El lun., 31 de ago. de 2020 a la(s) 15:21, Hans = Hagen (j.hagen@xs4all.nl) escribi= =C3=B3:

Hi,

In order to keep the 'context is good for toy math' reputation up t= o
date, in lmtx we can now have proper discretionaries in math and math in discretionaries. The kind of things no one asks for but they might be
useful in educational settings.

Here are some examples ():

\starttext

\showframe

\enabletrackers[math.toysymbol]

\definemathtoysymbol[Plus] [bin][+]
\definemathtoysymbol[Minus][bin][-]
\definemathtoysymbol[Equal][rel][=3D]

$\dorecurse{199} {
=C2=A0 =C2=A0 =C2=A0x_{#1} \ifodd#1\relax\Plus\else\Minus\fi
} x_{200} \Equal n$

\blank

\dorecurse{10} {
=C2=A0 =C2=A0 =C2=A0test \discretionary
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{\darkred=C2=A0 =C2=A0hel=C2=A0 $\sqrt{y}= $ lo}
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{\darkgreen good $\sqrt{z}$ bye}
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{\darkblue=C2=A0 wel=C2=A0 $\sqrt{x}$ com= e} test
}

\blank

\dorecurse{10} {test me #1
=C2=A0 =C2=A0 =C2=A0$x + 2x \discretionary class 2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{$+ \, \cdots $}
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{$=C2=A0 =C2=A0 =C2=A0\cdots \, +$}
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0{$+ \, \cdots \, +$} nx$ test
}

\stoptext

You might be able to guess from this code what is supposed to happen.
I'll play a bit more with this later (assuming that it's somehow useful). We could predefine a bunch. As usual there might be issues but I'll sort them out when we run into them (it's a non critical featu= re
with not much impact).

Hans

(who must not forget to document it somewhere)

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