comment auto-wrap mode

[Andreas Roehler]

http://stackoverflow.com/questions/11969442/comment-mode-in-emacs

I commonly program in languages that don't have any sort of block/multiline comment (e.g. python [#] and fortran [c or !].). Is there any way to define a minor mode in emacs that would allow me to enter multiline comments? By that I mean, it would cause emacs to wrap text automatically after X lines (say 72) and automatically prepend a comment character (taken from the current major mode) to the beginning of each line?

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You can use the following code:

(setq fill-column 72)
(setq comment-auto-fill-only-comments t)
(auto-fill-mode t)

This will wrap the text automatically, only for the comments, and will insert the comment character everytime it does a line break.

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as several variable have to be set at once, IMO it's worth a command toggling it.