NumberFormat js

function NumberFormat(num, inputDecimal) {
    this.VERSION = 'Number Format v1.5.4';
    this.COMMA = ',';
    this.PERIOD = '.';
    this.DASH = '-';
    this.LEFT_PAREN = '(';
    this.RIGHT_PAREN = ')';
    this.LEFT_OUTSIDE = 0;
    this.LEFT_INSIDE = 1;
    this.RIGHT_INSIDE = 2;
    this.RIGHT_OUTSIDE = 3;
    this.LEFT_DASH = 0;
    this.RIGHT_DASH = 1;
    this.PARENTHESIS = 2;
    this.NO_ROUNDING = -1
    this.num;
    this.numOriginal;
    this.hasSeparators = false;
    this.separatorValue;
    this.inputDecimalValue;
    this.decimalValue;
    this.negativeFormat;
    this.negativeRed;
    this.hasCurrency;
    this.currencyPosition;
    this.currencyValue;
    this.places;
    this.roundToPlaces;
    this.truncate;
    this.setNumber = setNumberNF;
    this.toUnformatted = toUnformattedNF;
    this.setInputDecimal = setInputDecimalNF;
    this.setSeparators = setSeparatorsNF;
    this.setCommas = setCommasNF;
    this.setNegativeFormat = setNegativeFormatNF;
    this.setNegativeRed = setNegativeRedNF;
    this.setCurrency = setCurrencyNF;
    this.setCurrencyPrefix = setCurrencyPrefixNF;
    this.setCurrencyValue = setCurrencyValueNF;
    this.setCurrencyPosition = setCurrencyPositionNF;
    this.setPlaces = setPlacesNF;
    this.toFormatted = toFormattedNF;
    this.toPercentage = toPercentageNF;
    this.getOriginal = getOriginalNF;
    this.moveDecimalRight = moveDecimalRightNF;
    this.moveDecimalLeft = moveDecimalLeftNF;
    this.getRounded = getRoundedNF;
    this.preserveZeros = preserveZerosNF;
    this.justNumber = justNumberNF;
    this.expandExponential = expandExponentialNF;
    this.getZeros = getZerosNF;
    this.moveDecimalAsString = moveDecimalAsStringNF;
    this.moveDecimal = moveDecimalNF;
    this.addSeparators = addSeparatorsNF;
    if (inputDecimal == null) {
        this.setNumber(num, this.PERIOD);
    } else {
        this.setNumber(num, inputDecimal);
    }
    this.setCommas(true);
    this.setNegativeFormat(this.LEFT_DASH);
    this.setNegativeRed(false);
    this.setCurrency(false);
    this.setCurrencyPrefix('$');
    this.setPlaces(2);
}

function setInputDecimalNF(val) {
    this.inputDecimalValue = val;
}

function setNumberNF(num, inputDecimal) {
    if (inputDecimal != null) {
        this.setInputDecimal(inputDecimal);
    }
    this.numOriginal = num;
    this.num = this.justNumber(num);
}

function toUnformattedNF() {
    return (this.num);
}

function getOriginalNF() {
    return (this.numOriginal);
}

function setNegativeFormatNF(format) {
    this.negativeFormat = format;
}

function setNegativeRedNF(isRed) {
    this.negativeRed = isRed;
}

function setSeparatorsNF(isC, separator, decimal) {
    this.hasSeparators = isC;
    if (separator == null) separator = this.COMMA;
    if (decimal == null) decimal = this.PERIOD;
    if (separator == decimal) {
        this.decimalValue = (decimal == this.PERIOD) ? this.COMMA : this.PERIOD;
    } else {
        this.decimalValue = decimal;
    }
    this.separatorValue = separator;
}

function setCommasNF(isC) {
    this.setSeparators(isC, this.COMMA, this.PERIOD);
}

function setCurrencyNF(isC) {
    this.hasCurrency = isC;
}

function setCurrencyValueNF(val) {
    this.currencyValue = val;
}

function setCurrencyPrefixNF(cp) {
    this.setCurrencyValue(cp);
    this.setCurrencyPosition(this.LEFT_OUTSIDE);
}

function setCurrencyPositionNF(cp) {
    this.currencyPosition = cp
}

function setPlacesNF(p, tr) {
    this.roundToPlaces = !(p == this.NO_ROUNDING);
    this.truncate = (tr != null && tr);
    this.places = (p < 0) ? 0 : p;
}

function addSeparatorsNF(nStr, inD, outD, sep) {
    nStr += '';
    var dpos = nStr.indexOf(inD);
    var nStrEnd = '';
    if (dpos != -1) {
        nStrEnd = outD + nStr.substring(dpos + 1, nStr.length);
        nStr = nStr.substring(0, dpos);
    }
    var rgx = /(\d+)(\d{3})/;
    while (rgx.test(nStr)) {
        nStr = nStr.replace(rgx, '$1' + sep + '$2');
    }
    return nStr + nStrEnd;
}

function toFormattedNF() {
    var pos;
    var nNum = this.num;
    var nStr;
    var splitString = new Array(2);
    if (this.roundToPlaces) {
        nNum = this.getRounded(nNum);
        nStr = this.preserveZeros(Math.abs(nNum));
    } else {
        nStr = this.expandExponential(Math.abs(nNum));
    }
    if (this.hasSeparators) {
        nStr = this.addSeparators(nStr, this.PERIOD, this.decimalValue, this.separatorValue);
    } else {
        nStr = nStr.replace(new RegExp('\\' + this.PERIOD), this.decimalValue);
    }
    var c0 = '';
    var n0 = '';
    var c1 = '';
    var n1 = '';
    var n2 = '';
    var c2 = '';
    var n3 = '';
    var c3 = '';
    var negSignL = (this.negativeFormat == this.PARENTHESIS) ? this.LEFT_PAREN : this.DASH;
    var negSignR = (this.negativeFormat == this.PARENTHESIS) ? this.RIGHT_PAREN : this.DASH;
    if (this.currencyPosition == this.LEFT_OUTSIDE) {
        if (nNum < 0) {
            if (this.negativeFormat == this.LEFT_DASH || this.negativeFormat == this.PARENTHESIS) n1 = negSignL;
            if (this.negativeFormat == this.RIGHT_DASH || this.negativeFormat == this.PARENTHESIS) n2 = negSignR;
        }
        if (this.hasCurrency) c0 = this.currencyValue;
    } else if (this.currencyPosition == this.LEFT_INSIDE) {
        if (nNum < 0) {
            if (this.negativeFormat == this.LEFT_DASH || this.negativeFormat == this.PARENTHESIS) n0 = negSignL;
            if (this.negativeFormat == this.RIGHT_DASH || this.negativeFormat == this.PARENTHESIS) n3 = negSignR;
        }
        if (this.hasCurrency) c1 = this.currencyValue;
    } else if (this.currencyPosition == this.RIGHT_INSIDE) {
        if (nNum < 0) {
            if (this.negativeFormat == this.LEFT_DASH || this.negativeFormat == this.PARENTHESIS) n0 = negSignL;
            if (this.negativeFormat == this.RIGHT_DASH || this.negativeFormat == this.PARENTHESIS) n3 = negSignR;
        }
        if (this.hasCurrency) c2 = this.currencyValue;
    } else if (this.currencyPosition == this.RIGHT_OUTSIDE) {
        if (nNum < 0) {
            if (this.negativeFormat == this.LEFT_DASH || this.negativeFormat == this.PARENTHESIS) n1 = negSignL;
            if (this.negativeFormat == this.RIGHT_DASH || this.negativeFormat == this.PARENTHESIS) n2 = negSignR;
        }
        if (this.hasCurrency) c3 = this.currencyValue;
    }
    nStr = c0 + n0 + c1 + n1 + nStr + n2 + c2 + n3 + c3;
    if (this.negativeRed && nNum < 0) {
        nStr = '<font color="red">' + nStr + '</font>';
    }
    return (nStr);
}

function toPercentageNF() {
    nNum = this.num * 100;
    nNum = this.getRounded(nNum);
    return nNum + '%';
}

function getZerosNF(places) {
    var extraZ = '';
    var i;
    for (i = 0; i < places; i++) {
        extraZ += '0';
    }
    return extraZ;
}

function expandExponentialNF(origVal) {
    if (isNaN(origVal)) return origVal;
    var newVal = parseFloat(origVal) + '';
    var eLoc = newVal.toLowerCase().indexOf('e');
    if (eLoc != -1) {
        var plusLoc = newVal.toLowerCase().indexOf('+');
        var negLoc = newVal.toLowerCase().indexOf('-', eLoc);
        var justNumber = newVal.substring(0, eLoc);
        if (negLoc != -1) {
            var places = newVal.substring(negLoc + 1, newVal.length);
            justNumber = this.moveDecimalAsString(justNumber, true, parseInt(places));
        } else {
            if (plusLoc == -1) plusLoc = eLoc;
            var places = newVal.substring(plusLoc + 1, newVal.length);
            justNumber = this.moveDecimalAsString(justNumber, false, parseInt(places));
        }
        newVal = justNumber;
    }
    return newVal;
}

function moveDecimalRightNF(val, places) {
    var newVal = '';
    if (places == null) {
        newVal = this.moveDecimal(val, false);
    } else {
        newVal = this.moveDecimal(val, false, places);
    }
    return newVal;
}

function moveDecimalLeftNF(val, places) {
    var newVal = '';
    if (places == null) {
        newVal = this.moveDecimal(val, true);
    } else {
        newVal = this.moveDecimal(val, true, places);
    }
    return newVal;
}

function moveDecimalAsStringNF(val, left, places) {
    var spaces = (arguments.length < 3) ? this.places : places;
    if (spaces <= 0) return val;
    var newVal = val + '';
    var extraZ = this.getZeros(spaces);
    var re1 = new RegExp('([0-9.]+)');
    if (left) {
        newVal = newVal.replace(re1, extraZ + '$1');
        var re2 = new RegExp('(-?)([0-9]*)([0-9]{' + spaces + '})(\\.?)');
        newVal = newVal.replace(re2, '$1$2.$3');
    } else {
        var reArray = re1.exec(newVal);
        if (reArray != null) {
            newVal = newVal.substring(0, reArray.index) + reArray[1] + extraZ + newVal.substring(reArray.index + reArray[0].length);
        }
        var re2 = new RegExp('(-?)([0-9]*)(\\.?)([0-9]{' + spaces + '})');
        newVal = newVal.replace(re2, '$1$2$4.');
    }
    newVal = newVal.replace(/\.$/, '');
    return newVal;
}

function moveDecimalNF(val, left, places) {
    var newVal = '';
    if (places == null) {
        newVal = this.moveDecimalAsString(val, left);
    } else {
        newVal = this.moveDecimalAsString(val, left, places);
    }
    return parseFloat(newVal);
}

function getRoundedNF(val) {
    val = this.moveDecimalRight(val);
    if (this.truncate) {
        val = val >= 0 ? Math.floor(val) : Math.ceil(val);
    } else {
        val = Math.round(val);
    }
    val = this.moveDecimalLeft(val);
    return val;
}

function preserveZerosNF(val) {
    var i;
    val = this.expandExponential(val);
    if (this.places <= 0) return val;
    var decimalPos = val.indexOf('.');
    if (decimalPos == -1) {
        val += '.';
        for (i = 0; i < this.places; i++) {
            val += '0';
        }
    } else {
        var actualDecimals = (val.length - 1) - decimalPos;
        var difference = this.places - actualDecimals;
        for (i = 0; i < difference; i++) {
            val += '0';
        }
    }
    return val;
}

function justNumberNF(val) {
    newVal = val + '';
    var isPercentage = false;
    if (newVal.indexOf('%') != -1) {
        newVal = newVal.replace(/\%/g, '');
        isPercentage = true;
    }
    var re = new RegExp('[^\\' + this.inputDecimalValue + '\\d\\-\\+\\(\\)eE]', 'g');
    newVal = newVal.replace(re, '');
    var tempRe = new RegExp('[' + this.inputDecimalValue + ']', 'g');
    var treArray = tempRe.exec(newVal);
    if (treArray != null) {
        var tempRight = newVal.substring(treArray.index + treArray[0].length);
        newVal = newVal.substring(0, treArray.index) + this.PERIOD + tempRight.replace(tempRe, '');
    }
    if (newVal.charAt(newVal.length - 1) == this.DASH) {
        newVal = newVal.substring(0, newVal.length - 1);
        newVal = '-' + newVal;
    } else if (newVal.charAt(0) == this.LEFT_PAREN && newVal.charAt(newVal.length - 1) == this.RIGHT_PAREN) {
        newVal = newVal.substring(1, newVal.length - 1);
        newVal = '-' + newVal;
    }
    newVal = parseFloat(newVal);
    if (!isFinite(newVal)) {
        newVal = 0;
    }
    if (isPercentage) {
        newVal = this.moveDecimalLeft(newVal, 2);
    }
    return newVal;
}