JavaScript - Reg Expression Help Please

Dear experts

I have following codes

Var re=/(\d){4}-(\d){7}/;

When I test this string
0300-685706263

It says TRUE

But I validate this string exactly

0300-6857062

Please help

Hi:

I think this is where I need to ask this. I am doing a PHP/mod_rewrite and I need to tweak one of the RegEx's used in it but I don't know the syntax.

I have this bit of code:
Code:

<a href="http://www.mywebsite.com/Promotional.Products-Promotional.Items/Promotional-Products/<?php echo $product_id ?>-<?php echo str_replace(" ", "-", $myTitle) ?>-<?php echo $full_state ?>-Promotional-Products.html" title="<?php echo $myTitle?> <?php echo "$full_state"; ?>"><?php echo $myTitle?></a>


RewriteRule ^Promotional.Products-Promotional.Items/Promotional-Products/([0-9]+)-([a-zA-Z]+)-([a-zA-Z]+)-Promotional-Products.html$ Promotional.Products-Promotional.Items/Promotional-Products.php?product_id=$1&myTitle=$2&full_state=$3

I wanted to know how I can revise the middle RegEx:
Code:

...-([a-zA-Z]+)-...

to include replacing all spaces with hyphens.

Can someone help me with this, please.

Thanks!

Hi all, I have this line (part of a larger function that converts a few common BBCodes into HTML) and I don't know how to do one thing. First, here's the line:

Code:

str.replace(/\[color=(.*?)\](.*?)\[\/color\]/gi,'<span style="color:$1;">$2</span>');

It works fine if I do this (I'll mis-spell "color" to prevent messing up the board):

THIS works fine.....
[colur=#ff0000]Red Text[/colur]

But of course, if I do this:
[colur="#ff0000"]Red Text[/colur]

It doesn't work.

What I need to do is take the $1 variable, AFTER it's captured, but BEFORE it's used, and strip out any quote marks I find. I may want to also strip out, then add the hash sign (#) also, then put it back so it works with or without the #.

While I'm at it, I'll also probably detect color as a hex string vs. a keyword (so that both "#ff0000" and "red" work) and probably also support the rgb() method.

But first I need to know how to access and modify $1 BEFORE it's used. I'm hoping that I don't need to use two lines (or two separate .replace() calls).

Thanks!

-- Roger

can anyone explain me in detail what this regular expression mean...
each and every part of this sentence:
var baseRegex = new RegExp("^(?=.{6,})(?=.*^[A-Za-z]([a-zA-Z0-9_-]+)$)(?=.*[A-Z])");

Hello,

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

I want to find in all occurrences of #(...) in a string (what is between the parentheses is unknown. At the moment I have
Code:

str.match(/#\(.*\)/)

The problem is, I want to be able to have multiple of these in one string, like "#(hello) good #(world)", but RegExp takes me from the first '#', to the last ')'.

I want to allow nested parentheses, so I am thinking that there should be away to not let it look past the second '#'. How would I do this?

Me again, having some issues with the following code...

PHP Code:
if (str.match(regEx)) {
       alert("illegal character");
} 


regEx = /[^0-9a-zA-z]/g

I have tried typing in loads of strings, and nothing is causing the alert to work.

Edit: Fixed it, it seems the fix is:
regEx = [^0-9a-zA-z]

I thought you need the /. I also can't use any modifiers, although it works fine without them.

I'm trying to convert a line using a regular expression.

The re I am using is this: <div><span>&middot;<span>[\s*]<\/span><\/span>([^<]*)<\/div>

I'm using the expression in the replace function like this:

html = html.replace( /<div><span>&middot;<span>[\s*]<\/span><\/span>([^<]*)<\/div>/gi,'<li>$1</li>') ;

the line of code I am changing is like this:

<div><span>&middot;<span> </span></span>Illness - where a pupil is too ill to leave the house</div>

eg it should strip out the code and leave <li>Illness - where a pupil is too ill to leave the house</li>

it works fine here http://www.regular-expressions.info/...ptexample.html
but when used with the replace command it does not?

Can anyone see the problem?

(I'm trying to convert bullet points from word)

Darren

Hi guys,

May i know how to write this string (1,2,4-6,9,11-13,20) in regular expression?

Restrictions:-
1) Only numbers, comma and hyphen are allowed
2) no spaces are allowed

Thanks much!

The following code removes the brackets and a dash from the string variable.
I am interested why there are \ in front of each bracket in the regular expression regexp?
The code work fine if regexp would be /()-/g;
So why then / is necessary? I would appreciate a lot with someone could explain.
Thank you very much.

<html>
<head>
<title>Regular Expressions</title>
<script type="text/javascript">
var string="(304)434-5454";
regexp=/[\(\)-]/g;
document.write(string.replace(regexp, ""));
</script>
</head>
<body>
</body>
</html>

I want a regular expression for Citi where first character should not be a blank space.

Thanks in advance

Hi Guys,

I am new to this forum, and new to the coding world, hopefully you guys will be able to help me get a little bit further in my little project.

I am attempting to parse a string that is returned when I ask a device for some metadata information, now the information that is returned looks like this,

Code:

RESPONSE "<DIDL-Lite xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"><item id="" parentID="" restricted="True"><dc:title>Una - Angels At My Door</dc:title><upnp:class>object.item</upnp:class></item></DIDL-Lite>"

,the part in bold and underlined is the piece of text I want, now previously I have done this with some framing, but that doesn't include the same characters multiple times.

Am I on the right track in believing using a Regular Expression Object is my solution ?

If so how do I go about that ? If someone could give me some advice or point me in the right direction it would be most greatly appreciated !

Thank you very much in advance !

Hi all,

As I scan each line of data that was entered into a textarea box, I need to call a function once I come across a line that starts with the following:

Code:

"0 B3C  0020365077 0045740301 3 09FEB2008 09MAR2010 " (without quotes)

I have created the following legend to help with the creating a regular expression that will validate when I have found a line that needs further processing:

N - number
L - letter
A - letter or number
S - space

So using the above legend, the first 51 characters of the line that I need to validate should always be in the following format:

Code:

"NSAAASSAAAAAAAAAASNNNNNNNNNNSASNNLLLNNNNSNNLLLNNNNS" (once again, without the quotes)

I have been reading a few articles on JavaScript regular expressions but am a bit lost at this point as how to start?

Im sorry im tired and cant think how to put this.

how do i make \\1 and \\2 = margin-bottom[^;]+); and margin-top[^;]+);

Sorry again,

Regards.

Code:

var regep = /margin-bottom:([^;]+); margin-left:0px; margin-right:0px; margin-top:([^;]+);/;

elementCSS = elementCSS.replace( regep , "margin-bottom:\\1; margin-left:auto; margin-right:auto; margin-top:\\2;");

Hi i am using this form to validate my input
Code:

function validateForm() {
	var name = document.getElementById("name");
	var descp = document.getElementById("descp");
	var language = document.getElementById("language");
	var txtFileName = document.getElementById("txtFileName");
	var alphaNumExp = /^[a-zA-Z0-9 _-]+$/;
	var isValid = true;
	if ((name.value === "" || name.value.length < 1 || name.value.length > 30) && !name.value.match(alphaNumExp)) {
		isValid = false;
	}
	if ((descp.value === "" || descp.value.length < 1 || descp.value.length > 1000) && !descp.value.match(alphaNumExp)) {
		isValid = false;
	}
	if (language.value === "") {
		isValid = false;
	}
	if (txtFileName.value === "") {
		isValid = false;
	}
	
	document.getElementById("btnSubmit").disabled = !isValid;

}

for a form. It checks everything else correctly EXCEPT for the alpha numeric part. Any ideas?? I am new to JS writing on my own(just was using other's scripts)