@Before
public void init() {
Nonterminal X = Nonterminal.withName("X");
Nonterminal A = Nonterminal.withName("A");
Nonterminal B = Nonterminal.withName("B");
Nonterminal C = Nonterminal.withName("C");
Rule r1 =
Rule.withHead(X)
.addSymbol(Nonterminal.builder(A).setLabel("a").build())
.addSymbol(
Star.builder(
Sequence.builder(
Code.code(
Nonterminal.builder(B)
.addPreCondition(predicate(equal(rExt("a"), lExt("b"))))
.build(),
stat(println(lExt("b")))),
Code.code(
Nonterminal.builder(C).setLabel("b").build(),
stat(println(var("b")))))
.build())
.setLabel("b")
.build())
.build();
Rule r2 = Rule.withHead(A).addSymbol(Terminal.from(Character.from('a'))).build();
Rule r3 = Rule.withHead(B).addSymbol(Terminal.from(Character.from('b'))).build();
Rule r4 = Rule.withHead(C).addSymbol(Terminal.from(Character.from('c'))).build();
grammar = Grammar.builder().addRules(r1, r2, r3, r4).build();
}
