man's Introduction

man

Generate structured man pages using roff-rs.

Usage

use man::prelude::*;

fn main() {
    let page = Manual::new("basic")
        .about("A basic example")
        .author(Author::new("Alice Person").email("[email protected]"))
        .author(Author::new("Bob Human").email("[email protected]"))
        .flag(
            Flag::new()
                .short("-d")
                .long("--debug")
                .help("Enable debug mode"),
        )
        .flag(
            Flag::new()
                .short("-v")
                .long("--verbose")
                .help("Enable verbose mode"),
        )
        .option(
            Opt::new("output")
                .short("-o")
                .long("--output")
                .help("The file path to write output to"),
        )
        .example(
            Example::new()
                .text("run basic in debug mode")
                .command("basic -d")
                .output("Debug Mode: basic will print errors to the console")
            )
        .custom(
            Section::new("usage note")
                .paragraph("This program will overwrite any file currently stored at the output path")
        )
        .render();

    println!("{}", page);
}

Preview by running:

$ cargo run > /tmp/app.man; man /tmp/app.man

Which outputs:

BASIC(1)                       General Commands Manual                          BASIC(1)

NAME
       basic - A basic example

SYNOPSIS
       basic [FLAGS] [OPTIONS]

FLAGS
       -d, --debug
              Enable debug mode

       -v, --verbose
              Enable verbose mode

OPTIONS
       -o, --output=output
              The file path to write output to

USAGE NOTE
       This file will overwrite any file currently stored at the output path.

EXIT STATUS
       0      Successful program execution.

       1      Unsuccessful program execution.

       101    The program panicked.

EXAMPLES
       run basic in debug mode
              $ basic -d
              Debug Mode: basic will print errors to the console

AUTHORS
         Alice Person <[email protected]>
         Bob Human <[email protected]>

                                                                                BASIC(1)