and rectfill.


This will not be completely bullet-proof, but it's simple, and will
probably cover all the cases you need to worry about.


-pd
--
Peter Davis
http://world.std.com/~pd
[Sounds good to me, leverage that existing Postscript interpreter. -John]
--

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