Re: comment / uncomment region

[Kevin Rodgers <ihs_4664@yahoo.com>]

Pascal Bourguignon wrote:
 > Yes, that's because comment-start is a buffer-local variable.
 > You have to set it in your grammar buffer.
 >
 > You can do it manually with:
 >
 >     M-x eval-expression RET (setq comment-start "//") RET
 >
 > or rather:
 >
 >     M-x set-variable    RET comment-start RET "//" RET
 >
 >
 > You could put this at the end of each of your grammar files:
 >
 > // Local Variables:
 > // comment-start: "//"
 > // End:
 >
 > Or, if you don't want to program a mode for your grammar files you
 > could have a find-file-hook that would check the file type (or file
 > name extension) and would initialize the buffer environment when it
 > finds that a grammar is being opened. Something like:
 >
 > (add-hook 'find-file-hook
 >      (lambda ()
 >         (when (string-match "\\.grammar$" (buffer-file-name))
 >            (setf comment-start "//")
 >            ;; ...
 >            )))

Those are all good suggestions, but I would recommend trying out
define-generic-mode: you can define your own major mode just by
specifying 6 values, most of which are just lists of strings
(keywords, etc.).

-- 
Kevin Rodgers