Em Thu, 6 May 2021 14:21:01 -0700
Randy Dunlap [off-list ref] escreveu:

On 5/6/21 11:08 AM, Matthew Wilcox wrote:

quoted

On Thu, May 06, 2021 at 10:57:53AM -0700, Randy Dunlap wrote:  

quoted

I have been going thru some of the Documentation/ files...

Why do several of the files begin with
(hex) ef bb bf    followed by "=================="
for a heading, instead of just "===================".
See e.g. Documentation/timers/no_hz.rst.  

No idea! It seems that the text editor I used on that time added
it for whatever reason.

quoted

00000000  ef bb bf 3d 3d 3d 3d 3d  3d 3d 3d 3d 3d 3d 3d 3d  |...=============|

ef bb bf is utf8 for 0b1111'111011'111111 = 0xFEFF which is the
https://en.wikipedia.org/wiki/Byte_order_mark

We should delete it.
  

OK, thanks, I have started on that.


Just another question: ("inquiring minds want to know")

Why is/are some docs using U+2217 '*' instead of ASCII '*'?
E.g., Documentation/block/cdrom-standard.rst.

The cdrom doc is a very special case: it was originally written in LaTeX.
I don't remember any other document in LaTeX inside the Kernel docs during
the conversions I made. See:
	e327cfcb2542 ("docs: cdrom-standard.tex: convert from LaTeX to ReST")

In order to convert it to .rst, I used some tool to first turn it
into plain text (probably LaTeX, but I don't remember anymore), and then
I manually reviewed the entire file, adding ReST tags where needed.

I didn't realize that utf-8 chars were used instead of normal ASCII chars,
as both appear the same when editing it[1].

[1] I use Fedora here. Fedora changed the default charset to utf-8 a long
    time ago.

Anyway, we should be able of get rid of weird UTF-8 chars from it with:

	$ iconv -f utf-8 -t ascii//TRANSLIT Documentation/cdrom/cdrom-standard.rst

I'll prepare a patch fixing it. Some care should be taken, however, as
it has two places where UTF-8 chars should be used[2].

[2] There are two German person names that use UTF-8 chars:
    - 'o' + umlat;
    - a LATIN SMALL LETTER SHARP S (Eszett)

Thanks,
Mauro