[NTG-context] Re: \em issue in MkXL (2024.03.05 11:26)

[Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>]

Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 19:39:
> On 3/8/24 19:09, Wolfgang Schuster wrote:
>> Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 18:50:
>>> [...]
>>> LMTX gets b, c and d in slanted form.
>>>
>>> LuaTeX gets only b and c in slanted form.
>> [...]
>> I get b and d in italic which is the expected output.
> 
> Sorry, my LuaTeX is getting slanted b and d ("c" was my typo).
> 
> But I see what was causing my issue (line from
> ~/texmf/texmf-local/cont-loc.mkxl):
> 
>    \enableexperiments[fonts.compact]
> 
> Which seeems weird to me. Or at least, I thought I read that Hans
> enabled it by default in LMTX.

AFAIR Hans uses the setting in his own documents.

> Then my question is whether this was caused by simply enabling compact
> fonts or by doing it twice.

The results happen when you use compact mode and is a result of 
\glyphslant which keeps the value of the italic style even when you 
switch back to the upright style.

\enableexperiments[fonts.compact]

\definefontfamily[mainface][rm][TeX Gyre Termes]
   [it={style:regular, features:{default,slanted}},
    sl={style:regular, features:{default,slanted}}]

\setupbodyfont[mainface]

\starttext
\tf h\showcurrentfont[]\crlf
\it h\showcurrentfont[]\crlf
%\glyphslant\zerocount
\tf h\showcurrentfont[]\crlf
\it h\showcurrentfont[]
\stoptext

Wolfgang
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