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Re: .cpp, switch to .h
From: |
Alan Mackenzie |
Subject: |
Re: .cpp, switch to .h |
Date: |
Sat, 14 Feb 2004 14:38:02 +0000 |
User-agent: |
tin/1.4.5-20010409 ("One More Nightmare") (UNIX) (Linux/2.0.35 (i686)) |
Daniel Lidstrom <someone@microsoft.com> wrote on Sat, 14 Feb 2004
10:53:58 +0100:
> On Fri, 13 Feb 2004 23:42:38 -0500, Benjamin Rutt wrote:
>> Daniel Lidstrom <someone@microsoft.com> writes:
>>> Hello,
>>> I would like a script that I can bind to Ctrl-Shift-h that will
>>> switch from a .cpp file to the associated .h file, if there is one.
>>> For example, if I have Hash.cpp opened and press the selected keys,
>>> emacs switches to Hash.h. If there is no Hash.h nothing is done. Any
>>> help appreciated. Thanks!
>> Looks only in the same directory as the .cpp file:
>> (defun my-goto-h-file ()
>> (interactive)
>> (when (string-match "\\.cpp$" (buffer-file-name))
>> (let* ((h-file (format "%s.h"
>> (file-name-sans-extension (buffer-file-name)))))
>> (when (file-exists-p h-file)
>> (find-file h-file)))))
>> (define-key c++-mode-map (kbd "C-S-h") 'my-goto-h-file)
> I tried to add your script into my .emacs file, but it seems I made a
> mistake somewhere. This is what emacs reports in backtrace:
> Debugger entered--Lisp error: (void-variable c++-mode-map)
> What did I do wrong?
You didn't have CC Mode loaded yet, so c++-mode-map hadn't yet been
defined. A good way to solve this is explicitly to tell the system to
make the binding _after_ it's loaded CC Mode, like this:
(defun my-goto-h-file ()
.....
(find-file h-file))
(eval-after-load "cc-mode"
'(define-key c++-mode-map (kbd "C-S-h") 'my-goto-h-file))
DON'T forget the little tick which quotes the define-key form! ;-)
[ .... ]
> --
> Daniel
--
Alan Mackenzie (Munich, Germany)
Email: aacm@muuc.dee; to decode, wherever there is a repeated letter
(like "aa"), remove half of them (leaving, say, "a").