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
	}
}