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The following is the source code of the jQuery Plugin.
<script type="text/javascript">
// version 1.02
// fix the problem when precision has been set and the input start with decimal dot or comma ,e.g. precision set to 3 and input with ".1234"
var email={tldn:new RegExp("^[^\@]+\@[^\@]+\.(A[C-GL-OQ-UWXZ]|B[ABD-JM-OR-TVWYZ]|C[ACDF-IK-ORUVX-Z]|D[EJKMOZ]|E[CEGR-U]|F[I-KMOR]|G[ABD-IL-NP-UWY]|H[KMNRTU]|I[DEL-OQ-T]|J[EMOP]|K[EG-IMNPRWYZ]|L[A-CIKR-VY]|M[AC-EGHK-Z]|N[ACE-GILOPRUZ]|OM|P[AE-HKL-NR-TWY]|QA|R[EOSUW]|S[A-EG-ORT-VYZ]|T[CDF-HJ-PRTVWZ]|U[AGKMSYZ]|V[ACEGINU]|W[FS]|XN|Y[ETU]|Z[AMW]|AERO|ARPA|ASIA|BIZ|CAT|COM|COOP|EDU|GOV|INFO|INT|JOBS|MIL|MOBI|MUSEUM|NAME|NET|ORG|PRO|TEL|TRAVEL)$","i")};
(function($){
$.extend($.expr[":"],{
regex:function(d,a,c){
var e=new RegExp(c[3],"g");
var b=("text"===d.type)?d.value:d.innerHTML;
return(b=="")?true:(e.exec(b))
}
});
$.fn.output=function(d){
return(this.is(":text"))?this.val(d):this.html(d)
};
formatter={
getRegex:function(settings){
var settings=$.extend({type:"decimal",precision:5,decimal:'.',allow_negative:true},settings);
var result="";
if(settings.type=="decimal"){
var e=(settings.allow_negative)?"-?":"";
if(settings.precision>0)
result="^"+e+"\\d+$|^"+e+"\\d*"+settings.decimal+"\\d{1,"+settings.precision+"}$";
else result="^"+e+"\\d+$"
}else if(settings.type=="phone-number"){
result="^\\d[\\d\\-]*\\d$"
}else if(settings.type=="alphabet"){
result="^[A-Za-z]+$"
}
return result
},
isEmail:function(d){
var a=$(d).output();
var c=false;
var e=true;
var e=new RegExp("[\s\~\!\#\$\%\^\&\*\+\=\(\)\[\]\{\}\<\>\\\/\;\:\,\?\|]+");
if(a.match(e)!=null){
return c
}
if(a.match(/((\.\.)|(\.\-)|(\.\@)|(\-\.)|(\-\-)|(\-\@)|(\@\.)|(\@\-)|(\@\@))+/)!=null){
return c
}
if(a.indexOf("\'")!=-1){
return c
}
if(a.indexOf("\"")!=-1){
return c
}
if(email.tldn&&a.match(email.tldn)==null){
return c
}
return e
},
formatString:function(target,settings){
var settings=$.extend({type:"decimal",precision:5,decimal:'.',allow_negative:true},settings);
var oldText=$(target).output();
var newText=oldText;
if(settings.type=="decimal"){
if(newText!=""){
var g;
var h=(settings.allow_negative)?"\\-":"";
var i="\\"+settings.decimal;
g=new RegExp("[^\\d"+h+i+"]+","g");
newText=newText.replace(g,"");
var h=(settings.allow_negative)?"\\-?":"";
if(settings.precision>0)
g=new RegExp("^("+h+"\\d*"+i+"\\d{1,"+settings.precision+"}).*");
else g=new RegExp("^("+h+"\\d+).*");
newText=newText.replace(g,"$1")
}
}else if(settings.type=="phone-number"){
newText=newText.replace(/[^\-\d]+/g,"").replace(/^\-+/,"").replace(/\-+/,"-")
}else if(settings.type=="alphabet"){
newText=newText.replace(/[^A-Za-z]+/g,"")
}
if(newText!=oldText)
$(target).output(newText)
}
};
$.fn.format=function(settings,wrongFormatHandler){
var settings=$.extend({type:"decimal",precision:5,decimal:".",allow_negative:true,autofix:false},settings);
var decimal=settings.decimal;
wrongFormatHandler=typeof wrongFormatHandler=="function"?wrongFormatHandler:function(){};
this.keypress(function(d){
$(this).data("old-value",$(this).val());
var a=d.charCode?d.charCode:d.keyCode?d.keyCode:0;
if(a==13&&this.nodeName.toLowerCase()!="input"){return false}
if((d.ctrlKey&&(a==97||a==65||a==120||a==88||a==99||a==67||a==122||a==90||a==118||a==86||a==45))||(a==46&&d.which!=null&&d.which==0))
return true;
if(a<48||a>57){
if(settings.type=="decimal"){
if(settings.allow_negative&&a==45&&this.value.length==0)return true;
if(a==decimal.charCodeAt(0)){
if(settings.precision>0&&this.value.indexOf(decimal)==-1)return true;
else return false
}
if(a!=8&&a!=9&&a!=13&&a!=35&&a!=36&&a!=37&&a!=39){return false}
return true
}else if(settings.type=="email"){
if(a==8||a==9||a==13||(a>34&&a<38)||a==39||a==45||a==46||(a>64&&a<91)||(a>96&&a<123)||a==95){return true}
if(a==64&&this.value.indexOf("@")==-1)return true;
return false
}else if(settings.type=="phone-number"){
if(a==45&&this.value.length==0)return false;
if(a==8||a==9||a==13||(a>34&&a<38)||a==39||a==45){return true}
return false
}else if(settings.type=="alphabet"){
if(a==8||a==9||a==13||(a>34&&a<38)||a==39||(a>64&&a<91)||(a>96&&a<123))
return true
}else return false
}else{
if(settings.type=="alphabet"){
return false
}else return true
}
})
.blur(function(){
if(settings.type=="email"){
if(!formatter.isEmail(this)){
wrongFormatHandler.apply(this)
}
}else{
if(!$(this).is(":regex("+formatter.getRegex(settings)+")")){
wrongFormatHandler.apply(this)
}
}
})
.focus(function(){
$(this).select()
});
if(settings.autofix){
this.keyup(function(d){
if($(this).data("old-value")!=$(this).val())
formatter.formatString(this,settings)
}
)
}
return this
}
})(jQuery);
</script>
You can download the plugin from the latest versions in the following links:
All the plugin source codes and the examples are copyright of C. F., Wong
Please feel free to use any code listed in this page, they are licensed under the MIT License:
http://www.opensource.org/licenses/mit-license.php