Golang: sorting a slice of string with Polish sorting rules

main.go

package main

import (
	"fmt"
	"sort"

	"github.com/tidwall/collate"
)

type text []string

func main() {
	arr := text{"b", "ą", "ć", "c", "a", "ż", "ś"}
	sort.Sort(arr)
	fmt.Printf("%+v", arr)
}

func (t text) Less(i, j int) bool {
	less := collate.IndexString("POLISH_CI")
	return less(t[i], t[j])
}

func (t text) Len() int {
	return len(t)
}

func (t text) Swap(i, j int) {
	t[i], t[j] = t[j], t[i]
}