- From: Paul Warren <pdw@decisionsoft.com>
- Date: 27 Feb 2003 16:11:29 +0000
- To: Anli Shundi <ashundi@tibco.com>
- Cc: "'daniella d'" <daneladg@yahoo.co.uk>, xmlschema-dev@w3.org
On Thu, 2003-02-27 at 15:42, Anli Shundi wrote: > I think the regular expressions should be rewritten > to escape the dot, i.e. > > <xsd:pattern value = "[0-9][\.][0-9]*"/> > <xsd:pattern value = "[1-9][0-9]*[\.][0-9]*"/> > <xsd:pattern value = "[1-9][0-9]*"/> > > If the dot is unescaped it matches any character, > thus "[0-9][.][0-9]*" matches 0123. No. "[.]" is a perfectly valid way to match a literal ".". See: http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#nt-charRange It is equivalent to "[\.]" and to "\.". Personally, I'd write it as (0\.[0-9]*|[1-9][0-9]*(\.[0-9]*)?) but in fact, I'd probably want: (0(\.[0-9]+)?|[1-9][0-9]*(\.[0-9]+)?) as this allows "0", but forbids "0." and "123." etc. Paul
Received on Thursday, 27 February 2003 11:11:34 UTC