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Dominique Dumont > Config-Model-2.113 > Config::Model::Role::ComputeFunction

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Module Version: 2.113   Source   Latest Release: Config-Model-2.114

NAME ^

Config::Model::Role::ComputeFunction - compute &index or &element functions

VERSION ^

version 2.113

SYNOPSIS ^

 $value->eval_function('index');
 $value->eval_function('element');

 $value->eval_function('index','-');
 $value->eval_function('index','- -');
 $value->eval_function('index','-3');

 $value->compute_string('&element(-)')
 $value->compute_string('&index(- -)');

DESCRIPTION ^

Role used to let a value object get the index or the element name of $self or of a node above.

METHODS ^

eval_function

Retrieve the index or the element name. Parameters are

 ( function_name , [ up  ])
function_name

element or index

up

Optional parameter to indicate how many level to go up before retrieving the index or element name. Each - is equivalent to a call to parent|Config::Model::Node/parent. Can be repeated dashes ("-", "- -", ...) or a dash with a multiplier ("-", "-2", ...). White spaces are ignored.

compute_string

Perform a similar function as eval_function using a string where function names are extracted.

E.g. compute_string('&element(-)') calls eval_function('element','-')

AUTHOR ^

Dominique Dumont

COPYRIGHT AND LICENSE ^

This software is Copyright (c) 2005-2017 by Dominique Dumont.

This is free software, licensed under:

  The GNU Lesser General Public License, Version 2.1, February 1999
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