365 lines
7.9 KiB
HTML
365 lines
7.9 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>GT::Template::Vars - Tied hash for template tags handling</title>
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<link rev="made" href="mailto:root@penguin.office.gossamer-threads.com" />
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<style type="text/css">
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/* $MVD$:fontset("Untitled Font Set 1","ARIEL","HELVETICA","HELV","SANSERIF") */
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</style>
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</head>
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<body style="background-color: white">
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<p><a name="__index__"></a></p>
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<!-- INDEX BEGIN -->
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<ul>
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<li><a href="#name">NAME</a></li>
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<li><a href="#synopsis">SYNOPSIS</a></li>
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<li><a href="#description">DESCRIPTION</a></li>
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<li><a href="#interface">INTERFACE</a></li>
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<ul>
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<li><a href="#accessing_values">Accessing values</a></li>
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<li><a href="#setting_values">Setting values</a></li>
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<li><a href="#keys__exists">Keys, Exists</a></li>
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</ul>
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<li><a href="#see_also">SEE ALSO</a></li>
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<li><a href="#maintainer">MAINTAINER</a></li>
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<li><a href="#copyright">COPYRIGHT</a></li>
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<li><a href="#version">VERSION</a></li>
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</ul>
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<!-- INDEX END -->
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<hr />
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<p>
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</p>
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<h1><a name="name">NAME</a></h1>
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<p>GT::Template::Vars - Tied hash for template tags handling</p>
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<p>
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</p>
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<hr />
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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<pre>
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my $vars = GT::Template->vars;
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print $vars->{foo};</pre>
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<p>
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</p>
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<hr />
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<h1><a name="description">DESCRIPTION</a></h1>
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<p>This module is designed to provide a simple interface to GT::Template tags from
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Perl code. Prior to this module, the <code>tags()</code> method of GT::Template returned a
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hash reference which could contain all sorts of different values - scalar
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references, LVALUE references, GT::Config objects, etc. This new interface
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provides a tied hash reference designed to aid in retrieving and setting values
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in the same way template variables are retrieved and set from templates.</p>
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<p>
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</p>
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<hr />
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<h1><a name="interface">INTERFACE</a></h1>
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<p>
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</p>
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<h2><a name="accessing_values">Accessing values</a></h2>
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<p>Accessing a value is simple - just access <code>$vars->{name}</code>. The regular
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rules of escaping apply here: if the value would have been HTML-escaped in the
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template, it will be escaped when you get it.</p>
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<p>
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</p>
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<h2><a name="setting_values">Setting values</a></h2>
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<p>Setting a value is easy - simply do: <code>$vars->{name} = $value;</code>. ``name''
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can be anything GT::Template recognises as a variable, so
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<code>$vars->{'name.key'}</code> would set <code>->{name}->{key}</code> (see
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<a href="glist.cgi?do=admin_gtdoc&topic=/GT/Template/Tutorial.html#advanced_variables_using_references">Advanced variables using references in the GT::Template::Tutorial manpage</a> for more
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information on complex variables).</p>
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<p>The regular rules of escaping apply here: if escaping is turned on, a value you
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set will be escaped when accessed again via $vars or in a template. If you
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want to set a tag containing raw HTML, you should set a scalar reference, such
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as: <code>$vars->{name} = \$value;</code>.</p>
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<p>
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</p>
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<h2><a name="keys__exists">Keys, Exists</a></h2>
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<p>You can use <code>keys %$vars</code> to get a list of keys of the tag object, but you
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should note that while <code>$vars->{"a.b"}</code> is valid and
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<code>exists $vars->{"a.b"}</code> may return true, it will <strong>not</strong> be present in the
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list of keys returned by <code>keys %$vars</code>.</p>
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<p>
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</p>
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<hr />
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<h1><a name="see_also">SEE ALSO</a></h1>
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<p><a href="glist.cgi?do=admin_gtdoc&topic=/GT/Template.html">the GT::Template manpage</a></p>
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<p><a href="glist.cgi?do=admin_gtdoc&topic=/GT/Template/Tutorial.html">the GT::Template::Tutorial manpage</a></p>
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<p>
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</p>
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<hr />
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<h1><a name="maintainer">MAINTAINER</a></h1>
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<p>Jason Rhinelander</p>
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<p>
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</p>
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<hr />
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<h1><a name="copyright">COPYRIGHT</a></h1>
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<p>Copyright (c) 2005 Gossamer Threads Inc. All Rights Reserved.
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<a href="http://www.gossamer-threads.com/">http://www.gossamer-threads.com/</a></p>
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<p>
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</p>
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<hr />
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<h1><a name="version">VERSION</a></h1>
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<p>Revision: $Id: Vars.pm,v 1.3 2005/03/05 01:17:20 jagerman Exp $</p>
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</body>
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</html>
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