Numbat based text processor

[liborw]

What I'm missing from calculators such as Numbat, fend, kalker and so on is that they are just calculators, and calculators lack persistence. Even though you can save repl, it will save just the input not the result, which makers in useless withou the program to execute it. I do a lot of calculation when doing electronics, which include lot of perameter tunig, and I also want to include the calculations in a documentation.

There is a math text editor for MacOS called Calca which is great and actually exactly what I woul like to have, you write the expressions and the tune the parametes and the results are changed in realtime, but I'm not going back to mac, and also I use (neo)vim most of the time and having to use another editor for calculations does not seems right.

So long time ago I wrote equals, a neovim plugin that evaluates python expression inside the buffer and inserts the result after '#=' which was close and worked great, but using units in python is not easy, so usually I did not use them at all.

But now I discovered numbat and other similar calculators (I chose numbat because I like the syntax, expandability and also the name), which would be ideal as an math engine for a text editor plugin. My idea is to make a program that will take a text file, markdown for example, filter out text, evaluate numbat code and inserts the result after '#=' or similar. So here is a proof of concept numbat-proc.

[sharkdp]

What I'm missing from calculators such as Numbat, fend, kalker and so on is that they are just calculators, and calculators lack persistence. Even though you can save repl, it will save just the input not the result, which makers in useless withou the program to execute it.

It looks like you might be interested in:

• the "editor" approach being discussed in Notepad/soulver-like interface for Numbat? #536, and the prototype here: https://numbat.dev/editor.html
• the "notebook" approach with a prototype in Jupyter kernel (WIP) #147

They do not integrate into neovim, of course, but seem similar in spirit.

So long time ago I wrote equals, a neovim plugin that evaluates python expression inside the buffer and inserts the result after '#=' which was close and worked great, but using units in python is not easy, so usually I did not use them at all.

My idea is to make a program that will take a text file, markdown for example, filter out text, evaluate numbat code and inserts the result after '#=' or similar. So here is a proof of concept numbat-proc.

Nice!