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From: "Bart Schaefer" <schaefer@candle.brasslantern.com>
Message-Id: <1010525151112.ZM14441@candle.brasslantern.com>
Date: Fri, 25 May 2001 15:11:11 +0000
In-Reply-To: <E15305g-0002SP-00@sevilla>
Comments: In reply to Cesar Crusius <crusius@barcelonadesign.com>
        "compctl -y problem." (May 24, 11:44am)
References: <E15305g-0002SP-00@sevilla>
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To: zsh-workers@sunsite.dk
Subject: Re: compctl -y problem.
Cc: Cesar Crusius <crusius@barcelonadesign.com>
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On May 24, 11:44am, Cesar Crusius wrote:
} Subject: compctl -y problem.
}
} compctl -K project_changes -y '$change_descriptions' aecd
} 
} When I press <Tab> after aecd, the table shows as expected, but the
} cursor does not return to where it should. It goes to one line below
} where I originally typed <Tab>.

I mocked up a test case for this and there seems to be something pretty
badly wrong with the -y option.

Here's the test case:

  text80 () {
    local x=''
    repeat 8 x=1234567890$x
    text=$x$'\n'$text
    reply=($((++count))x80 $last)
    last=($reply)
  }
  text70 () {
    local x=''
    repeat 7 x=1234567890$x
    text=$x$'\n'$text
    reply=($((++count))x80 $last)
    last=($reply)
  }
  array () {
    local x=''
    repeat 8 x=1234567890$x
    text=($x $text)
    reply=($((++count))x80 $last)
    last=($reply)
  }

  compctl -K text80 -y '$text' try80
  compctl -K text70 -y '$text' try70
  compctl -K array -y '$text' tryA

Before each test, initialze the globals:

  count=0 text='' last=()

My results were as follows:

Completion after `try80' puts the cursor N-1 lines ABOVE the correct line,
where N is the number of lines in $text.

Completion after `try70' puts the cursor N-1 lines BELOW the correct line.

Completion after `tryA' puts the shell into an infinite loop; it has to
be killed with `kill -9' from another terminal.

I know Sven won't be thrilled about being asked to fix anything in the
old compctl code ... perhaps we should just remove the `-y' option, as
it's new since 3.0 anyway, and document the correct way to achieve the
same effect by using the new completion system (which, incidentally, I
don't know how to do ... `compadd -d' doesn't quite cut it).

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net