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

[Randy Dunlap <rdunlap@infradead.org>]

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@infradead.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@gmx.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@gmx.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@ucw.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)
> 

Not trying to be contrary, but I would prefer to keep .rst files as much
ASCII as possible.

-- 
~Randy