gistfile1.js

(function () {
    $ns('mnbb.global');
    
    var Util = mnbb.global.Util = function () {
        var DECIMAL_SEP = '.';
        var THOUSANDS_SEP = ',';
        
        function eachIsNumber (strs) {
            for(var i = 0; i < strs.length; i++ ) {
                if (isNaN(strs[i])) {
                    return false;
                }
            }
            
            return true;
        }
        
        return {
            parseToCurrency: function (str) {
                if (str.length === 0) {
                    return 'error';
                }
                var result = '';
                var pieces = str.split(DECIMAL_SEP);
                if (pieces.length > 2) {
                    return 'error';
                }
                
                var thousandsPieces = pieces[0].split(THOUSANDS_SEP);
                if (!eachIsNumber(thousandsPieces)) {
                    return 'error';
                }
                
                if (pieces.length == 1 || pieces[1].length === 0) {
                    result = pieces[0] + '.00';
                } else if (pieces.length == 2) {
                    var decimal = pieces[1];
                    if (isNaN(decimal)) {
                        return 'error';
                    }
                    if (decimal.length >= 2) {
                        decimal = decimal.substr(0,2);
                        result = pieces[0] + '.' + decimal;
                    }
                    if (decimal.length === 1) {
                        result = pieces[0] + '.' + pieces[1] + '0';
                    }
                }
                
                return result;
            }
        };
    }();
})();