Crate bird_machine[−][src]
bird-machine
Compile your regular expressions at compile time.
Almost none of this has actually been implemented yet. Do not use this yet.
Example: find a date
use bird_machine::{bird_machine, Machine}; #[bird_machine(r"^\d{4}-\d{2}-\d{2}$")] struct Date; assert!(Date::is_match("2014-01-01"));
Example: iterating over capture groups
use bird_machine::{bird_machine, Machine}; #[bird_machine(r"(\d{4})-(\d{2})-(\d{2})")] struct Date<'a>(&'a str, &'a str, &'a str); let input = "2012-03-14, 2013-01-01 and 2014-07-05"; let match_info = Date::captures_iter(input) .map(|x: Date| format!("Month: {} Day: {} Year: {}", x.1, x.2, x.0)); let expected = [ "Month: 03 Day: 14 Year: 2012", "Month: 01 Day: 01 Year: 2013", "Month: 07 Day: 05 Year: 2014", ]; for (actual, expected) in match_info.zip(expected) { assert_eq!(actual, expected); }
Example: replacement with named capture groups
use bird_machine::{bird_machine, Machine}; #[bird_machine(r"(?P<y>\d{4})-(?P<m>\d{2})-(?P<d>\d{2})")] struct Date<'a> { y: &'a str, m: &'a str, d: &'a str, } let before = "2012-03-14, 2013-01-01 and 2014-07-05"; let after = Date::replace_all(before, "$m/$d/$y"); assert_eq!(after, "03/14/2012, 01/01/2013 and 07/05/2014");
Example: compile-time rejection of invalid regular expressions
ⓘ
use bird_machine::bird_machine; #[bird_machine(r"(oops i left this group open")] struct Bad;
Structs
Match | Match represents a single match of a regex in a haystack. |
Traits
Machine | |
Replacer |
Attribute Macros
bird_machine |