308 lines
8.6 KiB
PHP
308 lines
8.6 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: */
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//
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// +----------------------------------------------------------------------+
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// | PHP version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/3_0.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Piotr Klaban <makler@man.torun.pl> |
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// +----------------------------------------------------------------------+
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//
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// $Id: lang.en_100.php,v 1.2 2004/09/02 11:07:59 makler Exp $
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//
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// Numbers_Words class extension to spell numbers in Donald Knuth system, in English language.
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//
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/**
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* Class for translating numbers into Donald Knuth system, in English language.
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*
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* @author Piotr Klaban
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* @package Numbers_Words
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*/
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/**
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* Include needed files
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*/
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require_once("Numbers/Words.php");
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/**
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* Class for translating numbers into Donald Knuth system, in English language.
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*
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* @author Piotr Klaban
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* @package Numbers_Words
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*/
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class Numbers_Words_en_100 extends Numbers_Words
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{
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// {{{ properties
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/**
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* Locale name
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* @var string
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* @access public
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*/
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var $locale = 'en_100';
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/**
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* Language name in English
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* @var string
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* @access public
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*/
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var $lang = 'English (Donald Knuth system)';
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/**
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* Native language name
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* @var string
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* @access public
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*/
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var $lang_native = 'English (Donald Knuth system)';
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/**
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* The word for the minus sign
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* @var string
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* @access private
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*/
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var $_minus = 'minus'; // minus sign
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/**
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* The sufixes for exponents (singular and plural)
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* Names based on:
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* http://home.earthlink.net/~mrob/pub/math/largenum.html
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* Donald Knuth system (power of 2)
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* @var array
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* @access private
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*/
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var $_exponent = array(
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0 => array(''),
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2 => array('hundred'),
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4 => array('myriad'),
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8 => array('myllion'),
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16 => array('byllion'),
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32 => array('tryllion'),
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64 => array('quadryllion'),
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128 => array('quintyllion'),
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256 => array('sextyllion'),
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512 => array('septyllion'),
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1024 => array('octyllion'),
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2048 => array('nonyllion'),
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4096 => array('decyllion'),
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8192 => array('undecyllion'),
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16384 => array('duodecyllion'),
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32768 => array('tredecyllion'),
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65536 => array('quattuordecyllion'),
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131072 => array('quindecyllion'),
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262144 => array('sexdecyllion'),
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524288 => array('septendecyllion'),
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1048576 => array('octodecyllion'),
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2097152 => array('novemdecyllion'),
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4194304 => array('vigintyllion')
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);
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/**
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* The array containing the digits (indexed by the digits themselves).
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* @var array
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* @access private
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*/
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var $_digits = array(
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0 => 'zero', 'one', 'two', 'three', 'four',
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'five', 'six', 'seven', 'eight', 'nine'
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);
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/**
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* The word separator
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* @var string
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* @access private
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*/
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var $_sep = ' ';
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// }}}
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// {{{ toWords()
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/**
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* Converts a number to its word representation
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* in Donald Knuth system, in English language.
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*
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* @param integer $num An integer between -infinity and infinity inclusive :)
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* that need to be converted to words
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* @param integer $power The power of ten for the rest of the number to the right.
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* Optional, defaults to 0.
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* @param integer $powsuffix The power name to be added to the end of the return string.
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* Used internally. Optional, defaults to ''.
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*
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* @return string The corresponding word representation
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*
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* @access public
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* @author Piotr Klaban <makler@man.torun.pl>
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* @since PHP 4.2.3
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*/
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function toWords($num, $power = 0, $powsuffix = '') {
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$ret = '';
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// add a minus sign
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if (substr($num, 0, 1) == '-') {
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$ret = $this->_sep . $this->_minus;
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$num = substr($num, 1);
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}
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// strip excessive zero signs and spaces
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$num = trim($num);
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$num = preg_replace('/^0+/','',$num);
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if (strlen($num) > 3) {
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$maxp = strlen($num)-1;
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$curp = $maxp;
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for ($p = $maxp; $p > 0; --$p) { // power
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// check for highest power
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if (isset($this->_exponent[$p])) {
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// send substr from $curp to $p
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$snum = substr($num, $maxp - $curp, $curp - $p + 1);
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$snum = preg_replace('/^0+/','',$snum);
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if ($snum !== '') {
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$cursuffix = $this->_exponent[$power][count($this->_exponent[$power])-1];
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if ($powsuffix != '')
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$cursuffix .= $this->_sep . $powsuffix;
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$ret .= $this->toWords($snum, $p, ''); // $cursuffix);
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// normally cursuffix is added at the end, but not here
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}
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$curp = $p - 1;
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continue;
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}
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}
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$num = substr($num, $maxp - $curp, $curp - $p + 1);
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if ($num == 0) {
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return $ret;
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}
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} elseif ($num == 0 || $num == '') {
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return $this->_sep . $this->_digits[0];
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}
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$h = $t = $d = 0;
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switch(strlen($num)) {
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case 3:
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$h = (int)substr($num,-3,1);
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case 2:
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$t = (int)substr($num,-2,1);
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case 1:
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$d = (int)substr($num,-1,1);
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break;
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case 0:
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return;
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break;
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}
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if ($h) {
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$ret .= $this->_sep . $this->_digits[$h] . $this->_sep . 'hundred';
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// in English only - add ' and' for [1-9]01..[1-9]99
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// (also for 1001..1099, 10001..10099 but it is harder)
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// for now it is switched off, maybe some language purists
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// can force me to enable it, or to remove it completely
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// if (($t + $d) > 0)
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// $ret .= $this->_sep . 'and';
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}
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// ten, twenty etc.
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switch ($t) {
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case 9:
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case 7:
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case 6:
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$ret .= $this->_sep . $this->_digits[$t] . 'ty';
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break;
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case 8:
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$ret .= $this->_sep . 'eighty';
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break;
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case 5:
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$ret .= $this->_sep . 'fifty';
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break;
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case 4:
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$ret .= $this->_sep . 'forty';
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break;
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case 3:
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$ret .= $this->_sep . 'thirty';
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break;
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case 2:
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$ret .= $this->_sep . 'twenty';
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break;
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case 1:
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switch ($d) {
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case 0:
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$ret .= $this->_sep . 'ten';
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break;
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case 1:
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$ret .= $this->_sep . 'eleven';
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break;
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case 2:
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$ret .= $this->_sep . 'twelve';
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break;
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case 3:
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$ret .= $this->_sep . 'thirteen';
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break;
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case 4:
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case 6:
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case 7:
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case 9:
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$ret .= $this->_sep . $this->_digits[$d] . 'teen';
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break;
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case 5:
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$ret .= $this->_sep . 'fifteen';
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break;
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case 8:
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$ret .= $this->_sep . 'eighteen';
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break;
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}
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break;
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}
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if ($t != 1 && $d > 0) { // add digits only in <0>,<1,9> and <21,inf>
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// add minus sign between [2-9] and digit
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if ($t > 1) {
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$ret .= '-' . $this->_digits[$d];
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} else {
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$ret .= $this->_sep . $this->_digits[$d];
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}
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}
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if ($power > 0) {
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if (isset($this->_exponent[$power]))
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$lev = $this->_exponent[$power];
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if (!isset($lev) || !is_array($lev))
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return null;
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$ret .= $this->_sep . $lev[0];
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}
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if ($powsuffix != '')
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$ret .= $this->_sep . $powsuffix;
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return $ret;
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}
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// }}}
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}
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?>
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