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