Re: [MacPerl] relating to ReadParse routine...

["Paul J. Schinder" <schinder@pjstoaster.pg.md.us>]

"David A. Barro" <dab112@cac.psu.edu> writes:
[snip]
}
}   When I run the CGI in MacPerl, I get this error:
}
}   # Undefined subroutine &main::ReadParse called.
}   File 'Columbia HD:WebSTAR 2.1:asgt1.cgi'; Line 4

Two things you need to learn: what the error message means and how to read
the pod documentation that comes with CGI.pm.  The error message tells you
exactly what's wrong: "use CGI" is not importing ReadParse into the
namespace of your script.  Your script looks for a ReadParse in the main
namespace (that's why it's complaining about &main::ReadParse) and doesn't
find it.

Reading the pod tells you exactly how to use ReadParse.  Start up Shuck
(it's in your MacPerl folder if you don't already know about it),
Command-O, navigate to your MacPerl lib folder, and open CGI.pm.  Command-F
ReadParse, and you'll see that you'll find this example

use CGI;
CGI::ReadParse;
print "The value of the antique is $in{antique}.\n";

In other words, you have to *tell* Perl where to find ReadParse by giving
it the full "path" to the routine.

Looking at the CGI.pm source, it looks like you could also say

use CGI qw(:cgi-lib);
ReadParse;


}
}   I looked at the code in CGI.pm (as if I'd know what
}   it was doing) and I definitely found ReadParse in there.
}
}   So my question(s) is/are: Am I really using the
}   ReadParse routine correctly??  That you specify the
}   name of what will be an associative array and the
}   elements will be referenced by the value="_____" fields
}   that were used in your original HTML code?
}
}   This also includes the question: I think I'm taking for
}   granted the notion of the MacPerl CGI script "accepting"
}   the data from my HTML form... How does it really receive
}   it??  Does it relate to the variable QUERY_STRING ?? (Or
}   is this strictly a Un*x thing??
}
}   I appreciate everyone's patience with me in all this.

The pod should tell you the answers to the CGI.pm related questions.  My
experience with MacPerl CGI's is extremely limited, but I believe the CGI
glue
works with the HTTP server to provide the standard environment variables,
including QUERY_STRING.

}
}Thanks very much in advance,
}
}David Barro
}
}***** Want to unsubscribe from this list?
}***** Send mail with body "unsubscribe" to mac-perl-request@iis.ee.ethz.ch


---
Paul J. Schinder
NASA Goddard Space Flight Center
Code 693, Greenbelt, MD 20771
schinder@pjstoaster.pg.md.us



***** Want to unsubscribe from this list?
***** Send mail with body "unsubscribe" to mac-perl-request@iis.ee.ethz.ch