I'm finishing up v0.01 of Excel::Template for posting to CPAN and I've run into an interesting situation with CGI scripts. I've got MP2 installed, but am using it right now for CGI scripts. In that setup, it looks like MP1 (no $ENV{MOD_PERL} is defined). But, you cannot TIEHANDLE to Apache - you have to tie to Apache::IO or Apache::Filter. But, AFAIK, those don't exist under MP1. I've got the following code written, but it doesn't work quite right ... any suggestions? 
sub output
{
    my $self = shift;

    # mod_perl 2.x
    if ( $ENV{MOD_PERL} )
    {
        eval {
            require Apache::IO;
            Apache::IO->import;
        }; if ($@) {
            die "Cannot figure out what to do under Apache!\n";
        }

        tie *XLS, 'Apache::IO';
        binmode *XLS;
        return $self->write_file(\*XLS);
    }
    # mod_perl 1.x (or CGI under mod_perl 2.x)
    elsif ( $ENV{GATEWAY_INTERFACE} )
    {
        my $module_name;
        eval {
           require Apache;
           Apache->import;
           $module_name = 'Apache';
        }; if ($@) {
            die "Cannot figure out what to do under Apache!\n";
        }

        tie *XLS, $module_name;
        binmode *XLS;
        return $self->write_file(\*XLS);
    }
    # CGI (or non-WWW) behavior
    else
    {
        $self->write_file('-');
    }
}

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------
We are the carpenters and bricklayers of the Information Age.

The idea is a little like C++ templates, except not quite so brain-meltingly complicated. -- TheDamian, Exegesis 6

... strings and arrays will suffice. As they are easily available as native data types in any sane language, ... - blokhead, speaking on evolutionary algorithms

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.

In reply to Spreadsheet::WriteExcel under mod_perl 2 by dragonchild

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