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<?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   Erkki Saarniit <erkki@center.ee>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @version  CVS: $Id: lang.et.php 269655 2008-11-25 03:53:39Z clockwerx $
 * @link     http://pear.php.net/package/Numbers_Words
 */
require_once "Numbers/Words.php";

/**
 * Class for translating numbers into Estonian.
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Erkki Saarniit <erkki@center.ee>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @link     http://pear.php.net/package/Numbers_Words
 */
class Numbers_Words_et extends Numbers_Words
{

    // {{{ properties

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

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

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

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

    /**
     * The sufixes for exponents (singular and plural)
     * Names partly based on:
     * http://home.earthlink.net/~mrob/pub/math/largenum.html
     * http://mathforum.org/dr.math/faq/faq.large.numbers.html
     * http://www.mazes.com/AmericanNumberingSystem.html
     * @var array
     * @access private
     */
    var $_exponent = array(
        0 => array(''),
        3 => array('tuhat'),
        6 => array('miljon'),
        9 => array('miljard'),
        12 => array('triljon'),
        15 => array('kvadriljon'),
        18 => array('kvintiljon'),
        21 => array('sekstiljon'),
        24 => array('septiljon'),
        27 => array('oktiljon'),
        30 => array('noniljon'),
        33 => array('dekiljon'),
        36 => array('undekiljon'),
        39 => array('duodekiljon'),
        42 => array('tredekiljon'),
        45 => array('kvattuordekiljon'),
        48 => array('kvindekiljon'),
        51 => array('seksdekiljon'),
        54 => array('septendekiljon'),
        57 => array('oktodekiljon'),
        60 => array('novemdekiljon'),
        63 => array('vigintiljon'),
        66 => array('unvigintiljon'),
        69 => array('duovigintiljon'),
        72 => array('trevigintiljon'),
        75 => array('kvattuorvigintiljon'),
        78 => array('kvinvigintiljon'),
        81 => array('seksvigintiljon'),
        84 => array('septenvigintiljon'),
        87 => array('oktovigintiljon'),
        90 => array('novemvigintiljon'),
        93 => array('trigintiljon'),
        96 => array('untrigintiljon'),
        99 => array('duotrigintiljon'),
       102 => array('trestrigintiljon'),
       105 => array('kvattuortrigintiljon'),
       108 => array('kvintrigintiljon'),
       111 => array('sekstrigintiljon'),
       114 => array('septentrigintiljon'),
       117 => array('oktotrigintiljon'),
       120 => array('novemtrigintiljon'),
       123 => array('kvadragintiljon'),
       126 => array('unkvadragintiljon'),
       129 => array('duokvadragintiljon'),
       132 => array('trekvadragintiljon'),
       135 => array('kvattuorkvadragintiljon'),
       138 => array('kvinkvadragintiljon'),
       141 => array('sekskvadragintiljon'),
       144 => array('septenkvadragintiljon'),
       147 => array('oktokvadragintiljon'),
       150 => array('novemkvadragintiljon'),
       153 => array('kvinkvagintiljon'),
       156 => array('unkvinkvagintiljon'),
       159 => array('duokvinkvagintiljon'),
       162 => array('trekvinkvagintiljon'),
       165 => array('kvattuorkvinkvagintiljon'),
       168 => array('kvinkvinkvagintiljon'),
       171 => array('sekskvinkvagintiljon'),
       174 => array('septenkvinkvagintiljon'),
       177 => array('oktokvinkvagintiljon'),
       180 => array('novemkvinkvagintiljon'),
       183 => array('seksagintiljon'),
       186 => array('unseksagintiljon'),
       189 => array('duoseksagintiljon'),
       192 => array('treseksagintiljon'),
       195 => array('kvattuorseksagintiljon'),
       198 => array('kvinseksagintiljon'),
       201 => array('seksseksagintiljon'),
       204 => array('septenseksagintiljon'),
       207 => array('oktoseksagintiljon'),
       210 => array('novemseksagintiljon'),
       213 => array('septuagintiljon'),
       216 => array('unseptuagintiljon'),
       219 => array('duoseptuagintiljon'),
       222 => array('treseptuagintiljon'),
       225 => array('kvattuorseptuagintiljon'),
       228 => array('kvinseptuagintiljon'),
       231 => array('seksseptuagintiljon'),
       234 => array('septenseptuagintiljon'),
       237 => array('oktoseptuagintiljon'),
       240 => array('novemseptuagintiljon'),
       243 => array('oktogintiljon'),
       246 => array('unoktogintiljon'),
       249 => array('duooktogintiljon'),
       252 => array('treoktogintiljon'),
       255 => array('kvattuoroktogintiljon'),
       258 => array('kvinoktogintiljon'),
       261 => array('seksoktogintiljon'),
       264 => array('septoktogintiljon'),
       267 => array('oktooktogintiljon'),
       270 => array('novemoktogintiljon'),
       273 => array('nonagintiljon'),
       276 => array('unnonagintiljon'),
       279 => array('duononagintiljon'),
       282 => array('trenonagintiljon'),
       285 => array('kvattuornonagintiljon'),
       288 => array('kvinnonagintiljon'),
       291 => array('seksnonagintiljon'),
       294 => array('septennonagintiljon'),
       297 => array('oktononagintiljon'),
       300 => array('novemnonagintiljon'),
       303 => array('kentiljon'),
       309 => array('duokentiljon'),
       312 => array('trekentiljon'),
       366 => array('primo-vigesimo-kentiljon'),
       402 => array('trestrigintakentiljon'),
       603 => array('dukentiljon'),
       624 => array('septendukentiljon'),
       2421 => array('seksoktingentiljon'),
       3003 => array('milliljon'),
       3000003 => array('milli-milliljon'));

    /**
     * The array containing the digits (indexed by the digits themselves).
     * @var array
     * @access private
     */
    var $_digits = array(
        0 => 'null', 'üks', 'kaks', 'kolm', 'neli',
        'viis', 'kuus', 'seitse', 'kaheksa', 'üheksa'
    );

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

    // }}}
    // {{{ toWords()

    /**
     * Converts a number to its word representation
     * in Estonian 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 $powsuffix The power name to be added to the end of the return string.
     *                            Used internally. Optional, defaults to ''.
     *
     * @return string  The corresponding word representation
     *
     * @access public
     * @since  PHP 4.2.3
     */
    function toWords($num, $power = 0, $powsuffix = '')
    {
        $ret = '';

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

        $num = trim($num);
        $num = preg_replace('/^0+/', '', $num);

        if (strlen($num) > 3) {
            $maxp = strlen($num) - 1;
            $curp = $maxp;

            for ($p = $maxp; $p > 0; --$p) { // power
                if (isset($this->_exponent[$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) {
            $ret .= $this->_sep . $this->_digits[$h] . 'sada';
        }

        switch ($t) {
        case 9:
        case 8:
        case 7:
        case 6:
        case 5:
        case 4:
        case 3:
        case 2:
            $ret .= $this->_sep . $this->_digits[$t] . 'kümmend';
            break;

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

            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
            case 6:
            case 7:
            case 8:
            case 9:
                $ret .= $this->_sep . $this->_digits[$d] . 'teist';
                break;
            }

            break;
        }

        if ($t != 1 && $d > 0) {
            if ($t > 1) {
                $ret .= ' ' . $this->_digits[$d];
            } 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;
            }

            $ret .= $this->_sep . $lev[0].($num != 1 && $power!= 3 ? 'it' : '');
        }

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

        return $ret;
    }
    // }}}
}

?>