package pflag import (	"fmt"	"strconv"	"strings") // -- float64Slice Valuetype float64SliceValue struct {	value   *[]float64	changed bool} func newFloat64SliceValue(val []float64, p *[]float64) *float64SliceValue {	isv := new(float64SliceValue)	isv.value = p	*isv.value = val	return isv} func (s *float64SliceValue) Set(val string) error {	ss := strings.Split(val, ",")	out := make([]float64, len(ss))	for i, d := range ss {		var err error		out[i], err = strconv.ParseFloat(d, 64)		if err != nil {			return err		} 	}	if !s.changed {		*s.value = out	} else {		*s.value = append(*s.value, out...)	}	s.changed = true	return nil} func (s *float64SliceValue) Type() string {	return "float64Slice"} func (s *float64SliceValue) String() string {	out := make([]string, len(*s.value))	for i, d := range *s.value {		out[i] = fmt.Sprintf("%f", d)	}	return "[" + strings.Join(out, ",") + "]"} func (s *float64SliceValue) fromString(val string) (float64, error) {	return strconv.ParseFloat(val, 64)} func (s *float64SliceValue) toString(val float64) string {	return fmt.Sprintf("%f", val)} func (s *float64SliceValue) Append(val string) error {	i, err := s.fromString(val)	if err != nil {		return err	}	*s.value = append(*s.value, i)	return nil} func (s *float64SliceValue) Replace(val []string) error {	out := make([]float64, len(val))	for i, d := range val {		var err error		out[i], err = s.fromString(d)		if err != nil {			return err		}	}	*s.value = out	return nil} func (s *float64SliceValue) GetSlice() []string {	out := make([]string, len(*s.value))	for i, d := range *s.value {		out[i] = s.toString(d)	}	return out} func float64SliceConv(val string) (interface{}, error) {	val = strings.Trim(val, "[]")	// Empty string would cause a slice with one (empty) entry	if len(val) == 0 {		return []float64{}, nil	}	ss := strings.Split(val, ",")	out := make([]float64, len(ss))	for i, d := range ss {		var err error		out[i], err = strconv.ParseFloat(d, 64)		if err != nil {			return nil, err		} 	}	return out, nil} // GetFloat64Slice return the []float64 value of a flag with the given namefunc (f *FlagSet) GetFloat64Slice(name string) ([]float64, error) {	val, err := f.getFlagType(name, "float64Slice", float64SliceConv)	if err != nil {		return []float64{}, err	}	return val.([]float64), nil} // Float64SliceVar defines a float64Slice flag with specified name, default value, and usage string.// The argument p points to a []float64 variable in which to store the value of the flag.func (f *FlagSet) Float64SliceVar(p *[]float64, name string, value []float64, usage string) {	f.VarP(newFloat64SliceValue(value, p), name, "", usage)} // Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {	f.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)} // Float64SliceVar defines a float64[] flag with specified name, default value, and usage string.// The argument p points to a float64[] variable in which to store the value of the flag.func Float64SliceVar(p *[]float64, name string, value []float64, usage string) {	CommandLine.VarP(newFloat64SliceValue(value, p), name, "", usage)} // Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.func Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {	CommandLine.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)} // Float64Slice defines a []float64 flag with specified name, default value, and usage string.// The return value is the address of a []float64 variable that stores the value of the flag.func (f *FlagSet) Float64Slice(name string, value []float64, usage string) *[]float64 {	p := []float64{}	f.Float64SliceVarP(&p, name, "", value, usage)	return &p} // Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {	p := []float64{}	f.Float64SliceVarP(&p, name, shorthand, value, usage)	return &p} // Float64Slice defines a []float64 flag with specified name, default value, and usage string.// The return value is the address of a []float64 variable that stores the value of the flag.func Float64Slice(name string, value []float64, usage string) *[]float64 {	return CommandLine.Float64SliceP(name, "", value, usage)} // Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.func Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {	return CommandLine.Float64SliceP(name, shorthand, value, usage)}