linux-kernel - Re: [PATCH] nconfig: add search support

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Date:	Fri, 6 Aug 2010 22:22:10 +0300
From:	Nir Tzachar <nir.tzachar@...il.com>
To:	Sam Ravnborg <sam@...nborg.org>,
	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	mmarek@...e.cz, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nconfig: add search support

On Fri, Aug 6, 2010 at 4:54 PM, Sam Ravnborg <sam@...nborg.org> wrote:
>> >>
>> >> Searching: pressing '/' triggers search mode. nconfig performs a
>> >>            regular string compare, case insensitive, starting at
>> >
>> > I would say: simple string compare
>> > "regular" has no meaning (at least for me) there.
>
> pressing '/' triggers interactive search mode. nconfig search for the
> string in the menu prompts (no regex support).
>
> [Just a suggestion for a bt different wording]
>
>> > Maybe I should just stick to config symbol searches.  I don't think it's all
>> > that likely that people will know how each menu line text begins.
>> >
>> >
>>
>> We can replace strcasecmp with strcasestr. I agree it would be more useful.
>
> This is better.
>
>>
>> > As for the search UI, I'd rather that it be presented like the symbol search,
>> > in a box, instead of just a single line at the top of the screen.
>>
>> But then it is not interactive. I was aiming for something similar to
>> vim's search, where the search is matched as you type and the only
>> free terminal real-estate to display the match string was at the top
>> of the screen. I think such a minimal design is better than a
>> cumbersome text box which displays the search results afterwards (as
>> is symbol search), as the search is only intended for the currently
>> displayed menu and the user would usually just want to save the extra
>> typing of navigating to a specific menu item.
>
> It was introduced to replace the "hotkey" support, and as such is useful.
> If we want to search for content of all prompts then we should extend
> the symbols search to do so.
> Maybe we should just let it search for both symbols _and_ propmts.

There is a different alternative which slipped my mind, which can be
useful for Randy's use case: just use the single menu mode of nconfig
and then the search feature will give you the behavior you desire
(i.e., jumping to the globally matching prompt).

> If one search for HOTPLUG_CPU there is no hits in any propmts anyway.
> And if one search for "Pentium" there is no config symbol hits.

If such a search cannot return the menu context of the matching
symbol, there is no way for nconfig to jump to the matching menu. But
a different approach may be to add the symbol search to nconfig's
search, such that instead of just matching the prompt, nconfig will
also match the symbol.

Cheers,
Nir.

>        Sam
>
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