<?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.
 *
 * Authors: Piotr Klaban <makler@man.torun.pl>
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Piotr Klaban <makler@man.torun.pl>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @version  CVS: $Id: Words.php 295090 2010-02-15 06:38:34Z clockwerx $
 * @link     http://pear.php.net/package/Numbers_Words
 */

// {{{ Numbers_Words

/**
 * The Numbers_Words class provides method to convert arabic numerals to words.
 *
 * @category Numbers
 * @package  Numbers_Words
 * @author   Piotr Klaban <makler@man.torun.pl>
 * @license  PHP 3.0 http://www.php.net/license/3_0.txt
 * @link     http://pear.php.net/package/Numbers_Words
 * @since    PHP 4.2.3
 * @access   public
 */
class Numbers_Words
{
    // {{{ toWords()

    /**
     * Converts a number to its word representation
     *
     * @param integer $num    An integer between -infinity and infinity inclusive :)
     *                        that should be converted to a words representation
     * @param string  $locale Language name abbreviation. Optional. Defaults to en_US.
     *
     * @access public
     * @author Piotr Klaban <makler@man.torun.pl>
     * @since  PHP 4.2.3
     * @return string  The corresponding word representation
     */
    function toWords($num, $locale = 'en_INDIAN')
    {

        include_once "Numbers/Words/lang.${locale}.php";

        $classname = "Numbers_Words_${locale}";

        if (!class_exists($classname)) {
            return Numbers_Words::raiseError("Unable to include the Numbers/Words/lang.${locale}.php file");
        }

        $methods = get_class_methods($classname);

        if (!in_array('toWords', $methods) && !in_array('towords', $methods)) {
            return Numbers_Words::raiseError("Unable to find toWords method in '$classname' class");
        }

        @$obj = new $classname;

        if (!is_int($num)) {
            // cast (sanitize) to int without losing precision
            $num = preg_replace('/^[^\d]*?(-?)[ \t\n]*?(\d+)([^\d].*?)?$/', '$1$2', $num);
        }

        return trim($obj->toWords($num));
    }
	
	// for indain num format
	 function makeComma($input){

	
	 // This function is written by some anonymous person - I got it from Google
	 if(strlen($input)<=2)
	 { return $input; }
	 $length=substr($input,0,strlen($input)-2);
	 $formatted_input = $this->makeComma($length).",".substr($input,-2);
	
	 return $formatted_input;
	 } 	
	 
function formatInIndianStyle($num){
 $pos = strpos((string)$num, ".");
 if ($pos === false) {
 $decimalpart="00"; 
 }
 if (!($pos === false)) {
 $decimalpart= substr($num, $pos+1, 2); $num = substr($num,0,$pos);
 }

 if(strlen($num)>3 & strlen($num) <= 12){
 $last3digits = substr($num, -3 );
 $numexceptlastdigits = substr($num, 0, -3 );
 $formatted =$this-> makeComma($numexceptlastdigits);

 $stringtoreturn = $formatted.",".$last3digits.".".$decimalpart ; 
 
 }elseif(strlen($num)<=3){
 $stringtoreturn = $num.".".$decimalpart ;
 }elseif(strlen($num)>12){
 $stringtoreturn = number_format($num, 2);
 }

 if(substr($stringtoreturn,0,2)=="-,"){
 $stringtoreturn = "-".substr($stringtoreturn,2 );
 }

 return $stringtoreturn;
 }


	
	 //end
	 
	 
	 
	 
	 
    function toCurrency($num, $locale = 'en_US', $int_curr = '')
    {
        $ret = $num;

        @include_once "Numbers/Words/lang.${locale}.php";

        $classname = "Numbers_Words_${locale}";

        if (!class_exists($classname)) {
            return Numbers_Words::raiseError("Unable to include the Numbers/Words/lang.${locale}.php file");
        }

        $methods = get_class_methods($classname);

        if (!in_array('toCurrencyWords', $methods) && !in_array('tocurrencywords', $methods)) {
            return Numbers_Words::raiseError("Unable to find toCurrencyWords method in '$classname' class");
        }

        @$obj = new $classname;

        // round if a float is passed, use Math_BigInteger otherwise
        if (is_float($num)) {
            $num = round($num, 2);
        }

        if (strpos($num, '.') === false) {
            return trim($obj->toCurrencyWords($int_curr, $num));
        }

        $currency = explode('.', $num, 2);

        $len = strlen($currency[1]);

        if ($len == 1) {
            // add leading zero
            $currency[1] .= '0';
        } elseif ($len > 2) {
            // get the 3rd digit after the comma
            $round_digit = substr($currency[1], 2, 1);
            
            // cut everything after the 2nd digit
            $currency[1] = substr($currency[1], 0, 2);
            
            if ($round_digit >= 5) {
                // round up without losing precision
                include_once "Math/BigInteger.php";

                $int = new Math_BigInteger(join($currency));
                $int = $int->add(new Math_BigInteger(1));
                $int_str = $int->toString();

                $currency[0] = substr($int_str, 0, -2);
                $currency[1] = substr($int_str, -2);

                // check if the rounded decimal part became zero
                if ($currency[1] == '00') {
                    $currency[1] = false;
                }
            }
        }

        return trim($obj->toCurrencyWords($int_curr, $currency[0], $currency[1]));
    }
    // }}}

    // {{{ getLocales()
    /**
     * Lists available locales for Numbers_Words
     *
     * @param mixed $locale string/array of strings $locale
     *                 Optional searched language name abbreviation.
     *                 Default: all available locales.
     *
     * @return array   The available locales (optionaly only the requested ones)
     * @author Piotr Klaban <makler@man.torun.pl>
     * @author Bertrand Gugger, bertrand at toggg dot com
     *
     * @access public
     * @static
     * @return mixed[]
     */
    function getLocales($locale = null)
    {
        $ret = array();
        if (isset($locale) && is_string($locale)) {
            $locale = array($locale);
        }

        $dname = dirname(__FILE__) . DIRECTORY_SEPARATOR . 'Words' . DIRECTORY_SEPARATOR;

        $dh = opendir($dname);

        if ($dh) {
            while ($fname = readdir($dh)) {
                if (preg_match('#^lang\.([a-z_]+)\.php$#i', $fname, $matches)) {
                    if (is_file($dname . $fname) && is_readable($dname . $fname) &&
                        (!isset($locale) || in_array($matches[1], $locale))) {
                        $ret[] = $matches[1];
                    }
                }
            }
            closedir($dh);
            sort($ret);
        }

        return $ret;
    }
    // }}}

    // {{{ raiseError()
    /**
     * Trigger a PEAR error
     *
     * To improve performances, the PEAR.php file is included dynamically.
     *
     * @param string $msg error message
     *
     * @return PEAR_Error
     */
    function raiseError($msg)
    {
        include_once 'PEAR.php';
        return PEAR::raiseError($msg);
    }
    // }}}
}

// }}}
?>
