JS验证

很久前写的了..贴来充个数...

JS文件..
/*
* @editor Fatzhan Liang 2008/10/06
* @version 1.0 copyleft
* function: A simple js validator
* but now this codes can only run in the IE5(or higher version),
* compatibility is not considered yet cause lack of knowledge
*/

// public variable
var alltovalidate = new Array();
// initial the form to be validated
function initialForm(formId){
var elements = document.getElementById(formId).elements;
var parent;
var theLabel;
for(var i = 0; i < elements.length; i++){
  if (elements[i].patternType == undefined) {
   continue;
  } else {
   alltovalidate.push(elements[i]);
   parent = elements[i].parentNode;
   theLabel = document.createElement("label");
   theLabel.style.visibility = "visible";
   theLabel.style.font = "13px Verdana";
   parent.appendChild(theLabel);
   if (elements[i].type=="checkbox") {
    var checkBoxes = document.getElementsByName(elements[i].name);
    for (var temp = 0; temp < checkBoxes.length; temp++) {
     checkBoxes.item(temp).attachEvent("onfocus", function(){showTip(checkBoxes.item(checkBoxes.length - 1));});
     checkBoxes.item(temp).attachEvent("onblur", function(){validateOne(checkBoxes.item(checkBoxes.length - 1));});
    }
   } else {
       elements[i].attachEvent("onfocus", showTip);
    elements[i].attachEvent("onblur", validateOne);
   }
  }
}
}
// show the tip when focus
function showTip(obj){
obj = (obj.name == undefined ? obj.srcElement : obj);
var parent = obj.parentNode;
var theLabel = parent.lastChild;
ValidateRules.chooseTip(obj);
theLabel.style.background = "url(validator_image.gif) no-repeat 1px -40px";
theLabel.innerHTML = "<font color='black'>    " + (obj.tip==undefined?ValidateRules.tip:obj.tip) + "</font>";
}
// validate one element
function validateOne(obj){
var isOk = false;
obj = (obj.name == undefined ? obj.srcElement : obj);
var parent = obj.parentNode;
var theLabel = parent.lastChild;
if (obj.value == ""){
  if(obj.require == "no"){
   theLabel.style.background = "url(validator_image.gif) no-repeat 1px -8px";
   theLabel.innerHTML = "<font color='blue'>    Empty is OK!</font>";
   isOk = true;
  } else {
   theLabel.style.background = "url(validator_image.gif) no-repeat 1px -104px";
   theLabel.innerHTML = "<font color='pink'>    " + ValidateRules.warning + "!</font>";
   isOk = false;
  }
} else if (ValidateRules.doValidate(obj)){
  theLabel.style.background = "url(validator_image.gif) no-repeat 1px -8px";
  theLabel.innerHTML = "<font color='blue'>    OK!</font>";
  isOk = true;
} else {
  theLabel.style.background = "url(validator_image.gif) no-repeat 1px -72px";
  theLabel.innerHTML = "<font color='red'>    " + (obj.error==undefined?ValidateRules.error:obj.error) + "!</font>";
  isOk = false;
}
return isOk;
}
// validate all elements in the form
function validateForm(formId){
var pass = true;
for(var i = 0; i < alltovalidate.length; i++){
  if(!validateOne(alltovalidate[i])) pass = false;
}
if(pass) document.getElementById(formId).submit();
}
// rules and relative functions
ValidateRules = {
tip: "please input",
error: "incorrect format",
warning: "cannot be empty",
require: /.+/,
email: /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,
mobile: /^((\(\d{2,3}\))|(\d{3}\-))?(13|15)\d{9}$/,
phone: /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}\-)?[1-9]\d{6,7}(\-\d{1,4})?$/,
postalcode: /^[1-9]\d{5}$/,
number: /^\d+$/,
integernum: /^[\-\+]?\d+$/,
doublenum: /^[\-\+]?[\d]+(\.[\d]+)?$/,
name: /^[\w\u4e00-\u9fa5\-]{1,20}$/,
username: /^\w{5,20}$/,
english: /^[A-Za-z]+$/,
chinese: /^[\u0391-\uFFE5]+$/,
varchar: /^[\w\W]{0,255}$/,
qq: /^[1-9]\d{4,9}$/,
url: /^(http:\/\/)?[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/,
unsafe: /^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^&\*\.\(\)\[\]\{\}<>\?\\\/\'\"]*)|.{0,5})$|\s/,
safestring: "this.isSafe(value)",
date: "this.isDate(value, getAttribute('format'))",
idcard: "this.isIdCard(value)",
filter: "this.doFilter(value, getAttribute('accept'))",
limit: "this.doLimit(value.length,getAttribute('min'),  getAttribute('max'))",
limitbyte: "this.doLimit(this.doLimitByte(value), getAttribute('min'), getAttribute('max'))",
repeat: "value == document.getElementById(getAttribute('match')).value",
range: "getAttribute('min') < (value|0) && (value|0) < getAttribute('max')",
compare: "this.doCompare(value,getAttribute('var'),getAttribute('type'))",
group: "this.doChecked(getAttribute('name'), getAttribute('min'), getAttribute('max'))",
select: "value != -1",
//selectMuti: "",
custom: "this.verifyCustom(getAttribute('pattern'), value)",
isSafe: function(input){
  return !this.unsafe.test(input);
},
isDate: function(input, format){
  switch(format){
   case "ymd":
    return /^(18|19|20|21)\d{2}-(0?\d|1[012])-(0?\d|[12]\d|3[01])$/.test(input);
    break;
   case "dmy":
    return /^(0?\d|[12]\d|3[01]),(0?\d|1[012]),(18|19|20|21)\d{2}$/.test(input);
    break;
   default:
    break;
  }
},
isIdCard: function(input){
  return true;
},
doFilter: function(input, acceptIn){
  return new RegExp("^.+\.(?=INS)(INS)$".replace(/INS/g, acceptIn.split(/\s*,\s*/).join("|")), "gi").test(input);
},
doLimit: function(size, min, max){
  min = min || 0;
  max = max || Number.MAX_VALUE;
  return min <= size && size <= max;
},
doLimitByte: function(input){
  return input.replace(/[^\x00-\xff]/g,"**").length;
},
doCompare: function(input, cmp, type){
  switch(type){
  case "lt": return (input < cmp);
  case "le": return (input <= cmp);
  case "eq": return (input == cmp);
  case "gt": return (input > cmp);
  case "ge": return (input >= cmp);
  case "ne": return (input != cmp);
  default: return true;
  }
},
doChecked: function(name, min, max){
  var checkBoxes = document.getElementsByName(name);
  var isChecked = 0;
  min = min || 1;
  max = max || checkBoxes.length;
  for(var i = 0; i < checkBoxes.length; i++) {
   if(checkBoxes[i].checked)
    isChecked++;
  }
  return isChecked >= min && isChecked <= max;
},
verifyCustom: function(input, pattern){
  return new RegExp(pattern,"gi").test(input);
},
chooseTip: function(obj){
  with(obj){
   var patternType = getAttribute("patternType");
   if(typeof(patternType) == "object" || typeof(this[patternType]) == "undefined") {
    return;
   }
   switch(patternType){
   case "email": this.tip = "email format like [e-mail]"; break;
   case "mobile": this.tip = "mobile like (xx-)xxxxxxxxxxx"; break;
   case "phone": this.tip = "separate the tele area num by '-'"; break;
   case "postalcode": this.tip ="input a postalcode"; break;
   case "number": this.tip = "input a correct number"; break;
   case "integernum": this.tip = "input a integer"; break;
   case "doublenum": this.tip = "input a double"; break;
   case "name": this.tip = "chinese,english,'-'or'_' less than 20"; break;
   case "username": this.tip = "english or number between 5 and 20"; break;
   case "chinese": this.tip = "input chinese"; break;
   case "varchar": this.tip = "less than 255 words"; break;
   case "qq": this.tip = "input a correct qq"; break;
   case "url": this.tip = "input a correct url"; break;
   case "date": getAttribute("format") == "ymd" ? this.tip = "date format 2000-01-01" : this.tip = "date format 01,01,2000"; break;
   case "safestring": this.tip = "larger than 5 words, do not use letter or number only"; break;
   case "idcard": this.tip = "input a correct idcard"; break;
   case "filter": this.tip = "only accept " + getAttribute("accept") + " format"; break;
   case "limit": this.tip = "lenght between " + getAttribute("min") + " and " + getAttribute("max"); break;
   case "limitbyte": this.tip = "only accept " + getAttribute("min") + " and " + getAttribute("max") + "bytes"; break;
   case "repeat": this.tip = "repeat the last input"; break;
   case "range": this.tip = "less than " + getAttribute("max") + " and greater than " + getAttribute("min"); break;
   case "compare": this.tip = getAttribute("type") + " value " + getAttribute("var"); break;
   case "group": this.tip = "must check " + getAttribute("min") + " to " + getAttribute("max"); break;
   case "select": this.tip = "must select a value"; break;
   default : break;
   }
  }
},
doValidate: function(obj){
  var success = false;
  with(obj){
   var patternType = getAttribute("patternType");
   if(typeof(patternType) == "object" || typeof(this[patternType]) == "undefined") {
    success = false;
   }
   switch(patternType){
   case "safestring":
   case "repeat":
   case "date":
   case "idcard":
   case "filter":
   case "limit":
   case "limitbyte":
   case "range":
   case "compare":
   case "group":
   case "select":
   case "custom":
    if(eval(this[patternType])) {
     success = true;
    }
    break;
   default:
    if(this[patternType].test(value)){
     success = true;
    }
    break;
   }
  }
  return success;
}
}
function addEvent(node, evType, fn) {
if(node.addEventListener){
  node.addEventListener(evType, fn, false);  
  return true;
} else if (node.attachEvent) {
  alert("node.attachevent");
  var r = node.attachEvent("on" + evType, fn);  
  return r;  
} else {
  alert(node["on" + evType]);
  node["on" + evType] = fn;  
}  
}

=====================================

Html文件测试:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>Untitled1</title>

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="this is my page">
    <meta http-equiv="content-type" content="text/html; charset=GB18030">
    
    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<script type="text/javascript" src="MyValidator.js"></script>
  </head>
  
  <body onload="initialForm('testform');">
    This is my HTML page. <br>
    <form id="testform" action="comeon.html">
    <table style="font: 14px Verdana">
    <tr>
  <th>username:</th>
  <td><input name="input1" type="text" patternType="username"></td>
</tr>
<tr>
  <th>password:</th>
  <td><input id="password" name="input1" type="password" patternType="safestring"></td>
</tr>
<tr>
  <th>repeat psw:</th>
  <td><input name="input1" type="password" patternType="repeat" match="password"></td>
</tr>
    <tr>
  <th>your name:</th>
  <td><input name="input1" type="text" patternType="name"></td>
</tr>
<tr>
  <th>sex:</th>
  <td><select name="select" patternType="select">
       <option value="-1">your sex:</option>
       <option value="0">GG</option>
       <option value="1">MM</option>
       <option value="1">MG</option>
      </select></td>
    </tr>
    <tr>
  <th>age:</th>
  <td><input type="text" patternType="range" min="18" max="100" tip="age should between 18 and 100" error="you are too old or too young"/></td>
    </tr>
    <tr>
  <th>birthday:</th>
  <td><input name="input1" type="text" patternType="date" format="ymd" error="custom error1"/></td>
</tr>
<tr>
  <th>idcard:</th>
  <td><input name="input1" type="text" patternType="idcard"/>(未实现)</td>
</tr>
<tr>
  <th>qq:</th>
  <td><input name="input1" type="text" patternType="qq"/></td>
</tr>
    <tr>
  <th>email:</th>
  <td><input name="input2" type="text" patternType="email"></td>
</tr>
    <tr>
  <th>favorite:</th>
  <td><input type="checkbox" name="shit"/>jump <input type="checkbox" name="shit"/>fly <input type="checkbox" name="shit" validate="true" patternType="group" min="0" max="2"/>sleep</td>
</tr>
    <tr>
  <th>your head:</th>
  <td><input name="input5" type="file" patternType="filter" accept="jpg,jpeg,png,gif"/></td>
</tr>
    <tr>
  <th>telephone:</th>
  <td><input name="input3" patternType="phone" require="no"></td>
</tr>
<tr>
  <th>moblie:</th>
  <td><input name="input3" patternType="mobile"></td>
</tr>
<tr>
  <th>postalcode:</th>
  <td><input patternType="postalcode"/></td>
</tr>
<tr>
  <th>your website:</th>
  <td><input name="input3" patternType="url"></td>
</tr>
    <tr>
  <th>self intro:</th>
  <td><textarea name="input4" cols="30" rows="5" patternType="limit" min="20" max="255"></textarea></td>
</tr>
<tr>
  <th>test userdefined:</th>
  <td><input name="input3" patternType="custom" pattern="I am a pig" tip="please input 'I am a pig'" error="you're not a pig"></td>
</tr>
<tr>
  <td colspan="2" align="left"><input type="button" value="submit" onclick="validateForm('testform')"/>
    <input type="reset" value="reset"/></td>
</tr>
    </table>
    </form>
  </body>
</html>

评论

1 楼 canca 2009-07-14  

caChecker更出色：
http://www.antsws.com/archives/82/