Re: Confusion about first-change-hook

[David Engster <deng@randomsample.de>]

Jambunathan K. writes:
> David Engster <deng@randomsample.de> writes:
>
>> I wanted to do something very simple: Activate whitespace-mode only when
>> I start editing a buffer. So I looked into the manual and found
>> `first-change-hook', which seemed exactly what I wanted.
>
> This seems to work:
>
>     (add-hook 'c++-mode-hook
>               (lambda nil
>                 (add-hook 'before-change-functions 'activate-whitespace-mode
>                           nil 'local)))
>
>     (defun activate-whitespace-mode (beg end) 
>       (whitespace-mode 1)
>       (remove-hook 'before-change-functions
>                    'activate-whitespace-mode 'local))

Thank you. This works nicely.

-David