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.IX Title "Dancer2::Template::Implementation::ForkedTiny 3pm"
.TH Dancer2::Template::Implementation::ForkedTiny 3pm "2023-12-15" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Dancer2::Template::Implementation::ForkedTiny \- Dancer2 own implementation of Template::Tiny
.SH "VERSION"
.IX Header "VERSION"
version 1.1.0
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&  my $template = Dancer2::Template::Implementation::ForkedTiny\->new(
\&      TRIM => 1,
\&  );
\&
\&  # Print the template results to STDOUT
\&  $template\->process( <<\*(AqEND_TEMPLATE\*(Aq, { foo => \*(AqWorld\*(Aq } );
\&  Hello [% foo %]!
\&  END_TEMPLATE
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBDancer2::Template::Implementation::ForkedTiny\fR is a reimplementation of a subset of the functionality from
Template Toolkit in as few lines of code as possible.
.PP
It is intended for use in light-usage, low-memory, or low-cpu templating
situations, where you may need to upgrade to the full feature set in the
future, or if you want the retain the familiarity of TT-style templates.
.PP
For the subset of functionality it implements, it has fully-compatible template
and stash \s-1API.\s0 All templates used with \fBDancer2::Template::Implementation::ForkedTiny\fR should be able to be
transparently upgraded to full Template Toolkit.
.PP
Unlike Template Toolkit, \fBDancer2::Template::Implementation::ForkedTiny\fR will process templates without a
compile phase (but despite this is still quicker, owing to heavy use of
the Perl regular expression engine.
.SS "\s-1SUPPORTED USAGE\s0"
.IX Subsection "SUPPORTED USAGE"
By default, the \f(CW\*(C`[% %]\*(C'\fR tag style is used. You can change the start tag and
end tag by specifying them at object creation :
.PP
.Vb 4
\&  my $template = Dancer2::Template::Implementation::ForkedTiny\->new(
\&      start_tag => \*(Aq<%\*(Aq,
\&      end_tag => \*(Aq%>,
\&  );
.Ve
.PP
In the rest of the documentation, \f(CW\*(C`[% %]\*(C'\fR will be used, but it can be of
course your specified start / end tags.
.PP
Both the \f(CW\*(C`[%+ +%]\*(C'\fR style explicit whitespace and the \f(CW\*(C`[%\- \-%]\*(C'\fR style
explicit chomp \fBare\fR support, although the \f(CW\*(C`[%+ +%]\*(C'\fR version is unneeded
in practice as \fBDancer2::Template::Implementation::ForkedTiny\fR does not support default-enabled \f(CW\*(C`PRE_CHOMP\*(C'\fR
or \f(CW\*(C`POST_CHOMP\*(C'\fR.
.PP
Variable expressions in the form \f(CW\*(C`[% foo.bar.baz %]\*(C'\fR \fBare\fR supported.
.PP
Appropriate simple behaviours for \f(CW\*(C`ARRAY\*(C'\fR references, \f(CW\*(C`HASH\*(C'\fR references and
objects are supported. \*(L"VMethods\*(R" such as [% array.length %] are \fBnot\fR
supported at this time.
.PP
If the resulting expression is a CodeRef, it'll be evaluated.
.PP
\&\f(CW\*(C`IF\*(C'\fR, \f(CW\*(C`ELSE\*(C'\fR and \f(CW\*(C`UNLESS\*(C'\fR conditional blocks \fBare\fR supported, but only with
simple \f(CW\*(C`[% foo.bar.baz %]\*(C'\fR conditions.
.PP
Support for looping (or rather iteration) is available in simple
\&\f(CW\*(C`[% FOREACH item IN list %]\*(C'\fR form \fBis\fR supported. Other loop structures are
\&\fBnot\fR supported. Because support for arbitrary or infinite looping is not
available, \fBDancer2::Template::Implementation::ForkedTiny\fR templates are not turing complete. This is
intentional.
.PP
All of the four supported control structures \f(CW\*(C`IF\*(C'\fR/\f(CW\*(C`ELSE\*(C'\fR/\f(CW\*(C`UNLESS\*(C'\fR/\f(CW\*(C`FOREACH\*(C'\fR
can be nested to arbitrary depth.
.PP
The treatment of \f(CW\*(C`_private\*(C'\fR hash and method keys is compatible with
Template Toolkit, returning null or false rather than the actual content
of the hash key or method.
.PP
Anything beyond the above is currently out of scope.
.SH "NAME"
Dancer2::Template::Implementation::ForkedTiny \- Template Toolkit reimplemented in as little code as possible, forked from Template::Tiny
.SH "METHODS"
.IX Header "METHODS"
.SS "new"
.IX Subsection "new"
.Vb 3
\&  my $template = Dancer2::Template::Implementation::ForkedTiny\->new(
\&      TRIM => 1,
\&  );
.Ve
.PP
The \f(CW\*(C`new\*(C'\fR constructor is provided for compatibility with Template Toolkit.
.PP
The only parameter it currently supports is \f(CW\*(C`TRIM\*(C'\fR (which removes leading
and trailing whitespace from processed templates).
.PP
Additional parameters can be provided without error, but will be ignored.
.SS "process"
.IX Subsection "process"
.Vb 2
\&  # DEPRECATED: Return template results (emits a warning)
\&  my $text = $template\->process( \e$input, $vars );
\&
\&  # Print template results to STDOUT
\&  $template\->process( \e$input, $vars );
\&
\&  # Generate template results into a variable
\&  my $output = \*(Aq\*(Aq;
\&  $template\->process( \e$input, $vars, \e$output );
.Ve
.PP
The \f(CW\*(C`process\*(C'\fR method is called to process a template.
.PP
The first parameter is a reference to a text string containing the template
text. A reference to a hash may be passed as the second parameter containing
definitions of template variables.
.PP
If a third parameter is provided, it must be a scalar reference to be
populated with the output of the template.
.PP
For a limited amount of time, the old deprecated interface will continue to
be supported. If \f(CW\*(C`process\*(C'\fR is called without a third parameter, and in
scalar or list contest, the template results will be returned to the caller.
.PP
If \f(CW\*(C`process\*(C'\fR is called without a third parameter, and in void context, the
template results will be \f(CW\*(C`print()\*(C'\fRed to the currently selected file handle
(probably \f(CW\*(C`STDOUT\*(C'\fR) for compatibility with Template.
.SH "SUPPORT"
.IX Header "SUPPORT"
Bugs should be reported via the \s-1CPAN\s0 bug tracker at
.PP
<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Template\-Tiny>
.PP
For other issues, or commercial enhancement or support, contact the author.
.SH "AUTHOR"
.IX Header "AUTHOR"
Adam Kennedy <adamk@cpan.org>
.PP
Forked and improved by Damien Krotkine <dams@cpan.org>
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Config::Tiny, CSS::Tiny, YAML::Tiny
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2009 \- 2011 Adam Kennedy.
Copyright 2012 Damien Krotkine.
.PP
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
.PP
The full text of the license can be found in the
\&\s-1LICENSE\s0 file included with this module.
.SH "AUTHOR"
.IX Header "AUTHOR"
Dancer Core Developers
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2023 by Alexis Sukrieh.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.