JS 正则表达式验证代码大全

...火狐狸```

<script>
   /*************************************************
*************************************************/
Validator = {
Require : /.+/,
Email : /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,
Phone : /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/,
Mobile : /^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$/,
Url : /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/,
IdCard : /^\d{15}(\d{2}[A-Za-z0-9])?$/,
Currency : /^\d+(\.\d+)?$/,
Number : /^\d+$/,
Zip : /^[1-9]\d{5}$/,
QQ : /^[1-9]\d{4,8}$/,
Integer : /^[-\+]?\d+$/,
Double : /^[-\+]?\d+(\.\d+)?$/,
English : /^[A-Za-z]+$/,
Chinese :   /^[\u0391-\uFFE5]+$/,
Username : /^[a-z]\w{3,}$/i,
UnSafe : /^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^&\*\.\(\)\[\]\{\}<>\?\\\/\'\"]*)|.{0,5})$|\s/,
IsSafe : function(str){return !this.UnSafe.test(str);},
SafeString : "this.IsSafe(value)",
Filter : "this.DoFilter(value, getAttribute('accept'))",
Limit : "this.limit(value.length,getAttribute('min'),   getAttribute('max'))",
LimitB : "this.limit(this.LenB(value), getAttribute('min'), getAttribute('max'))",
Date : "this.IsDate(value, getAttribute('min'), getAttribute('format'))",
Repeat : "value == document.getElementsByName(getAttribute('to'))[0].value",
Range : "getAttribute('min') < (value|0) && (value|0) < getAttribute('max')",
Compare : "this.compare(value,getAttribute('operator'),getAttribute('to'))",
Custom : "this.Exec(value, getAttribute('regexp'))",
Group : "this.MustChecked(getAttribute('name'), getAttribute('min'), getAttribute('max'))",
ErrorItem : [document.forms[0]],
ErrorMessage : ["以下原因导致提交失败：\t\t\t\t"],
Validate : function(theForm, mode){
   var obj = theForm || event.srcElement;
   var count = obj.elements.length;
   this.ErrorMessage.length = 1;
   this.ErrorItem.length = 1;
   this.ErrorItem[0] = obj;
   for(var i=0;i<count;i++){
    with(obj.elements[i]){
     var _dataType = getAttribute("dataType");
     if(typeof(_dataType) == "object" || typeof(this[_dataType]) == "undefined")   continue;
     this.ClearState(obj.elements[i]);
     if(getAttribute("require") == "false" && value == "") continue;
     switch(_dataType){
      case "Date" :
      case "Repeat" :
      case "Range" :
      case "Compare" :
      case "Custom" :
      case "Group" :
      case "Limit" :
      case "LimitB" :
      case "SafeString" :
      case "Filter" :
       if(!eval(this[_dataType])) {
        this.AddError(i, getAttribute("msg"));
       }
       break;
      default :
       if(!this[_dataType].test(value)){
        this.AddError(i, getAttribute("msg"));
       }
       break;
     }
    }
   }
   if(this.ErrorMessage.length > 1){
    mode = mode || 1;
    var errCount = this.ErrorItem.length;
    switch(mode){
    case 2 :
     for(var i=1;i<errCount;i++)
      this.ErrorItem[i].style.color = "red";
    case 1 :
     alert(this.ErrorMessage.join("\n"));
     this.ErrorItem[1].focus();
     break;
    case 3 :
     for(var i=1;i<errCount;i++){
     try{
      var span = document.createElement("SPAN");
      span.id = "__ErrorMessagePanel";
      span.style.color = "red";
      this.ErrorItem[i].parentNode.appendChild(span);
      span.innerHTML = this.ErrorMessage[i].replace(/\d+:/,"*");
      }
      catch(e){alert(e.description);}
     }
     this.ErrorItem[1].focus();
     break;
    default :
     alert(this.ErrorMessage.join("\n"));
     break;
    }
    return false;
   }
   return true;
},
limit : function(len,min, max){
   min = min || 0;
   max = max || Number.MAX_VALUE;
   return min <= len && len <= max;
},
LenB : function(str){
   return str.replace(/[^\x00-\xff]/g,"**").length;
},
ClearState : function(elem){
   with(elem){
    if(style.color == "red")
     style.color = "";
    var lastNode = parentNode.childNodes[parentNode.childNodes.length-1];
    if(lastNode.id == "__ErrorMessagePanel")
     parentNode.removeChild(lastNode);
   }
},
AddError : function(index, str){
   this.ErrorItem[this.ErrorItem.length] = this.ErrorItem[0].elements[index];
   this.ErrorMessage[this.ErrorMessage.length] = this.ErrorMessage.length + ":" + str;
},
Exec : function(op, reg){
   return new RegExp(reg,"g").test(op);
},
compare : function(op1,operator,op2){
   switch (operator) {
    case "NotEqual":
     return (op1 != op2);
    case "GreaterThan":
     return (op1 > op2);
    case "GreaterThanEqual":
     return (op1 >= op2);
    case "LessThan":
     return (op1 < op2);
    case "LessThanEqual":
     return (op1 <= op2);
    default:
     return (op1 == op2);            
   }
},
MustChecked : function(name, min, max){
   var groups = document.getElementsByName(name);
   var hasChecked = 0;
   min = min || 1;
   max = max || groups.length;
   for(var i=groups.length-1;i>=0;i--)
    if(groups[i].checked) hasChecked++;
   return min <= hasChecked && hasChecked <= max;
},
DoFilter : function(input, filter){
return new RegExp("^.+\.(?=EXT)(EXT)$".replace(/EXT/g, filter.split(/\s*,\s*/).join("|")), "gi").test(input);
},
IsDate : function(op, formatString){
   formatString = formatString || "ymd";
   var m, year, month, day;
   switch(formatString){
    case "ymd" :
     m = op.match(new RegExp("^((\\d{4})|(\\d{2}))([-./])(\\d{1,2})\\4(\\d{1,2})$"));
     if(m == null ) return false;
     day = m[6];
     month = m[5]*1;
     year =   (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3], 10));
     break;
    case "dmy" :
     m = op.match(new RegExp("^(\\d{1,2})([-./])(\\d{1,2})\\2((\\d{4})|(\\d{2}))$"));
     if(m == null ) return false;
     day = m[1];
     month = m[3]*1;
     year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10));
     break;
    default :
     break;
   }
   if(!parseInt(month)) return false;
   month = month==0 ?12:month;
   var date = new Date(year, month-1, day);
         return (typeof(date) == "object" && year == date.getFullYear() && month == (date.getMonth()+1) && day == date.getDate());
   function GetFullYear(y){return ((y<30 ? "20" : "19") + y)|0;}
}
}
</script>
javascript验证表单时常用

"^-[0-9]*[1-9][0-9]*$"　　//负整数

"^-?\d+$"　　　　//整数

"^\d+(\.\d+)?$"　　//非负浮点数（正浮点数 + 0）

"^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$"　　//正浮点数

"^((-\d+(\.\d+)?)|(0+(\.0+)?))$"　　//非正浮点数（负浮点数 + 0）

"^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$"　　//负浮点数

"^(-?\d+)(\.\d+)?$"　　//浮点数

"^[A-Za-z]+$"　　//由26个英文字母组成的字符串

"^[A-Z]+$"　　//由26个英文字母的大写组成的字符串

"^[a-z]+$"　　//由26个英文字母的小写组成的字符串

"^[A-Za-z0-9]+$"　　//由数字和26个英文字母组成的字符串

"^\w+$"　　//由数字、26个英文字母或者下划线组成的字符串

"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$"　　　　//email地址

"^[a-zA-z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\S*)?$"　　//url