NAME
Template::Plugin::Perl - TT2 plugin to import Perl built-in functions
VERSION
This document describes Template::Plugin::Perl 0.06 released on 12
March, 2007.
SYNOPSIS
[% USE Perl %]
[% Perl.log(100) %]
[% Perl.rand(1) %]
[% Perl.exp(2) %]
[% Perl.sprintf("%.0f", 3.5) %]
[% Perl.pow(2, 3) %] # 2 ** 3;
[% Perl.eval('2**3') %]
[% Perl.sin(3.14) %]
[% Perl.cos(0) %]
[% Perl.join(',', 'a', 'b', 'c') %]
[% list = ['a','b','c'];
Perl.join(',' list) %]
DESCRIPTION
As a TT programmer, I found it quite inflexible to use the Template
Toolkit's presentation language Language due to the very limited
vocabulary. So I wrote this little plugin in order to open a window for
the template file to the full richness of most Perl built-in functions,
making the Template language a "programming language" in a much more
serious sense.
As I writing this stuff, The Template language does not support
exponential operator (**). So I add an extra function 'pow' to support
this missing feature. However, there is no doubt that we could treat
"Perl.eval" as a good workaround, just as the "SYNOPSIS" demonstrates.
According to the current implementation, don't use the functions for
real @ARRAYs, such as shift, pop. They won't function at all. However,
"sort", "join", and "reverse" are notable exceptions. Moreover,
Arguments of all Perl.* functions are passed by values, and returned in
scalar context, so some functions for list data, like map and grep, make
little sense in this context.
builtins that modify their arguments won't work either, such as "chomp",
"chop", and "pos".
Please keep in mind I just used AUTOLOAD, eval, and Data::Dumper to do
the magic here.
If you're looking for even more functions, I suggest you take a look at
the Template::Plugin::POSIX module which exports the excellent POSIX
repertoire.
METHODS
new Constructor called by the TT2 template system
throw
TT2 exception handling procedure.
pow Non-Perl builtin added for ease of use
TODO
* Add more unit tests
SOURCE CONTROL
You can always get the latest version of the source code from the follow
Subversion repository:
<
http://svn.openfoundry.org/ttperl>
There is anonymous access to all.
If you'd like a commit bit, please let me know :)
AUTHOR
Agent Zhang, <
[email protected]>
COPYRIGHT AND LICENSE
Copyright (c) 2005, 2006, 2007 by Agent Zhang. All rights reserved.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
SEE ALSO
Template, Template::Plugin::POSIX, Data::Dumper
