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Template::Modules(3)	       User Contributed Perl Documentation	     Template::Modules(3)

       Template::Modules - Template Toolkit Modules

Template Toolkit Modules
       This documentation provides an overview of the different modules that comprise the
       Template Toolkit.

       The Template module is the front-end to the Template Toolkit for Perl programmers.

	   use Template;
	   my $tt = Template->new();
	   $tt->process('hello.html', message => 'Hello World');

       The Template::Base module implements a base class from which the other Template Toolkit
       modules are derived.  It implements common functionality for creating objects, error
       reporting, debugging, and so on.

       The Template::Config module defines the configuration of the Template Toolkit for your
       system. It is an example of a factory module which is responsible for instantiating the
       various other modules used in the Template Toolkit.

       For example, the Template::Config module defines the $STASH package variable which
       indicates which version of the Template::Stash you are using by default.  If you elected
       to use the faster XS stash when you installed the Template Toolkit, then this will be set

	   $STASH = 'Template::Stash::XS';

       Otherwise you'll get the regular Perl stash:

	   $STASH = 'Template::Stash';

       This approach means that other parts of the Template Toolkit don't have to worry about
       which stash you're using.  They just ask the Template::Config module to create a stash of
       the right kind.

       The Template::Constants defines a number of constants that are used by the Template

       For example, the ":chomp" tagset defines the "CHOMP_???" constants that can be used with
       the "PRE_CHOMP" and "POST_CHOMP" configuration options.

	   use Template::Constants ':chomp';
	   my $tt = Template->new({

       The Template::Context module defines a runtime context in which templates are processed. A
       context keeps track of all the templates, variables, plugins, and other resources that are
       available (either directly or through delegate objects) and provides methods to fetch,
       store, and perform various operations on them.

       The Template::Document module implements a compiled template document object.  This is
       generated by the Template::Parser module.

       The Template::Exception module implements an exception object which is used for runtime
       error reporting.

       The Template::Filters module implements a filter provider.  It includes the core
       collection of filters that can be used via the "FILTER" directive.

       The Template::Iterator module implements a data iterator which steps through each item in
       a list in turn.	It is used by the "FOREACH" directive.	Within a "FOREACH" block, the
       "loop" variable always references the current iterator object.

	   [%  FOREACH item IN list;
		 IF loop.first;
		    # first item in loop
		 ELSIF loop.last;
		    # last item in loop
		    # any other item in loop

       The Template::Namespace::Constants module is used internally to represent constants. These
       can be resolved immediately at the point that a template is compiled.

       The Template::Parser module is used to parse a source template and turn it into Perl code
       which can be executed.

       The Template::Plugin module is a base class for Template Toolkit plugins that can be
       loaded on demand from within a template using the "USE" directive.

       The Template::Plugins module is the plugins provider.  It loads and prepares plugins as
       and when they are requested from within a template.

       The Template::Provider module is responsible for loading, compiling and caching templates.

       The Template::Service module implements a service layer that sits just behind the Template
       module, and just in front of a Template::Context. It handles each request to process a
       template (forwarded from the Template module). It adds any headers and/or footers
       (specified via the "PRE_PROCESS" and "POST_PROCESS" options), applies any wrapper (the
       "WRAPPER" option) and catches any errors returned (the "ERRORS" option).

       The Template::Stash module is used to fetch and store template variables.  It implements
       all of the magic associated with the dot operator.

       The Template::Stash::XS module is a high-speed implementation of Template::Stash written
       in C.

       The Template::Test module is used to automate the Template Toolkit test scripts.

perl v5.12.1				    2008-11-13			     Template::Modules(3)
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