[Wylug-help] Javascript Regular expression

[Dave Whiteley]

On Wed, May 26, 2004 at 01:00:48PM +0100, Dave Whiteley wrote:
> Hello All,
>
> I am puzzled...
>
> I am tinkering with some proprietory software, which is partly
> controlled by a web form. This is validated by javascript, and I am
> trying to work out what it is expecting.
>
> The code is
>
> function checkMdir(value)
> {
> 	var pattern = /^(((\/\w+(\w+)*)+)((\s((\/\w+(\w+)*)+))*))$/;
> 	return (pattern.test(value));
> }
>
> The value being tested is passed as value.
>
> As I read this it is asking for "slash word" optionally followed
> by any number more of the same, separated by single spaces.
>
> It does not seem to be accepting this.
>
> Is it me, or is my browser doing something odd?
>
> When I look at \/\w+(\w+)* I cannot see what the (\w+)* achieves. Is it
> not already handled by the + on the first one.
>
> Dave

Thanks Nik,

Woops,  my finger trouble I suspect.  Multiple spaces?

Still, am I right about the last bit being odd?

Dave



--

Dave Whiteley
d.l.whiteley at ee.leeds.ac.uk
Phone +44 (0)113 343 2059
School of Electronic and Electrical Engineering
The University of Leeds. Leeds, LS2 9JT,  UK