Emacs：在LaTeX模式下进行段落填充时，请关闭缩进

Question

When I am using emacs to edit a latex document the paragraph fill (Esc-q) does not do what I want. For example, something like:

The component \vn{%vec} is not similar to

When I use fill I get:

The component \vn{%vec} is not
                  % similar to

That is, emacs is taking "%" to be a comment character and filling the paragraph accordingly. However, "\\vn" is a macro of mine that sets text in texttt mode and here "%" is simply a regular printable character so the paragraph fill has done things incorrectly.

So what I want is for paragraph fill to be the same it is as in text-mode. That is, no indentation and no adding extra characters. But I don't want to have to toggle between text-mode and latex-mode every time I want to paragraph fill. Is there any way to do this?

Thanks for the help. -- David

PS: Yes, I do know that if there are real comments at the end of lines then the test-mode fill will not do things correctly. But I never put comments at the end of lines so this will never bother me.

Answer 1

I found the solution. I put this in my init.el file:

(add-hook 'latex-mode-hook        '(lambda() (setq comment-start nil)))
(add-hook 'tex-mode-hook          '(lambda() (setq comment-start nil)))

(add-hook 'latex-mode-hook        '(lambda() (setq fill-indent-according-to-mode nil)))
(add-hook 'tex-mode-hook          '(lambda() (setq fill-indent-according-to-mode nil)))

I love emacs but the documentation (or lack thereof) can sometimes drive me crazy... :).

Answer 2

You can try:

(setq comment-start nil)

to handle this specific case.

Answer 3

What you're trying to fix is a symptom of the real problem -- latex-mode is naively marking code after "%" as comment.

Does installing auctex-mode fix your problem?