<?php
/**
 * Numbers_Words
 *
 * PHP version 4
 *
 * Copyright (c) 1997-2006 The PHP Group
 *
 * This source file is subject to version 3.0 of the PHP license,
 * that is bundled with this package in the file LICENSE, and is
 * available at through the world-wide-web at
 * http://www.php.net/license/3_0.txt.
 * If you did not receive a copy of the PHP license and are unable to
 * obtain it through the world-wide-web, please send a note to
 * license@php.net so we can mail you a copy immediately.
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Jesper Veggerby <pear.nosey@veggerby.dk>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @version  SVN: $Id: lang.dk.php 302816 2010-08-26 16:02:29Z ifeghali $
 * @link     http://pear.php.net/package/Numbers_Words
 */

/**
 * Class for translating numbers into Danish.
 *
 * @author Jesper Veggerby <pear.nosey@veggerby.dk>
 * @package Numbers_Words
 */

/**
 * Include needed files
 */
require_once "Numbers/Words.php";

/**
 * Class for translating numbers into Danish.
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Jesper Veggerby <pear.nosey@veggerby.dk>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @link     http://pear.php.net/package/Numbers_Words
 */
class Numbers_Words_dk extends Numbers_Words
{

	// {{{ properties

	/**
	 * Locale name
	 * @var string
	 * @access public
	 */
	var $locale = 'dk';

	/**
	 * Language name in English
	 * @var string
	 * @access public
	 */
	var $lang = 'Danish';

	/**
	 * Native language name
	 * @var string
	 * @access public
	 */
	var $lang_native = 'Dansk';

	/**
	 * The word for the minus sign
	 * @var string
	 * @access private
	 */
	var $_minus = 'minus'; // minus sign

	/**
	 * The sufixes for exponents (singular and plural).
	 * From: http://da.wikipedia.org/wiki/Navne_p%E5_store_tal
	 * @var array
	 * @access private
	 */
	var $_exponent = array(
		0 => array(''),
		3 => array('tusind','tusinde'),
		6 => array('million','millioner'),
		9 => array('milliard','milliarder'),
	   12 => array('billion','billioner'),
	   15 => array('billiard','billiarder'),
	   18 => array('trillion','trillioner'),
	   21 => array('trilliard','trilliarder'),
	   24 => array('quadrillion','quadrillioner'),
	   30 => array('quintillion','quintillioner'),
	   36 => array('sextillion','sextillioner'),
	   42 => array('septillion','septillioner'),
	   48 => array('octillion','octillioner'),
	   54 => array('nonillion','nonillioner'),
	   60 => array('decillion','decillioner'),
	  120 => array('vigintillion','vigintillioner'),
	  600 => array('centillion','centillioner')
		);

	/**
	 * The array containing the digits (indexed by the digits themselves).
	 * @var array
	 * @access private
	 */
	var $_digits = array(
		0 => 'nul', 'en', 'to', 'tre', 'fire',
		'fem', 'seks', 'syv', 'otte', 'ni'
	);

	/**
	 * The word separator
	 * @var string
	 * @access private
	 */
	var $_sep = ' ';

	/**
	 * The currency names (based on the below links,
	 * informations from central bank websites and on encyclopedias)
	 *
	 * @var array
	 * @link http://da.wikipedia.org/wiki/Valuta
	 * @access private
	 */
	var $_currency_names = array(
	  'AUD' => array(array('australsk dollar', 'australske dollars'), array('cent')),
	  'CAD' => array(array('canadisk dollar', 'canadisk dollars'), array('cent')),
	  'CHF' => array(array('schweitzer franc'), array('rappen')),
	  'CYP' => array(array('cypriotisk pund', 'cypriotiske pund'), array('cent')),
	  'CZK' => array(array('tjekkisk koruna'), array('halerz')),
	  'DKK' => array(array('krone', 'kroner'), array('øre')),
	  'EUR' => array(array('euro'), array('euro-cent')),
	  'GBP' => array(array('pund'), array('pence')),
	  'HKD' => array(array('Hong Kong dollar', 'Hong Kong dollars'), array('cent')),
	  'JPY' => array(array('yen'), array('sen')),
	  'NOK' => array(array('norsk krone', 'norske kroner'), array('øre')),
	  'PLN' => array(array('zloty', 'zlotys'), array('grosz')),
	  'SEK' => array(array('svensk krone', 'svenske kroner'), array('øre')),
	  'USD' => array(array('dollar', 'dollars'), array('cent'))
	);

	/**
	 * The default currency name
	 * @var string
	 * @access public
	 */
	var $def_currency = 'DKK'; // Danish krone

	// }}}
	// {{{ _toWords()

	/**
	 * Converts a number to its word representation
	 * in Danish language
	 *
	 * @param integer $num       An integer between -infinity and infinity inclusive :)
	 *                           that need to be converted to words
	 * @param integer $power     The power of ten for the rest of the number to the right.
	 *                           Optional, defaults to 0.
	 * @param integer $powsuffix The power name to be added to the end of the return string.
	 *                           Used internally. Optional, defaults to ''.
	 *
	 * @return string  The corresponding word representation
	 *
	 * @access protected
	 * @author Jesper Veggerby <pear.nosey@veggerby.dk>
	 * @since  Numbers_Words 0.16.3
	 */
	function _toWords($num, $power = 0, $powsuffix = '')
	{
		$ret = '';

		// add a minus sign
		if (substr($num, 0, 1) == '-') {
			$ret = $this->_sep . $this->_minus;
			$num = substr($num, 1);
		}

		// strip excessive zero signs and spaces
		$num = trim($num);
		$num = preg_replace('/^0+/', '', $num);

		if (strlen($num) > 3) {
			$maxp = strlen($num)-1;
			$curp = $maxp;
			for ($p = $maxp; $p > 0; --$p) { // power
				// check for highest power
				if (isset($this->_exponent[$p])) {
					// send substr from $curp to $p
					$snum = substr($num, $maxp - $curp, $curp - $p + 1);
					$snum = preg_replace('/^0+/', '', $snum);
					if ($snum !== '') {
						$cursuffix = $this->_exponent[$power][count($this->_exponent[$power])-1];
						if ($powsuffix != '') {
							$cursuffix .= $this->_sep . $powsuffix;
						}

						$ret .= $this->_toWords($snum, $p, $cursuffix);
					}
					$curp = $p - 1;
					continue;
				}
			}
			$num = substr($num, $maxp - $curp, $curp - $p + 1);
			if ($num == 0) {
				return $ret;
			}
		} elseif ($num == 0 || $num == '') {
			return $this->_sep . $this->_digits[0];
		}

		$h = $t = $d = 0;

		switch (strlen($num)) {
			case 3:
				$h = (int) substr($num, -3, 1);

			case 2:
				$t = (int) substr($num, -2, 1);

			case 1:
				$d = (int) substr($num, -1, 1);
			break;

			case 0:
			return;
			break;
		}

		if ($h) {
			if ($h == 1) {
				$ret .= $this->_sep . 'et' . $this->_sep . 'hundrede';
			} else {
				$ret .= $this->_sep . $this->_digits[$h] . $this->_sep . 'hundrede';
			}

			//if (($t + $d) > 0)
			//  $ret .= $this->_sep . 'og';
		} elseif ((isset($maxp)) && ($maxp > 3)) {
			// add 'og' in the case where there are preceding thousands but not hundreds or tens,
			// so fx. 80001 becomes 'firs tusinde og en' instead of 'firs tusinde en'
			$ret .= $this->_sep . 'og';
		}


		if ($t != 1 && $d > 0) {
			$ret .= $this->_sep . (($d == 1 & $power == 3 && $t == 0 && $h == 0) ? "et" : $this->_digits[$d]) . ($t > 1 ? $this->_sep . "og" : "");
		}

		// ten, twenty etc.
		switch ($t) {
			case 9:
				$ret .= $this->_sep . 'halvfems';
			break;

			case 8:
				$ret .= $this->_sep . 'firs';
			break;

			case 7:
				$ret .= $this->_sep . 'halvfjerds';
			break;

			case 6:
				$ret .= $this->_sep . 'tres';
			break;

			case 5:
				$ret .= $this->_sep . 'halvtreds';
			break;

			case 4:
				$ret .= $this->_sep . 'fyrre';
			break;

			case 3:
				$ret .= $this->_sep . 'tredive';
			break;

			case 2:
				$ret .= $this->_sep . 'tyve';
			break;

			case 1:
				switch ($d) {
					case 0:
						$ret .= $this->_sep . 'ti';
					break;

					case 1:
						$ret .= $this->_sep . 'elleve';
					break;

					case 2:
						$ret .= $this->_sep . 'tolv';
					break;

					case 3:
						$ret .= $this->_sep . 'tretten';
					break;

					case 4:
						$ret .= $this->_sep . 'fjorten';
					break;

					case 5:
						$ret .= $this->_sep . 'femten';
					break;

					case 6:
						$ret .= $this->_sep . 'seksten';
					break;

					case 7:
						$ret .= $this->_sep . 'sytten';
					break;

					case 8:
						$ret .= $this->_sep . 'atten';
					break;

					case 9:
						$ret .= $this->_sep . 'nitten';
					break;
				}
			break;
		}

		if ($power > 0) {
			if (isset($this->_exponent[$power])) {
				$lev = $this->_exponent[$power];
			}

			if (!isset($lev) || !is_array($lev)) {
				return null;
			}

			if ($d == 1 && ($t+$h) == 0) {
				$ret .= $this->_sep . $lev[0];
			} else {
				$ret .= $this->_sep . $lev[1];
			}
		}

		if ($powsuffix != '') {
			$ret .= $this->_sep . $powsuffix;
		}

		return $ret;
	}
	// }}}
	// {{{ toCurrencyWords()

	/**
	 * Converts a currency value to its word representation
	 * (with monetary units) in danish language
	 *
	 * @param integer $int_curr         An international currency symbol
	 *                                  as defined by the ISO 4217 standard (three characters)
	 * @param integer $decimal          A money total amount without fraction part (e.g. amount of dollars)
	 * @param integer $fraction         Fractional part of the money amount (e.g. amount of cents)
	 *                                  Optional. Defaults to false.
	 * @param integer $convert_fraction Convert fraction to words (left as numeric if set to false).
	 *                                  Optional. Defaults to true.
	 *
	 * @return string  The corresponding word representation for the currency
	 *
	 * @access public
	 * @author Jesper Veggerby <pear.nosey@veggerby.dk>
	 * @since  Numbers_Words 0.4
	 */
	function toCurrencyWords($int_curr, $decimal, $fraction = false, $convert_fraction = true)
	{
		$int_curr = strtoupper($int_curr);
		if (!isset($this->_currency_names[$int_curr])) {
			$int_curr = $this->def_currency;
		}
		$curr_names = $this->_currency_names[$int_curr];

		if (($decimal != "") and ($decimal != 0)) {
			$ret = trim($this->_toWords($decimal));
			$lev = ($decimal == 1) ? 0 : 1;
			if ($lev > 0) {
				if (count($curr_names[0]) > 1) {
					$ret .= $this->_sep . $curr_names[0][$lev];
				} else {
					$ret .= $this->_sep . $curr_names[0][0];
				}
			} else {
				$ret .= $this->_sep . $curr_names[0][0];
			}

			if (($fraction !== false)  and ($fraction != 0)) {
				$ret .= $this->_sep . "og";
			}
		}

		if (($fraction !== false) and ($fraction != 0)) {
			if ($convert_fraction) {
				$ret .= $this->_sep . trim($this->_toWords($fraction));
			} else {
				$ret .= $this->_sep . $fraction;
			}
			$lev = ($fraction == 1) ? 0 : 1;
			if ($lev > 0) {
				if (count($curr_names[1]) > 1) {
					$ret .= $this->_sep . $curr_names[1][$lev];
				} else {
					$ret .= $this->_sep . $curr_names[1][0];
				}
			} else {
				$ret .= $this->_sep . $curr_names[1][0];
			}
		}
		return $ret;
	}
	// }}}
}