Question

我当然错了，但是antlr的枪支似乎对用户没有选择权。

bash-3.2$ java org.antlr.gunit.Interp --help
Exception in thread "main" java.io.FileNotFoundException: --help (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:120)
    at java.io.FileInputStream.<init>(FileInputStream.java:79)
    at org.antlr.runtime.ANTLRFileStream.load(ANTLRFileStream.java:59)
    at org.antlr.runtime.ANTLRFileStream.<init>(ANTLRFileStream.java:47)
    at org.antlr.runtime.ANTLRFileStream.<init>(ANTLRFileStream.java:42)
    at org.antlr.gunit.Interp.main(Interp.java:62)
bash-3.2$

特别是，我想打开详细选项，否则它会在发生错误时说得很少你知道如何打开它的详细/调试选项吗？

 [java] -----------------------------------------------------------------------
 [java] executing testsuite for grammar:while with 31 tests
 [java] -----------------------------------------------------------------------
 [java] 2 failures found:
 [java] test15 (variables, line20) - 
 [java] expected: OK
 [java] actual: FAIL
 [java] 
 [java] test20 (read, line27) - 
 [java] expected: OK
 [java] actual: FAIL
 [java]

Answer 1

假设您正在使用antlr3，查看GitHub上的源代码（https://github.com/antlr/antlr3/blob/master/gunit/src/main/java/org/antlr/gunit/Interp.java），您认为没有详细的选项是正确的。

验证测试失败原因的一种方法是在调试模式下通过AntlrWorks运行输入，以便您可以看到匹配的规则。

antlr.gunit.Interp的选项有哪些？如何启用其详细选项？

1 个答案: