Dbg.java 文件源码

public static void main(String[] args) throws Exception {
    ANTLRv4Lexer lexer = new ANTLRv4Lexer(new ANTLRFileStream("grammars/org/antlr/codebuff/ANTLRv4Lexer.g4"));
    CommonTokenStream tokens = new CodeBuffTokenStream(lexer);
    ANTLRv4Parser parser = new ANTLRv4Parser(tokens);
    ANTLRv4Parser.GrammarSpecContext tree = parser.grammarSpec();
    System.out.println(tree.toStringTree(parser));
}