Add structs

runes/runes.go

@@ -0,0 +1,26 @@
+package runes
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func Runes() {
+	s := "Hello, world!"
+	fmt.Printf("%s has %d runes\n", s, utf8.RuneCountInString(s))
+
+	s = "നമസ്കാരം"
+	fmt.Printf("%s has %d runes\n", s, utf8.RuneCountInString(s))
+
+	fmt.Printf("Iterating through %s:\n", s)
+	for i, val := range s {
+		fmt.Printf("%2d = %#U\n", i, val)
+	}
+
+	fmt.Printf("Decoding %s:\n", s)
+	for i, w := 0, 0; i < len(s); i += w {
+		value, width := utf8.DecodeRuneInString(s[i:])
+		fmt.Printf("Decoded rune %#U of size %d\n", value, width)
+		w = width
+	}
+}