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ondra05 2023-01-04 15:30:03 +01:00
parent 1a9cf6c2a6
commit f220e5d12d
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1 changed files with 37 additions and 114 deletions

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@ -1,137 +1,60 @@
use logos::{Lexer, Logos};
#[derive(Logos, Debug, PartialEq, Eq, Clone)]
#[rustfmt::skip]
pub enum Token {
// Symbols
#[token("(")]
LeftParen,
#[token(")")]
RightParen,
#[token("[")]
LeftBracket,
#[token("]")]
RightBracket,
#[token("{")]
LeftCurly,
#[token("}")]
RightCurly,
#[token(";")]
Semicolon,
#[token(",")]
Comma,
#[token("(")] LeftParen,
#[token(")")] RightParen,
#[token("[")] LeftBracket,
#[token("]")] RightBracket,
#[token("{")] LeftCurly,
#[token("}")] RightCurly,
#[token(";")] Semicolon,
#[token(",")] Comma,
// Operators
#[token("+")]
Plus,
#[token("-")]
Minus,
#[token("*")]
Star,
#[token("/")]
FwdSlash,
#[token("=:")]
Assign,
#[token("<=")]
Arrow,
#[token("+")] Plus,
#[token("-")] Minus,
#[token("*")] Star,
#[token("/")] FwdSlash,
#[token("=:")] Assign,
#[token("<=")] Arrow,
// Logical operators
#[token("<")]
LessThan,
#[token(">")]
GreaterThan,
#[token("=")]
Equals,
#[token("ain't")]
Aint,
#[token("<")] LessThan,
#[token(">")] GreaterThan,
#[token("=")] Equals,
#[token("ain't")] Aint,
// Keywords
#[token("functio")]
Functio,
/// Brain fuck FFI
#[token("bff")]
Bff,
/// Variable bro
#[token("dim")]
Dim,
/// Prints the preceding things
#[token("print")]
Print,
/// Read input into preceding variable
#[token("read")]
Read,
/// Ban the following variable from ever being used again
#[token("melo")]
Melo,
#[token("T-Dark")]
TDark,
#[token("functio")] Functio,
#[token("bff")] Bff,
#[token("dim")] Dim,
#[token("print")] Print,
#[token("read")] Read,
#[token("melo")] Melo,
#[token("T-Dark")] TDark,
// Control flow keywords
#[token("unless")]
Unless,
#[token("unless")] Unless,
#[token("loop")] Loop,
#[token("enough")] Enough,
#[token("and again")] AndAgain,
#[token("finally")] Finally,
#[token("rlyeh")] Rlyeh,
#[token("loop")]
Loop,
/// Break out of the loop
#[token("enough")]
Enough,
/// Jump at the start of the loop
#[token("and again")]
AndAgain,
/// Run at the end of the program
#[token("finally")]
Finally,
/// Crash with random error (see discussion #17)
#[token("rlyeh")]
Rlyeh,
#[token("rickroll")]
Rickroll,
#[token("rickroll")] Rickroll,
// Literals
/// String
#[token("/*", get_string)]
String(String),
/// Integer
#[regex(r"-?[0-9]+", get_value)]
Integer(isize),
// A character (to be base-55 converted)
#[regex(r"\p{XID_Start}", get_value)]
Char(char),
/// An identifier
#[token("/*", get_string)] String(String),
#[regex(r"-?[0-9]+", get_value)] Integer(isize),
#[regex(r"\p{XID_Start}", get_value)] Char(char),
#[regex(r"\p{XID_Start}[\p{XID_Continue}]+", get_ident)]
#[token("and ", |_| "and".to_owned())]
Identifier(String),
#[regex(r"owo .*")]
Comment,
#[regex(r"owo .*")] Comment,
#[regex(r"[ \t\n\f]+", logos::skip)]
#[error]