Unicode Asterisk (∗)

[bordaigorl]

Would be cool to have the unicode asterisk operator ∗ (U+2217) handled with the same nuance as the normal * symbol.
In particular, the same ligatures should be supported (e.g. -∗ and =∗).
It is for example used in maths for some operators, for example for the separating conjunction in separation logics, where the normal asterisk is reserved for normal multiplication.

[tonsky]

Should it look distinguishably different?

[bordaigorl]

In the other fonts that support it normal asterisk is pentagonal, while the asterisk operator is hexagonal. I think that would be a good way to keep them distinct but blend with the ligatures in a similar way.
[Maybe related #708 ]

[tonsky]

Ok, about ligatures. Currently * has those: ** *** /* */ <* *> <*>. Seems like none of those are related to the math usage you are talking about? -∗ and =∗ are not supported at the moment, where might those occur?

[RubenVerg]

Pretty sure they're talking about height variations Get Outlook for Android<https://aka.ms/ghei36>

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________________________________ From: Nikita Prokopov <[email protected]> Sent: Friday, October 9, 2020 5:15:49 PM To: tonsky/FiraCode <[email protected]> Cc: Subscribed <[email protected]> Subject: Re: [tonsky/FiraCode] Unicode Asterisk (∗) (#1134) Ok, about ligatures. Currently * has those: ** *** /* */ <* *> <*>. Seems like none of those are related to the math usage you are talking about? -∗ and =∗ are not supported at the moment, where might those occur? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Ftonsky%2FFiraCode%2Fissues%2F1134%23issuecomment-706240688&data=02%7C01%7C%7Cf0147510a7e845cbb3ee08d86c6634ba%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637378533503502264&sdata=PQ1qDO2NkTjl1sgCbNn0qIFQyW40KzCUMWB7RCUjFfM%3D&reserved=0>, or unsubscribe<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAMRJI3BP3ILHF76A2UCG6ATSJ4SKLANCNFSM4SKFHUOA&data=02%7C01%7C%7Cf0147510a7e845cbb3ee08d86c6634ba%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637378533503512271&sdata=ZLoOncsJ0qWp1VsaaLCyQL3%2BPV006%2BrK%2BGi5zDfzFdk%3D&reserved=0>.

[tonsky]

Will be in v6 as cv16

[bordaigorl]

-∗ and =∗ are not supported at the moment, where might those occur?

maybe I got it wrong by saying "ligatures", I just care that the asterisk looks vertically centered with - or =.
The -* is called "magic wand" in separation logics and is similar to "lollipop" -o in linear logic.
The variations with = and the symmetric *- and *-* are for derived connectives.
Thanks a lot for considering this proposal 😄 👍

[tonsky]

Ok I see. Will be handled in #655