Re: Want to reject all-whitespace text input.

[Frank Burns]

But I want to be able to accept an "empty" value and just reject whitespace. 
That is, I don't want whitespace to be accepted as a vaid value -- it should 
be either empty or contain a valid (non-all-whitespace) value.

----- Original Message ----- 
From: "Joe Germuska" <[EMAIL PROTECTED]>
To: "Frank Burns" <[EMAIL PROTECTED]>; "Struts Users Mailing 
List" <[EMAIL PROTECTED]>
Sent: Sunday, November 21, 2004 2:20 PM
Subject: Re: Want to reject all-whitespace text input.


The "required" validator should do what you need.  It requires that the 
value be non-null and have at length > 0 after String.trim() is called.

Joe
At 1:22 PM +0000 11/21/04, Frank Burns wrote:
Hi,
I am trying to write a regular expression for a mask, for use in the 
validation.xml file, that will reject input text that consists of all 
whitespace characters. But, no matter what pattern I try, an 
all-whitespace entry is always accepted.

Is there some strange rule, as part of the Validator's validation process, 
that always accepts whitespace? Or is there something else going on?

Do I have to resort to accepting the all-whitespace input, detecting it in 
the ActionForm's validate method and manually setting a message in 
ActionErrors?

Thanks,
Frank.
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--
Joe Germuska            [EMAIL PROTECTED]  http://blog.germuska.com 
"Narrow minds are weapons made for mass destruction"  -The Ex 

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