[thelist] The truth about XML

Christopher Joseph christopher at ideadesigners.com
Mon Oct 6 02:31:32 CDT 2003

Simon Willison wrote:
> XHTML is a subset of XML, but XML is not a subset of XHTML.

To show that I am a pedant :) XHTML is an implementation of XML whereas 
HTML was a subset of SGML. The difference is (I believe) that HTML 
initially used part of the vocabulary of SGML but XML as others have 
pointed out is merely the rules by which other vocabularies might be 
defined -> in this case XHTML.

Christopher Joseph

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