There are some decent object plugins on github. Look at vim-textobj-user for the parent plugin and then vim-textobj-indent for some useful ones based on indent level. I don't think there's anything that can handle haskell style arguments... although I think they are always either single identifiers or something wrapped in parens, so yiw and yib should handle it usually.

-John

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Message: 6
Date: Wed, 18 Apr 2012 13:23:00 +0900
From: Mait <mattengi@gmail.com>
Subject: [Haskell-beginners] Looking for vim text obejct plugin for
       haskell.
To: beginners@haskell.org
Message-ID:
       <CABQgwkXyHdad4_Btef10N9nFSWXBo9EKB-Yom3jfmp0cRTfJ_A@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Any good one there everybody knows except me? :)

--
Mait



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Message: 7
Date: Wed, 18 Apr 2012 13:34:20 +0900
From: Mait <mattengi@gmail.com>
Subject: Re: [Haskell-beginners] Looking for vim text obejct plugin
       for     haskell.
To: beginners@haskell.org
Message-ID:
       <CABQgwkWcfa9mL3fSb7RkTuRG8OXhjG3q2Qke=yvP9ZoZoo+mHw@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Especially looking for 'argument' object plugin.

function x:xs
          ^ <- cursor
ysaa) or ysia)

-> function (x:xs)

2012/4/18 Mait <mattengi@gmail.com>:
> Any good one there everybody knows except me? :)
>
> --
> Mait



--
Mait