// from http://www.esqsoft.com/javascript_examples/javascript-sprintf.js

function sprintf() {

if (!arguments || arguments.length < 1 || !RegExp) {

return;

}

var str = arguments[0];

var re = /([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X)(.*)/;

var a = b = [], numSubstitutions = 0, numMatches = 0;

while (a = re.exec(str)) {

var leftpart = a[1], pPad = a[2], pJustify = a[3], pMinLength = a[4];

var pPrecision = a[5], pType = a[6], rightPart = a[7];

numMatches++;

if (pType == '%') {

subst = '%';

} else {

numSubstitutions++;

if (numSubstitutions >= arguments.length) {

qWarning('Error! Not enough function arguments ('

+ (arguments.length - 1)

+ ', excluding the string)\n'

+ 'for the number of substitution parameters in string ('

+ numSubstitutions + ' so far).');

}

var param = arguments[numSubstitutions];

var pad = '';

if (pPad && pPad.substr(0, 1) == "'")

pad = leftpart.substr(1, 1);

else if (pPad)

pad = pPad;

var justifyRight = true;

if (pJustify && pJustify === "-")

justifyRight = false;

var minLength = -1;

if (pMinLength)

minLength = parseInt(pMinLength);

var precision = -1;

if (pPrecision && pType == 'f')

precision = parseInt(pPrecision.substring(1));

var subst = param;

switch (pType) {

case 'b':

subst = parseInt(param).toString(2);

break;

case 'c':

subst = String.fromCharCode(parseInt(param));

break;

case 'd':

subst = parseInt(param) ? parseInt(param) : 0;

break;

case 'u':

subst = Math.abs(param);

break;

case 'f':

subst = (precision > -1) ? Math.round(parseFloat(param)

* Math.pow(10, precision))

/ Math.pow(10, precision) : parseFloat(param);

break;

case 'o':

subst = parseInt(param).toString(8);

break;

case 's':

subst = param;

break;

case 'x':

subst = ('' + parseInt(param).toString(16)).toLowerCase();

break;

case 'X':

subst = ('' + parseInt(param).toString(16)).toUpperCase();

break;

}

var padLeft = minLength - subst.toString().length;

if (padLeft > 0) {

var arrTmp = new Array(padLeft + 1);

var padding = arrTmp.join(pad ? pad : " ");

} else {

var padding = "";

}

}

str = leftpart + padding + subst + rightPart;

}

return str;

}