cam message

Subject: RE: [cam] Masks
From: [email protected]
To: [email protected]
Date: Fri, 11 Jul 2003 09:08:35 +0100
David,
	You always change things  just when I thought I had got it
sorted.

	Firstly I do not understanf what the '/' means.  Does it mean
the letter before is mandatory?

	Secondly where did the 'N' come from.  I thought it was '#'.
The reason for the symbols was that for numbers we have 0 for mandatory
# for optional (digits and whitespace and nothing)  so I thought symbols
for option letter might be approriate?

Martin Roberts 
xml designer, 
BT Exact
e-mail: [email protected] 
tel: +44(0) 1473 609785  clickdial
fax: +44(0) 1473 609834
Intranet Site :http://twiki.btlabs.bt.co.uk/twiki



-----Original Message-----
From: David RR Webber - XML ebusiness [mailto:[email protected]] 
Sent: 11 July 2003 04:52
To: Roberts,MME,Martin,XSG3 R
Cc: [email protected]
Subject: RE: [cam] Masks


Martin,

Excellent catch.

What about the '/' as in U/UN/N U/UN/N  for a UK postal code?

Thanks, DW. ========================================================
Message text written by INTERNET:[email protected]
>
        For string masks this does not exist.  Therefore I suggest that
we introduce this concept for strings.  The problem is what character to
use?  I suggest the following:

        X any char mandatory     . Any char optional
        U Uppercase mandatory    ^ Uppercase optional
        L Lowercase mandatory    _ Lowercase optional

        What doe you think?
<