C-s and delete under Windows

C-s and delete under Windows

[Ulrich Scholz]

Hi, under Linux, deleting while searching (C-s, type something, and
then press delete) removes letters from the search string and
continues to search.  Under Windows, the behavior is different: it
ends the search and deletes characters from my file.

How can I implement the Linux behavior under Windows?

Maybe the problem is my .emacs on Windows. I use the following:

(global-set-key [backspace] 'backward-delete-char-untabify)

Re: C-s and delete under Windows

[Lennart Borgman]

On Mon, Mar 30, 2009 at 2:59 PM, Ulrich Scholz <d7@thispla.net> wrote:
> Hi, under Linux, deleting while searching (C-s, type something, and
> then press delete) removes letters from the search string and
> continues to search.  Under Windows, the behavior is different: it
> ends the search and deletes characters from my file.
>
> How can I implement the Linux behavior under Windows?
>
> Maybe the problem is my .emacs on Windows. I use the following:
>
> (global-set-key [backspace] 'backward-delete-char-untabify)

Try starting from

  emacs -Q

I have not seen this problem (I am using windows).

Re: C-s and delete under Windows

[d7]

On 30 Mrz., 17:22, Lennart Borgman <lennart.borg...@gmail.com> wrote:
> Try starting from
>
>   emacs -Q
>
> I have not seen this problem (I am using windows).

I'm not quite sure I understand you.  Is "-Q" a command line option?
I'm starting emacs via the Windows menu.

Ulrich

Re: C-s and delete under Windows

[B. T. Raven]

Ulrich Scholz wrote:
> Hi, under Linux, deleting while searching (C-s, type something, and
> then press delete) removes letters from the search string and
> continues to search.  Under Windows, the behavior is different: it
> ends the search and deletes characters from my file.
> 
> How can I implement the Linux behavior under Windows?
> 
> Maybe the problem is my .emacs on Windows. I use the following:
> 
> (global-set-key [backspace] 'backward-delete-char-untabify)

That might be the culprit. Do your delete and backspace keys work the 
same? Are they bound to same function? I think that backspace should 
remove the last character from the isearch string and leave you in the 
search routine. Delete should erase character right after instance of 
seach string at cursor and break out of search. At least that's how my 
Emacs (nt5.0) has always worked. If you just want to use C-s or C-r for 
cursor movement you can do C-space at any point to break out of isearch.

Re: C-s and delete under Windows

[Lennart Borgman]

On Mon, Mar 30, 2009 at 5:40 PM,  <d7@thispla.net> wrote:
> On 30 Mrz., 17:22, Lennart Borgman <lennart.borg...@gmail.com> wrote:
>> Try starting from
>>
>>   emacs -Q
>>
>> I have not seen this problem (I am using windows).
>
> I'm not quite sure I understand you.  Is "-Q" a command line option?
> I'm starting emacs via the Windows menu.

Yes, just run the executable from a command window.

Re: C-s and delete under Windows

[Nikolaj Schumacher]

Ulrich Scholz <d7@thispla.net> wrote:

> Maybe the problem is my .emacs on Windows. I use the following:
>
> (global-set-key [backspace] 'backward-delete-char-untabify)

Yes, it is.  Because globally setting backspace, will override the
meaning in `isearch-mode-map'.  Try:

(define-key isearch-mode-map [backspace] 'isearch-delete-char)


regards,
Nikolaj Schumacher

Re: C-s and delete under Windows

[Lennart Borgman]

On Mon, Mar 30, 2009 at 10:14 PM, Nikolaj Schumacher <me@nschum.de> wrote:
> Ulrich Scholz <d7@thispla.net> wrote:
>
>> Maybe the problem is my .emacs on Windows. I use the following:
>>
>> (global-set-key [backspace] 'backward-delete-char-untabify)
>
> Yes, it is.  Because globally setting backspace, will override the
> meaning in `isearch-mode-map'.  Try:
>
> (define-key isearch-mode-map [backspace] 'isearch-delete-char)


Why does setting it globally override the setting in isearch-mode-map?

Re: C-s and delete under Windows

[Nikolaj Schumacher]

Lennart Borgman <lennart.borgman@gmail.com> wrote:

> On Mon, Mar 30, 2009 at 10:14 PM, Nikolaj Schumacher <me@nschum.de> wrote:
>>> (global-set-key [backspace] 'backward-delete-char-untabify)
>>
>> Yes, it is.  Because globally setting backspace, will override the
>> meaning in `isearch-mode-map'.  Try:
>>
>> (define-key isearch-mode-map [backspace] 'isearch-delete-char)
>
> Why does setting it globally override the setting in isearch-mode-map?

IIRC:
Backspace is translated to DEL by default.
DEL is bound to `isearch-delete-char' in `isearch-mode-map', but
backspace isn't bound there at all.  Binding backspace overrides the
translation, which is responsible for the meaning in `isearch-mode-map'.


regards,
Nikolaj Schumacher

Re: C-s and delete under Windows

[Lennart Borgman]

On Mon, Mar 30, 2009 at 10:56 PM, Nikolaj Schumacher <me@nschum.de> wrote:
> Lennart Borgman <lennart.borgman@gmail.com> wrote:
>
>> On Mon, Mar 30, 2009 at 10:14 PM, Nikolaj Schumacher <me@nschum.de> wrote:
>>>> (global-set-key [backspace] 'backward-delete-char-untabify)
>>>
>>> Yes, it is.  Because globally setting backspace, will override the
>>> meaning in `isearch-mode-map'.  Try:
>>>
>>> (define-key isearch-mode-map [backspace] 'isearch-delete-char)
>>
>> Why does setting it globally override the setting in isearch-mode-map?
>
> IIRC:
> Backspace is translated to DEL by default.
> DEL is bound to `isearch-delete-char' in `isearch-mode-map', but
> backspace isn't bound there at all.  Binding backspace overrides the
> translation, which is responsible for the meaning in `isearch-mode-map'.

Ah, I see. Thanks.

But ... this is so confusing so I think that it would be good if the
user gets a warning ... somewhere ...

Re: C-s and delete under Windows

[d7]

On 30 Mrz., 22:14, Nikolaj Schumacher <m...@nschum.de> wrote:
> Ulrich Scholz <d...@thispla.net> wrote:
> > Maybe the problem is my .emacs on Windows. I use the following:
>
> > (global-set-key [backspace] 'backward-delete-char-untabify)
>
> Yes, it is.  Because globally setting backspace, will override the
> meaning in `isearch-mode-map'.  Try:
>
> (define-key isearch-mode-map [backspace] 'isearch-delete-char)
>
> regards,
> Nikolaj Schumacher

Thanks, that did it.

Best regards,

Ulrich