package core

import (
	"net/url"
	"strconv"
	"strings"
)

func itoa(n int) string {
	return strconv.Itoa(n)
}

func hasPrefix(s, prefix string) bool {
	return strings.HasPrefix(strings.ToLower(s), strings.ToLower(prefix))
}

func lastIndexOf(s string, ch byte) int {
	return strings.LastIndexByte(s, ch)
}

func splitAt(s string, ch byte) []string {
	idx := strings.IndexByte(s, ch)
	if idx < 0 {
		return []string{s}
	}
	return []string{s[:idx], s[idx+1:]}
}

func urlUnescape(s string) (string, error) {
	return url.PathUnescape(s)
}