/*
* jQuery romannumerals - Roman Numberl converter plugin - v 1.0.0
* http://plugins.jquery.com/project/romannumerals
*
* Copyright (c) 2007-2008 Doug Sparling <http://www.dougsparling.com>
* Licensed under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
*/
(function($) {
$.fn.romannumerals = function(options) {
var version = '1.0.0';
// options
var opts = $.extend({}, $.fn.romannumerals.defaults, options);
// iterate convert each matched element
return this.each(function() {
$this = $(this);
// build element specific options
var o = $.meta ? $.extend({}, opts, $this.data()) : opts;
// update element styles
$this.css({
fontFamily: o.fontFamily,
fontSize: o.fontSize,
color: o.foreground,
backgroundColor: o.background
});
var number = $this.html();
// call arabicToRoman function
var romanNumber = $.fn.romannumerals.arabicToRoman(number);
$this.html(romanNumber);
});
};
//
// define and expose arabicToRoman function (4999 max)
// http://groups.google.com/group/pl.comp.lang.javascript/msg/c8991a94f77c98ce
$.fn.romannumerals.arabicToRoman = function(N,s,b,a,o,t) {
for(s=b='',a=5;N;b++,a^=7) {
for(o=N%a,N=N/a^0;o--;) {
s='IVXLCDM'.charAt(o>2?b+N-(N&=~1)+(o=1):b)+s;
}
}
return s
}
//
// define and expose arabicToRoman function
// http://blog.stevenlevithan.com/archives/javascript-roman-numeral-converter
$.fn.romannumerals.arabicToRoman2 = function(N,s,b,a,o,t) {
t=N/1e3|0;N%=1e3;
for(s=b='',a=5;N;b++,a^=7) {
for(o=N%a,N=N/a^0;o--;) {
s='IVXLCDM'.charAt(o>2?b+N-(N&=~1)+(o=1):b)+s;
}
}
return Array(t+1).join('M')+s;
}
//
// plugin defaults
//
$.fn.romannumerals.defaults = {
fontFamily: '',
fontSize: '',
foreground: '',
background: ''
};
})(jQuery);
/*
* http://en.wikipedia.org/wiki/Roman_numerals
* http://blog.stevenlevithan.com/archives/javascript-roman-numeral-converter
* http://groups.google.com/group/pl.comp.lang.javascript/msg/c8991a94f77c98ce
* http://ostermiller.org/calc/roman.html
* http://www.ivtech.com/roman/faq.php
*/
