Regex in asp.net for allowing only characters with single space?

Question

I want to allow a user to enter only characters and with single space in a textbox. What i have tried is :

^[\w\.:\(\)\[\]{}\-_](?: ?[\w\.:\(\)\[\]{}\-_])*$

it is blocking all but allowing digits also . How to make it correct such that it only allow characters and no digits but a single space between words? Thank you.

Toto · Accepted Answer · 2014-01-26 10:06:43Z

1

I'd use:

^[\p{L}.:()[\]{}_-]+(?: [\p{L}.:()[\]{}_-]+)*$

Where \p{L} stands for any letter.

Edit:
I've changed \pL to \p{L} because it's not supported by .NET.
Thanks to Alan Moore.

edited Jan 26, 2014 at 10:06

answered Jan 25, 2014 at 10:56

Toto

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1 Comment

Alan Moore Over a year ago

+1, but .NET doesn't support the short form for "top level" Unicode properties like \pL; you have to use \p{L}. Also, don't make the space optional; that's already handled by the * on the group.

Marius Schulz · Accepted Answer · 2014-01-25 10:36:18Z

0

Is ([A-Za-z])+( [A-Za-z]+) what you're after? Or do you want the regex to only match once?

edited Jan 25, 2014 at 10:36

Marius Schulz

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answered Jan 25, 2014 at 10:09

Jake Rote

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Comments

Vignesh Kumar A · Accepted Answer · 2014-01-25 10:43:43Z

0

Assuming there must be either oneor two 'words' (i.e. sequences of non-space characters)

"\s*[A-Za-z] +(\s[A-Za-z] +)?\s*"

edited Jan 25, 2014 at 10:43

answered Jan 25, 2014 at 10:38

Vignesh Kumar A

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