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<h1 class="headline">Template</h1>
<h2 class="subhead">Front-end module to the Template Toolkit</h1>
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<ul class="toc">
<li class=""><a href="#SYNOPSIS">SYNOPSIS</a></li>
<li class=""><a href="#DESCRIPTION">DESCRIPTION</a></li>
<li class=""><a href="#METHODS">METHODS</a></li>
<li class="sub"><a href="#method_new">new(\%config)</a></li>
<li class="sub"><a href="#method_process">process($template, \%vars, $output, %options)</a></li>
<li class="sub"><a href="#method_error">error()</a></li>
<li class="sub"><a href="#method_service">service()</a></li>
<li class="sub"><a href="#method_context">context()</a></li>
<li class="sub"><a href="#method_template">template($name)</a></li>
<li class=""><a href="#CONFIGURATION_SUMMARY">CONFIGURATION SUMMARY</a></li>
<li class="sub"><a href="#section_Template_Style_and_Parsing_Options">Template Style and Parsing Options</a></li>
<li class="subsub"><a href="#section_START_TAG_END_TAG">START_TAG, END_TAG</a></li>
<li class="subsub"><a href="#section_TAG_STYLE">TAG_STYLE</a></li>
<li class="subsub"><a href="#section_PRE_CHOMP_POST_CHOMP">PRE_CHOMP, POST_CHOMP</a></li>
<li class="subsub"><a href="#section_TRIM">TRIM</a></li>
<li class="subsub"><a href="#section_INTERPOLATE">INTERPOLATE</a></li>
<li class="subsub"><a href="#section_ANYCASE">ANYCASE</a></li>
<li class="sub"><a href="#section_Template_Files_and_Blocks">Template Files and Blocks</a></li>
<li class="subsub"><a href="#section_INCLUDE_PATH">INCLUDE_PATH</a></li>
<li class="subsub"><a href="#section_DELIMITER">DELIMITER</a></li>
<li class="subsub"><a href="#section_ABSOLUTE">ABSOLUTE</a></li>
<li class="subsub"><a href="#section_RELATIVE">RELATIVE</a></li>
<li class="subsub"><a href="#section_DEFAULT">DEFAULT</a></li>
<li class="subsub"><a href="#section_BLOCKS">BLOCKS</a></li>
<li class="subsub"><a href="#section_AUTO_RESET">AUTO_RESET</a></li>
<li class="subsub"><a href="#section_RECURSION">RECURSION</a></li>
<li class="sub"><a href="#section_Template_Variables">Template Variables</a></li>
<li class="subsub"><a href="#section_VARIABLES">VARIABLES</a></li>
<li class="sub"><a href="#section_Runtime_Processing_Options">Runtime Processing Options</a></li>
<li class="subsub"><a href="#section_EVAL_PERL">EVAL_PERL</a></li>
<li class="subsub"><a href="#section_PRE_PROCESS_POST_PROCESS">PRE_PROCESS, POST_PROCESS</a></li>
<li class="subsub"><a href="#section_PROCESS">PROCESS</a></li>
<li class="subsub"><a href="#section_ERROR">ERROR</a></li>
<li class="subsub"><a href="#section_OUTPUT">OUTPUT</a></li>
<li class="subsub"><a href="#section_OUTPUT_PATH">OUTPUT_PATH</a></li>
<li class="subsub"><a href="#section_DEBUG">DEBUG</a></li>
<li class="sub"><a href="#section_Caching_and_Compiling_Options">Caching and Compiling Options</a></li>
<li class="subsub"><a href="#section_CACHE_SIZE">CACHE_SIZE</a></li>
<li class="subsub"><a href="#section_COMPILE_EXT">COMPILE_EXT</a></li>
<li class="subsub"><a href="#section_COMPILE_DIR">COMPILE_DIR</a></li>
<li class="sub"><a href="#section_Plugins_and_Filters">Plugins and Filters</a></li>
<li class="subsub"><a href="#section_PLUGINS">PLUGINS</a></li>
<li class="subsub"><a href="#section_PLUGIN_BASE">PLUGIN_BASE</a></li>
<li class="subsub"><a href="#section_LOAD_PERL">LOAD_PERL</a></li>
<li class="subsub"><a href="#section_FILTERS">FILTERS</a></li>
<li class="sub"><a href="#section_Customisation_and_Extension">Customisation and Extension</a></li>
<li class="subsub"><a href="#section_LOAD_TEMPLATES">LOAD_TEMPLATES</a></li>
<li class="subsub"><a href="#section_LOAD_PLUGINS">LOAD_PLUGINS</a></li>
<li class="subsub"><a href="#section_LOAD_FILTERS">LOAD_FILTERS</a></li>
<li class="subsub"><a href="#section_TOLERANT">TOLERANT</a></li>
<li class="subsub"><a href="#section_SERVICE">SERVICE</a></li>
<li class="subsub"><a href="#section_CONTEXT">CONTEXT</a></li>
<li class="subsub"><a href="#section_STASH">STASH</a></li>
<li class="subsub"><a href="#section_PARSER">PARSER</a></li>
<li class="subsub"><a href="#section_GRAMMAR">GRAMMAR</a></li>
<li class=""><a href="#DIRECTIVE_SUMMARY">DIRECTIVE SUMMARY</a></li>
<li class="sub"><a href="#section_GET">GET</a></li>
<li class="sub"><a href="#section_CALL">CALL</a></li>
<li class="sub"><a href="#section_SET">SET</a></li>
<li class="sub"><a href="#section_DEFAULT">DEFAULT</a></li>
<li class="sub"><a href="#section_INSERT">INSERT</a></li>
<li class="sub"><a href="#section_PROCESS">PROCESS</a></li>
<li class="sub"><a href="#section_INCLUDE">INCLUDE</a></li>
<li class="sub"><a href="#section_WRAPPER">WRAPPER</a></li>
<li class="sub"><a href="#section_BLOCK">BLOCK</a></li>
<li class="sub"><a href="#section_FOREACH">FOREACH</a></li>
<li class="sub"><a href="#section_WHILE">WHILE</a></li>
<li class="sub"><a href="#section_IF_UNLESS_ELSIF_ELSE">IF / UNLESS / ELSIF / ELSE</a></li>
<li class="sub"><a href="#section_SWITCH_CASE">SWITCH / CASE</a></li>
<li class="sub"><a href="#section_MACRO">MACRO</a></li>
<li class="sub"><a href="#section_FILTER">FILTER</a></li>
<li class="sub"><a href="#section_USE">USE</a></li>
<li class="sub"><a href="#section_PERL_RAWPERL">PERL / RAWPERL</a></li>
<li class="sub"><a href="#section_TRY_THROW_CATCH_FINAL">TRY / THROW / CATCH / FINAL</a></li>
<li class="sub"><a href="#section_NEXT">NEXT</a></li>
<li class="sub"><a href="#section_LAST">LAST</a></li>
<li class="sub"><a href="#section_RETURN">RETURN</a></li>
<li class="sub"><a href="#section_STOP">STOP</a></li>
<li class="sub"><a href="#section_TAGS">TAGS</a></li>
<li class="sub"><a href="#section_COMMENTS">COMMENTS</a></li>
<li class=""><a href="#SOURCE_CODE_REPOSITORY">SOURCE CODE REPOSITORY</a></li>
<li class=""><a href="#AUTHOR">AUTHOR</a></li>
<li class=""><a href="#VERSION">VERSION</a></li>
<li class=""><a href="#COPYRIGHT">COPYRIGHT</a></li>
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<div class="pod">
<div class="section">
<div class="head">
<h1 id="SYNOPSIS" onclick="switch_section(this)" title="Click title to show/hide section content.">SYNOPSIS</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<pre>use Template;
# some useful options (see below for full list)
my $config = {
INCLUDE_PATH => '/search/path', # or list ref
INTERPOLATE => 1, # expand "$var" in plain text
POST_CHOMP => 1, # cleanup whitespace
PRE_PROCESS => 'header', # prefix each template
EVAL_PERL => 1, # evaluate Perl code blocks
};
# create Template object
my $template = Template->new($config);
# define template variables for replacement
my $vars = {
var1 => $value,
var2 => \%hash,
var3 => \@list,
var4 => \&code,
var5 => $object,
};
# specify input filename, or file handle, text reference, etc.
my $input = 'myfile.html';
# process input template, substituting variables
$template->process($input, $vars)
|| die $template->error();</pre>
</div>
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<div class="head">
<h1 id="DESCRIPTION" onclick="switch_section(this)" title="Click title to show/hide section content.">DESCRIPTION</h1>
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</div>
<div class="body">
<p>
This documentation describes the Template module which is the direct Perl
interface into the Template Toolkit. It covers the use of the module and
gives a brief summary of configuration options and template directives.
Please see <a href="../manual/index.html">Template::Manual</a> for the complete reference manual which goes
into much greater depth about the features and use of the Template
Toolkit. The <a href="../tutorial/index.html">Template::Tutorial</a> is also available as an introductory guide to
using the Template Toolkit.
</p>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="METHODS" onclick="switch_section(this)" title="Click title to show/hide section content.">METHODS</h1>
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</div>
<div class="body">
<div class="subsection">
<div class="head">
<h2 id="method_new" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">new(\%config)</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The <code>new()</code> constructor method (implemented by the <a
href="../modules/Template/Base.html#method_new">Template::Base</a>
base class) instantiates a new <code>Template</code> object. A reference
to a hash array of configuration items may be passed as a parameter.
</p>
<pre>my $tt = Template->new({
INCLUDE_PATH => '/usr/local/templates',
EVAL_PERL => 1,
}) || die $Template::ERROR, "\n";</pre>
<p>
A reference to a new <code>Template</code> object is returned, or undef
on error. In the latter case, the error message can be retrieved by
calling <a href="#method_error">error()</a> as a class method or by
examining the <code>$Template::ERROR</code> package variable directly.
</p>
<pre>my $tt = Template->new(\%config)
|| die Template->error(), "\n";
my $tt = Template->new(\%config)
|| die $Template::ERROR, "\n";</pre>
<p>
For convenience, configuration items may also be specified as a list of
items instead of a hash array reference. These are automatically folded
into a hash array by the constructor.
</p>
<pre>my $tt = Template->new(INCLUDE_PATH => '/tmp', POST_CHOMP => 1)
|| die $Template::ERROR, "\n";</pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="method_process" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">process($template, \%vars, $output, %options)</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The <code>process()</code> method is called to process a template. The
first parameter indicates the input template as one of: a filename
relative to <code>INCLUDE_PATH</code>, if defined; a reference to a text
string containing the template text; or a file handle reference (e.g.
<code>IO::Handle</code> or sub-class) or <code>GLOB</code> (e.g.
<code>\*STDIN</code>), from which the template can be read. A reference
to a hash array may be passed as the second parameter, containing
definitions of template variables.
</p>
<pre># filename
$tt->process('welcome.tt2')
|| die $tt->error(), "\n";
# text reference
$text = "<span class="tt">[% INCLUDE header %]</span>\nHello world!\n<span class="tt">[% INCLUDE footer %]</span>";
$tt->process(\$text)
|| die $tt->error(), "\n";
# file handle (GLOB)
$tt->process(\*DATA)
|| die $tt->error(), "\n";
__END__
<span class="tt">[% INCLUDE header %]</span>
This is a template defined in the __END__ section which is
accessible via the DATA "file handle".
<span class="tt">[% INCLUDE footer %]</span></pre>
<p>
By default, the processed template output is printed to
<code>STDOUT</code>. The <code>process()</code> method then returns
<code>1</code> to indicate success. A third parameter may be passed to
the <code>process()</code> method to specify a different output location.
This value may be one of: a plain string indicating a filename which will
be opened (relative to <code>OUTPUT_PATH</code>, if defined) and the
output written to; a file GLOB opened ready for output; a reference to a
scalar (e.g. a text string) to which output/error is appended; a
reference to a subroutine which is called, passing the output as a
parameter; or any object reference which implements a
<code>print()</code> method (e.g. <code>IO::Handle</code>,
<code>Apache::Request</code>, etc.) which will be called, passing the
generated output as a parameter.
</p>
<p>
Examples:
</p>
<pre># output filename
$tt->process('welcome.tt2', $vars, 'welcome.html')
|| die $tt->error(), "\n";
# reference to output subroutine
sub myout {
my $output = shift;
...
}
$tt->process('welcome.tt2', $vars, \&myout)
|| die $tt->error(), "\n";
# reference to output text string
my $output = '';
$tt->process('welcome.tt2', $vars, \$output)
|| die $tt->error(), "\n";
print "output: $output\n";</pre>
<p>
In an Apache/mod_perl handler:
</p>
<pre>sub handler {
my $req = shift;
# ...your code here...
# direct output to Apache::Request via $req->print($output)
$tt->process($file, $vars, $req) || do {
$req->log_reason($tt->error());
return SERVER_ERROR;
};
return OK;
}</pre>
<p>
After the optional third output argument can come an optional reference
to a hash or a list of <code>(name, value)</code> pairs providing further
options for the output. The only option currently supported is
<code>binmode</code> which, when set to any true value will ensure that
files created (but not any existing file handles passed) will be set to
binary mode.
</p>
<pre># either: hash reference of options
$tt->process($infile, $vars, $outfile, { binmode => 1 })
|| die $tt->error(), "\n";
# or: list of name, value pairs
$tt->process($infile, $vars, $outfile, binmode => 1)
|| die $tt->error(), "\n";</pre>
<p>
Alternately, the <code>binmode</code> argument can specify a particular
IO layer such as <code>:utf8</code>.
</p>
<pre>$tt->process($infile, $vars, $outfile, binmode => ':utf8')
|| die $tt->error(), "\n";</pre>
<p>
The <code>OUTPUT</code> configuration item can be used to specify a
default output location other than <code>\*STDOUT</code>. The
<code>OUTPUT_PATH</code> specifies a directory which should be prefixed
to all output locations specified as filenames.
</p>
<pre>my $tt = Template->new({
OUTPUT => sub { ... }, # default
OUTPUT_PATH => '/tmp',
...
}) || die Template->error(), "\n";
# use default OUTPUT (sub is called)
$tt->process('welcome.tt2', $vars)
|| die $tt->error(), "\n";
# write file to '/tmp/welcome.html'
$tt->process('welcome.tt2', $vars, 'welcome.html')
|| die $tt->error(), "\n";</pre>
<p>
The <code>process()</code> method returns <code>1</code> on success or
<code>undef</code> on error. The error message generated in the latter
case can be retrieved by calling the <a href="#method_error">error()</a>
method. See also <a href="#CONFIGURATION_SUMMARY">CONFIGURATION
SUMMARY</a> which describes how error handling may be further customised.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="method_error" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">error()</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
When called as a class method, it returns the value of the
<code>$ERROR</code> package variable. Thus, the following are equivalent.
</p>
<pre>my $tt = Template->new()
|| die Template->error(), "\n";
my $tt = Template->new()
|| die $Template::ERROR, "\n";</pre>
<p>
When called as an object method, it returns the value of the internal
<code>_ERROR</code> variable, as set by an error condition in a previous
call to process().
</p>
<pre>$tt->process('welcome.tt2')
|| die $tt->error(), "\n";</pre>
<p>
Errors are represented in the Template Toolkit by objects of the <a
href="../modules/Template/Exception.html">Template::Exception</a>
class. If the <a href="#method_process">process()</a> method returns a
false value then the <code>error()</code> method can be called to return
an object of this class. The <a href="../modules/Template/Exception.html#method_type">type()</a> and <a
href="../modules/Template/Exception.html#method_info">info()</a>
methods can called on the object to retrieve the error type and
information string, respectively. The <a href="../modules/Template/Exception.html#method_as_string">as_string()</a>
method can be called to return a string of the form <code>$type -
$info</code>. This method is also overloaded onto the stringification
operator allowing the object reference itself to be printed to return the
formatted error string.
</p>
<pre>$tt->process('somefile') || do {
my $error = $tt->error();
print "error type: ", $error->type(), "\n";
print "error info: ", $error->info(), "\n";
print $error, "\n";
};</pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="method_service" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">service()</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The <code>Template</code> module delegates most of the effort of
processing templates to an underlying <a href="../modules/Template/Service.html">Template::Service</a> object. This
method returns a reference to that object.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="method_context" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">context()</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The <a href="../modules/Template/Service.html">Template::Service</a> module uses a core <a href="../modules/Template/Context.html">Template::Context</a> object for
runtime processing of templates. This method returns a reference to that
object and is equivalent to
<code>$template->service->context()</code>.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="method_template" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">template($name)</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
This method is a simple wrapper around the <a href="../modules/Template/Context.html">Template::Context</a> method of the
same name. It returns a compiled template for the source provided as an
argument.
</p>
</div>
</div>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="CONFIGURATION_SUMMARY" onclick="switch_section(this)" title="Click title to show/hide section content.">CONFIGURATION SUMMARY</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The following list gives a short summary of each Template Toolkit
configuration option. See <a href="../manual/Config.html">Template::Manual::Config</a>
for full details.
</p>
<div class="subsection">
<div class="head">
<h2 id="section_Template_Style_and_Parsing_Options" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Template Style and Parsing Options</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_START_TAG_END_TAG">START_TAG, END_TAG</h3>
<p>
Define tokens that indicate start and end of directives (default:
'<code>[%</code>' and '<code>%]</code>').
</p>
<h3 class="method" id="section_TAG_STYLE">TAG_STYLE</h3>
<p>
Set <code>START_TAG</code> and <code>END_TAG</code> according to a
pre-defined style (default: '<code>template</code>', as above).
</p>
<h3 class="method" id="section_PRE_CHOMP_POST_CHOMP">PRE_CHOMP, POST_CHOMP</h3>
<p>
Removes whitespace before/after directives (default: 0/0).
</p>
<h3 class="method" id="section_TRIM">TRIM</h3>
<p>
Remove leading and trailing whitespace from template output (default: 0).
</p>
<h3 class="method" id="section_INTERPOLATE">INTERPOLATE</h3>
<p>
Interpolate variables embedded like <code>$this</code> or
<code>${this}</code> (default: 0).
</p>
<h3 class="method" id="section_ANYCASE">ANYCASE</h3>
<p>
Allow directive keywords in lower case (default: 0 - UPPER only).
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Template_Files_and_Blocks" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Template Files and Blocks</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_INCLUDE_PATH">INCLUDE_PATH</h3>
<p>
One or more directories to search for templates.
</p>
<h3 class="method" id="section_DELIMITER">DELIMITER</h3>
<p>
Delimiter for separating paths in <code>INCLUDE_PATH</code> (default:
'<code>:</code>').
</p>
<h3 class="method" id="section_ABSOLUTE">ABSOLUTE</h3>
<p>
Allow absolute file names, e.g. <code>/foo/bar.html</code> (default: 0).
</p>
<h3 class="method" id="section_RELATIVE">RELATIVE</h3>
<p>
Allow relative filenames, e.g. <code>../foo/bar.html</code> (default: 0).
</p>
<h3 class="method" id="section_DEFAULT">DEFAULT</h3>
<p>
Default template to use when another not found.
</p>
<h3 class="method" id="section_BLOCKS">BLOCKS</h3>
<p>
Hash array pre-defining template blocks.
</p>
<h3 class="method" id="section_AUTO_RESET">AUTO_RESET</h3>
<p>
Enabled by default causing <code>BLOCK</code> definitions to be reset
each time a template is processed. Disable to allow <code>BLOCK</code>
definitions to persist.
</p>
<h3 class="method" id="section_RECURSION">RECURSION</h3>
<p>
Flag to permit recursion into templates (default: 0).
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Template_Variables" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Template Variables</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_VARIABLES">VARIABLES</h3>
<p>
Hash array of variables and values to pre-define in the stash.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Runtime_Processing_Options" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Runtime Processing Options</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_EVAL_PERL">EVAL_PERL</h3>
<p>
Flag to indicate if <code>PERL</code>/<code>RAWPERL</code> blocks should
be processed (default: 0).
</p>
<h3 class="method" id="section_PRE_PROCESS_POST_PROCESS">PRE_PROCESS, POST_PROCESS</h3>
<p>
Name of template(s) to process before/after main template.
</p>
<h3 class="method" id="section_PROCESS">PROCESS</h3>
<p>
Name of template(s) to process instead of main template.
</p>
<h3 class="method" id="section_ERROR">ERROR</h3>
<p>
Name of error template or reference to hash array mapping error types to
templates.
</p>
<h3 class="method" id="section_OUTPUT">OUTPUT</h3>
<p>
Default output location or handler.
</p>
<h3 class="method" id="section_OUTPUT_PATH">OUTPUT_PATH</h3>
<p>
Directory into which output files can be written.
</p>
<h3 class="method" id="section_DEBUG">DEBUG</h3>
<p>
Enable debugging messages.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Caching_and_Compiling_Options" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Caching and Compiling Options</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_CACHE_SIZE">CACHE_SIZE</h3>
<p>
Maximum number of compiled templates to cache in memory (default: undef -
cache all)
</p>
<h3 class="method" id="section_COMPILE_EXT">COMPILE_EXT</h3>
<p>
Filename extension for compiled template files (default: undef - don't
compile).
</p>
<h3 class="method" id="section_COMPILE_DIR">COMPILE_DIR</h3>
<p>
Root of directory in which compiled template files should be written
(default: undef - don't compile).
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Plugins_and_Filters" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Plugins and Filters</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_PLUGINS">PLUGINS</h3>
<p>
Reference to a hash array mapping plugin names to Perl packages.
</p>
<h3 class="method" id="section_PLUGIN_BASE">PLUGIN_BASE</h3>
<p>
One or more base classes under which plugins may be found.
</p>
<h3 class="method" id="section_LOAD_PERL">LOAD_PERL</h3>
<p>
Flag to indicate regular Perl modules should be loaded if a named plugin
can't be found (default: 0).
</p>
<h3 class="method" id="section_FILTERS">FILTERS</h3>
<p>
Hash array mapping filter names to filter subroutines or factories.
</p>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_Customisation_and_Extension" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">Customisation and Extension</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<h3 class="method" id="section_LOAD_TEMPLATES">LOAD_TEMPLATES</h3>
<p>
List of template providers.
</p>
<h3 class="method" id="section_LOAD_PLUGINS">LOAD_PLUGINS</h3>
<p>
List of plugin providers.
</p>
<h3 class="method" id="section_LOAD_FILTERS">LOAD_FILTERS</h3>
<p>
List of filter providers.
</p>
<h3 class="method" id="section_TOLERANT">TOLERANT</h3>
<p>
Set providers to tolerate errors as declinations (default: 0).
</p>
<h3 class="method" id="section_SERVICE">SERVICE</h3>
<p>
Reference to a custom service object (default: <a href="../modules/Template/Service.html">Template::Service</a>).
</p>
<h3 class="method" id="section_CONTEXT">CONTEXT</h3>
<p>
Reference to a custom context object (default: <a href="../modules/Template/Context.html">Template::Context</a>).
</p>
<h3 class="method" id="section_STASH">STASH</h3>
<p>
Reference to a custom stash object (default: <a href="../modules/Template/Stash.html">Template::Stash</a>).
</p>
<h3 class="method" id="section_PARSER">PARSER</h3>
<p>
Reference to a custom parser object (default: <a href="../modules/Template/Parser.html">Template::Parser</a>).
</p>
<h3 class="method" id="section_GRAMMAR">GRAMMAR</h3>
<p>
Reference to a custom grammar object (default: <a href="../modules/Template/Grammar.html">Template::Grammar</a>).
</p>
</div>
</div>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="DIRECTIVE_SUMMARY" onclick="switch_section(this)" title="Click title to show/hide section content.">DIRECTIVE SUMMARY</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The following list gives a short summary of each Template Toolkit
directive. See <a href="../manual/Directives.html">Template::Manual::Directives</a> for full details.
</p>
<div class="subsection">
<div class="head">
<h2 id="section_GET" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">GET</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Evaluate and print a variable or value.
</p>
<pre><span class="tt">[% GET variable %]</span> # 'GET' keyword is optional
<span class="tt">[% variable %]</span>
<span class="tt">[% hash.key %]</span>
<span class="tt">[% list.n %]</span>
<span class="tt">[% code(args) %]</span>
<span class="tt">[% obj.meth(args) %]</span>
<span class="tt">[% "value: $var" %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_CALL" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">CALL</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
As per <a href="#section_GET">GET</a> but without printing result (e.g.
call code)
</p>
<pre><span class="tt">[% CALL variable %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_SET" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">SET</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Assign a values to variables.
</p>
<pre><span class="tt">[% SET variable = value %]</span> # 'SET' also optional
<span class="tt">[% variable = other_variable
variable = 'literal text @ $100'
variable = "interpolated text: $var"
list = [ val, val, val, val, ... ]
list = [ val..val ]
hash = { var => val, var => val, ... }
%]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_DEFAULT" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">DEFAULT</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Like <a href="#section_SET">SET</a>, but variables are only set if
currently unset (i.e. have no true value).
</p>
<pre><span class="tt">[% DEFAULT variable = value %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_INSERT" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">INSERT</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Insert a file without any processing performed on the contents.
</p>
<pre><span class="tt">[% INSERT legalese.txt %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_PROCESS" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">PROCESS</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Process another template file or block and insert the generated output.
Any template <a href="#section_BLOCK">BLOCK</a>s or variables defined or
updated in the <code>PROCESS</code>ed template will thereafter be defined
in the calling template.
</p>
<pre><span class="tt">[% PROCESS template %]</span>
<span class="tt">[% PROCESS template var = val, ... %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_INCLUDE" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">INCLUDE</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Similar to <code>PROCESS</code>, but using a local copy of the current
variables. Any template <code>BLOCK</code>s or variables defined in the
<code>INCLUDE</code>d template remain local to it.
</p>
<pre><span class="tt">[% INCLUDE template %]</span>
<span class="tt">[% INCLUDE template var = val, ... %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_WRAPPER" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">WRAPPER</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The content between the <code>WRAPPER</code> and correspondng
<code>END</code> directives is first evaluated, with the output generated
being stored in the <code>content</code> variable. The named template is
then process as per <code>INCLUDE</code>.
</p>
<pre><span class="tt">[% WRAPPER layout %]</span>
Some template markup <span class="tt">[% blah %]</span>...
<span class="tt">[% END %]</span></pre>
<p>
A simple <i>layout</i> template might look something like this:
</p>
<pre>Your header here...
<span class="tt">[% content %]</span>
Your footer here...</pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_BLOCK" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">BLOCK</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Define a named template block for <a href="#section_INCLUDE">INCLUDE</a>,
<a href="#section_PROCESS">PROCESS</a> and <a
href="#section_WRAPPER">WRAPPER</a> to use.
</p>
<pre><span class="tt">[% BLOCK hello %]</span>
Hello World
<span class="tt">[% END %]</span>
<span class="tt">[% INCLUDE hello %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_FOREACH" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">FOREACH</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Repeat the enclosed <code>FOREACH</code> ... <code>END</code> block for
each value in the list.
</p>
<pre><span class="tt">[% FOREACH variable IN [ val, val, val ] %]</span> # either
<span class="tt">[% FOREACH variable IN list %]</span> # or
The variable is set to <span class="tt">[% variable %]</span>
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_WHILE" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">WHILE</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The block enclosed between <code>WHILE</code> and <code>END</code> block
is processed while the specified condition is true.
</p>
<pre><span class="tt">[% WHILE condition %]</span>
content
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_IF_UNLESS_ELSIF_ELSE" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">IF / UNLESS / ELSIF / ELSE</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The enclosed block is processed if the condition is true / false.
</p>
<pre><span class="tt">[% IF condition %]</span>
content
<span class="tt">[% ELSIF condition %]</span>
content
<span class="tt">[% ELSE %]</span>
content
<span class="tt">[% END %]</span>
<span class="tt">[% UNLESS condition %]</span>
content
<span class="tt">[% # ELSIF/ELSE as per IF, above %]</span>
content
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_SWITCH_CASE" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">SWITCH / CASE</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Multi-way switch/case statement.
</p>
<pre><span class="tt">[% SWITCH variable %]</span>
<span class="tt">[% CASE val1 %]</span>
content
<span class="tt">[% CASE [ val2, val3 ] %]</span>
content
<span class="tt">[% CASE %]</span> # or <span class="tt">[% CASE DEFAULT %]</span>
content
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_MACRO" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">MACRO</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Define a named macro.
</p>
<pre><span class="tt">[% MACRO name <directive> %]</span>
<span class="tt">[% MACRO name(arg1, arg2) <directive> %]</span>
...
<span class="tt">[% name %]</span>
<span class="tt">[% name(val1, val2) %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_FILTER" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">FILTER</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Process enclosed <code>FILTER</code> ... <code>END</code> block then pipe
through a filter.
</p>
<pre><span class="tt">[% FILTER name %]</span> # either
<span class="tt">[% FILTER name( params ) %]</span> # or
<span class="tt">[% FILTER alias = name( params ) %]</span> # or
content
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_USE" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">USE</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Load a plugin module (see <code>Template::<Manual::Plugins</code>), or
any regular Perl module when the <code>LOAD_PERL</code> option is set.
</p>
<pre><span class="tt">[% USE name %]</span> # either
<span class="tt">[% USE name( params ) %]</span> # or
<span class="tt">[% USE var = name( params ) %]</span> # or
...
<span class="tt">[% name.method %]</span>
<span class="tt">[% var.method %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_PERL_RAWPERL" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">PERL / RAWPERL</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Evaluate enclosed blocks as Perl code (requires the
<code>EVAL_PERL</code> option to be set).
</p>
<pre><span class="tt">[% PERL %]</span>
# perl code goes here
$stash->set('foo', 10);
print "set 'foo' to ", $stash->get('foo'), "\n";
print $context->include('footer', { var => $val });
<span class="tt">[% END %]</span>
<span class="tt">[% RAWPERL %]</span>
# raw perl code goes here, no magic but fast.
$output .= 'some output';
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_TRY_THROW_CATCH_FINAL" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">TRY / THROW / CATCH / FINAL</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Exception handling.
</p>
<pre><span class="tt">[% TRY %]</span>
content
<span class="tt">[% THROW type info %]</span>
<span class="tt">[% CATCH type %]</span>
catch content
<span class="tt">[% error.type %]</span> <span class="tt">[% error.info %]</span>
<span class="tt">[% CATCH %]</span> # or <span class="tt">[% CATCH DEFAULT %]</span>
content
<span class="tt">[% FINAL %]</span>
this block is always processed
<span class="tt">[% END %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_NEXT" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">NEXT</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Jump straight to the next item in a <code>FOREACH</code> or
<code>WHILE</code> loop.
</p>
<pre><span class="tt">[% NEXT %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_LAST" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">LAST</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Break out of <code>FOREACH</code> or <code>WHILE</code> loop.
</p>
<pre><span class="tt">[% LAST %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_RETURN" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">RETURN</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Stop processing current template and return to including templates.
</p>
<pre><span class="tt">[% RETURN %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_STOP" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">STOP</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Stop processing all templates and return to caller.
</p>
<pre><span class="tt">[% STOP %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_TAGS" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">TAGS</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Define new tag style or characters (default: <code>[%</code>
<code>%]</code>).
</p>
<pre><span class="tt">[% TAGS html %]</span>
<span class="tt">[% TAGS <!-- --> %]</span></pre>
</div>
</div> <div class="subsection">
<div class="head">
<h2 id="section_COMMENTS" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">COMMENTS</h2>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Ignored and deleted.
</p>
<pre><span class="tt">[% # this is a comment to the end of line
foo = 'bar'
%]</span>
<span class="tt">[%# placing the '#' immediately inside the directive
tag comments out the entire directive
%]</span></pre>
</div>
</div>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="SOURCE_CODE_REPOSITORY" onclick="switch_section(this)" title="Click title to show/hide section content.">SOURCE CODE REPOSITORY</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
The source code for the Template Toolkit is held in a public git
repository on Github: <a
href="https://github.com/abw/Template2">https://github.com/abw/Template2</a>
</p>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="AUTHOR" onclick="switch_section(this)" title="Click title to show/hide section content.">AUTHOR</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Andy Wardley <abw@wardley.org> <a
href="http://wardley.org/">http://wardley.org/</a>
</p>
</div>
</div>
<div class="section">
<div class="head">
<h1 id="VERSION" onclick="switch_section(this)" title="Click title to show/hide section content.">VERSION</h1>
<a href="#body" class="top" title="Back up to the top of the page" >Top</a>
</div>
<div class="body">
<p>
Template Toolkit version 2.24, released February 2012.
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Copyright (C) 1996-2012 Andy Wardley. All Rights Reserved.
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This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
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Copyright © 1996-2012 <a href="http://wardley.org/">Andy Wardley</a>. All Rights Reserved.
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The <a href="http://template-toolkit.org/">Template Toolkit</a> is <a href="http://opensource.org/">Open Source</a> software.
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