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网页输入框日期型有效性判定一网打尽
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广告招租，e-mail:yesize@hotmail.com 我利用正则表达式写的日期型网页输入框数据是否有效的判定函数。 包含闰年的处理，有兴趣正则表达式的同行，以及需要对网页中日期进行 很好判定的朋友可以参照一下。同时函数支持自我日期输入形式定义。 1#辅助函数（闰年判定） function isLeapYear(year) { if((year%4==0&&year%100!=0)||(year%400==0)) { return true; } return false; } 2#判定主函数 function dateValidation(object,format) { var regexp,value,index; var year,month,day; var iyear,imonth,iday; var fmt,regfmt,ordfmt; var dateArray; if(isObject(object)) { value=object.value; } else if(isString(object)&&!isEmpty(object)) { value=object; } else { return false; } if(isEmpty(format)) { return false; } fmt=new Array(yyyy/mm/dd,mm/dd/yyyy,dd/mm/yyyy); regfmt=new Array(/^([0-9]{4})\\/([0-9]{2})\\/([0-9]{2})$/,/^([0-9]{2})\\/([0-9]{2})\\/([0-9]{4})$/,/^([0-9]{2})\\/([0-9]{2})\\/([0-9]{4})$/); ordfmt=new Array(123,312,321); format=format.toLowerCase(); for(index=0;index<fmt.length;index++) { if(format==fmt[index]) { eval(regexp=+regfmt[index]+;); iyear=parseInt(ordfmt[index].charAt(0)); imonth=parseInt(ordfmt[index].charAt(1)); iday=parseInt(ordfmt[index].charAt(2)); break; } } if(index==fmt.length) { alert(Date Format Not Supported!); return false; } if(regexp.test(value)){ //alert(Date is matched with Format!); dateArray=value.match(regexp); year=dateArray[iyear]; month=dateArray[imonth]; day=dateArray[iday]; //alert(The Date you have filled is:\nYear:+year+\nMonth:+month+\nDay:+day); if(year<2001) { alert(Year must be greater than 2001!); return false; } if(month<0||month>12) { alert(Month must range from 1 to 12!); return false; } if(day<0||day>31) { alert(Day must range from 1 to 31!); return false; } else { if(month==2) { if(isLeapYear(year)&&day>29) { alert(In Month 2,Day must range from 1 to 29!); return false; } if(!isLeapYear(year)&&day>28) { alert(In Month 2,Day must range from 1 to 28!); return false; } } if((month==4||month==6||month==9||month==11)&&(day>30)) { alert(In this Month ,Day must range from 1 to 30!); return false; } } } else { alert(Date isnt matched with Format!\nDate Format:+format); return false; } return true; }
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