If I understand you correctly, this does what you want.
my $type = shift || 'CGI';
my $obj = $type->new;
print ref $type;
The trick is to use require instead of use, as require is executed at runtime (when you will know which object you want) as opposed to use which is executed at compile time (when you won't know what you want).
This will work as long as you're using pure OO modules which don't export anything that you need. If you need to use exported data then you'll have to add a call to:
After the call to require.
European Perl Conference - Sept 22/24 2000, ICA, London
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||