JavaScript - Regex: Match And Replace

eg: there is a url as this: http://example.com

i want to make a match that the second part in the url are beginning of test. eg: Code:

http://example.com/test/...

thank you.

Hi,

I am using the following code to generate a temporary window:

In the js:

Code:

var win=null;
function NewWindow(mypage,myname,scroll){
settings='width=850,height=500,top=200,left=50,scrollbars=yes,location=yes,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';
win=window.open(mypage,myname,settings);
if(win.focus){win.focus();}}

function hidestatus(){
window.status=''
return true
}

And in the HTML:

Code:

<a href=\"http://www.support-focus.com/check.php?key=$sup_cd2\" 
onclick=\"NewWindow(this.href,'','yes','default'); 
return false\" onfocus=\"this.blur()\" >

This code works , but I don't understand the mis-match or parameters

This is passing four param:
onclick=\"NewWindow(this.href,'','yes','default');

But this is only receiving three:
NewWindow(mypage,myname,scroll)

Is the last one (default) not counted for some reason ?


The was able to move the scroll param (yes) out

With this:
onclick=\"NewWindow(this.href,'','default');

and

NewWindow(mypage,myname)

Which now leaves just two params and a default.

Does anyone know why this appears to be unbalanced and also what the
myname param does? ( do I need it ? can I get rid of the '' and the myname ? )

Thanks

;(function($){
$.fn.superfish = function(op){

In the above code snippet:
Firstly I find it odd the the line begins with a ';'. Is there a meaning to this?
Secondly, what is the meaning of the '$' in this context and why does it appear that there is a parenthesis missing?
I am good with C# and now I am learning JavaScript

Thanks for the help out,
joecamel

hey guys i have the following test html that i want to grab information out of in paticular .match(/\s(\d{1,2}\%)<\/td>/)[1]; now this works for the first % which returns 4%

on this line <td style="color: white;">&nbsp;(4%)</td>

but then i have the same matches again
Code:

CL = temp.match(/\s(\d{1,2}\%)<\/td>/)[1]; 
alert("CL = " + CL); //returns 4%

Neo = temp.match(/\s(\d{1,2}\%)<\/td>/)[2]; 
alert("Neo = " + Neo);//returns undefined and should return 2%

Oak = temp.match(/\s(\d{1,2}\%)<\/td>/)[3]; 
alert("Oak = " + Oak); //returns undefined and should return 14%

Queen = temp.match(/\s(\d{1,2}\%)<\/td>/)[4]; 
alert("Queen = " + Queen); // returns undefined and should return 27%

here is a link to the temp variable because it would get messy here
http://pastebin.com/XFyiQ26K

Why do I get both the greedy and non-greedy? How do I extract "somestring" only? I'm on IE7.

thanks

Code:

<script type="text/javascript">
var x = "(EVAL)(H:somestring)Some other Text here";
var full =(x.match(/\(H\:(.*?)\)/g)); // produces "(H:somestring)" as expected	
alert(full);
var inside = (x.match(/\(H\:(.*)\)/)); // produces "(H:somestring),somestring" .. I only 

want "somestring"
alert(inside);
</script>

I still working on this script for sorting fields in a wiki and have ran into another feature I'm trying to get working.

Right now I have a long list that needs to be sorted and it looks like this:

[[wiki:softwa softwarename|Display Text]]
[[wiki:somethingelse:alphaname|Alpha Text]]
[[wiki:whoops:etchers|Elephants]]

The first part of my code is an attempt to match those with a regular expression:

Code:

         else if (text.match(/\[\[(.*):(.*)\]\]/)) {  
         return sorttable.sort_link;
        }

The second part is the actual sorting:
Code:

sort_link: function(a,b) {
	aa = a[0].split(":",4);
	bb = b[0].split(":",4);
	
    if (aa[3]==bb[3]) {return 0;}
    if (aa[3]<bb[3]) {return -1;}
    return 1;
  },

I'm pretty sure the regular expression works... at least it works on some regular expression "testings" websites. But I just cant get these links to sort. I am trying to wort by the Display text which is located after the '|' in the text.

Hi, I have the following code:
Code:

var str = "/dev/filler/test0/"; 
var patt = new RegExp("/ test0 /$");
var result = patt.exec(str);
document.write(result);

which returns: /test0/

in the var patt line I would like to replace the hardcoded test0 string with an expression that matches any characters between the two forward slashes. I have tried with little success.

I am trying to do a pattern match and check something in a condition but cant get it to work.
The first value changes and I need to check and do something if I get a hit on it.

Code:

var mydata = "?first=one&second=two&third=three";

if (mydata.indexOf("first") == "something")
{
      alert("No Hit");
}
else
{
      alert("Hit");
}

Basically I am trying to find out if first is equal to one in the mydata string.
Please advise because my above attempt is not working.

Should alert '' twice , instead alerts original text
Code:

      text = 'p18=100';
      text = text.replace("(^|&)p100=18.*?(&|$)","")
      alert(text);
      text = text.replace(/(^|&)p100=18.*?(&|$)/g,"")
      alert(text);

tested regex on online tester and it should be OK.

?

Hi,

I'm using this site Translator Editor - LingoJam
I'm trying to use the regex portion of the site (click regex on the page that link goes to) to create a substitution cipher - a translates to o, etc.

so far I have

Code:

/a/g -> o
/o/g -> u

Theoretically, that'd mean when I typed in "a", it would translate to "o", and when I typed in "o", it would translate to "u".
Trouble is, it doesn't know when to stop. I type in "a" and it immediately returns "u", because it substitutes the "o" that it should end up as for the "u".

Any help on this matter would be appreciated.

Thank you.





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12-29-2014, 08:34 AM #2
Philip M View Profile View Forum Posts

Supreme Master coder! Join Date Jun 2002 Location London, England Posts 18,371 Thanks 204 Thanked 2,573 Times in 2,551 Posts

That is bound to occur if you use onkeyup to translate the letter immediately it is typed. You should create the cyphered text once the whole message is complete.

All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit.

I am creating a userscript and trying to take the following:

Arian Foster (Hou - RB)

and end up just with the team name:

Hou

You can't remove by index (which I would be able to do), because it might be K instead of RB or NO instead of Hou. I am assuming that you use Regex and the replace function to do so, but I am struggling with understanding all Regex symbols. Can someone help me with this and explain it briefly? I would appreciate it.

I have this code so far;

PHP Code:
        validatePhone : function(field, caption) {
            phoneNumber = /^[0-9]{11}$/;
            if(phoneNumber.test(field.val())) {
                return true;
            }
            return i18n('phone', caption);
        }, 


It works fine for entering an 11 digit number. However, I want to check that the number starts with either 077, 075, 079 or 078. Also, if the field is empty then it can also be accepted. How would I do this? Thanks

Hi,

I found this regular expression on the internet and it works fine when I test it in various validators on the web.

Code:

^(((0?[1-9]|1[012])/(0?[1-9]|1\d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]\d)\d{2}|0?2/29/((19|[2-9]\d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$

It's purpose is to validate dates entered as mm/dd/yyyy, m/dd/yyyy, mm/d/yyyy or m/d/yyyy.

When I try it with the code below it always returns null.
Code:

function isValidDate(/* String */ p1_date) {
	var x = "^(((0?[1-9]|1[012])/(0?[1-9]|1\d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]\d)\d{2}|0?2/29/((19|[2-9]\d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$";
	var re = new RegExp(x);
	var myValid = p1_date.match(re);
	alert("p1_date: " + p1_date
	 + "\nmyValid: " + myValid);
	return myValid;
}

Suggestions?

Hello All,

Below is my code, I am needing to get to where the label name will match the behavior that my field currently does. If nothing is entered the field is changed to a red background. If it is focused it goes back to white. I am needing the font color of the label to match color of the field and match the same behavior.

Code:

<!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>Lab06 - Form Validation</title>
<script type="text/javascript" charset="utf-8">



	function passcheck(){
		var pw1 = document.forms[ 0 ].password.value;
		var pw2 = document.forms[ 0 ].passcomf.value;
		
		if ( pw1 != pw2 ) {
			alert ("You did not enter the same new password twice. Please re-enter your password.");
			return false;
		}else{
			return true;
		}
	}


	function validate( ) {
		var errors = new Array( );
		
		for( var i = 0; i < document.forms[ 0 ].elements.length ; i++ ){
			
			if( document.forms[ 0 ].elements[ i ].type == "text" ) {
				if( document.forms[ 0 ].elements[ i ].value == "" ){
					errors.push( "The " + document.forms[ 0 ].elements[ i ].name + " field cannot be blank.\n");
					
					document.forms[ 0 ].elements[ i ].className = "in_error";
					
					
					
				}
				
			
			}
		
			if( document.forms[ 0 ].elements[ i ].type == "select-one") {
				if(document.forms[ 0 ].elements[ i ].selectedIndex == 0 ) {
					errors.push( "The " + document.forms[ 0 ].elements[ i ].name + ' was not "Yes, I agree!", you must agree to the "User Agreement."\n');
						
					document.forms[ 0 ].elements[ i ].className = "in_error";
				}
		 }
		 
		 	if( document.forms[ 0 ].elements[ i ].type == "select-one") {
				if(document.forms[ 0 ].elements[ i ].selectedIndex == 2 ) {
					errors.push( "The " + document.forms[ 0 ].elements[ i ].name + ' was not "Yes, I agree!", you must agree to the "User Agreement."\n');
						
					document.forms[ 0 ].elements[ i ].className = "in_error";
				}
		 }
		 

			




	}
		if( errors.length == 0 ) {
			return true;
		} else {
			clear_errors( );
			show_errors( errors );
			
			return false;
		}
		

	}
	

	
	function clear_errors( ){
		var div = document.getElementById( "errors" );
		while( div.hasChildNodes( ) ){
			div.removeChild( div.firstChild );
		}
	}
	
	function show_errors ( errors ) {
		var div = document.getElementById( "errors" );
		for( var i = 0; i < errors.length; i++ ){
			var error = document.createTextNode( errors[ i ] );
			var p = document.createElement( "p" );
			p.appendChild( error );
			div.appendChild( p );
		}
	}
	

	window.onload = function( ) {
		document.forms[ 0 ].onsubmit = validate;
		
	}



</script>


<style type="text/css" media="screen">
	#errors {
		color: #F00;
	}
	.in_error {
		background-color: #F00;
	}
	input:focus {
		background-color: #FFF;
	}
	select:focus {
		background-color: #FFF;
	}
</style>

</head>

<body>

	<h1>Form Validation</h1>
    
    <div id="errors"></div>
    
    <form action="" method="post" onsubmit="return passcheck()">
    	 <p>
        	<label for="firstname" id="labelfirstname">First name:</label>
            <input type="text" name="First name" value="" id="firstname" />
        </p>
         <p>
        	<label for="lastname" id="labellastname">Last name:</label>
            <input type="text" name="Last name" value="" id="lastname"/>
        </p>
         <p>
        	<label for="middlei" id="labelmiddlei">Middle initial:</label>
            <input type="text" name="Middle initial" value="" id="middlei"/>
        </p>
         <p>
        	<label for="address" id="labeladdress">Street address:</label>
            <input type="text" name="Street address" value="" id="address"/>
        </p>
         <p>
        	<label for="city" id="labelcity">City:</label>
            <input type="text" name="City" value="" id="city"/>
        </p>
         <p>
        	<label for="State" id="labelstate">State:</label>
            <input type="text" name="State" value="" id="state"/>
        </p>
         <p>
        	<label for="zipcode" id="idzipcode">Zipcode:</label>
            <input type="text" name="Zipcode" value="" id="zipcode"/>
        </p>
         <p>
        	<label for="username" id="labelusername">Username:</label>
            <input type="text" name="Username" value="" id="username"/>
        </p>
         <p>
        	<label for="password" id="labelpassword">Password:</label>
            <input type="text" name="Password" value="" id="password"/>
        </p>
         <p>
        	<label for="passcomf" id="labelpasscomf">Password comfirmation:</label>
            <input type="text" name="Password comfirmation" value="" id="passcomf"/>
        </p>
         <p>
        	<label for="agreement" id="labelagreement">User Agreement</label>
            <select name="User Agreement" id="agreement">
            	<option></option>
                <option>Yes, I agree!</option>
                <option>No, I do not agree!</option>
                </select>
        </p>
		<p><input type="submit" value="Register &rarr;" onclick="return passcheck(); return true;"/></p>
        </form>
</body>
</html>

Hey everyone, I'm working on a script, but I've been stopped by an error code from regex's match function. Firefox is giving me a "text.match is not a function". My assumption is that it may be the getSelection that is causing the error. Any clarification would be much appreciated!
Code:

function captureText(){
	var txt = "";
	if(window.getSelection){
		var text = window.getSelection();
	}
	else if(document.selection){
		var text = document.selection.createRange().text;
	}
	else {
		return;
	}
	if(text != ""){
		var reg = /^[A-Z](.*?)+(\.)$/g;
		var check = text.match(reg);
		alert(check);
		alert("You selected: "+text);
		if(window.getSelection){
			window.getSelection().removeAllRanges();
		}
		else if(document.selection){
			text.blur();
			document.selection.empty();
		}
		else {
			return;
		}
	}
}
document.onmouseup = captureText;

Thanks.