rustHow to use regex with bytes in Rust?
Regex can be used with bytes in Rust by using the regex
crate. This crate provides a Regex
type which can be used to match against byte slices.
use regex::Regex;
let re = Regex::new(r"\d+").unwrap();
let bytes = b"123 456";
for cap in re.captures_iter(bytes) {
println!("{}", &cap[0]);
}
Output example
123
456
Code explanation
use regex::Regex
: imports theRegex
type from theregex
crate.Regex::new(r"\d+")
: creates a newRegex
object from the given pattern.captures_iter(bytes)
: returns an iterator over all the non-overlapping captures in the given byte slice.&cap[0]
: returns the first capture group of the given capture.
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