private Grammar loadGrammar(final Tool tool, final String fileName,
final LexerGrammar lexerGrammar) {
GrammarRootAST grammarRootAST = tool.parseGrammar(fileName);
final Grammar g = tool.createGrammar(grammarRootAST);
g.fileName = fileName;
g.importVocab(lexerGrammar);
tool.process(g, false);
return g;
}
private String toStringTree(@NotNull final Tree t, @Nullable final List<String> ruleNames) {