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

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On Mon, Feb 24, 2020 at 01:08:13PM -0800, Randy Dunlap wrote:
> On 2/24/20 11:12 AM, Matthew Wilcox wrote:
> > 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@xxxxxxxxxxxxx> 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@xxxxxxx> 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@xxxxxxx>  
> >>>>>
> >>>>> 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@xxxxxx>
> > 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)
> > 
> 
> Not trying to be contrary, but I would prefer to keep .rst files as much
> ASCII as possible.

I don't think anybody is arguing otherwise.  The question is whether
minusminus should be left as a pair of minus signs or whether it should
be converted into an en-dash.



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