Re: [xml-dev] Validation of missing elements in xml:

[Eric van der Vlist <vdv@dyomedea.com>]

Hi Mukul,

Le mardi 04 avril 2006 à 16:04 +0530, Mukul Gandhi a écrit :
> On 4/4/06, Mukul Gandhi <gandhi.mukul@gmail.com> wrote:
> 
> > <xs:simpleType name="mystring">
> >   <xs:restriction base="xs:string">
> >      <xs:minLength value="1"/>
> >      <xs:pattern value="[A-Za-z]{1,}&#x20;*[A-Za-z]{1,}"/>
> >   </xs:restriction>
> > </xs:simpleType>
> 
> Sorry, there is no need of <xs:minLength value="1"/>

I am not convinced that

<xs:simpleType name="mystring">
   <xs:restriction base="xs:string">
      <xs:pattern value="<<magic regular expression here>>"/>
   </xs:restriction>
</xs:simpleType>

could be considered better (or simpler) than:

<xs:simpleType name="mystring">
   <xs:restriction base="xs:token">
      <xs:minLength value="1"/>
   </xs:restriction>
</xs:simpleType>

If your regular expression was right, you could allow the same set of
text nodes but I don't really see the benefit...

Eric 

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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(ISO) RELAX NG   ISBN:0-596-00421-4 http://oreilly.com/catalog/relax
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