RE: Validation - Mask

[Jaswinder Kaur]

Thanks a lot. It work....

Thanks
 

-----Original Message-----
From: Greg Pelly [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 23, 2005 6:12 PM
To: Struts Users Mailing List
Subject: RE: Validation - Mask


Add a ^ to the beginning of the pattern. Try changing:
  <var-value>[^/$&amp;=]+$</var-value>
To
  <var-value>^[^/$&amp;=]+$</var-value>

That should work.

If you're not familiar with regular expressions, a ^ at the beginning of a
regexp matches the string starting at the beginning (just as the $ matches
at the end).  Without it, as long as _something_ comes before the forbidden
characters, the mask will return true.

To see the difference, paste this Javascript into an HTML doc.

<script>
  var pattern = /[^&$]+$/; //"this" will match in the regular expression
  alert (pattern.exec("this& is a Test")) ;

  var pattern = /^[^&$]+$/; //regexp will fail.
  alert (pattern.exec("this& is a Test")) ;
</script>

Greg

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