Crate paw

Command line argument paw-rser abstraction for main.

Paw’s goal is to show that C’s idea of passing arguments into main wasn’t that bad at all, but just needed a bit of oxidation to make it work with Rust.

Paw defines a trait, a proc macro, and an example implementation that when combined allow you to pass fully parsed arguments to main. Gone is the need to remember which methods to call in order to parse arguments in the CLI. Instead paw makes command line parsing feel first-class

Examples

Create a parser from scratch

#[paw::main]
fn main(args: paw::Args) {
    for arg in args {
        println!("{:?}", arg);
    }
}

To start the server do:

$ cargo run --example scratch -- localhost 8080

More Examples

• Scratch
• Args
• Structopt

Structs

Args

An iterator over the arguments of a process, yielding an String value for each argument.

ArgsOs

An iterator over the arguments of a process, yielding an OsString value for each argument.

Traits

ParseArgs

Allow a type to be parsed as arguments to main.

Attribute Macros

main