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(z) word splitting on one word

X-seq: zsh-users 28114
From: Julian Prein <druckdev@xxxxxxxxxxxxxx>
To: "zsh-users@xxxxxxx" <zsh-users@xxxxxxx>
Subject: (z) word splitting on one word
Date: Thu, 22 Sep 2022 13:44:06 +0000
Archived-at: <https://zsh.org/users/28114>
Feedback-id: 54984029:user:proton
List-id: <zsh-users.zsh.org>

Hi!

I am trying to get the last word of LBUFFER.

What I did previously was:

    ${${(z)LBUFFER}[-1]}

This worked flawlessly until I noticed today that it misbehaves if LBUFFER
contains only one word. In this case it seems like `[-1]` acts on a scalar, as
it expands to the last character instead of LBUFFER as I would expect.

Is this expected behaviour?

I now work around it by prepending LBUFFER with a dummy word so that it always
has at least two words (I know that it is not empty). But this feels very hacky.

Do you know of a better way?

Julian

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Follow-Ups:
- Re: (z) word splitting on one word
  - From: Mikael Magnusson

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