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Re: better grammar with $#

X-seq: zsh-users 28285
From: Philippe Troin <phil@xxxxxxxx>
To: Ray Andrews <rayandrews@xxxxxxxxxxx>, Zsh Users <zsh-users@xxxxxxx>
Subject: Re: better grammar with $#
Date: Sun, 30 Oct 2022 10:21:47 -0700
Archived-at: <https://zsh.org/users/28285>
In-reply-to: <a99ee704-c0b3-c0b3-7cf7-337412a83082@eastlink.ca>
List-id: <zsh-users.zsh.org>
References: <a99ee704-c0b3-c0b3-7cf7-337412a83082@eastlink.ca>

On Sun, 2022-10-30 at 07:16 -0700, Ray Andrews wrote:

    output=$( eval "$@" ) # Input here is a 'find' command outputting a list of files.
    tmp=( ${(f)output} )   # Count lines not characters.
    linecount=$#tmp
... it seems clumsy to create 'tmp' just to count lines, can that be a bit more streamlined? And is it lines or words there? The output is filenames so words=lines in this case but maybe not in other cases so I'd like to be sure to have a count of lines. Easy to get one's splitting wrong.

How about:

linecount=${#${(f)"$(eval "$@")"}}

Phil.

References:
- better grammar with $#
  - From: Ray Andrews

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