=head1 NAME Template::Plugin::Meta::Interpolate - Allow evaluation of META parameters =head1 SYNOPSIS [% USE Meta::Interpolate %] [% META title = '-"${user.username} at Our Site"' %] Show username in title [% META title='-"404 - " _ loc("File not found")' %] The value is enclosed in C<''>. The initial C<-> tells us to interpolate the rest as if it said: [% title = "404 - " _ loc("File not found") %] The C<_> is a concatenation operator. And L is the translation function. =head1 DESCRIPTION It is common to wrap Template Toolkit templates in a base template, then use the meta function to set a page tittle. [% META title = 'Book List' %] Unfortunately the tittle can only contain static text. This plugin allow you to also use variables and expressions. If value starts with a '-', the rest of value will be evaluated as a TT expression. (No expressions are normally allowed in META.) If value starts with a '~', the rest of value will be evaluated as a TT string with variable interpolation. It's the same as for '-' but with the extra "" around the value. It does not sets the variable if it's already true. That enables you to set it in another way. =head2 Example [* META otitle = '-otitle=["[_1]s administration pages", site.name]' *] The normal use is to set the variable with the result of the template output. But to give complex values to a variable, like a list, you can do it as above. =head2 In wrapper In your wrapper set your title like this. [% template.title or "My site name!" %] =head1 AUTHOR Jonas Liljegren jonas@paranormal.se =head1 COPYRIGHT Copyright (C) 2004-2009 Jonas Liljegren. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =head1 CPAN maintainer Runar Buvik CPAN ID: RUNARB runarb@gmail.com http://www.runarb.com =head1 Git L =head1 SEE ALSO L