logos calculator example

src/lexer.rs

@@ -1,33 +0,0 @@
-use logos::{Lexer, Logos};
-
-#[derive(Logos, Debug, Clone, PartialEq)]
-#[logos(skip r"[ \t\r\n\f]+")] // Skips whitespace
-enum Token<'source> {
-    #[token("false", |_| false)]
-    #[token("true", |_| true)]
-    Bool(bool),
-
-    #[token("+")]
-    Add,
-
-    #[token("-")]
-    Substract,
-
-    #[token("*")]
-    Multiply,
-
-    #[token("/")]
-    Divide,
-    
-    #[regex(r"[_a-zA-Z][_0-9a-zA-Z]*")]
-    Ident(&'source str),
-
-    #[regex(r#""([^"\\\x00-\x1F]|\\(["\\bnfrt/]|u[a-fA-F0-9]{4}))*""#, |lex| lex.slice().to_owned())]
-    String(String),
-}
-
-fn float<'a>(lex: &mut Lexer<'a, Token<'a>>) -> Result<f64, ()> {
-    lex.slice().parse().map_err(|_| ())
-}
-
-