RELAX NG - standard

RELAX NG

ISO/IEC 19757-2

JIS X 4177-2

XMLのスキーマ記述言語?

DSDLっぽい

https://relaxng.org/

RELAXとTREXを統合してみたりしたもの

XML構文とコンパクト構文の2つがある?

定義はEBNF

RELAX NG https://www.oasis-open.org/committees/relax-ng/spec.html

RELAX NG Compact Syntax https://www.oasis-open.org/committees/relax-ng/compact-20021121.html