From 55902a2de95a74662091e77f2a6c62b4feca3d3e Mon Sep 17 00:00:00 2001
From: Jan-Lukas Else <mail@jlelse.de>
Date: Mon, 11 Jan 2021 17:45:57 +0100
Subject: [PATCH] Fix group strings (with umlauts...)

---
 main.go  | 3 ++-
 utils.go | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index d0343c2..01ac855 100644
--- a/main.go
+++ b/main.go
@@ -4,6 +4,7 @@ import (
 	"log"
 	"os"
 	"os/signal"
+	"syscall"
 
 	jsoniter "github.com/json-iterator/go"
 )
@@ -90,7 +91,7 @@ func main() {
 	}()
 
 	// Graceful shutdown
-	signal.Notify(quit, os.Interrupt)
+	signal.Notify(quit, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 	<-quit
 	log.Println("Stopping...")
 
diff --git a/utils.go b/utils.go
index 743d1ca..fba88e2 100644
--- a/utils.go
+++ b/utils.go
@@ -125,7 +125,7 @@ type stringGroup struct {
 func groupStrings(toGroup []string) []stringGroup {
 	stringMap := map[string][]string{}
 	for _, s := range toGroup {
-		first := strings.ToUpper(s[:1])
+		first := strings.ToUpper(strings.Split(s, "")[0])
 		stringMap[first] = append(stringMap[first], s)
 	}
 	stringGroups := []stringGroup{}