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bug#49716: no -print0 for ls?

From: Pádraig Brady
Subject: bug#49716: no -print0 for ls?
Date: Wed, 28 Jul 2021 12:57:38 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:84.0) Gecko/20100101 Thunderbird/84.0

On 28/07/2021 02:14, Paul Eggert wrote:
On 7/26/21 8:00 AM, Pádraig Brady wrote:

So I'd have a slight preference for --zero.

Also what about having --zero imply:
    --quoting-style=literal --show-control-chars --format=single-column
That seems like a fine shortcut given that would be correct in the vast
majority of cases,
and that the need for the above may not be obvious to users.

Also a small point; should --dired disable --null as it may then be non

Thanks, all good suggestions. For --dired vs --zero I thought it better
simply to prohibit the combination since neither should be in 'ls' shell
aliases, and prohibiting means we can add it later if we like. I
installed the attached patches to do this (plus the other stuff I
mentioned in my reply to Berny).

The first patch is a cleanup because I had a bit of trouble following
the forest of 'if's inside of ls.c's decode_switches function and I
thought it better to avoid unnecessary syscalls while I was at it.

The second patch does the real work.

That all looks great.

I see --zero implies --format=single-column, but allows --format=long.
That's the right default, but also most flexible.

I'll apply the attached later to augment/document the test
with the various supported option combinations.


Attachment: ls--zero-tests.patch
Description: Text Data

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