mirror of
https://github.com/kanaka/mal.git
synced 2024-11-11 00:52:44 +03:00
4ef4b17cd0
This rewrites the rust implementation to use many new features of the current version of rust. The refactor is much more concise (only 2/3rds the size) and switches to using a lot of the more functional features (iterators, closures, etc) that have been added or improved in rust. Unfortunately, the implementation is a fair bit slower (about 30% on perf3). It's not clear why this is the case but concision and being more idiomatic wins over performance.
34 lines
751 B
Rust
34 lines
751 B
Rust
extern crate rustyline;
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use rustyline::error::ReadlineError;
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use rustyline::Editor;
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fn main() {
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// `()` can be used when no completer is required
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let mut rl = Editor::<()>::new();
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if rl.load_history(".mal-history").is_err() {
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println!("No previous history.");
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}
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loop {
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let readline = rl.readline("user> ");
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match readline {
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Ok(line) => {
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rl.add_history_entry(&line);
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rl.save_history(".mal-history").unwrap();
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if line.len() > 0 {
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println!("{}", line);
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}
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},
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Err(ReadlineError::Interrupted) => continue,
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Err(ReadlineError::Eof) => break,
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Err(err) => {
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println!("Error: {:?}", err);
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break
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}
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}
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}
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}
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// vim: ts=2:sw=2:expandtab
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