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package pflag
import (
"bytes"
"fmt"
"strconv"
"strings"
)
// -- stringToInt64 Value
type stringToInt64Value struct {
value *map[string]int64
changed bool
}
func newStringToInt64Value(val map[string]int64, p *map[string]int64) *stringToInt64Value {
ssv := new(stringToInt64Value)
ssv.value = p
*ssv.value = val
return ssv
}
// Format: a=1,b=2
func (s *stringToInt64Value) Set(val string) error {
ss := strings.Split(val, ",")
out := make(map[string]int64, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return fmt.Errorf("%s must be formatted as key=value", pair)
}
var err error
out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
if err != nil {
return err
}
}
if !s.changed {
*s.value = out
} else {
for k, v := range out {
(*s.value)[k] = v
}
}
s.changed = true
return nil
}
func (s *stringToInt64Value) Type() string {
return "stringToInt64"
}
func (s *stringToInt64Value) String() string {
var buf bytes.Buffer
i := 0
for k, v := range *s.value {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(k)
buf.WriteRune('=')
buf.WriteString(strconv.FormatInt(v, 10))
i++
}
return "[" + buf.String() + "]"
}
func stringToInt64Conv(val string) (interface{}, error) {
val = strings.Trim(val, "[]")
// An empty string would cause an empty map
if len(val) == 0 {
return map[string]int64{}, nil
}
ss := strings.Split(val, ",")
out := make(map[string]int64, len(ss))
for _, pair := range ss {
kv := strings.SplitN(pair, "=", 2)
if len(kv) != 2 {
return nil, fmt.Errorf("%s must be formatted as key=value", pair)
}
var err error
out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
if err != nil {
return nil, err
}
}
return out, nil
}
// GetStringToInt64 return the map[string]int64 value of a flag with the given name
func (f *FlagSet) GetStringToInt64(name string) (map[string]int64, error) {
val, err := f.getFlagType(name, "stringToInt64", stringToInt64Conv)
if err != nil {
return map[string]int64{}, err
}
return val.(map[string]int64), nil
}
// StringToInt64Var defines a string flag with specified name, default value, and usage string.
// The argument p point64s to a map[string]int64 variable in which to store the values of the multiple flags.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
f.VarP(newStringToInt64Value(value, p), name, "", usage)
}
// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
f.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
}
// StringToInt64Var defines a string flag with specified name, default value, and usage string.
// The argument p point64s to a map[string]int64 variable in which to store the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
CommandLine.VarP(newStringToInt64Value(value, p), name, "", usage)
}
// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
func StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
CommandLine.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
}
// StringToInt64 defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]int64 variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func (f *FlagSet) StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
p := map[string]int64{}
f.StringToInt64VarP(&p, name, "", value, usage)
return &p
}
// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
p := map[string]int64{}
f.StringToInt64VarP(&p, name, shorthand, value, usage)
return &p
}
// StringToInt64 defines a string flag with specified name, default value, and usage string.
// The return value is the address of a map[string]int64 variable that stores the value of the flag.
// The value of each argument will not try to be separated by comma
func StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
return CommandLine.StringToInt64P(name, "", value, usage)
}
// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
func StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
return CommandLine.StringToInt64P(name, shorthand, value, usage)
}
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