33 lines
774 B
Rust
33 lines
774 B
Rust
use crate::{lexer::Lexer, parser::Parser};
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use std::io::{self, BufRead, Write};
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const PROMPT: &[u8] = b">> ";
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pub fn init() {
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let stdin = io::stdin();
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let read_handle = stdin.lock();
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let stdout = io::stdout();
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let write_handle = stdout.lock();
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start(read_handle, write_handle);
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}
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fn start<R: BufRead, W: Write>(mut ip: R, mut out: W) {
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loop {
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out.write_all(PROMPT).unwrap();
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out.flush().unwrap();
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let mut s = String::new();
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ip.read_line(&mut s).unwrap();
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let tokens = Lexer::new(&s);
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for token in tokens.clone() {
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println!("{:?}", token);
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}
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let parser = Parser::new(tokens);
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let stmts = parser.parse_program();
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println!("parser={:?}", stmts);
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}
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}
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