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Re: RE: Declarative programming requires a different mindset

  • From: Dave butlerdi <butlerdi@gmail.com>
  • To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
  • Date: Sun, 11 Apr 2010 23:13:28 +0200

Re:  RE: Declarative programming requires a different mindset
Not a big fan of pointy brackets but DPML os certianly one of my favorite declarative programming languages.

On Sun, Apr 11, 2010 at 10:54 PM, Michael Ludwig <milu71@gmx.de> wrote:
Costello, Roger L. schrieb am 11.04.2010 um 16:29:38 (-0400):

> If XSD is not a programming language then what is it?

* a schema language
* a grammar
* an XML vocabulary
* a specification
* an acronym
* other things

It depends on your point of view.

The one you seem to be after is the first one, a schema language.

> People have said that a programming language is one that can solve
> many different kinds of problems. Certainly, then, XSD is not a
> programming language.

It is not a programming language. Learn a programming language or two,
preferably any without angle brackets - C, Perl, Ruby, Java, there is
plenty of choice - and then compare it to XSD. It'll then be clear to
you that XSD is not a programming language.

> Both XSD and programming languages are languages for solving problems.

As with any language, it depends on what use you make of them. Sometimes
it feels like languages are used to create problems.

> So, if I were to draw a Venn diagram I would draw a:
>    - bubble for XSD
>    - bubble for programming languages (independent of the XSD bubble)
>    - put both of the bubbles inside a big bubble
> What would you label the big bubble?

I'd simply label it "big bubble", or maybe "outer circle", or even

I hope this helps!

Michael Ludwig


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Dave Butler

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