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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category  Zend
  * @package   Zend_Measure
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd     New BSD License
  * @version   $Id$
  */
 
 /**
  * @see Zend_Locale
  */
 // require_once 'Zend/Locale.php';
 
 /**
  * @see Zend_Locale_Math
  */
 // require_once 'Zend/Locale/Math.php';
 
 /**
  * @see Zend_Locale_Format
  */
 // require_once 'Zend/Locale/Format.php';
 
 /**
  * Abstract class for all measurements
  *
  * @category   Zend
  * @package    Zend_Measure
  * @subpackage Zend_Measure_Abstract
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Measure_Abstract
 {
     /**
      * Plain value in standard unit
      *
      * @var string $_value
      */
     protected $_value;
 
     /**
      * Original type for this unit
      *
      * @var string $_type
      */
     protected $_type;
 
     /**
      * Locale identifier
      *
      * @var string $_locale
      */
     protected $_locale = null;
 
     /**
      * Unit types for this measurement
      */
     protected $_units = array();
 
     /**
      * Zend_Measure_Abstract is an abstract class for the different measurement types
      *
      * @param  mixed       $value  Value as string, integer, real or float
      * @param  int         $type   OPTIONAL a measure type f.e. Zend_Measure_Length::METER
      * @param  Zend_Locale $locale OPTIONAL a Zend_Locale Type
      * @throws Zend_Measure_Exception
      */
     public function __construct($value, $type = null, $locale = null)
     {
         if (($type !== null) and (Zend_Locale::isLocale($type, null, false))) {
             $locale = $type;
             $type = null;
         }
 
         $this->setLocale($locale);
         if ($type === null) {
             $type = $this->_units['STANDARD'];
         }
 
         if (isset($this->_units[$type]) === false) {
             // require_once 'Zend/Measure/Exception.php';
             throw new Zend_Measure_Exception("Type ($type) is unknown");
         }
 
         $this->setValue($value, $type, $this->_locale);
     }
 
     /**
      * Returns the actual set locale
      *
      * @return string
      */
     public function getLocale()
     {
         return $this->_locale;
     }
 
     /**
      * Sets a new locale for the value representation
      *
      * @param string|Zend_Locale $locale (Optional) New locale to set
      * @param boolean            $check  False, check but don't set; True, set the new locale
      * @return Zend_Measure_Abstract
      */
     public function setLocale($locale = null, $check = false)
     {
         if (empty($locale)) {
             // require_once 'Zend/Registry.php';
             if (Zend_Registry::isRegistered('Zend_Locale') === true) {
                 $locale = Zend_Registry::get('Zend_Locale');
             }
         }
 
         if ($locale === null) {
             $locale = new Zend_Locale();
         }
 
         if (!Zend_Locale::isLocale($locale, true, false)) {
             if (!Zend_Locale::isLocale($locale, false, false)) {
                 // require_once 'Zend/Measure/Exception.php';
                 throw new Zend_Measure_Exception("Language (" . (string) $locale . ") is unknown");
             }
 
             $locale = new Zend_Locale($locale);
         }
 
         if (!$check) {
             $this->_locale = (string) $locale;
         }
         return $this;
     }
 
     /**
      * Returns the internal value
      *
      * @param integer            $round  (Optional) Rounds the value to an given precision,
      *                                              Default is -1 which returns without rounding
      * @param string|Zend_Locale $locale (Optional) Locale for number representation
      * @return integer|string
      */
     public function getValue($round = -1, $locale = null)
     {
         if ($round < 0) {
             $return = $this->_value;
         } else {
             $return = Zend_Locale_Math::round($this->_value, $round);
         }
 
         if ($locale !== null) {
             $this->setLocale($locale, true);
             return Zend_Locale_Format::toNumber($return, array('locale' => $locale));
         }
 
         return $return;
     }
 
     /**
      * Set a new value
      *
      * @param  integer|string      $value   Value as string, integer, real or float
      * @param  string              $type    OPTIONAL A measure type f.e. Zend_Measure_Length::METER
      * @param  string|Zend_Locale  $locale  OPTIONAL Locale for parsing numbers
      * @throws Zend_Measure_Exception
      * @return Zend_Measure_Abstract
      */
     public function setValue($value, $type = null, $locale = null)
     {
         if (($type !== null) and (Zend_Locale::isLocale($type, null, false))) {
             $locale = $type;
             $type = null;
         }
 
         if ($locale === null) {
             $locale = $this->_locale;
         }
 
         $this->setLocale($locale, true);
         if ($type === null) {
             $type = $this->_units['STANDARD'];
         }
 
         if (empty($this->_units[$type])) {
             // require_once 'Zend/Measure/Exception.php';
             throw new Zend_Measure_Exception("Type ($type) is unknown");
         }
 
         try {
             $value = Zend_Locale_Format::getNumber($value, array('locale' => $locale));
         } catch(Exception $e) {
             // require_once 'Zend/Measure/Exception.php';
             throw new Zend_Measure_Exception($e->getMessage(), $e->getCode(), $e);
         }
 
         $this->_value = $value;
         $this->setType($type);
         return $this;
     }
 
     /**
      * Returns the original type
      *
      * @return type
      */
     public function getType()
     {
         return $this->_type;
     }
 
     /**
      * Set a new type, and convert the value
      *
      * @param  string $type New type to set
      * @throws Zend_Measure_Exception
      * @return Zend_Measure_Abstract
      */
     public function setType($type)
     {
         if (empty($this->_units[$type])) {
             // require_once 'Zend/Measure/Exception.php';
             throw new Zend_Measure_Exception("Type ($type) is unknown");
         }
 
         if (empty($this->_type)) {
             $this->_type = $type;
         } else {
             // Convert to standard value
             $value = $this->_value;
             if (is_array($this->_units[$this->getType()][0])) {
                 foreach ($this->_units[$this->getType()][0] as $key => $found) {
                     switch ($key) {
                         case "/":
                             if ($found != 0) {
                                 $value = call_user_func(Zend_Locale_Math::$div, $value, $found, 25);
                             }
                             break;
                         case "+":
                             $value = call_user_func(Zend_Locale_Math::$add, $value, $found, 25);
                             break;
                         case "-":
                             $value = call_user_func(Zend_Locale_Math::$sub, $value, $found, 25);
                             break;
                         default:
                             $value = call_user_func(Zend_Locale_Math::$mul, $value, $found, 25);
                             break;
                     }
                 }
             } else {
                 $value = call_user_func(Zend_Locale_Math::$mul, $value, $this->_units[$this->getType()][0], 25);
             }
 
             // Convert to expected value
             if (is_array($this->_units[$type][0])) {
                 foreach (array_reverse($this->_units[$type][0]) as $key => $found) {
                     switch ($key) {
                         case "/":
                             $value = call_user_func(Zend_Locale_Math::$mul, $value, $found, 25);
                             break;
                         case "+":
                             $value = call_user_func(Zend_Locale_Math::$sub, $value, $found, 25);
                             break;
                         case "-":
                             $value = call_user_func(Zend_Locale_Math::$add, $value, $found, 25);
                             break;
                         default:
                             if ($found != 0) {
                                 $value = call_user_func(Zend_Locale_Math::$div, $value, $found, 25);
                             }
                             break;
                     }
                 }
             } else {
                 $value = call_user_func(Zend_Locale_Math::$div, $value, $this->_units[$type][0], 25);
             }
 
             $slength = strlen($value);
             $length  = 0;
             for($i = 1; $i <= $slength; ++$i) {
                 if ($value[$slength - $i] != '0') {
                     $length = 26 - $i;
                     break;
                 }
             }
 
             $this->_value = Zend_Locale_Math::round($value, $length);
             $this->_type  = $type;
         }
         return $this;
     }
 
     /**
      * Compare if the value and type is equal
      *
      * @param  Zend_Measure_Abstract $object object to compare
      * @return boolean
      */
     public function equals($object)
     {
         if ((string) $object == $this->toString()) {
             return true;
         }
 
         return false;
     }
 
     /**
      * Returns a string representation
      *
      * @param  integer            $round  (Optional) Runds the value to an given exception
      * @param  string|Zend_Locale $locale (Optional) Locale to set for the number
      * @return string
      */
     public function toString($round = -1, $locale = null)
     {
         if ($locale === null) {
             $locale = $this->_locale;
         }
 
         return $this->getValue($round, $locale) . ' ' . $this->_units[$this->getType()][1];
     }
 
     /**
      * Returns a string representation
      *
      * @return string
      */
     public function __toString()
     {
         return $this->toString();
     }
 
     /**
      * Returns the conversion list
      *
      * @return array
      */
     public function getConversionList()
     {
         return $this->_units;
     }
 
     /**
      * Alias function for setType returning the converted unit
      *
      * @param  string             $type   Constant Type
      * @param  integer            $round  (Optional) Rounds the value to a given precision
      * @param  string|Zend_Locale $locale (Optional) Locale to set for the number
      * @return string
      */
     public function convertTo($type, $round = 2, $locale = null)
     {
         $this->setType($type);
         return $this->toString($round, $locale);
     }
 
     /**
      * Adds an unit to another one
      *
      * @param  Zend_Measure_Abstract $object object of same unit type
      * @return Zend_Measure_Abstract
      */
     public function add($object)
     {
         $object->setType($this->getType());
         $value  = $this->getValue(-1) + $object->getValue(-1);
 
         $this->setValue($value, $this->getType(), $this->_locale);
         return $this;
     }
 
     /**
      * Substracts an unit from another one
      *
      * @param  Zend_Measure_Abstract $object object of same unit type
      * @return Zend_Measure_Abstract
      */
     public function sub($object)
     {
         $object->setType($this->getType());
         $value  = $this->getValue(-1) - $object->getValue(-1);
 
         $this->setValue($value, $this->getType(), $this->_locale);
         return $this;
     }
 
     /**
      * Compares two units
      *
      * @param  Zend_Measure_Abstract $object object of same unit type
      * @return boolean
      */
     public function compare($object)
     {
         $object->setType($this->getType());
         $value  = $this->getValue(-1) - $object->getValue(-1);
 
         if ($value < 0) {
             return -1;
         } else if ($value > 0) {
             return 1;
         }
 
         return 0;
     }
 }