Emacs中如何实现错误回溯？
我正在用 Ocaml 编写一个编译器。例如，当我在终端中使用 make 编译和测试它时，tracback 效果很好：
export OCAMLRUNPARAM=b
./Simpler-Basic test.sib
Fatal error: exception Match_failure("interp.ml", 45, 21)
Called from file "interp.ml", line 97, characters 72-86
Called from file "list.ml", line 74, characters 24-34
Called from file "interp.ml", line 108, characters 9-35
Called from file "main.ml", line 54, characters 4-17
make: *** [all] Error 2
但是当我在 Emacs 中通过 Meta-xcompile 编译并测试它时，然后make，它不会在缓冲区中显示回溯部分：
make
export OCAMLRUNPARAM=b
./Simpler-Basic test.sib
Fatal error: exception Match_failure("interp.ml", 45, 21)
make: *** [all] Error 2
Compilation exited abnormally with code 2 at Sat Jun 18 19:03:04
我的 .emacs 中有一部分是我从朋友那里复制的，用于进行回溯：http://paste.ubuntu.com/628838/
谁能告诉我如何修改我的 . emacs 以便它像在终端中一样显示回溯？非常感谢
I am writing a compiler in Ocaml. The tracback works well when I compile and test it with make in a terminal, for instance:
export OCAMLRUNPARAM=b
./Simpler-Basic test.sib
Fatal error: exception Match_failure("interp.ml", 45, 21)
Called from file "interp.ml", line 97, characters 72-86
Called from file "list.ml", line 74, characters 24-34
Called from file "interp.ml", line 108, characters 9-35
Called from file "main.ml", line 54, characters 4-17
make: *** [all] Error 2
But when I compile and test it in my Emacs by Meta-x compile followed by make, it does not show the traceback part in the buffer:
make
export OCAMLRUNPARAM=b
./Simpler-Basic test.sib
Fatal error: exception Match_failure("interp.ml", 45, 21)
make: *** [all] Error 2
Compilation exited abnormally with code 2 at Sat Jun 18 19:03:04
There is a part in my .emacs to do traceback that I copied from a friend: http://paste.ubuntu.com/628838/
Could anyone tell me how to amend my .emacs so that it shows traceback as in a terminal? Thank you very much
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您在哪里编写
export OCAMLRUNPARAM=b？如果您在 makefile 中编写此内容（↹ 代表制表符）：
那么它不起作用，因为每个 makefile 命令都在单独的 shell 中执行，因此环境变量分配在第一行完成后消失。您可以将这两行组合成一个逻辑行：
如果您在 Emacs 中运行 Ocaml 程序时始终需要回溯，请在
.emacs中设置环境变量：为了让 Emacs 识别回溯消息作为带有位置的错误消息，您需要将它们注册在
compilation-regexp-alist。在您的.emacs中放入类似的内容（未经测试）：Where did you write
export OCAMLRUNPARAM=b?If you wrote this in a makefile (↹ stands for a tab):
then it doesn't work because each makefile command is executed in a separate shell, so the environment variable assignment vanishes after the first line completes. You can combine the two lines in a single logical line instead:
If you always want backtraces when running an Ocaml program from within Emacs, set the environment variable in your
.emacs:In order for Emacs to recognize the backtrace messages as error messages with a location, you need to register them in
compilation-regexp-alist. Put something like this in your.emacs(untested):