Weight.php

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<?php
#require_once 'Zend/Measure/Abstract.php';
#require_once 'Zend/Locale.php';

class Zend_Measure_Cooking_Weight extends Zend_Measure_Abstract
{
    const STANDARD = 'GRAM';

    const HALF_STICK    = 'HALF_STICK';
    const STICK         = 'STICK';
    const CUP           = 'CUP';
    const GRAM          = 'GRAM';
    const OUNCE         = 'OUNCE';
    const POUND         = 'POUND';
    const TEASPOON      = 'TEASPOON';
    const TEASPOON_US   = 'TEASPOON_US';
    const TABLESPOON    = 'TABLESPOON';
    const TABLESPOON_US = 'TABLESPOON_US';

    protected $_units = array(
        'HALF_STICK'    => array(array('' => '453.59237', '/' => '8'),                    'half stk'),
        'STICK'         => array(array('' => '453.59237', '/' => '4'),                    'stk'),
        'CUP'           => array(array('' => '453.59237', '/' => '2'),                    'c'),
        'GRAM'          => array('1',                                                   'g'),
        'OUNCE'         => array(array('' => '453.59237', '/' => '16'),                   'oz'),
        'POUND'         => array('453.59237',                                           'lb'),
        'TEASPOON'      => array(array('' => '1.2503332', '' => '453.59237', '/' => '128'), 'tsp'),
        'TEASPOON_US'   => array(array('' => '453.59237', '/' => '96'),                   'tsp'),
        'TABLESPOON'    => array(array('' => '1.2503332', '' => '453.59237', '/' => '32'),  'tbsp'),
        'TABLESPOON_US' => array(array('' => '453.59237', '/' => '32'),                   'tbsp'),
        'STANDARD'      => 'GRAM'
    );
}