This is a new take on c8e2c17a that was reverted at da67bde61a due to entities no more recognised by the browsers. Corresponding thread on the mailing list: https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg213179.html
This patch is a huge cleanup overall, by removing the distinction between HTML and XML entities (the latter arrived due to the DocBook support).
In InsetListingParams, I also changed the mechanism that relied on " to use an XML entity to be consistent with the rest of the code, mostly in case someone looks for HTML entities and wonders why they are still there.
Apostrophes were being converted inside code-like areas, like LilyPond insets. This patch fixes tests that started to fail:
Processing `./60/lily-95ee389a.ly'
Parsing...
././60/lily-95ee389a.ly:7:12: error: undefined character or shorthand: &
\relative c
’’ { g a b c}
This is similar to what LaTeX does in its output.
See the (long) discussion in ticket #11244. Port of ad3e6c69b2 for DocBook.
This patch requires delaying entire strings instead of just characters, so that the DocBook code path can be as similar to the XHTML one as possible.
From Kornel:
> /usr2/src/lyx/lyx-git/src/Paragraph.cpp:1931:1: warning: control reaches end of non-void
> function [-Wreturn-type]
>
> This is with gcc-12, compiled in debug mode.
To handle this case, we use '\lyxdollar' string instead.
Also try to handle '\n' in the docstring directly instead in the
string already converted to utf8.
(The utf8-version is still there, but commented out)
Using the new inline statements
find_effective(), find_with_non_output(), find_with_deleted(),
find_set_feature(), find_add_feature() and find_clean_features()
makes the code a slightly better readable.
An inset that resets its font (like Footnote) does not care at all
about enclosing font. Therefore the real starting point is the class
default font. This avoid cases where the footnote contents is forced
to \normalsize.
It turns out that the Greyedout note inset, did inherit font but was
declared as not doing it. This commmit changes the definition by
adding \normalfont\normalsize so that no inheritance happens.
Note that actually \normalfont resets everything but the font size.
This does not matter for footnote (which has its own font size) and
greyedout (which is fixed now), but may matter elsewhere. Also, I do
not know what the situation with HTML is.
