Andy Wardley > Template-Toolkit > Template::Namespace::Constants

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Module Version: 1.27   Source  

NAME ^

Template::Namespace::Constants - Compile time constant folding

SYNOPSIS ^

    # easy way to define constants
    use Template;
    
    my $tt = Template->new({
        CONSTANTS => {
            pi => 3.14,
            e  => 2.718,
        },
    });

    # nitty-gritty, hands-dirty way
    use Template::Namespace::Constants;
    
    my $tt = Template->new({
        NAMESPACE => {
            constants => Template::Namespace::Constants->new({
                pi => 3.14,
                e  => 2.718,
            },
        },
    });

DESCRIPTION ^

The Template::Namespace::Constants module implements a namespace handler which is plugged into the Template::Directive compiler module. This then performs compile time constant folding of variables in a particular namespace.

METHODS ^

new(\%constants)

The new() constructor method creates and returns a reference to a new Template::Namespace::Constants object. This creates an internal stash to store the constant variable definitions passed as arguments.

    my $handler = Template::Namespace::Constants->new({
        pi => 3.14,
        e  => 2.718,
    });

ident(\@ident)

Method called to resolve a variable identifier into a compiled form. In this case, the method fetches the corresponding constant value from its internal stash and returns it.

AUTHOR ^

Andy Wardley <abw@wardley.org> http://wardley.org/

COPYRIGHT ^

Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO ^

Template::Directive

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