Re: [NTG-context] \setupmathematics with stylealternative not working

24 Feb 2019

      On Sat, Feb 23, 2019 at 8:17 AM Mikael P. Sundqvist  wrote:
...
On Fri, Feb 22, 2019 at 7:25 PM Hans Hagen  wrote:
...
...
I can confirm.  My workaround which predates the stylealternative
mechanism also stopped working, so there must be an issue on the level
of font feature selection.
\definefontfeature [math-text]         [math-text]         [ss04=yes]
\definefontfeature [math-script]       [math-script]       [ss04=yes]
\definefontfeature [math-scriptscript] [math-scriptscript] [ss04=yes]
\setupbodyfont[lucidaot]
\starttext
\startTEXpage[offset=3bp]
$\mathcal A$
\stopTEXpage
\stoptext
On 2/22/2019 9:24 AM, Henri Menke wrote:
that is a nasty one ... in font-fil.mkvi : we cannot use an edef as that
makes features get lost
\def\font_basics_get_font_parameter_nop#key=#value,%
   {\if]#key%
      \font_basics_get_font_parameter_nop_finish
    \else
      \expandafter\normaldef\csname p_#key\endcsname{#value}%  % no edef
as we need to keep \mathsizesuffix
      \expandafter\font_basics_get_font_parameter_nop
    \fi}
\def\font_basics_get_font_parameter_yes#key=#value,%
   {\if]#key%
      \font_basics_get_font_parameter_yes_finish
    \else
      \expandafter\normaldef\csname p_#key\endcsname{#value}%  % no edef
as we need to keep \mathsizesuffix
      \expandafter\font_basics_get_font_parameter_yes
    \fi}
but even then, the official way to trigger such features is
\setupmathematics[stylealternative=calligraphic]
Works! Thanks! It is in the details... :)
/Mikael
I just realized that there is still some problem with the stylealternative:

With the document

%% TEST 1
\setupbodyfont[lucidaot]
\setupmathematics[
stylealternative={calligraphic},
]
\starttext
$x+\mathcal A$
\stoptext
%%%

I get both the calligraphic AND the italic keys enabled, even though
the italic key should not be set. However, with the test file

%%% TEST 2
\setupbodyfont[lucidaot]
\setupmathematics[
stylealternative={italic},
]
\starttext
$x+\mathcal A$
\stoptext
%%%

I do not get any of them enabled. In particular the italic key is not
enabled, which I assume it should be.

/Mikael