From c3e8d1938e7c50e563ca7288d229ed5dcff11774 Mon Sep 17 00:00:00 2001
From: Jim Infield <jinfield@gmail.com>
Date: Wed, 18 Aug 2021 20:14:15 -0500
Subject: [PATCH] Initial Codewars submission..

add check for empty string (look for better way)
use filter_map() on integer parsing, this method does not panic
filter_map sends an empty value which is converted to zero
---
 src/main.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 5b40d29..6a7e06a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -47,11 +47,12 @@ fn main() {
 }
 
 fn stati(s: &str) -> String {
+    if s.is_empty() { return "".to_string() } // handle empty string
     let mut t =
         s.split(", ")
         .map(
             |m| m.split('|')
-            .map(|e| e.parse::<usize>().unwrap())
+            .filter_map(|e| e.parse::<usize>().ok()) // handle invalid parse
             .collect::<Vec<usize>>()
             .chunks(3)
             .map(|c| (c[0],c[1],c[2]))