Re: [PATCH 00/53] Get rid of UTF-8 chars that can be mapped as ASCII
From: Mauro Carvalho Chehab
Date: Tue May 11 2021 - 05:37:44 EST
Em Mon, 10 May 2021 15:22:02 -0400
"Theodore Ts'o" <tytso@xxxxxxx> escreveu:
> On Mon, May 10, 2021 at 02:49:44PM +0100, David Woodhouse wrote:
> > On Mon, 2021-05-10 at 13:55 +0200, Mauro Carvalho Chehab wrote:
> > > This patch series is doing conversion only when using ASCII makes
> > > more sense than using UTF-8.
> > >
> > > See, a number of converted documents ended with weird characters
> > > like ZERO WIDTH NO-BREAK SPACE (U+FEFF) character. This specific
> > > character doesn't do any good.
> > >
> > > Others use NO-BREAK SPACE (U+A0) instead of 0x20. Harmless, until
> > > someone tries to use grep.
> > Replacing those makes sense. But replacing emdashes — which are a
> > distinct character that has no direct replacement in ASCII and which
> > people do *deliberately* use instead of hyphen-minus — does not.
> I regularly use --- for em-dashes and -- for en-dashes. Markdown will
> automatically translate 3 ASCII hypens to em-dashes, and 2 ASCII
> hyphens to en-dashes. It's much, much easier for me to type 2 or 3
> hypens into my text editor of choice than trying to enter the UTF-8
Yeah, typing those UTF-8 chars are a lot harder than typing -- and ---
on several text editors ;-)
Here, I only type UTF-8 chars for accents (my US-layout keyboards are
all set to US international, so typing those are easy).
> If we can make sphinx do this translation, maybe that's
> the best way of dealing with these two characters?
Sphinx already does that by default, using smartquotes:
Those are the conversions that are done there:
- Straight quotes (" and ') turned into "curly" quote characters;
- dashes (-- and ---) turned into en- and em-dash entities;
- three consecutive dots (... or . . .) turned into an ellipsis char.
So, we can simply use single/double commas, hyphens and dots for
curly commas and ellipses.
 There's a way to disable it at conf.py, but at the Kernel this is
kept on its default: to automatically do such conversions.