Math Input (MathEditor port)

[charlesroddie]

Just as CSharpMath started as a port of iosMath, MathEditor, which builds on iosMath, could be ported to add editing support to CSharpMath.

@verybadcat can you keep us updated about your thoughts on doing this port? Thanks!

[verybadcat]

As we discussed on the phone, it's not likely a priority for me at the moment.

[Happypig375]

I'm targeting this for 0.2.0 for now.

[Happypig375]

I'm afraid that this will take longer than expected. Can you please allow a few more days?

[Happypig375]

0.2.0-alpha has been put on NuGet.
Touch response (navigation) is still being worked on.
The main property is CSharpMath.Forms.EditableMathView.Default.

[charlesroddie]

Great! Is this ready to test? We are a bit overloaded here for the next few days but can test soon.

[Happypig375]

0.2.0-alpha2 is ready!
Still bugfixes to go though.

[Happypig375]

0.2.0-alpha3 brings an editor which left/right buttons are usable.
Please test~

[Happypig375]

I intend to wrap this up very soon. Touch insertion will be pushed to the F# version. Is there an API shape that you would like to be seen?

[charlesroddie]

Gif looks good @Happypig375 . Could we have a normal cursor?

This is the API that I would like:

• A view with Skiasharp dependency only (not Forms).
• Properties and instance methods on the input View for inserts/commands.
• A property for getting latex (perhaps to be replaced with a structural version in the future F# version).
• A method for setting the cursor position based on a coordinate (understood that this is pushed to the F# version).

Inserts/commands needed:

• Left, right, up, down, backspace, clear
• left bracket "(", right bracket ")", 0-9, decimal place, divide, times (cdot), minus, plus
• Characters a-z, A-Z, greek
• Functions including sin, cos, tan ,sin^-1, cos^-1, tan^-1, power, sqrt, nth root, modulus ("| |"), sinh, cosh, tanh, exp ("e^"), ln, log, "!".

Some intelligence will be needed eventually about combining inputs. E.g. if the user types "s" then "i" then "n" it should get combined into the sin function. (To accomodate keyboard usage.) MathQuill is a good reference for good behavior.

Does this conform to what you had in mind?