求解一个与日期有关的正则表达式
+1y -2m +3w -4d
需要验证jQueryUI Datepicker的日期参数格式是否符合要求，其中y，m，w，d分别表示年，月，周，日，4者任意搭配，但不能重复出现，请问各位前辈这个正则该怎么写呢？
[解决办法]
对于页面的时间输入，你可以让用户选择，而不是直接输入
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Test</title></head>日期:<input type="text" class="input2" name="date1" id="startTime" readonly="readonly" onClick="this.value='';fPopCalendar(this,this,this.value);return false;"/><font color="#CCCCCC">点击输入框选择日期</font><script>function getNowDate(){ var nn=new Date(); year1=nn.getYear(); mon1=nn.getMonth()+1; date1=nn.getDate(); var monstr1; var datestr1 if(mon1<10) monstr1="0"+mon1; else monstr1=""+mon1; if(date1<10) datestr1="0"+date1; else datestr1=""+date1; return year1+"-"+monstr1+"-"+datestr1;}//last datefunction getlastweekDate(){ var nn=new Date(); year1=nn.getYear(); mon1=nn.getMonth()+1; date1=nn.getDate(); var mm=new Date(year1,mon1-1,date1); var tmp1=new Date(2000,1,1); var tmp2=new Date(2000,1,15); var ne=tmp2-tmp1; var mm2=new Date(); mm2.setTime(mm.getTime()-ne); year2=mm2.getYear(); mon2=mm2.getMonth()+1; date2=mm2.getDate(); if(mon2<10) monstr2="0"+mon2; else monstr2=""+mon2; if(date2<10) datestr2="0"+date2; else datestr2=""+date2; return year2+"-"+monstr2+"-"+datestr2;} var gdCtrl = new Object();var goSelectTag = new Array();var gcGray = "#808080";var gcToggle = "#FB8664";var gcBG = "#e5e6ec";var previousObject = null;var gdCurDate = new Date();var giYear = gdCurDate.getFullYear();var giMonth = gdCurDate.getMonth()+1;var giDay = gdCurDate.getDate();function fSetDate(iYear, iMonth, iDay){var VicPopCal = document.getElementById('VicPopCal'); VicPopCal.style.visibility = "hidden"; if ((iYear == 0) && (iMonth == 0) && (iDay == 0)){ gdCtrl.value = ""; }else{ iMonth = iMonth + 100 + ""; iMonth = iMonth.substring(1); iDay = iDay + 100 + ""; iDay = iDay.substring(1); if(gdCtrl.tagName == "INPUT"){ gdCtrl.value = iYear+"-"+iMonth+"-"+iDay; }else{ gdCtrl.innerText = iYear+"-"+iMonth+"-"+iDay; } } for (i in goSelectTag) goSelectTag[i].style.visibility = "visible"; goSelectTag.length = 0; window.returnValue=gdCtrl.value; //window.close();}function HiddenDiv(){var VicPopCal = document.getElementById('VicPopCal'); var i; VicPopCal.style.visibility = "hidden"; for (i in goSelectTag) goSelectTag[i].style.visibility = "visible"; goSelectTag.length = 0;}function fSetSelected(aCell){var tbSelMonth1 = document.getElementById('tbSelMonth');var tbSelYear1 = document.getElementById('tbSelYear'); var iOffset = 0; var iYear = parseInt(tbSelYear1.value); var iMonth = parseInt(tbSelMonth1.value); aCell.bgColor = gcBG; // with (aCell.children["cellText"]){ with (aCell.childNodes[0]){ var iDay = parseInt(innerHTML); if (color==gcGray) iOffset = (Victor<10)?-1:1; iMonth += iOffset; if (iMonth<1) { iYear--; iMonth = 12; }else if (iMonth>12){ iYear++; iMonth = 1; } } fSetDate(iYear, iMonth, iDay);}function Point(iX, iY){ this.x = iX; this.y = iY;}function fBuildCal(iYear, iMonth) { var aMonth=new Array(); for(i=1;i<7;i++) aMonth[i]=new Array(i); var dCalDate=new Date(iYear, iMonth-1, 1); var iDayOfFirst=dCalDate.getDay(); var iDaysInMonth=new Date(iYear, iMonth, 0).getDate(); var iOffsetLast=new Date(iYear, iMonth-1, 0).getDate()-iDayOfFirst+1; var iDate = 1; var iNext = 1; for (d = 0; d < 7; d++) aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++; for (w = 2; w < 7; w++) for (d = 0; d < 7; d++) aMonth[w][d] = (iDate<=iDaysInMonth)?iDate++:-(iNext++); return aMonth;}
[解决办法]
续上
function fDrawCal(iYear, iMonth, iCellHeight, sDateTextSize) { //var WeekDay = new Array("S","M","T","W","T","W","S"); var WeekDay = new Array("日","一","二","三","四","五","六"); var styleTD = " bgcolor='"+gcBG+"' bordercolor='"+gcBG+"' valign='middle' align='center' height='"+iCellHeight+"' style='font:bold arial "+sDateTextSize+";"; //Coded by Hcy email:hcy110@263.net with (document) { write("<tr>"); for(i=0; i<7; i++){ write("<td "+styleTD+"color:maroon' >"+ WeekDay[i] + "</td>"); } write("</tr>"); for (w = 1; w < 7; w++) { write("<tr>"); for (d = 0; d < 7; d++) { write("<td id='calCell' "+styleTD+"cursor:pointer;' onMouseOver='this.bgColor=gcToggle' onMouseOut='this.bgColor=gcBG' onclick='fSetSelected(this)'>"); write("<font id='cellText' name='cellText' Victor='Hcy_Flag'> </font>"); write("</td>") } write("</tr>"); } }}function fUpdateCal() {iYear = document.getElementById('tbSelYear').value;iMonth = document.getElementById('tbSelMonth').value; myMonth = fBuildCal(iYear, iMonth); var cellText = document.getElementsByName('cellText'); var i = 0; for (w = 0; w < 6; w++) for (d = 0; d < 7; d++) with (cellText[(7*w)+d]) { Victor = i++; if (myMonth[w+1][d]<0) { color = gcGray; innerHTML = -myMonth[w+1][d]; }else{ color = ((d==0)||(d==6))?"red":"black"; innerHTML = myMonth[w+1][d]; } } }function fSetYearMon(iYear, iMon){ var tbSelMonth = document.getElementById('tbSelMonth'); tbSelMonth.options[iMon-1].selected = true; var tbSelYear = document.getElementById('tbSelYear'); for (i = 0; i < tbSelYear.length; i++) if (tbSelYear.options[i].value == iYear) tbSelYear.options[i].selected = true; fUpdateCal(iYear, iMon); }function fPrevMonth(){var tbSelYear = document.getElementById('tbSelYear');var tbSelMonth = document.getElementById('tbSelMonth'); var iMon = tbSelMonth.value; var iYear = tbSelYear.value; if (--iMon<1) { iMon = 12; iYear--; } fSetYearMon(iYear, iMon);}function fNextMonth(){var tbSelMonth = document.getElementById('tbSelMonth');var tbSelYear = document.getElementById('tbSelYear'); var iMon = tbSelMonth.value; var iYear = tbSelYear.value; if (++iMon>12) { iMon = 1; iYear++; } fSetYearMon(iYear, iMon);}function fToggleTags(){var select = document.getElementsByTagName("SELECT");var isIE4 = ((navigator.userAgent.indexOf('Win') != -1) && (navigator.userAgent.indexOf('MSIE') != -1) && (parseInt(navigator.appVersion) >= 4 ));if (isIE4){ for (i=0; i<select.length; i++) if ((select[i].Victor != 'Won') && fTagInBound(select[i])){ select[i].style.visibility = "hidden"; goSelectTag[goSelectTag.length] = select[i]; } with (document.all.tags("SELECT")){ for (i=0; i<length; i++) if ((item(i).Victor!="Won")&&fTagInBound(item(i))){ item(i).style.visibility = "hidden"; goSelectTag[goSelectTag.length] = item(i); } }}}function fTagInBound(aTag){var VicPopCal = document.getElementById('VicPopCal'); with (VicPopCal.style){ var l = parseInt(left); var t = parseInt(top); var r = l+parseInt(width); var b = t+parseInt(height); var ptLT = fGetXY(aTag); return !((ptLT.x>r)||(ptLT.x+aTag.offsetWidth<l)||(ptLT.y>b)||(ptLT.y+aTag.offsetHeight<t)); }}function fGetXY(aTag){ var oTmp = aTag; var pt = new Point(0,0); do { pt.x += oTmp.offsetLeft; pt.y += oTmp.offsetTop; oTmp = oTmp.offsetParent; } while(oTmp.tagName!="BODY"); return pt;}function fPopCalendar(popCtrl, dateCtrl,strDate){var VicPopCal = document.getElementById('VicPopCal'); if (popCtrl == previousObject){ if (VicPopCal.style.visibility == "visible"){ HiddenDiv(); return true; } } previousObject = popCtrl; gdCtrl = dateCtrl; fInitialDate(strDate); fSetYearMon(giYear, giMonth); var point = fGetXY(popCtrl); with (VicPopCal.style) { left = point.x; top = point.y+popCtrl.offsetHeight; width = VicPopCal.offsetWidth; width = 210; // height = VicPopCal.offsetHeight; fToggleTags(point); visibility = 'visible'; } //在firefox下面必须带上px,否则会有异常 VicPopCal.style.left = point.x + "px"; VicPopCal.style.top = point.y + popCtrl.offsetHeight + "px";}// Added by Han Chenfunction fInitialDate(strDate){ if( strDate == null || strDate.length != 10 ) return false; var sYear = strDate.substring(0,4); var sMonth = strDate.substring(5,7); var sDay = strDate.substring(8,10); if( sMonth.charAt(0) == '0' ) { sMonth = sMonth.substring(1,2); } if( sDay.charAt(0) == '0' ) { sDay = sDay.substring(1,2); } var nYear = parseInt(sYear ); var nMonth = parseInt(sMonth); var nDay = parseInt(sDay ); if ( isNaN(nYear ) ) return false; if ( isNaN(nMonth) ) return false; if ( isNaN(nDay ) ) return false; var arrMon = new Array(12); arrMon[ 0] = 31; arrMon[ 1] = nYear % 4 == 0 ? 29:28; arrMon[ 2] = 31; arrMon[ 3] = 30; arrMon[ 4] = 31; arrMon[ 5] = 30; arrMon[ 6] = 31; arrMon[ 7] = 31; arrMon[ 8] = 30; arrMon[ 9] = 31; arrMon[10] = 30; arrMon[11] = 31; if ( nYear < 1900 || nYear > 2050 ) return false; if ( nMonth < 1 || nMonth > 12 ) return false; if ( nDay < 1 || nDay > arrMon[nMonth - 1] ) return false; giYear = nYear; giMonth = nMonth; giDay = nDay; return true;}var gMonths = new Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");with (document) {write("<Div id='VicPopCal' style='POSITION:absolute;VISIBILITY:hidden;border:0px ridge;z-index:100;'>");write("<table border='0' bgcolor='#cccccc' style='FONT-SIZE: 12px;'>");write("<TR>");write("<td valign='middle' align='center'><input type='button' name='PrevMonth' value='<' style='height:20;width:20;FONT:bold' onClick='fPrevMonth()'>");write(" <SELECT name='tbSelYear' id='tbSelYear' onChange='fUpdateCal()' Victor='Won'>");for(i=1900;i<2050;i++) write("<OPTION value='"+i+"'>"+i+" </OPTION>");write("</SELECT>");write(" <select name='tbSelMonth' id='tbSelMonth' onChange='fUpdateCal()' Victor='Won'>");for (i=0; i<12; i++) write("<option value='"+(i+1)+"'>"+gMonths[i]+"</option>");write("</SELECT>");write(" <input type='button' name='PrevMonth' value='>' style='height:20;width:20;FONT:bold' onclick='fNextMonth()'>");write("</td>");write("</TR><TR>");write("<td align='center'>");write("<DIV style='background-color:teal'><table width='100%' border='0'>");fDrawCal(giYear, giMonth, 20, '12');write("</table></DIV>");write("</td>");write("</TR><TR><TD align='center'>");write("<TABLE width='100%' style='FONT-SIZE: 12px;'><TR><TD align='center'>");write("<B style='cursor:pointer' onclick='HiddenDiv()' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'>关闭</B>");write("</td><td algin='center' style='FONT-SIZE: 12px;'>");write("<B style='cursor:pointer' onclick='fSetDate(" + giYear + "," + giMonth + "," + giDay + ")' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'>今天是: "+giYear+"-"+giMonth+"-"+giDay+"</B>");write("</td></tr></table>");write("</TD></TR>");write("</TABLE></Div>");}</script><body></body></html>