Search Atom packages.

language-abnf

ABNF language support in Atom
jmitchell
28

metalanguage

Syntax highlighting and transformation tools for standard syntactic metalanguages: BNF, WSN, EBNF, ABNF, W3C EBNF
psmitt
225

language-grammars

Syntax highlighting for ABNF/BNF/EBNF, Yacc, and other language-related languages.
Alhadis
89