Re: Going to line n, column m

[Lennart Borgman (gmail)]

Pascal J. Bourguignon wrote:
> Mauricio <briqueabraque@yahoo.com> writes:
>> I think this is simple, but I wasn't able
>> to find it anywhere: how can I tell emacs
>> I want to go to line x, column y?
> 
> Usually, x is the column, and y is the line.
> 
> (defun goto-xy (column line)
>   (interactive "nColumn: 
> nLine: ")
>   (let ((lines (count-lines (point-min) (point-max))))
>     (cond
>       ((< line 0)     (error "Cannot go before the beginning of buffer."))
>       ((< line lines) (beginning-of-buffer) (forward-line line))

I think you need to use (widen) above. Please see `goto-line' - and why
not use goto-line?

>       (t (end-of-buffer) (insert (make-string (- line lines) 10))))
>     (let ((columns (- (progn (end-of-line)       (point))
>                       (progn (beginning-of-line) (point)))))
>       (cond ((< column 0) (error "Cannot go before the beginning of line"))
>             ((< column columns) (forward-char column))
>             (t (end-of-line) (insert (make-string (- column columns) 32)))))))
> 
>