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Hi monks, I am busying myself with cgi-fun and thought it sensible to add in a few safe-guards so that if nothing is entered into the form, the user gets a polite message, not an internal server error. Anyway, I thought this simple reg-exp would work (below). Can anyone suggest why is might be going wrong. Many thanks.
# snippet from script 1 print qq(<FORM METHOD="post" ACTION="http://localhost/~sm125/cgi-bin/f +rontpage.cgi"><h3>Enter: </h3><INPUT TYPE="TEXT" NAME="box" SIZE="10" +><h3>Enter: </h3><INPUT TYPE="text" NAME="value" SIZE="10"><INPUT TYP +E="SUBMIT" value="go"></FORM>);
second script
# snippet from frontpage.cgi #!/biol/programs/perl/bin/perl -w use strict; use CGI qw(:standard); my $cgi; $cgi = new CGI; use CGI::Carp qw(fatalsToBrowser); my $box = $cgi->param('box'); my $value = $cgi->param('value'); if (($box !~ /\w+/) && ($value !~ /\w+/)) { print "You haven't entered anything on the form"; print STDOUT $cgi->end_html; exit (0); }

In reply to CGI + safeguards by Anonymous Monk

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