Minimal calculator function for tofi

[766F6964]

I would like to suggest adding a minimal calculator function to tofi.

I understand that the main purpouse of tofi is to be a minimal app launcher.
But I believe having an intermediate calculation feature for basic operations would be a very handy addition.

Sometimes, one just wants to quickly sum up 2 or 3 numbers. Of course they could just open a calculator application and type them in, but that would be much slower.
MacOS Finder has a similar feature, I believe?

For instance, typing a query like (4+10)*2 could display the result 28, perhaps highlighted slighlty differently to the right of the query.
I think such a feature wouldn’t detract from tofi's main function as an app launcher.
I think it would make it better. Also, no need to do anything super fancy here, the only basic operations I think that would make sense to support are:

• Addition +
• Multiplication *
• Subtraction -
• Division /
• Power **
• Parenthesis for precedence()

Any calculation more complex than that shouldn't be part of tofi and require launching a dedicated calculator app.
I think it would also make sense to not have this feature by default by hide it behind a cli flag, e.g. --calc, or something like that.

Thoughts?

[machitgarha]

This is nice to have, but there's already an issue opened for this: #172