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John Beidler <[log in to unmask]>
Sun, 6 Jun 1999 23:31:15 -0400
text/plain (46 lines)
Scott and Laura Moody wrote:

> Looking at killer places to use Ada, has
> anyone plugged Ada (like gnat Ada) into the
> Apache web server infrastructure? I am
> looking into this as the traditional "perl"
> applications start to get too big (say 100 lines:-).

You can do CGI in  any language, not just Perl.  TO do CGI you really
need to have the following capabilities:

1.  Read Environmental variables
2.  Call system resources
3.  Manipulate files and directories
4.  String processing (regular expression capability)
5.  Have a hash/associative array capability to simplify processing.

All this can be done in any language, including Ada.  Check out the Ada
CGI package at

http://wuarchive.wustl.edu/languages/ada/swcomps/cgi/cgi.html

Combining that with the GNAT/spitbol stuff should do it.

> I know this is possible from C/C++ modules, so it
> should work from Ada also.
>
> This would be a very powerful capability. ASIS
> could probably be used to generate the
> perl module interfaces that Apache seems to
> need to describe the coupling from the embedded
> language and the applications (something like IDL).
>
> Any previous experience in this would be appreciated.
>
> I am actually looking at this for some XML
> parsing and tree traversal capabilities - written
> in Ada, of course.

Jack Beidler
--
John (Jack) Beidler, Ph.D., Professor of Computer Science
Computing Sciences Department           Mailto:[log in to unmask]
University of Scranton             http://www.cs.UofS.edu/~beidler
Scranton, PA 18510                 (570)941-7774  FAX(570)941-4250

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