Add support for EBNF

Extended Backus–Naur form ([EBNF][]) is a metalanguage used to specify
language grammars.

[EBNF]: https://en.wikipedia.org/wiki/Extended_Backus–Naur_form
This commit is contained in:
René Schwaiger
2016-10-31 14:51:51 +01:00
parent 417239004a
commit 33899b9d6b
9 changed files with 184 additions and 0 deletions