duckscript VS clap-rs

Currently i'm using it in cargo-make but will also use it later to parse args for duckscript commands.

At it's most basic you could make a really simple interpreter by just doing such a thing, and there is essentially already such a simple language like that built for/in rust called Duckscript (rust has a surprisingly large number of little embedded languages), and that would be completely and entirely sufficient for many purposes, though if you want speed then you'll need to JIT or AOT the code, which is why wasm is so handy as you can interpret or JIT (or even AOT it with wasmer) without the much larger overhead of a, for example, javascript or java embedded runtime.

Seems unfair. Version 4 was almost 3 years ago and and I can't recall any issue in that time.

Major versions have good quality migration guides. If only all libraries were developed with such professionalism.

https://github.com/clap-rs/clap/blob/v4.5.0/CHANGELOG.md

Rust’s modularity and ergonomic design, combined with the powerful clap crate, allowed us to build Spin’s highly extensible Command Line Interface (CLI).

Clap: Command-Line Argument Parser for Rust

CLI parameters can be easily added to our application using the clap crate.

> To the extent there is an exception, testing-only code may be. Testing-only code has very different constraints than production code anyhow. Even then, though, I still find that refactoring problem arises, and test code needs to be refactorable too.

For me, I avoid defining anything within a function except when that thing being defined is what is being tested in a test, e.g. https://github.com/clap-rs/clap/blob/87647d268c8c27e3298b2c0...

We will be using the library for Clap - A simple-to-use, efficient, and full-featured library for parsing command line arguments and subcommands.

I recently came across this question (and associated answer) on the clap repository. The answer given is a good one. But I wanted to expand with my own findings and practices, which spurred the motivation for this post.

We can also use tuple-like struct syntax and named-field struct syntax for enum variants within our enum; this is because unlike in other OOP languages, Rust enums are actually sum types. You can read more about how powerful Rust enums are in another article we wrote here. You can have optional arguments by simply wrapping the types in Option, but if you want to add a flag to a command you can use bool, since clap recognises that flags are either there or not there. Let's have a look at what this might look like:

I began by developing a wrapper for the CurseForge API, which turned out to be a lengthy and challenging process but constituted the bulk of the work. Next, I coded the CLI, which was relatively straightforward. Instead of using the clap crate, a Rust tool for generating CLIs, I opted for the following line of code: