<?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   Xavier Noguer
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @version  SVN: $Id: lang.es.php 302816 2010-08-26 16:02:29Z ifeghali $
 * @link     http://pear.php.net/package/Numbers_Words
 */

/**
 * Class for translating numbers into Spanish (Castellano).
 *
 * @author Xavier Noguer
 * @package Numbers_Words
 */

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

/**
 * Class for translating numbers into Spanish (Castellano).
 * It supports up to decallones (10^6).
 * It doesn't support spanish tonic accents (acentos).
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Xavier Noguer
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @link     http://pear.php.net/package/Numbers_Words
 */
class Numbers_Words_es extends Numbers_Words
{
	// {{{ properties

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

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

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

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

	/**
	 * The sufixes for exponents (singular and plural)
	 * @var array
	 * @access private
	 */
	var $_exponent = array(
		0 => array('',''),
		3 => array('mil','mil'),
		6 => array('millón','millones'),
	   12 => array('billón','billones'),
	   18 => array('trilón','trillones'),
	   24 => array('cuatrillón','cuatrillones'),
	   30 => array('quintillón','quintillones'),
	   36 => array('sextillón','sextillones'),
	   42 => array('septillón','septillones'),
	   48 => array('octallón','octallones'),
	   54 => array('nonallón','nonallones'),
	   60 => array('decallón','decallones'),
		);
	/**
	 * The array containing the digits (indexed by the digits themselves).
	 * @var array
	 * @access private
	 */
	var $_digits = array(
		0 => 'cero', 'uno', 'dos', 'tres', 'cuatro',
		'cinco', 'seis', 'siete', 'ocho', 'nueve'
		);
	/**
	 * The word separator
	 * @var string
	 * @access private
	 */
	var $_sep = ' ';
	// }}}
	// {{{ _toWords()
	/**
	 * Converts a number to its word representation
	 * in Spanish (Castellano).
	 *
	 * @param integer $num   An integer between -infinity and infinity inclusive :)
	 *                       that should be converted to a words representation
	 * @param integer $power The power of ten for the rest of the number to the right.
	 *                       For example toWords(12,3) should give "doce mil".
	 *                       Optional, defaults to 0.
	 *
	 * @return string  The corresponding word representation
	 *
	 * @access protected
	 * @author Xavier Noguer
	 * @since  Numbers_Words 0.16.3
	 */
	function _toWords($num, $power = 0)
	{
		// The return string;
		$ret = '';

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


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

		if (strlen($num) > 6) {
			$current_power = 6;
			// check for highest power
			if (isset($this->_exponent[$power])) {
				// convert the number above the first 6 digits
				// with it's corresponding $power.
				$snum = substr($num, 0, -6);
				$snum = preg_replace('/^0+/', '', $snum);
				if ($snum !== '') {
					$ret .= $this->_toWords($snum, $power + 6);
				}
			}
			$num = substr($num, -6);
			if ($num == 0) {
				return $ret;
			}
		} elseif ($num == 0 || $num == '') {
			return(' '.$this->_digits[0]);
			$current_power = strlen($num);
		} else {
			$current_power = strlen($num);
		}

		// See if we need "thousands"
		$thousands = floor($num / 1000);
		if ($thousands == 1) {
			$ret .= $this->_sep . 'mil';
		} elseif ($thousands > 1) {
			$ret .= $this->_toWords($thousands, 3);
		}

		// values for digits, tens and hundreds
		$h = floor(($num / 100) % 10);
		$t = floor(($num / 10) % 10);
		$d = floor($num % 10);

		// cientos: doscientos, trescientos, etc...
		switch ($h) {
			case 1:
				if (($d == 0) and ($t == 0)) { // is it's '100' use 'cien'
					$ret .= $this->_sep . 'cien';
				} else {
					$ret .= $this->_sep . 'ciento';
				}
			break;
			case 2:
			case 3:
			case 4:
			case 6:
			case 8:
				$ret .= $this->_sep . $this->_digits[$h] . 'cientos';
			break;
			case 5:
				$ret .= $this->_sep . 'quinientos';
			break;
			case 7:
				$ret .= $this->_sep . 'setecientos';
			break;
			case 9:
				$ret .= $this->_sep . 'novecientos';
			break;
		}

		// decenas: veinte, treinta, etc...
		switch ($t) {
			case 9:
				$ret .= $this->_sep . 'noventa';
			break;

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

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

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

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

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

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

			case 2:
				if ($d == 0) {
					$ret .= $this->_sep . 'veinte';
				} else {
					if (($power > 0) and ($d == 1)) {
						$ret .= $this->_sep . 'veintiún';
					} else {
						$ret .= $this->_sep . 'veinti' . $this->_digits[$d];
					}
				}
			break;

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

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

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

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

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

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

					case 6:
					case 7:
					case 9:
					case 8:
						$ret .= $this->_sep . 'dieci' . $this->_digits[$d];
					break;
				}
			break;
		}

		// add digits only if it is a multiple of 10 and not 1x or 2x
		if (($t != 1) and ($t != 2) and ($d > 0)) {
			// don't add 'y' for numbers below 10
			if ($t != 0) {
				// use 'un' instead of 'uno' when there is a suffix ('mil', 'millones', etc...)
				if (($power > 0) and ($d == 1)) {
					$ret .= $this->_sep.' y un';
				} else {
					$ret .= $this->_sep.'y '.$this->_digits[$d];
				}
			} else {
				if (($power > 0) and ($d == 1)) {
					$ret .= $this->_sep.'un';
				} else {
					$ret .= $this->_sep.$this->_digits[$d];
				}
			}
		}

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

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

			// if it's only one use the singular suffix
			if (($d == 1) and ($t == 0) and ($h == 0)) {
				$suffix = $lev[0];
			} else {
				$suffix = $lev[1];
			}
			if ($num != 0) {
				$ret .= $this->_sep . $suffix;
			}
		}

		return $ret;
	}
	// }}}

	// @CHANGE. Add the toCurrencyWords found in lang.en_US

	/**
	* Converts a currency value to its word representation
	* (with monetary units) in Mexican Spanish 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 $convert_fraction Convert fraction to words (left as numeric if set to false).
	*                                  Optional. Defaults to true.
	*
	* @return string  The corresponding word representation for the currency
	*
	* @access public
	* @author Pavel Oropeza
	*/
	function toCurrencyWords($int_curr, $decimal, $fraction = false, $convert_fraction = true)
	{
		if (!isset($this->_currency_names[$int_curr])) {
			$int_curr = $this->def_currency;
		}

		$curr_names = $this->_currency_names[$int_curr];

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

		if ($fraction !== false) {
			if ($convert_fraction) {
				$ret .= $this->_sep .'con'. $this->_sep . trim($this->_toWords($fraction));
			} else {
				$ret .= $this->_sep .'con'. $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] . 's';
				}
			} else {
				$ret .= $this->_sep . $curr_names[1][0];
			}
		}
		return $ret;
	}
}