49 lines
649 B
Rust
49 lines
649 B
Rust
enum TokenType {
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InvalidChar,
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MalformedString,
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MalformedComment,
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Int,
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Plus,
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Minus,
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Asterisk,
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Slash,
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Percent,
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LParen,
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RParen,
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}
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struct Position {
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index: usize,
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line: i32,
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col: i32,
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}
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struct Token {
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token_type: TokenType,
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pos: Position,
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length: usize,
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}
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struct Lexer<'a> {
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text: &'a str,
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i: i32,
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}
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impl<'a> Lexer<'a> {
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pub fn new(text: &'a str) -> Self {
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Self { text, i: 0 }
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}
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}
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impl<'a> Iterator for Lexer<'a> {
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type Item = Token;
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fn next(&mut self) -> Option<Self::Item> {
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todo!()
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}
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}
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fn main() {
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println!("Hello, world!");
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}
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