rust/step0_repl.rs

   1 extern crate rustyline;
   2
   3 use rustyline::error::ReadlineError;
   4 use rustyline::Editor;
   5
   6 fn main() {
   7   // `()` can be used when no completer is required
   8   let mut rl = Editor::<()>::new();
   9   if rl.load_history(".mal-history").is_err() {
  10       println!("No previous history.");
  11   }
  12
  13   loop {
  14     let readline = rl.readline("user> ");
  15     match readline {
  16       Ok(line) => {
  17         rl.add_history_entry(&line);
  18         rl.save_history(".mal-history").unwrap();
  19         if line.len() > 0 {
  20           println!("{}", line);
  21           }
  22       },
  23       Err(ReadlineError::Interrupted) => continue,
  24       Err(ReadlineError::Eof) => break,
  25       Err(err) => {
  26         println!("Error: {:?}", err);
  27         break
  28       }
  29     }
  30   }
  31 }
  32
  33 // vim: ts=2:sw=2:expandtab