Easier/cleaner way to write tree-sitter grammar

[mingodad]

Here https://mingodad.github.io/lua-wasm-playground/ there is an easier/cleaner way to write tree-sitter grammars like Dart (select Tree-sitter-ebnf-generator-Dart from Examples then click Run to see a full commented out grammar.js from the EBNF variant describng the grammar in Input Text (arg[1])).

I hope it can be helpful !