Problems with creating a form

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I've tried to create a form in a following way:

print $query->header(), $query->start_html('XX');
print $query->start_form(-method=>'post', -action=>'program.pl');
print $query->table(
    $query->Tr( # line 167
        $query->td(...)
    ),
         ...
);
print $query->end_form();
print $query->end_html();
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It doesn't work allthough I have done same thing exactly the same way earlier. error.log says Undefined subroutine &main::Tr called at /DOCS/Department/SG/cgi-bin/Projects/projects.pl line 167. So, does anyone have any good guess, what's wrong?
In my script file I've got following specifications

use CGI qw(:standard);
my $query = new CGI;
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Comment on Problems with creating a form Select or Download Code

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Re: Problems with creating a form by Masem (Monsignor) on Mar 12, 2001 at 19:38 UTC
Most likely, Tr in $query->Tr shouldn't be uppercase .. all of CGI's functions that I can think of are all lowercase, and this would be an odditiy if just ->Tr was... Dr. Michael K. Neylon - mneylon-pm@masemware.com \|\| "You've left the lens cap of your mind on again, Pinky" - The Brain	[reply]
Re: Re: Problems with creating a form by mirod (Canon) on Mar 12, 2001 at 19:52 UTC
Actually `tr` is already used, it's the built-in `tr///`, hence the CGI methid/function is Tr, something that trips everyone (and you!) at least once. Update: Aaaarrrghhh! merlyn is right (see below) I always use the function version, and I have been bitten (several times, I'm a slow learner ;--( by it, so I got a little too paranoid. All my apologies to masem. RE-Update: after further testing, my first version was right, it _is_ `Tr`, whether using the function or the method. merlyn is wrong there. Re-Re-Update: as the rep of this node go down and the one of merlyn's go up I guess I have to prove my point, so try this and then change `Tr` to `tr` ;--) `perl -e 'use CGI; my $q= new CGI; print $q->Tr, "\n";'` Other upper-cased function/methods are: `Select, Link, Delete, Accept` and `Sub`.	[reply] [d/l]
Re: Re: Re: Problems with creating a form by merlyn (Sage) on Mar 12, 2001 at 20:10 UTC
Not quite. If you use the method version, it's `tr`. If you use the function version (my preferred), it's `Tr`. The problem is that the code at the head of this thread is using the method version, but the function capitalization. -- Randal L. Schwartz, Perl hacker update: I'm wrong. I mis-remembered.	[reply] [d/l] [select]
Re: Re: Problems with creating a form by Anonymous Monk on Mar 12, 2001 at 20:30 UTC
Actually `Tr` should be uppercase. I just had a typo in one line: I had written `$query-Tr` instead of `$query->Tr`. The error message in error.log wonders me though...	[reply] [d/l] [select]