Re: Search for selected tex

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Lorenzo Isella wrote:
> Dear All,
> I would like to be able to select some text with C-space and then look 
> for it inside the buffer.
> I found some functions online which I modified to get:
> 
> ;; a function to search the selected text
> 
> (defun my-search-forward (begin end)
>  (interactive (list (point) (mark)))
>  (let ((text (filter-buffer-substring begin end nil t)))
>    (goto-char (max begin end))
>    (let ((found-pos (search-forward text nil t)))
>      (if (not found-pos)
>          (progn
>            (goto-char begin)
>            (error "not found"))
>          (progn
>            (goto-char found-pos)
>            (set-mark (- found-pos (length text))))))))
> 
> 
> (define-key global-map [(control q )] 'my-search-forward)
> 
> 
> It is almost there but not yet...
> If I highlight some text, I can look for it with C-q, but once at the 
> end of the buffer, it stops searching (whereas I would like it to search 
> from the beginning of the buffer).
> If then I move to the beginning of the buffer, not everything above my 
> last position is selected, but also the function loses memory of what I 
> was looking for...
> Anybody can give me some help? Apologies if there is already and emacs 
> command for that, but my online search was not fruitful.
> Cheers


There is some code for similar wishes in

   http://www.emacswiki.org/cgi-bin/wiki/SearchAtPoint