func setSliceWithProperType(key *Key, field reflect.Value, delim string, allowShadow, isStrict bool) error {
	var strs []string
	if allowShadow {
		strs = key.StringsWithShadows(delim)
	} else {
		strs = key.Strings(delim)
	}
	numVals := len(strs)
	if numVals == 0 {
		return nil
	}
	var vals interface{}
	var err error
	sliceOf := field.Type().Elem().Kind()
	switch sliceOf {
	case reflect.String:
		vals = strs
	case reflect.Int:
		vals, err = key.parseInts(strs, true, false)
	case reflect.Int64:
		vals, err = key.parseInt64s(strs, true, false)
	case reflect.Uint:
		vals, err = key.parseUints(strs, true, false)
	case reflect.Uint64:
		vals, err = key.parseUint64s(strs, true, false)
	case reflect.Float64:
		vals, err = key.parseFloat64s(strs, true, false)
	case reflectTime:
		vals, err = key.parseTimesFormat(time.RFC3339, strs, true, false)
	default:
		return fmt.Errorf("unsupported type '[]%s'", sliceOf)
	}
	if err != nil && isStrict {
		return err
	}
	slice := reflect.MakeSlice(field.Type(), numVals, numVals)
	for i := 0; i < numVals; i++ {
		switch sliceOf {
		case reflect.String:
			slice.Index(i).Set(reflect.ValueOf(vals.([]string)[i]))
		case reflect.Int:
			slice.Index(i).Set(reflect.ValueOf(vals.([]int)[i]))
		case reflect.Int64:
			slice.Index(i).Set(reflect.ValueOf(vals.([]int64)[i]))
		case reflect.Uint:
			slice.Index(i).Set(reflect.ValueOf(vals.([]uint)[i]))
		case reflect.Uint64:
			slice.Index(i).Set(reflect.ValueOf(vals.([]uint64)[i]))
		case reflect.Float64:
			slice.Index(i).Set(reflect.ValueOf(vals.([]float64)[i]))
		case reflectTime:
			slice.Index(i).Set(reflect.ValueOf(vals.([]time.Time)[i]))
		}
	}
	field.Set(slice)
	return nil
}
setSliceWithProperType sets proper values to slice based on its type.
package ini
import (
	"bytes"
	"errors"
	"fmt"
	"reflect"
	"strings"
	"time"
	"unicode"
)
type NameMapper func(string) string
var (
	AllCapsUnderscore NameMapper = func(raw string) string {
		newstr := make([]rune, 0, len(raw))
		for i, chr := range raw {
			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
				if i > 0 {
					newstr = append(newstr, '_')
				}
			}
			newstr = append(newstr, unicode.ToUpper(chr))
		}
		return string(newstr)
	}
	TitleUnderscore NameMapper = func(raw string) string {
		newstr := make([]rune, 0, len(raw))
		for i, chr := range raw {
			if isUpper := 'A' <= chr && chr <= 'Z'; isUpper {
				if i > 0 {
					newstr = append(newstr, '_')
				}
				chr -= ('A' - 'a')
			}
			newstr = append(newstr, chr)
		}
		return string(newstr)
	}
)
func (s *Section) parseFieldName(raw, actual string) string {
	if len(actual) > 0 {
		return actual
	}
	if s.f.NameMapper != nil {
		return s.f.NameMapper(raw)
	}
	return raw
}
func parseDelim(actual string) string {
	if len(actual) > 0 {
		return actual
	}
	return ","
}
var reflectTime = reflect.TypeOf(time.Now()).Kind()