Re: [xml-dev] Auto-convert an XML-encoding of BNF grammars into XSD?

As you'll know the grammar formalisms for markup languages aren't
designed to represent general context-free grammars, but only regular
tree languages (= regular languages over content model tokens).

Within these constraints, XML DTDs do exactly what you want, in a
kindof Backus-Naur format (that could be hacked to look like Backus-Naur
even more using parameter entities I guess).

Though, compared to general BNFs for regular languages, they can
only express 1-unambiguous grammars. But since you said you want
XSDs as output, that might not be a problem for your application,
as valid XSDs share these restriction with DTDs (though formally,
XSDs can represent a slightly larger class of grammars than DTDs).

On Mon, Nov 28, 2016 at 5:50 PM, Costello, Roger L. <> wrote:
> Hi Folks,
>
> Have you devised an approach for encoding in XML any BNF grammar?
>
> If yes, have you written an XSLT program that can convert any XML-encoded BNF grammar into XSD?
>
> /Roger
>
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