[thelist] javascript regexp help!

[Mark Gallagher]

Erick Papadakis wrote:
> hi, i want to use regexp to find out if a URL entered
> is correct. i am trying the following code:
>
>     myreg = new
> RegExp("/^(http|https|ftp):\/\/((?:[a-zA-Z0-9_-]+\.?)+):?(\d*)/");
>     if (myreg.test(url)) return true;
>     else return false;
>
> what is wrong with this? sorry if the code above
> breaks and wraps on to four lines, but the first line
> is on one line so that is not the issue.

I'm guessing (since you're using regexps) that you already know this, so
if it seems I'm talking down to you - sorry.

But is your example just a simplified version, or did you really forget
to use the curly brackets {}?

   myreg = new
RegExp("/^(http|https|ftp):\/\/((?:[a-zA-Z0-9_-]+\.?)+):?(\d*)/");
     if (myreg.test(url)) {
       return true;
     } else {
       return false;
     }


(I'm not a big fan of JavaScript, so the above may not be *exact*.  But
it's probably closer :-))



--
Mark Gallagher
http://cyberfuddle.com/infinitebabble/