# Template::Namespace::Constants - phpMan

## 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]