sprintfWrapper={init : function(){if(typeof arguments=="undefined"){return null};if(arguments.length<1){return null};if(typeof arguments[0]!="string"){return null};if(typeof RegExp=="undefined"){return null};var string=arguments[0];var exp=new RegExp(/(%([%]|(\-)?(\+|\x20)?(0)?(\d+)?(\.(\d)?)?([bcdfosxX])))/g);var matches=new Array();var strings=new Array();var convCount=0;var stringPosStart=0;var stringPosEnd=0;var matchPosEnd=0;var newString='';var match=null;while(match=exp.exec(string)){if(match[9]){convCount+=1};stringPosStart=matchPosEnd;stringPosEnd=exp.lastIndex-match[0].length;strings[strings.length]=string.substring(stringPosStart,stringPosEnd);matchPosEnd=exp.lastIndex;matches[matches.length]={match: match[0],left: match[3]? true : false,sign: match[4]||'',pad: match[5]||' ',min: match[6]||0,precision: match[8],code: match[9]||'%',negative: parseInt(arguments[convCount])<0 ? true : false,argument: String(arguments[convCount])}};strings[strings.length]=string.substring(matchPosEnd);if(matches.length==0){return string};if((arguments.length-1)<convCount){return null};var code=null;var match=null;var i=null;for (i=0; i<matches.length; i++){if(matches[i].code=='%'){substitution='%'}else if(matches[i].code=='b'){matches[i].argument=String(Math.abs(parseInt(matches[i].argument)).toString(2));substitution=sprintfWrapper.convert(matches[i],true)}else if(matches[i].code=='c'){matches[i].argument=String(String.fromCharCode(parseInt(Math.abs(parseInt(matches[i].argument)))));substitution=sprintfWrapper.convert(matches[i],true)}else if(matches[i].code=='d'){matches[i].argument=String(Math.abs(parseInt(matches[i].argument)));substitution=sprintfWrapper.convert(matches[i])}else if(matches[i].code=='f'){matches[i].argument=String(Math.abs(parseFloat(matches[i].argument)).toFixed(matches[i].precision ? matches[i].precision : 6));substitution=sprintfWrapper.convert(matches[i])}else if(matches[i].code=='o'){matches[i].argument=String(Math.abs(parseInt(matches[i].argument)).toString(8));substitution=sprintfWrapper.convert(matches[i])}else if(matches[i].code=='s'){matches[i].argument=matches[i].argument.substring(0,matches[i].precision ? matches[i].precision : matches[i].argument.length);substitution=sprintfWrapper.convert(matches[i],true)}else if(matches[i].code=='x'){matches[i].argument=String(Math.abs(parseInt(matches[i].argument)).toString(16));substitution=sprintfWrapper.convert(matches[i])}else if(matches[i].code=='X'){matches[i].argument=String(Math.abs(parseInt(matches[i].argument)).toString(16));substitution=sprintfWrapper.convert(matches[i]).toUpperCase()}else {substitution=matches[i].match};newString+=strings[i];newString+=substitution};newString+=strings[i];return newString},convert : function(match,nosign){if(nosign){match.sign=''}else {match.sign=match.negative ? '-' : match.sign};var l=match.min-match.argument.length+1-match.sign.length;var pad=new Array(l<0 ? 0 : l).join(match.pad);if(!match.left){if(match.pad=="0"||nosign){return match.sign+pad+match.argument}else {return pad+match.sign+match.argument}}else {if(match.pad=="0"||nosign){return match.sign+match.argument+pad.replace(/0/g,' ')}else {return match.sign+match.argument+pad}}}};sprintf=sprintfWrapper.init