[−][src]Crate rand_regex
Generates strings are byte strings following rule of a regular expression.
use rand::{SeedableRng, Rng}; let mut rng = rand_xorshift::XorShiftRng::from_seed(*b"The initial seed"); // creates a generator for sampling strings let gen = rand_regex::Regex::compile(r"\d{4}-\d{2}-\d{2}", 100).unwrap(); // sample a few strings randomly let samples = (&mut rng).sample_iter(&gen).take(3).collect::<Vec<String>>(); // all Unicode characters are included when sampling assert_eq!(samples, vec![ "᱃៧७᧗-꤂႔-૪۰".to_string(), "𝟽٩𑃶᱒-៤꣖-൭᧓".to_string(), "𑃰꩗१௭-9၅-६௫".to_string(), ]); // you could use `regex_syntax::Hir` to include more options let mut parser = regex_syntax::ParserBuilder::new().unicode(false).build(); let hir = parser.parse(r"\d{4}-\d{2}-\d{2}").unwrap(); let gen = rand_regex::Regex::with_hir(hir, 100).unwrap(); let samples = (&mut rng).sample_iter(&gen).take(3).collect::<Vec<String>>(); assert_eq!(samples, vec![ "8922-87-63".to_string(), "3149-18-88".to_string(), "5420-58-55".to_string(), ]);
Structs
Regex | A random distribution which generates strings matching the specified regex. |
Enums
Error | Error returned by |