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Re: Reusing Locally Defined Element in the Same parentTag usin

• From: Michael Kay <mike@saxonica.com>
• To: xml-dev@lists.xml.org
• Date: Tue, 08 Jan 2013 09:08:56 +0000

When people ask "why?" in relation to a rule in a specification, there 
are two possible ways to try and answer it:

(a) historical causality: scour the minutes of the meetings to determine 
when the decision was made, what arguments were put forward for and 
against, and how the voting went. This is rarely possible; even those 
who were present at the relevant meeting often have trouble working out 
why the decision went a particular way. But when you're investigating 
the absence of a feature, the most likely conclusion of such an 
investigation is that no-one ever proposed the desired feature, and 
therefore the committee never debated it. To find out why no-one 
proposed it, you would have to ask about 50 different people why they 
didn't propose it during their membership of the working group.

(b) post-hoc rationalization: that is, ask people involved in the design 
process whether or not they would have supported a proposal to add the 
relevant feature if such a proposal had been made at a suitable time. In 
my case, I think the answer is probably that I would have opposed adding 
it, on the grounds that the language is quite complicated enough 
already, and the usability benefits are marginal.

Michael Kay
Saxonica

On 08/01/2013 07:09, Nishant Bulchandani wrote:
> hi,
>
> For the Snippet below :
>
> <xs:complexType name="Team">
>      <xs:sequence>
>          <xs:element name="Name" type="xs:string"/>
>          <xs:element name="Size">
>              <xs:simpleType>
>                  <xs:restriction base="xs:integer">
>                      <xs:totalDigits value="1"/>
>                  </xs:restriction>
>              </xs:simpleType>
>          </xs:element>
>          <xs:element name="teamLeads">
>              <xs:complexType>
>                  <xs:sequence>
>                      <xs:element ref="Size"/>
>                  </xs:sequence>
>              </xs:complexType>
>          </xs:element>
>      </xs:sequence>
> </xs:complexType>
>
>
> The element "Size" has local scope , Why Can't it be reused locally?
> Usually in Programming Languages , a local element is accessible in
> its complete Local Scope.Why isn't it implemented the same way
> here?(i.e Why is "Size" not referenceable inside the whole "Team" Tag
> )
>
>
> Thanks
>
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• References:
  • Reusing Locally Defined Element in the Same parent Tag using "ref" ?
    • From: Nishant Bulchandani <nbulchandanidev@gmail.com>