53 lines
1.1 KiB
Rust
53 lines
1.1 KiB
Rust
#[macro_use] extern crate downcast;
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extern crate termion;
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#[macro_use]
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mod prolog;
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use prolog::ast::*;
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use prolog::compile::*;
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use prolog::io::*;
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use prolog::machine::*;
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#[cfg(test)]
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mod tests;
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fn parse_and_compile_line(wam: &mut Machine, buffer: &str)
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{
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match parse_code(wam, buffer) {
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Ok(packet) => {
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let result = compile_packet(wam, packet);
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print(wam, result);
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},
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Err(s) => println!("{:?}", s)
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}
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}
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fn prolog_repl() {
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let mut wam = Machine::new();
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loop {
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print!("prolog> ");
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match read() {
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Input::Line(line) => parse_and_compile_line(&mut wam, line.as_str()),
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Input::Batch(batch) =>
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match compile_user_module(&mut wam, batch.as_str()) {
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EvalSession::Error(e) => println!("{}", e),
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_ => {}
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},
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Input::Quit => break,
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Input::Clear => {
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wam.clear();
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continue;
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}
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};
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wam.reset();
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}
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}
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fn main() {
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prolog_repl();
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}
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