41 lines
1.3 KiB
Rust
41 lines
1.3 KiB
Rust
use regex::Regex;
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const TO_SEARCH: &str = "
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On 2010-03-14, foo happened. On 2014-10-14, bar happened.
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";
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fn main() {
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let re = Regex::new(r"(\d{4})-(\d{2})-(\d{2})").unwrap();
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// year: 2010, month: 03, day: 14
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// year: 2014, month: 10, day: 14
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for caps in re.captures_iter(TO_SEARCH) {
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println!("year: {}, month: {}, day: {}",
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caps.get(1).unwrap().as_str(),
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caps.get(2).unwrap().as_str(),
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caps.get(3).unwrap().as_str());
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}
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let re2 = Regex::new(r"(\d+)").unwrap();
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println!("{}", re2.replace_all("Hello 100, 200", | caps: ®ex::Captures | {
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"(".to_owned() + &(caps[1].parse::<usize>().unwrap() * 2).to_string() + ")"
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}));
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println!("{}", re2.replace_all("Hello 100, 200", | caps: ®ex::Captures<'_> | {
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"[".to_owned() + &caps[1] + "]"
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}));
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let re3 = Regex::new(r"(?P<x>\d+)").unwrap();
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println!("{}", re3.replace_all("Hello 100, 200", "<$x>"));
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let e = "name@example.com";
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let re_e = Regex::new(r"^(\w+)@((\w+)*\.com)$").unwrap();
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// name -> name
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// domain -> example.com
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// domain -> example
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for cap in re_e.captures_iter(e) {
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println!("name -> {}", cap.get(1).unwrap().as_str());
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println!("domain -> {}", cap.get(2).unwrap().as_str());
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println!("domain -> {}", cap.get(3).unwrap().as_str());
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}
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}
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