# 🔮 Write readable regular expressions

The crate provides a clean and readable way of writing your regex in the Rust programming language:

\d{5}(-\d{4})?

digit() * 5 + (just("-") + digit() * 4).optional()

^(?:\d){4}(?:(?:\-)(?:\d){2}){2}$

beginning() + digit() * 4
            + (just("-") + digit() * 2) * 2
            + ending()

rege(x(es)?|xps?)

just("rege") + (just("x") + just("es").optional())
             | (just("xp") + just("s").optional())

How to use the crate?

To convert a PrettyRegex into a regex from regex crate, you can call to_regex or to_regex_or_panic:

use pretty_regex::digit;

let regex = (digit() + ascii_alphabetic().optional()).to_regex_or_panic();

assert!(regex.is_match("3"));