ctags 命令不会递归地说“它不是常规文件”。

发布于 2024-09-03 17:43:48 字数 419 浏览 5 评论 0原文

当我运行 ctags -R * 时，我收到错误消息，指出所有目录都不是常规文件，并且它会跳过它们，而不是为它们递归生成标签。

ctags: skipping arpa: it is not a regular file.
ctags: skipping asm: it is not a regular file.
ctags: skipping asm-generic: it is not a regular file.
ctags: skipping bits: it is not a regular file.
ctags: skipping blkid: it is not a regular file.
ctags: skipping boost: it is not a regular file.

问题是什么？

原文

When I run ctags -R *, I get errors saying that all directories are not regular files and it skips them instead of recursively generating tags for them.

ctags: skipping arpa: it is not a regular file.
ctags: skipping asm: it is not a regular file.
ctags: skipping asm-generic: it is not a regular file.
ctags: skipping bits: it is not a regular file.
ctags: skipping blkid: it is not a regular file.
ctags: skipping boost: it is not a regular file.

What is the problem?

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仙气飘飘 2024-09-10 17:43:48

类似于此和这个，问题是你没有运行 Exuberant Ctags，你运行的是 GNU Emacs etags，它还提供了 ctags 可执行文件。运行 ctags --version ，您会看到类似这样的内容：

ctags (GNU Emacs 23.1)
Copyright (C) 2009 Free Software Foundation, Inc.
This program is distributed under the terms in ETAGS.README

如果您查看手册页，您会发现 -R 实际上相当于 --无正则表达式。事实上，手册页甚至没有提到递归作为一个选项。

   -R, --no-regex
          Don't  do  any more regexp matching on the following files.  May
          be freely intermixed with filenames and the --regex option.

您可能可以使用 shell magic 递归地生成标签，但是如果您期待 Exuberant Ctags，那么您可能会遇到问题。因此，最好的解决方案可能是安装您想要的 ctags：

sudo apt-get install exuberant-ctags

Exuberant Ctags 也可以从源代码安装：

http://ctags.sourceforge.net/

Similar to this and this, the problem is you're not running Exuberant Ctags, you're running GNU Emacs etags, which also provides a ctags executable. Run ctags --version and you'll see something like this:

ctags (GNU Emacs 23.1)
Copyright (C) 2009 Free Software Foundation, Inc.
This program is distributed under the terms in ETAGS.README

And if you look in the man page, you'll see that -R is actually equivalent to --no-regex. In fact, the man page doesn't even mention recursion as an option.

   -R, --no-regex
          Don't  do  any more regexp matching on the following files.  May
          be freely intermixed with filenames and the --regex option.

You could probably generate the tags recursively using shell magic, but you may run into problems down the road if you're expecting Exuberant Ctags. So the best solution is probably to install the ctags you want instead: