Re: [small bug] Surprising "Did you mean this?"

From: Andreas Ericsson <ae@op5.se>
Date: Nov 18, 2008, 18:29 UTC
Message-ID: <492309A4.1050702@op5.se>
In-Reply-To: <vpqod0dezh9.fsf@bauges.imag.fr>

Matthieu Moy wrote:

Show 14 quoted lines

> Hi,
> 
> The following is quite surprising:
> 
>   $ git tags 
>   git: 'tags' is not a git-command. See 'git --help'.
>   
>   Did you mean this?
>           status
>   
> I would have expected git to propose me "tag" (1 character removal),
> while "status" is quite far from "tags" (remove g, add u, add another
> t, shuffle and you're there).
>

That's the Deveraux(?) addendum in action. shuffle+replace = 3 in the distance score, while remove = 4 (I think).

Typos by users accustomed to computers are more often of the shuffle (haed vs head) or replace (hwad vs head) kind, while those less accustomed often fumble more and press more keys. For this case though, I agree it gives a rather strange result.

-- 
Andreas Ericsson                   andreas.ericsson@op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231