func (k *Key) getInt64s(delim string, addInvalid, returnOnInvalid bool) ([]int64, error) {
	strs := k.Strings(delim)
	vals := make([]int64, 0, len(strs))
	for _, str := range strs {
		val, err := strconv.ParseInt(str, 10, 64)
		if err != nil && returnOnInvalid {
			return nil, err
		}
		if err == nil || addInvalid {
			vals = append(vals, val)
		}
	}
	return vals, nil
}
getInt64s returns list of int64 divided by given delimiter.
package ini
import (
	"fmt"
	"strconv"
	"strings"
	"time"
)
type Key struct {
	s          *Section
	Comment    string
	name       string
	value      string
	isAutoIncr bool
}
func (k *Key) Name() string {
	return k.name
}
func (k *Key) Value() string {
	return k.value
}
func (k *Key) String() string {
	val := k.value
	if strings.Index(val, "%") == -1 {
		return val
	}
	for i := 0; i < _DEPTH_VALUES; i++ {
		vr := varPattern.FindString(val)
		if len(vr) == 0 {
			break
		}
		noption := strings.TrimLeft(vr, "%(")
		noption = strings.TrimRight(noption, ")s")
		nk, err := k.s.GetKey(noption)
		if err != nil {
			nk, _ = k.s.f.Section("").GetKey(noption)
		}
		val = strings.Replace(val, vr, nk.value, -1)
	}
	return val
}
func (k *Key) Validate(fn func(string) string) string {
	return fn(k.String())
}
func parseBool(str string) (value bool, err error) {
	switch str {
	case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On":
		return true, nil
	case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off":
		return false, nil
	}
	return false, fmt.Errorf("parsing \"%s\": invalid syntax", str)
}
func (k *Key) Bool() (bool, error) {
	return parseBool(k.String())
}
func (k *Key) Float64() (float64, error) {
	return strconv.ParseFloat(k.String(), 64)
}
func (k *Key) Int() (int, error) {
	return strconv.Atoi(k.String())
}
func (k *Key) Int64() (int64, error) {
	return strconv.ParseInt(k.String(), 10, 64)
}
func (k *Key) Uint() (uint, error) {
	u, e := strconv.ParseUint(k.String(), 10, 64)
	return uint(u), e
}
func (k *Key) Uint64() (uint64, error) {
	return strconv.ParseUint(k.String(), 10, 64)
}
func (k *Key) Duration() (time.Duration, error) {
	return time.ParseDuration(k.String())
}
func (k *Key) TimeFormat(format string) (time.Time, error) {
	return time.Parse(format, k.String())
}
func (k *Key) Time() (time.Time, error) {
	return k.TimeFormat(time.RFC3339)
}
func (k *Key) MustString(defaultVal string) string {
	val := k.String()
	if len(val) == 0 {
		return defaultVal
	}
	return val
}
func (k *Key) MustBool(defaultVal ...bool) bool {
	val, err := k.Bool()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustFloat64(defaultVal ...float64) float64 {
	val, err := k.Float64()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustInt(defaultVal ...int) int {
	val, err := k.Int()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustInt64(defaultVal ...int64) int64 {
	val, err := k.Int64()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustUint(defaultVal ...uint) uint {
	val, err := k.Uint()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustUint64(defaultVal ...uint64) uint64 {
	val, err := k.Uint64()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration {
	val, err := k.Duration()
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time {
	val, err := k.TimeFormat(format)
	if len(defaultVal) > 0 && err != nil {
		return defaultVal[0]
	}
	return val
}
func (k *Key) MustTime(defaultVal ...time.Time) time.Time {
	return k.MustTimeFormat(time.RFC3339, defaultVal...)
}
func (k *Key) In(defaultVal string, candidates []string) string {
	val := k.String()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 {
	val := k.MustFloat64()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InInt(defaultVal int, candidates []int) int {
	val := k.MustInt()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 {
	val := k.MustInt64()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InUint(defaultVal uint, candidates []uint) uint {
	val := k.MustUint()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
	val := k.MustUint64()
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
	val := k.MustTimeFormat(format)
	for _, cand := range candidates {
		if val == cand {
			return val
		}
	}
	return defaultVal
}
func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time {
	return k.InTimeFormat(time.RFC3339, defaultVal, candidates)
}
func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 {
	val := k.MustFloat64()
	if val < min || val > max {
		return defaultVal
	}
	return val
}
func (k *Key) RangeInt(defaultVal, min, max int) int {
	val := k.MustInt()
	if val < min || val > max {
		return defaultVal
	}
	return val
}
func (k *Key) RangeInt64(defaultVal, min, max int64) int64 {
	val := k.MustInt64()
	if val < min || val > max {
		return defaultVal
	}
	return val
}
func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time {
	val := k.MustTimeFormat(format)
	if val.Unix() < min.Unix() || val.Unix() > max.Unix() {
		return defaultVal
	}
	return val
}
func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time {
	return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max)
}
func (k *Key) Strings(delim string) []string {
	str := k.String()
	if len(str) == 0 {
		return []string{}
	}
	vals := strings.Split(str, delim)
	for i := range vals {
		vals[i] = strings.TrimSpace(vals[i])
	}
	return vals
}
func (k *Key) Float64s(delim string) []float64 {
	vals, _ := k.getFloat64s(delim, true, false)
	return vals
}
func (k *Key) Ints(delim string) []int {
	vals, _ := k.getInts(delim, true, false)
	return vals
}
func (k *Key) Int64s(delim string) []int64 {
	vals, _ := k.getInt64s(delim, true, false)
	return vals
}
func (k *Key) Uints(delim string) []uint {
	vals, _ := k.getUints(delim, true, false)
	return vals
}
func (k *Key) Uint64s(delim string) []uint64 {
	vals, _ := k.getUint64s(delim, true, false)
	return vals
}
func (k *Key) TimesFormat(format, delim string) []time.Time {
	vals, _ := k.getTimesFormat(format, delim, true, false)
	return vals
}
func (k *Key) Times(delim string) []time.Time {
	return k.TimesFormat(time.RFC3339, delim)
}
func (k *Key) ValidFloat64s(delim string) []float64 {
	vals, _ := k.getFloat64s(delim, false, false)
	return vals
}
func (k *Key) ValidInts(delim string) []int {
	vals, _ := k.getInts(delim, false, false)
	return vals
}
func (k *Key) ValidInt64s(delim string) []int64 {
	vals, _ := k.getInt64s(delim, false, false)
	return vals
}
func (k *Key) ValidUints(delim string) []uint {
	vals, _ := k.getUints(delim, false, false)
	return vals
}
func (k *Key) ValidUint64s(delim string) []uint64 {
	vals, _ := k.getUint64s(delim, false, false)
	return vals
}
func (k *Key) ValidTimesFormat(format, delim string) []time.Time {
	vals, _ := k.getTimesFormat(format, delim, false, false)
	return vals
}
func (k *Key) ValidTimes(delim string) []time.Time {
	return k.ValidTimesFormat(time.RFC3339, delim)
}
func (k *Key) StrictFloat64s(delim string) ([]float64, error) {
	return k.getFloat64s(delim, false, true)
}
func (k *Key) StrictInts(delim string) ([]int, error) {
	return k.getInts(delim, false, true)
}
func (k *Key) StrictInt64s(delim string) ([]int64, error) {
	return k.getInt64s(delim, false, true)
}
func (k *Key) StrictUints(delim string) ([]uint, error) {
	return k.getUints(delim, false, true)
}
func (k *Key) StrictUint64s(delim string) ([]uint64, error) {
	return k.getUint64s(delim, false, true)
}
func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) {
	return k.getTimesFormat(format, delim, false, true)
}
func (k *Key) StrictTimes(delim string) ([]time.Time, error) {
	return k.StrictTimesFormat(time.RFC3339, delim)
}
func (k *Key) getFloat64s(delim string, addInvalid, returnOnInvalid bool) ([]float64, error) {
	strs := k.Strings(delim)
	vals := make([]float64, 0, len(strs))
	for _, str := range strs {
		val, err := strconv.ParseFloat(str, 64)
		if err != nil && returnOnInvalid {
			return nil, err
		}
		if err == nil || addInvalid {
			vals = append(vals, val)
		}
	}
	return vals, nil
}
func (k *Key) getInts(delim string, addInvalid, returnOnInvalid bool) ([]int, error) {
	strs := k.Strings(delim)
	vals := make([]int, 0, len(strs))
	for _, str := range strs {
		val, err := strconv.Atoi(str)
		if err != nil && returnOnInvalid {
			return nil, err
		}
		if err == nil || addInvalid {
			vals = append(vals, val)
		}
	}
	return vals, nil
}