[NTG-context] Re: Fira Math: goodies needed?

[Mikael Sundqvist <mickep@gmail.com>]

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Hi Leah,

On Sat, Jul 22, 2023 at 12:19 AM Leah Neukirchen <leah@vuxu.org> wrote:
>
> Hi,
>
> I'm trying to use Fira Math (https://github.com/firamath/firamath).
>
> But this small example yields both limits on the same horizontal axis,
> i.e. the 0 is far away from the integral sign:
>
>
> \definefontfamily [mainface] [mm] [Fira Math]
> \setupbodyfont    [mainface]
>
> \starttext
> \startformula
>   \int_0^1 e^x
> \stopformula
> \stoptext
>
>
> Meanwhile, when I use LaTeX, the 0 is moved to the left and close to
> the integral sign:
>
>
> \documentclass{article}
> \usepackage{amsmath}
> \usepackage[mathrm=sym]{unicode-math}
> \setmathfont{Fira Math}
>
> \begin{document}
> \[
>   \int_0^1 e^x
> \]
> \end{document}
>
>
> In both cases
> /opt/texlive/2023/texmf-dist/fonts/opentype/public/firamath/FiraMath-Regular.otf
> is used...
>

As far as I remember, we did not consider firamath usable last time we
tested. Is it OK?

Attached you find a very basic goodie file that 1) set the
primeshiftup parameter and 2) enables presets.moveintegrals. Also add

\definefontfeature[default][default][goodies=fira-math.lfg]

to use it.

/Mikael

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local common  = fonts.goodies.load("common-math.lfg")
local presets = common.mathematics.tweaks.presets

return {
    name = "fira-math",
    version = "0.10",
    comment = "Goodies that complement fira.",
    author = "Hans Hagen & Mikael Sundqvist",
    copyright = "ConTeXt development team",
    mathematics = {
        parameters = {
            PrimeShiftUp                    =  "0.7*SuperscriptShiftUp",
        },
        tweaks = {
            aftercopying = {
                presets.moveintegrals        { },
                presets.moveitalics          { correct = true },
                presets.wipeanchors          { },
                presets.wipeitalics          { },
            },
        },
    },
}

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