Lennart Borgman (gmail) wrote:
> joakim@verona.se wrote:
>> It is difficult to remmeber all nice features of isearch.
>> Would it be possible to bind c-h to isearch-mode-help in isearch?
>>
>> This is done in isearch+.el by Drew Adams.
> 
> I think you are right. Beside what Drew have I have a patch for this 
> (which is part of my patches in the patched version of Emacs+EmacsW32).
> 
> However I have began to rethink how such help could be implemented. 
> There are other rather similar cases. In tabkey2.el (see EmacsWiki) I 
> also needed to implement some specific help. This is what I did there:
> 
> - When the user hits the help key (f1/C-h) a message saying:
> 
>   "Type a char for Emacs help. Or, wait for Tab completion help"
> 
> - If the response is k or c then specific keybindings valid during tab 
> completion is shown.
> 
> This way the user can have access to both a specific help and the usual 
> Emacs help.


I have attached a quick port of the idea above from tabkey2.el to 
isearch.el. There are two versions of help here:

- f1: is the suggestion above.
- C-h: just shows the isearch-mode help


In the f1 version I do not know what to do with the messages in the echo 
area after entering c or k (isearch is still active).