Easy Regex (when you know how... and I don't)

Hi...

I hacked about for a bit and got this to work:

/^\s+/

So that it matches any whitespace characters at the start of the string. But
how can I modify it so that it matches strings made ONLY of whitespace?

P.



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re: Easy Regex (when you know how... and I don't)

The Plankmeister wrote:
[color=blue]
> Hi...
>
> I hacked about for a bit and got this to work:
>
> /^\s+/
>
> So that it matches any whitespace characters at the start of the string. But
> how can I modify it so that it matches strings made ONLY of whitespace?[/color]

Whitespace from the beginning ^ to the end $:
/^\s+$/
That wouldn't allow empty strings so maybe you want
/^\s*$/

--

Martin Honnen
http://JavaScript.FAQTs.com/

re: Easy Regex (when you know how... and I don't)

"The Plankmeister" <plankmeister_NO_@_SPAM_hotmail.com> writes:
[color=blue]
> /^\s+/
>
> So that it matches any whitespace characters at the start of the string. But
> how can I modify it so that it matches strings made ONLY of whitespace?[/color]

/^\s*$/

This matches strings that only have zero or more whitespace between
start and end of the string. If you don't want to include empty strings,
change the "*" to a "+".

/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit.html>
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