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bug#18506: stty dsusp undef fails.

From: Pádraig Brady
Subject: bug#18506: stty dsusp undef fails.
Date: Fri, 19 Sep 2014 23:41:56 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2

On 09/19/2014 07:45 PM, Bernhard Voelker wrote:
> On 09/19/2014 05:19 PM, Pádraig Brady wrote:
>> From be1e555db9cfd7e82a0a26e1a612a65ebe93d789 Mon Sep 17 00:00:00 2001
>> From: =?UTF-8?q?P=C3=A1draig=20Brady?= <address@hidden>
>> Date: Fri, 19 Sep 2014 16:15:04 +0100
>> Subject: [PATCH] stty: only list supported options in --help and man pages
>> * src/stty.c (usage): Exclude unsupported options from --help,
>> which only impacts the "dsusp" option on GNU/Linux.
> that one, too:
> -* [\-]cdtrdsr
> -enable DTR/DSR handshaking
> -.TP

Oh right, I was comparing against an older stty without that support.

> A slightly different idea: as this can only happen for non-POSIX
> options, we could change the '*' symbol to e.g. 'S' ("supported
> non-POSIX option) and 'U' (unsupported non-POSIX option).

I did think about that, but err'd on side of
less information, rather than more.

> The cleanest solution probably would be to distinguish between
> distinguish "invalid argument" from "not supported" errors, as you
> aleady said. I'm not sure if it's worthwhile.

I thought of that too, but thought the doc changes enough.

I'll sleep on this one before pushing.

thanks for all the reviews!


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