[Gs-devel] Off topic? Use of DSC parser in GS

[Russell Lang]

> What do I need to link against?  I am going to try tom compile dscutil.cpp in
> standalong mode on Solaris 2.7...  I have gs 7.00 compiled and installed
> already.

When using dscutil.cpp, the DSC parser is independent of Ghostscript.
If you use the files from GSview, you would compile with:
gcc -c dscparse.cpp
gcc -c -DSTANDALONE -DUNIX dscutil.cpp
gcc -o dscutil dscutil.o dscparse.o

To parse t.ps, use 
./dscutil t.ps

Note that you can also access the dsc parser from PostScript code 
within Ghostscript.  This is used by the pdfwrite device to gain some 
extra information about the PostScript input file.
This work was done by Dan Copy and Ray Johnston (I think).

> On Wed, 9 May 2001, Russell Lang wrote:
> 
> > > I am looking for sample code that uses the DSC parser built into GS.
> > >
> > > In particular, I am after a tool for verifying that a PS document conforms to
> > > the DSC specifiation, and all Begin/End pairs match up as they should...
> > >
> > > Matching of Begin/End comments is a very imnportant prerequisite for a project I
> > > am currently working on...
> >
> > The DSC parser doesn't verify everything, but it does check for
> > matching Begin/End pairs and gives a text warning if they don't
> > match.
> >
> > There are two C modules to the DSC parser.  Ghostscript uses only the
> > first, dscparse.c/cpp.  The second is only in GSview and provides
> > sample code for how to use it.  This is dscutil.cpp.


Russell Lang                   gsview at ghostgum.com.au
Ghostgum Software Pty Ltd      http://www.ghostgum.com.au/