source: default/trunk/de.ugoe.cs.swe.bnftools.ebnf.samples/trunk/refactoring_and_validation_samples/11_optional_zero_or_more_loop_rules/test_01.bnf

grammar test;

// demo grammar for the following refactorings and validation rules:
// - (unimplemented) optional zero or more loop validation (outer optional brackets are superfluous)

1. start ::= [ { "foo" } ]; 

// -> 1. start ::= { "foo" };