More tokenizer stuff
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parent
c6a92728ee
commit
2aaa600d53
38
src/main.rs
38
src/main.rs
@ -1,6 +1,7 @@
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use std::io;
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use std::io::Write;
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use std::io::BufRead;
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use std::char;
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fn main() {
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println!("Unnamed language 0.01");
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@ -34,6 +35,7 @@ fn repl() {
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match line {
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Ok(n) => {
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let tokens = tokenize(&buf);
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buf.clear();
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println!("Tokens: {:?}", tokens);
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let ast = parse(tokens);
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@ -52,11 +54,39 @@ fn repl() {
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fn tokenize(input: &str) -> Vec<Token> {
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let mut tokens = Vec::new();
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let mut buffer = String::with_capacity(20);
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let mut iterator = input.chars();
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loop {
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let mut iterator = input.chars().peekable();
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break;
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while let Some(c) = iterator.next() {
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if char::is_whitespace(c) {
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continue;
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} else if c == '"' {
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let mut buffer = String::with_capacity(20);
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while let Some(x) = iterator.next() {
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if x == '"' {
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break;
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}
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buffer.push(x);
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}
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tokens.push(Token::StrLiteral(buffer));
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} else if c == '#' {
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while let Some(x) = iterator.next() {
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if x == '\n' {
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break;
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}
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}
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} else {
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let mut buffer = String::with_capacity(20);
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buffer.push(c);
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while let Some(x) = iterator.next() {
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if char::is_whitespace(x) {
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break;
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}
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buffer.push(x);
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}
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tokens.push(Token::Identifier(buffer));
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}
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}
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tokens.push(Token::EOF);
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