How to use Maxima from within C++ program (CGI)?

GiNaC library have a parser so I can easy transform
strings to expressions and vice versa in C++.

The question about Lisp is wether is possible to make
CGI with it? In C++ I have cgicc library that is doing
all the dirty work.

Yigal Asnis

--- Richard Fateman <fateman at EECS.Berkeley.EDU> wrote:

> The main issue in my view is that the C++ program is
> going to send/receive strings of characters.
> 
> If the strings of characters are just numeric, then
> you are not using maxima very much.
> If the strings of characters are symbolic names,
> operations, etc,  then you are either doing trivial
> things with them,
> like printing them,  or you are writing, in C++, a
> parser. Which suggests that you should just be
> writing in Lisp.
> 
> If you are just printing stuff, e.g. into html, then
> you could learn how to do so from lisp, and be done
> with it.
> 
> The advantages you get from making a C++ interface
> are
> (1) you know C++ and don't know Lisp.  
> (2) you have some old programs you want to use in
> C++.
> 
> The better solution is to (a) learn lisp and (b) use
> the old C++ programs by calling THEM FROM LISP.
> 
> I anticipate these suggestions will fall on deaf
> ears, but I figure it is worth stating, every so
> often.
> RJF
> 
> 
> ----- Original Message -----
> From: Robert Dodier <robert.dodier at gmail.com>
> Date: Tuesday, August 7, 2007 6:14 pm
> Subject: Re: [Maxima] How to use Maxima from within
> C++ program (CGI)?
> 
> > On 8/7/07, Yigal Asnis <yigalasnis at yahoo.com>
> wrote:
> > 
> > > How can I use Maxima from within C++?
> > >
> > > By the way, two more general questions:
> > > 1. May be there is better platform for using
> open
> > > source math software like Maxima, SAGE, Pari,
> Yacas in
> > > web site? May be PHP or Perl or other option?
> > > 2. Where can I get more information about
> building web
> > > site for interactive math with open source
> software?
> > 
> > I think there have been several projects to run
> Maxima as a
> > back end for CGI output. Take a look at
> >
> http://maxima.sourceforge.net/relatedprojects.shtml
> > from which you might get some ideas.
> > I think SAGE in particular could be a good source
> of ideas.
> > 
> > I suspect it's going to be easier to use a
> language with
> > built-in regular expression functions. This might
> suggest
> > Perl or Python. But Lisp would be a good choice
> because
> > then you can call Maxima functions directly from
> your
> > CGI program. Just replace the top-level processing
> loop
> > with something that reads CGI inputs instead of
> the console.
> > 
> > The main problem with using Maxima as a
> computation engine
> > is that Maxima asks questions sometimes (because
> it assumes
> > there is always someone at the console). This
> problem has been
> > handled in different ways by different projects. I
> don't know
> > what is the best solution at present.
> > 
> > You might find share/contrib/maxima-server.lisp
> useful.
> > It calls fork to launch Maxima sessions, so it is
> faster to
> > start a new session than executing Maxima just
> once.
> > maxima-server.lisp only works with SBCL.
> > 
> > HTH
> > Robert Dodier
> > _______________________________________________
> > Maxima mailing list
> > Maxima at math.utexas.edu
> > http://www.math.utexas.edu/mailman/listinfo/maxima
> > 
> 



       
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