versioned-text-markup-language - Text markup language

versioned-text-markup-language is a text markup language created in 1999.

#2970on PLDB

25Years Old

VTML (Versioned Text Markup Language), a markup language for storing document version information. VTML can easily be implemented within a text editor, and provides a notation and semantics for tracking successive revisions to a document. The main purpose of VTML is to allow asynchronous collaboration in the creation and editing of text documents.

versioned-text-markup-language website

Example from the web:

<!--{ATTR ID=1 vers=1 author="fabio" date="Jul 16, 1995"}-->
<!--{ATTR ID=2 vers=CURRENT author="david" date=NOW}-->
<!--{INS ATT=1}--> This is <!--{DEL ATT=2}-->
your<!--{/DEL}--> <!--{INS ATT=2}--> my <!--{/DEL}-->
document.