Regular Expression That Tests A String To Find Out If Not Empty

Jun 25, 2010

Just a quick one here I want a regular expression that tests a string to find out if not empty. I am currently using /^[a-zA-Z0-9]+$/ which allows all alphanumeric characters, however unfortunately does not allow white space. As I am trying to use the RE for a form name input and I don't wish to separate first and last name, I want to allow users to enter their full name including spaces. Can anyone tell me an RE that allows all alphanumeric characters and white space in a string but does not allow an empty string

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Perform A Regular Expression On A String?

Sep 8, 2009

I would like to perform a regular expression on a string and if TRUE do something.

I have huge amounts of knowledge doing this in PHP but trying out javascript.

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Possible To Get Price From A String Using Regular Expression?

Aug 31, 2009

How can I get price from a string using regular expression ? Or by any other means .

Let's say. var str="Our shop receives only $. This shoe costs $200. We don't accept anything else then $"; ow could I retrieve '$200' from this above string. By any means.

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Regular Expression As String Argument?

Feb 24, 2006

I'm finishing my javascript form validator (only text fields for now) and here's one of the last things that's left.

I'm using class names of input elements as parameters for my validator. To find them i use Element.hasClassName(id, class) method from prototype library. I want to implement minlength parameter - so i grab a regexp tutorial and after a minute i had something like this minlength[[1-9][0-9]*], which finds minlength[1], minlength[666] and so on.

Great, but how to pass this as a paramter to hasClassName method, which requires string as a className?

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Regular Expression :: String Must Have [a-z] [0-9] In Any Order

Oct 30, 2002

My continuing problem with regular expressions! All I am trying to get is the expression must have at least 1 of these [a-z][0-9] in any order etc etc

RegExp(/[a-z][0-9]/)
didn't work

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Get Price From A String Using Regular Expression?

Sep 1, 2009

How can I get price from a string using regular expression? Or by any other means .

var str="Our shop receives only $. This shoe costs $200. We don't accept anything else then $";

How could I retrieve '$200' from this above string. By any means.

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JQuery :: Regular Expression To Find Html Tags Is Not Working Properly In Chrome

Jul 8, 2010

I Use the regular expression to find the html tags present in the input box, It works properly in IE & FF but in chrome it works fine when use first time for an input box but not again, below my code...

function IsWithinTags(inputString) {var regExp = /</?[^>]+(>|$)/g;
inputString = inputString.replace(/&(lt|gt);/g, function (strMatch, p1) {
return (p1 == "lt") ? "<" : ">";
});

[Code]....

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Regular Expression To Check A String Is Alphanumeric Only

Jul 23, 2005

I want to check if the user enters alphabet or numbers only in the
text box. If the user enters non-alphabet or non-numbers, I should pop
up a message and doesn't allow the user to do that. I am using regular
expression to do the checking. But it seems it always return false...

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Please Help With Regular Expression (string Must Be Letter Plus 5 Numbers)

Apr 21, 2006

I'm developing a web app and I want to validate a users input on a form. I need a regular expression to validate a string which must begin with a letter (i.e. A-Z or a-z) and must have 5 numbers (0-9) after it....

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JQuery :: Remove String Using Regular Expression?

Feb 10, 2010

I have function code...

I want to remove all parameters, but first. I don't know what's wrong .

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What Regular Expression Will Match ANY String That Has 10 Digits In It

Jan 13, 2009

What regular expression will match ANY string that has 10 digits in it?

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Regular Expression :: String Must Be 6 Characters Long And A-Z, A-z And 0-9

Apr 26, 2007

String must be minimum 6 charcters long and can only contain A-Z, a-z and 0-9 ....

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Global String Replacement (was Regular Expression)

Oct 12, 2011

I have just spent a while searching how to use regular expression to strip out spaces in a string and replace them with ',' I don't seem to be getting anywhere and was hoping someone could explain how to do it.

So for example:

Mystring = "a b c d"

My string would end up looking like the following

Mystring = "A','b','c','d"

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Regular Expression - Validate String With Alphanumeric

Oct 14, 2009

How can i validate string with alphanumeric, space, dash and dot in regular expression ?

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Match Entire String (regular Expression & Javascript)

Jul 23, 2005

I'm trying to perform a very simple validation of user input. I
want to verify that the user entered a six-digit string consisting
entirely of numbers. So anything from 000000 to 999999 is considered
valid. The problem that I'm having is getting the validation to work on
the entire string. In other words, 000000 is okay but 000000000000 is
also returning as a match. Here's a quick code block...I have something
along these lines....

/*********************/
<html>
<body>
<INPUT name="txtNumberField" type="text" id="txtNumberField">
<INPUT onClick="fnTestNumberField()" id=Button1 type=button value="Test
Number!" name=btnTest>
<script language=javascript>
function fnTestNumberField()
{
var sNumberValue = document.getElementById("txtNumberField").value;

if (sNumberValue.match(/A[0-9]{6}z/))
{
alert("match");
} else {
alert("no match");
}
}
</script>
</body>
</html>
/******************/

That is failing when I enter 123456 into the textbox. Why, though? I
know I can replace...

if (sNumberValue.match(/A[0-9]{6}z/))

....with something like...

if (sNumberValue.length == 6 && sNumberValue.match(/[0-9]{6}/))

....or I could assign a maxlength to the input box, of course. The thing
is, I really want to know WHY the regular expression isn't responding
as I'd expect. Is there a syntax error somewhere in the code?

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Query String Cleaning Using Regular Expression Matching

Oct 16, 2009

I have a search box. I need to remove all the special characters from the search term and then query it.-,?~!@#$%&*+-= all these characters.can anybody suggest a proper regular expression for this ? and the syntax for using it in javascript.my query is saved in var query;

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Regular Expression Checking String For Port Number?

Oct 28, 2010

I have got this xml file which has a background params which is <background>igmp:

{theme.background_video_ip}:1234</background>.

I have done the validation to check if the igmp protocol is used like this

if (clientSpecificData.background.substr(0, 7) == "igmp:") {

Right now I am trying to find out how I can use regular expressions to check whether a port number is used at the end.

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Regular Expression - Enter A String That Is 2 - 20 Characters Long And Only Has Letters Doesn't Work

Jun 28, 2010

I wanted to try creating a basic expression first. I want someone to enter a string that is 2 - 20 characters long and only has letters. This is what I use so far, and it doesn't work, nothing happens at all when I run it.

Code:
// Check for a valid name.
var namePattern = new RegExp("/^[a-zA-Z]{2,20}$/");
if (namePattern.test(name))
{
window.alert("Invalid");
}

name comes from a input box I display on screen. Also, I would like to update the expression so that there can be one space in the string, but it cannot be at the beginning or end. So this string is like a persons name. Bob is OK, Bob Smith is also OK. Edit: Actually, it is doing something but its always coming back invalid.

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?: In Regular Expression

Feb 21, 2006

I have seen lot of reg. expession with ?:
For dummy eg
(((XXX)ddd)ff)

The above expression is modified as
(?:(?:(XXX)ddd)ff)

Although both the above expr. gives same result. (RegExp.match() gives
same o/p), most of the places , i have seen second option.

Yes, but different matches r shown (using RegExp.exec())

Is the second expr. most efficient or in particular scenarios?

Any comments???

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Regular Expression Problems

Jun 28, 2006

At the moment my code is like:

function telValid(inString) {
var regexp = /^[0-9 +()]+$/;
return (inString.match(regexp,''));
}

which is use to validate phone numbers (UK at the moment)

this works ok, but wont allow - (Dashes) which i need..

tried doing:

function telValid(inString) {
var regexp = /^[0-9 +-()]+$/;
return (inString.match(regexp,''));
}

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Regular Expression Replace.

Jan 20, 2007

I am finding it difficult to find a regular expression for following situation(replace)

a b c d = a,b,c d
a b c = a,b c

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Regular Expression To Get The File Name From A URL?

Feb 5, 2009

regular express to get the file name from a URL?

It has to be flexible in that the extension can be either 4, 5, or 6 chars (.php, .html, .shtml for example) and needs to cater for and whether querystring parameters exist too.

So, both

[URL]

and

[URL]

The regex should return newthread for both.

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Get Innerhtm Value Using Regular Expression?

Nov 13, 2009

I.E.:

---------------------------
Windows Internet Explorer
---------------------------
<EMBED src=http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1& width=500 height=200 type=application/x-shockwave-flash allowfullscreen="true" allowscriptaccess="always"></EMBED>

how can i get "src" value in above code using regular expression?

<object width="500" height="200"><param name="movie" value="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/JTmM3jut05Q&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="200"></object>

how can i get "src" value in above code using regular expression?

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Regular Expression For Substring?

Jul 7, 2010

what will be the regular expression for this line:

Code JavaScript:
var id = $(this).attr("href").substring( $(this).attr("href").lastIndexOf('#'), $(this).attr("href").length);

Basically it gets the string after # in href attribute of clicked anchor tag.

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Regular Expression For A Date?

Aug 26, 2010

I have this expression:

/(19|20)dd/)[- /.](0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])

to detect if my date:

2010-12-15

is valid. It's not working. What do I have wrong?

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Explorer 5.01 Regular Expression Bug

Dec 30, 2004

When Internet Explorer 5.01 for Windows hits the regular expression:

/(?=<)|>/

it complains about an unexpected quantifier. In fact, it seems to complain whenever I use a lookahead expression. Is there any way around this?

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