Tree Regular Expression for XML (TREX) is a language for validating XML documents. TREX has been merged with RELAX to create RELAX NG. All future development of TREX will take place as part of the RELAX NG effort.
Also see
RELAX NG.
Organization: Thai
Open Source Software Center
More information: TREX
page on the Thai Open Source Software Center Web site (new window)