Consider using a more robust CLI arguments parser

PaddiM8 / kalker

Scientific calculator with math syntax that supports user-defined variables and functions, complex numbers, and estimation of derivatives and integrals

https://kalker.xyz

MIT License

1.59k stars 70 forks source link

Consider using a more robust CLI arguments parser #12

Closed shilangyu closed 3 years ago

shilangyu commented 4 years ago

Currently when I run kalk help (out of habit) I get a weird error of Undefined variable: 'h'.. I think switching to a ready solution would greatly benefit future development.

Something like Clap requires minimal setup while providing a lot of great features (like generating shell completions which are hard to maintain by hand). This will add to compile time though so it is worth thinking about it.

I am willing to help with the transition.

PaddiM8 commented 4 years ago

I have been planning to do this eventually, but yeah I am a bit worried about compile times/binary size since the cli arguments are so simple. Clap is probably a good choice anyway though. I will look into it.

matematikaadit commented 4 years ago

If you're worried about compile times/binary size, there are a few alternatives.

Here are some comparisons taken from pico-args' README

	null	`pico-args`	`clap`	`gumdrop`	`structopt`	`argh`
Binary overhead	0KiB	18.6KiB	379.8KiB	21.9KiB	379.6KiB	17.1KiB
Build time	0.1s	0.5s	5.4s	7.7s	15.3s	6.0s
Number of dependencies	0	0	12	5	25	12
Tested version	-	0.3.3	2.33.1	0.8.0	0.3.14	0.1.3

Links:

PaddiM8 commented 4 years ago

@matematikaadit Thank you for this!

PaddiM8 commented 3 years ago

Ended up going with seahorse!