Parse command line arguments

This commit is contained in:
Paul Campbell 2023-03-20 07:24:42 +00:00
parent f12f789c5c
commit 3f79ffd928
3 changed files with 363 additions and 3 deletions

336
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fn main() {
println!("Hello, world!");
use std::path::PathBuf;
use clap::Parser;
#[derive(Parser,Debug)]
#[command(version)]
struct Cli {
/// The number of lines to skip
lines: usize,
/// The file to read, or stdin if not given
file: Option<PathBuf>,
/// Skip until N lines matching this
#[arg(short,long, conflicts_with = "token")]
line: Option<String>,
/// Skip lines until N tokens found
#[arg(short,long, conflicts_with = "line", required_if_eq("ignore_extras", "true"))]
token: Option<String>,
/// Only count the first token on each line
#[arg(short, long="ignore-extras")]
ignore_extras: bool,
}
fn main() {
let args = Cli::parse();
println!("{args:?}");
}