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Date: Thu, 22 Jun 2023 21:43:40 +0000
From: Joseph Myers <joseph@codesourcery.com>
To: Paul Eggert <eggert@cs.ucla.edu>
CC: Carlos O'Donell <carlos@redhat.com>, Zack Weinberg <zack@owlfolio.org>,
	Yonggang Luo <luoyonggang@gmail.com>, GNU libc development
	<libc-alpha@sourceware.org>, Florian Weimer <fweimer@redhat.com>
Subject: Re: [PATCH v2 1/4] clang-format: should format with 2 space and do
 not usage tab
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On Wed, 21 Jun 2023, Paul Eggert wrote:

> On 2023-06-21 10:35, Joseph Myers wrote:
> > I don't think the convention of tabs for every eight columns is
> > *documented*  GNU style,
> 
> Actually, it's documented to be 8:
> 
> "Calculate column numbers assuming that space and all ASCII printing
> characters have equal width, and assuming tab stops every 8 columns."
> 
> https://www.gnu.org/prep/standards/html_node/Errors.html

I think that's about a documented convention for *reading* files - not a 
convention that when *writing* C source files you use tabs rather than 
spaces for a multiple of 8 leading blank columns.

-- 
Joseph S. Myers
joseph@codesourcery.com