clawsh 0.4.0

A shell built in rust for codecrafters
Documentation 
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use std::{iter::Peekable, str::FromStr as _};

use rustyline::history::FileHistory;

use crate::{
    commands::{Builtin, find_exec_file},
    parser::Token,
    shell::{builtin_exec::handle_builtin, error::ShellError, exec::handle_external_exec},
};

pub fn handle_command<'a, I>(
    cmd_str: &str,
    args: &[String],
    token_iter: &mut Peekable<I>,
    history: &mut FileHistory,
) -> Result<(), ShellError>
where
    I: Iterator<Item = &'a Token>,
{
    if let Ok(builtin) = Builtin::from_str(cmd_str) {
        handle_builtin(builtin, args, token_iter, None, None, history)?;
    } else if find_exec_file(cmd_str)?.is_some() {
        handle_external_exec(cmd_str, args, token_iter, None, None, history)?;
    } else {
        println!("{cmd_str}: command not found");
    }
    Ok(())
}