feat: implement basic command parsing

src/main.rs

@@ -1,5 +1,7 @@
+mod parse;
 mod prompt;
 
+use parse::parse_line;
 use rustyline::error::ReadlineError;
 use rustyline::{Editor, Result};
 
@@ -15,7 +17,9 @@ fn main() -> Result<()> {
 
         match readline {
             Ok(line) => {
-                println!("Line: {}", line);
+                if let Err(e) = parse_line(&line) {
+                    println!("{}", e)
+                }
             }
             Err(ReadlineError::Interrupted) => {
                 println!("CTRL-C");

src/parse.rs

@@ -0,0 +1,22 @@
+use std::{
+    io::{self, Write},
+    process::Command,
+};
+
+pub fn parse_line(line: &str) -> io::Result<()> {
+    let tokens = line.trim().split(' ').collect::<Vec<&str>>();
+    let mut args: &[&str] = &[];
+    let command = tokens[0];
+    if !args.is_empty() {
+        args = &tokens[1..];
+    }
+    let mut command = Command::new(command);
+
+    command.args(args);
+
+    let output = command.output()?;
+
+    io::stderr().write_all(&output.stderr)?;
+    io::stdout().write_all(&output.stdout)?;
+    Ok(())
+}