Re: [xml-dev] Defining a language using itself

Hi Roger,

Relax NG
http://relaxng.org/spec-20011203.html#IDA5MCS

NVDL and Schematron provide something similar, but they rely also on a 
Relax NG Schema to provide the actual document structure:
See Annex C3 from
http://standards.iso.org/ittf/PubliclyAvailableStandards/c038615_ISO_IEC_19757-4_2006(E).zip
See Annex B from
http://standards.iso.org/ittf/PubliclyAvailableStandards/c040833_ISO_IEC_19757-3_2006(E).zip

Best Regards,
George
--
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com

On 10/01/15 22:43, Costello, Roger L. wrote:
> Hi Folks,
>
> I think it is mind-blowing when a language is defined using the language itself.
>
> This document defines the XML Schema language using XML Schema:
>
> http://www.w3.org/TR/xmlschema11-1/#normative-schemaSchema
>
> That is the XML schema-for-schemas!
>
> This document defines the JSON Schema language using JSON Schema:
>
> http://json-schema.org/draft-04/schema#
>
> That is the JSON schema-for-schemas!
>
> These two documents define the ANTLR grammar language using the ANTLR grammar:
>
> https://github.com/antlr/grammars-v4/blob/master/antlr4/ANTLRv4Parser.g4
> https://github.com/antlr/grammars-v4/blob/master/antlr4/ANTLRv4Lexer.g4
>
> That is the ANTLR grammar-for-grammars!
>
> Neat!
>
> Do you know of other languages that are defined using the language itself?
>
> /Roger
>
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