35 lines
736 B
Rust
35 lines
736 B
Rust
use std::io::{self, Write};
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mod evaluator;
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mod lexer;
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mod parser;
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fn main() {
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let env = evaluator::core_environment();
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let mut input = String::new();
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println!("MAL -- REPL");
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loop {
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print!("> ");
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io::stdout().flush().expect("failed to write to stdout");
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let bytes_read = io::stdin()
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.read_line(&mut input)
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.expect("failed to read from stdin");
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if bytes_read == 0 {
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break;
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}
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let tokens = lexer::read(&input).unwrap();
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let ast = parser::parse(tokens).unwrap();
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let res = evaluator::eval(env.clone(), ast).unwrap();
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for expr in res {
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println!("{expr}")
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}
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input.clear();
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}
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}
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