From 48408e8963ad8687697373cb6694e8e105ce61d3 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Tue, 5 May 2020 21:33:30 +0800
Subject: [PATCH] ref

---
 regex/src/main.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/regex/src/main.rs b/regex/src/main.rs
index 87cfc22..73ec91b 100644
--- a/regex/src/main.rs
+++ b/regex/src/main.rs
@@ -18,7 +18,7 @@ fn main() {
 
     let re2 = Regex::new(r"(\d+)").unwrap();
     println!("{}", re2.replace_all("Hello 100, 200", | caps: &regex::Captures | {
-        "(".to_owned() + &caps[1] + ")"
+        "(".to_owned() + &(caps[1].parse::<usize>().unwrap() * 2).to_string() + ")"
     }));
     println!("{}", re2.replace_all("Hello 100, 200", | caps: &regex::Captures<'_> | {
         "[".to_owned() + &caps[1] + "]"