Simple Outline XML

Simple Outline XML (SOX) is a compressed way of writing XML.

SOX uses indenting to represent the structure of an XML document, eliminating the need for closing tags.

Example
The following XHTML markup fragment:

... would appear in SOX as:

html> xmlns=http://www.w3.org/1999/xhtml head> title> Sample page body> p> A very brief page

SOX can be readily converted to XML.