RegExp opional digit amount 2

[MarkZK]

Hi,
Could someone that knows regexp tell me how to check the height attribute, I'm not sure if this is the best way to go about it but here is what I have so far,
var hght = /(")?\d{3}(%?)(")?/g;

whether there are quotes is optional (height="100" height=100%) and the same applies for the percent sign, the problem I'm having is allowing for one digit, two digits, and three digits from one to nine but no higher (highest value = 999 lowest = 1), I hope I explained that right, Thanks

 

[cLFlaVA]

i think something like this should work:

var hght = /\"?\d{1,3}\%?\"?/g;

*cLFlaVA
----------------------------
[tt]"quote goes here"[/tt]
[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[MarkZK]

Hi cLFlaVA, yours works much better than mine, but when I enter the value "1000%" it returns "100,0%" instead of null, still at least I can enter "50%" now, Thanks.

 

[cLFlaVA]

you'll need to show some more code so we can help with your , problem.



*cLFlaVA
----------------------------
[tt]"quote goes here"[/tt]
[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[MarkZK]

I'm just testing it right now, all I'm using is this,

<script type="text/javascript">
a = '"100%"';
var hght = /\"?\d{1,3}\%?\"?/g;
//var hght = /(")?\d{3}(%?)(")?/g;
document.write(a.match(hght));
</script>

 

[cLFlaVA]

i think what you're looking for is this:

<script type="text/javascript"><!--
var a = '"100%"';
var hght = /^\"?\d{1,3}\%?\"?$/;
//var hght = /(")?\d{3}(%?)(")?/g;
document.write(hght.test(a));
//--></script>

*cLFlaVA
----------------------------
[tt]"quote goes here"[/tt]
[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[MarkZK]

I think you're right, Thanks a lot .

 

[kaht]

Just to further explain, when you use the match method it returns an array of information about the match. In the case of your original test, it found 2 matches in your string:

"[b][COLOR=blue]100[/color][COLOR=red]0%[/color][/b]"

As you can see, the blue part matches the regular expression, between 1 and 3 numbers, with or without a percentage sign. And the red also meets the same criteria. So, it sends you back a 2 element array that says "these substrings met the criteria for a match".

As cory suggested you can use the test method instead which returns a boolean value of true or false, indicating whether or not any match was made.

-kaht

http://www.silkypups.com

[small](All puppies have now found loving homes, thanks for all who showed interest)[/small]

 

[cLFlaVA]

well-put kaht.



*cLFlaVA
----------------------------
[tt]"quote goes here"[/tt]
[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[kaht]

-kaht

http://www.silkypups.com

[small](All puppies have now found loving homes, thanks for all who showed interest)[/small]

 

[MarkZK]

I see, that makes sense, thanks.