Main.java 文件源码

private static void run(String expr) throws Exception {
    //构建流CodePointCharStream(4.7版本ANTLRInputStream标记为deprecated)
    CodePointCharStream in = CharStreams.fromString(expr);
    //词法分析
    LionLexer lexer = new LionLexer(in);
    //token流
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    //语法分析器
    LionParser parser = new LionParser(tokens);
    //验证
    parser.prog();
}