RE: [xml-dev] What constitutes a "markup language"? What is an "information exchange language"? When do data exchanges not exchange information?

On 04/05/2015 11:17 PM, "Steve Cuzner" <[email protected]> wrote:
>>… XML is so subsetted from SGML that it is only functional as a markup language with effort.

>>XML is a markup language by DNA but it is not really a syntax good for marking up documents with, meaning the activity of marking up not the result: contrast with HTML which retains tag and delimiter omission a la SGML. Which is why, for marking up (as an activity), the world uses HTML or wiki. I dont think choice is a bad thing: html, wiki, csv, json  when the scenerio clearly suits them and xml otherwise.

> This implies that the defining purpose of markup is the activity of marking up.

Yes, to a large extent. If your notation is not aimed at humans, a notation that is at least good for machines may be attractive.

Rick