linux-kernel - Re: [PATCH] docs: process: changes.rst: Escape --version to fix Sphinx output

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Message-ID: <20200224191248.GP24185@bombadil.infradead.org>
Date:   Mon, 24 Feb 2020 11:12:48 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Jonathan Corbet <corbet@....net>
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        linux-doc@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Arnd Bergmann <arnd@...db.de>,
        "Chang S. Bae" <chang.seok.bae@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] docs: process: changes.rst: Escape --version to fix
 Sphinx output

On Mon, Feb 24, 2020 at 11:58:51AM -0700, Jonathan Corbet wrote:
> On Mon, 24 Feb 2020 10:52:27 -0800
> Matthew Wilcox <willy@...radead.org> wrote:
> 
> > On Mon, Feb 24, 2020 at 07:47:19PM +0100, Jonathan Neuschäfer wrote:
> > > On Mon, Feb 24, 2020 at 11:08:15AM -0700, Jonathan Corbet wrote:  
> > > > On Sun, 23 Feb 2020 23:22:27 +0100
> > > > Jonathan Neuschäfer <j.neuschaefer@....net> wrote:
> > > >   
> > > > > Without double-backticks, Sphinx wrongly turns "--version" into
> > > > > "–version" with a Unicode EN DASH (U+2013), that is visually easy to
> > > > > confuse with a single ASCII dash.
> > > > > 
> > > > > Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>  
> > > > 
> > > > This certainly seems worth addressing.  But I would *really* rather find
> > > > a way to tell Sphinx not to do that rather than making all of these
> > > > tweaks - which we will certainly find ourselves having to do over and
> > > > over again.  I can try to look into that in a bit, but if somebody were
> > > > to beat me to it ... :)  
> > > 
> > > This seems to do the trick:
> > > 
> > > diff --git a/Documentation/conf.py b/Documentation/conf.py
> > > index 3c7bdf4cd31f..8f2a7ae95184 100644
> > > --- a/Documentation/conf.py
> > > +++ b/Documentation/conf.py
> > > @@ -587,6 +587,9 @@ pdf_documents = [
> > >  kerneldoc_bin = '../scripts/kernel-doc'
> > >  kerneldoc_srctree = '..'
> > > 
> > > +# Render -- as two dashes
> > > +smartquotes = False  
> > 
> > I think what Jon was looking for was the ability to selectively turn
> > smartquotes off for a section and then reenable it?
> 
> No that's not what I was thinking, actually.  Unless somebody can come up
> with a good reason to the contrary, just disabling that behavior globally
> strikes me as the right thing to do.

Well, sometimes -- when the time is right -- I like to use en-dashes.
It's probably no great loss, though.

grep finds me these interesting examples:

Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst:Tree RCU's grace--period memory-ordering guarantees rely most heavily on
Documentation/accounting/psi.rst:scarcity aids users in sizing workloads to hardware--or provisioning
Documentation/admin-guide/acpi/cppc_sysfs.rst:  -r--r--r-- 1 root root 65536 Mar  5 19:38 feedback_ctrs
Documentation/admin-guide/mm/hugetlbpage.rst:task that modifies ``nr_hugepages``. The default for the allowed nodes--when the
Documentation/block/null_blk.rst:home_node=[0--nr_nodes]: Default: NUMA_NO_NODE
Documentation/admin-guide/svga.rst::Copyright: |copy| 1995--1999 Martin Mares, <mj@....cz>
Documentation/media/uapi/v4l/pixfmt-srggb10-ipu3.rst:        G\ :sub:`0108high`\ (bits 1--0)

(in all, 368 lines, but they're not all in .rst files)