How can i validate an input field to ensure that a URL has been entered correctly? ie:
Thanks,
pixel
Thanks,
pixel
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URL Validation
- Thread starter pixel69
- Start date
BillyRayPreachersSon
Programmer
Do you want to validate only HTTP protocol URLs, or allow for other protocols as well?
Also, do you really want to ensure that "www" is always entered if the protocol is HTTP? I ask, as this is NOT a requirement of the HTTP protocol - machines can be given any name, it's just that "www" has caught on for web server names.
Dan
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Also, do you really want to ensure that "www" is always entered if the protocol is HTTP? I ask, as this is NOT a requirement of the HTTP protocol - machines can be given any name, it's just that "www" has caught on for web server names.
Dan
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[/tt]
BillyRayPreachersSon
Programmer
I guess what I'm asking in a nutshell is:
Do you want to validate against a known spec (for URLs), or do you want to validate against your own requirements?
The two are clearly very different, if your above example is the only thing you want URLs to begin with.
Dan
[tt]Dan's Page [blue]@[/blue] Code Couch
[/tt]
Do you want to validate against a known spec (for URLs), or do you want to validate against your own requirements?
The two are clearly very different, if your above example is the only thing you want URLs to begin with.
Dan
[tt]Dan's Page [blue]@[/blue] Code Couch
[/tt]
Here is an example test page that shows how you cuold use a regular expression to do this:
This code requires all URLs to start: (and will have some text followed by a . and then more text. It's not a perfect solution ![[smile]](/data/assets/smilies/smile.gif "[smile] [smile]")
Cheers,
Jeff
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Code:
<html>
<head>
<title></title>
<script type="text/javascript">
function validateData(_myKey){
var bValid = /^http:\/\/www\.([^.])+\.([^.])+$/.test(_myKey);
return bValid;
}
</script>
</head>
<body>
<form>
<input name="mydata" value="[URL unfurl="true"]http://www.google.com">[/URL]
<a href="javascript:alert(validateData(document.forms[0].elements['mydata'].value));">Test</a>
</form>
</body>
</html>Cheers,
Jeff
[tt]Jeff's Page [/tt][tt]@[/tt][tt] Code Couch
[/tt]
- Thread starter
- #5
Thanks guys for your feedback.
As you mention BillyRayPreachersSon, I would just like to validate a field if it contains a http:// & or ".". I only remebered now that there are lots of sites that don't have the
Thanks
Pixel
As you mention BillyRayPreachersSon, I would just like to validate a field if it contains a http:// & or ".". I only remebered now that there are lots of sites that don't have the
Thanks
Pixel
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