rflex

rflex is a fast lexical analyzer generator for Rust.

cargo install rflex

or

Write your Cargo.toml and build.rs

[package]
# ...build = "build.rs"
[build-dependencies]
# ...failure = "0.1.5"rflex = "0.9.0"

externcrate rflex;use std::env;use std::path::Path;fnmain(){let out_dir = env::var("OUT_DIR").unwrap();let dest = Path::new(&out_dir).join("target.rs");let path = Path::new("src").join("target.l");ifletErr(e) = rflex::process(path,Some(dest)){for cause in failure::Fail::iter_chain(&e){eprintln!("{}: {}", cause.name().unwrap_or("Error"), cause);}
std::process::exit(1);}}

See tutorial.md.

Unsupported regular-expression

• e{num} ... repeat e num times
• e{min,max} ... repeat e min to max times
• e/s ... lookahead s before accept e

License

• rflex is released under MIT License.

Copyright

• Copyright (c) 2018 Preferred Networks, Inc.
• Partial original codes were written in Java under 3-clause BSD license:
  • Copyright (c) Gerwin Klein, Steve Rowe, Regis Decamp. All rights reserved.

Dependent libraries

These libraries are used only rflex lexer generator, generated code doesn't depend on them.

• fixedbitset released under MIT License
  • Copyright (c) 2015-2017
• liquid released under MIT License
  • Copyright (c) 2014 cobalt-org
• failure released under MIT License