public static void Derive([NotNull, ItemNotNull] this List <Symbol> tape, [NotNull] GrammarType0 grammar,
[NotNull] IDerivationTracker tracker)
{
while (tape.TryDerive(grammar, tracker))
{
}
}
private static bool TryDerive([NotNull, ItemNotNull] this List <Symbol> tape, [NotNull] GrammarType0 grammar,
[NotNull] IDerivationTracker tracker)
{
if (!grammar.Rules.Any(rule => TryDerive(tape, rule, tracker)))
{
return(false);
}
return(true);
}
