re_opt

aws_smt_strings::smt_regular_expressions

Function re_opt 

Source 
pub fn re_opt(r: RegLan) -> RegLan
Expand description

Option

ยงExample

use aws_smt_strings::smt_regular_expressions::*;

let r = str_to_re(&"abcd".into());
let opt_r = re_opt(r);
assert!(str_in_re(&"".into(), opt_r));
assert!(str_in_re(&"abcd".into(), opt_r));