pfnet / Rflex
Licence: mit
Fast lexer code generator for Rust
Stars: ✭ 100
Programming Languages
rust
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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 = "0.8"
extern crate rflex;
use std::env;
use std::path::Path;
fn main() {
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");
if let Err(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 enum
times -
e{min,max}
... repeat emin
tomax
times -
e/s
... lookaheads
before accepte
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
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