logos

library0.16.1rscratesunverified

Create ridiculously fast Lexers using derive macros for token definitions.

# Cargo.toml
[dependencies]
logos = "0.16.1"

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INSTALL

IMPORT

SIG · LOGOS

logos

utilityrustv0.16.1

harness data pending

Install & Compatibility

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Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Logos

✓ use logos::Logos;

Defines a simple token enum and lexes a string.

use logos::Logos; #[derive(Logos, Debug, PartialEq)] enum Token { #[token("hello")] Hello, #[token("world")] World, #[error] Error, } fn main() { let mut lex = Token::lexer("hello world"); assert_eq!(lex.next(), Some(Ok(Token::Hello))); assert_eq!(lex.next(), Some(Ok(Token::World))); }

Debug

Known issues

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Upgrade

Version history

0.16.1latest on crates.io

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Dependencies

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Agent activity

8 hits · last 30 days

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Resources

githubhttps://github.com/maciejhirsz/logos ↗

homepagehttps://logos.maciej.codes/ ↗

docshttps://docs.rs/logos/ ↗