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cloudkeys-go/vendor/github.com/spf13/pflag/int_slice.go

113 lines
3.4 KiB
Go

package pflag
import (
"fmt"
"strconv"
"strings"
)
// -- intSlice Value
type intSliceValue []int
func newIntSliceValue(val []int, p *[]int) *intSliceValue {
*p = val
return (*intSliceValue)(p)
}
func (s *intSliceValue) Set(val string) error {
ss := strings.Split(val, ",")
out := make([]int, len(ss))
for i, d := range ss {
var err error
out[i], err = strconv.Atoi(d)
if err != nil {
return err
}
}
*s = intSliceValue(out)
return nil
}
func (s *intSliceValue) Type() string {
return "intSlice"
}
func (s *intSliceValue) String() string {
out := make([]string, len(*s))
for i, d := range *s {
out[i] = fmt.Sprintf("%d", d)
}
return strings.Join(out, ",")
}
func intSliceConv(val string) (interface{}, error) {
ss := strings.Split(val, ",")
out := make([]int, len(ss))
for i, d := range ss {
var err error
out[i], err = strconv.Atoi(d)
if err != nil {
return nil, err
}
}
return out, nil
}
// GetIntSlice return the []int value of a flag with the given name
func (f *FlagSet) GetIntSlice(name string) ([]int, error) {
val, err := f.getFlagType(name, "intSlice", intSliceConv)
if err != nil {
return []int{}, err
}
return val.([]int), nil
}
// IntSliceVar defines a intSlice flag with specified name, default value, and usage string.
// The argument p points to a []int variable in which to store the value of the flag.
func (f *FlagSet) IntSliceVar(p *[]int, name string, value []int, usage string) {
f.VarP(newIntSliceValue(value, p), name, "", usage)
}
// Like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
f.VarP(newIntSliceValue(value, p), name, shorthand, usage)
}
// IntSliceVar defines a int[] flag with specified name, default value, and usage string.
// The argument p points to a int[] variable in which to store the value of the flag.
func IntSliceVar(p *[]int, name string, value []int, usage string) {
CommandLine.VarP(newIntSliceValue(value, p), name, "", usage)
}
// Like IntSliceVar, but accepts a shorthand letter that can be used after a single dash.
func IntSliceVarP(p *[]int, name, shorthand string, value []int, usage string) {
CommandLine.VarP(newIntSliceValue(value, p), name, shorthand, usage)
}
// IntSlice defines a []int flag with specified name, default value, and usage string.
// The return value is the address of a []int variable that stores the value of the flag.
func (f *FlagSet) IntSlice(name string, value []int, usage string) *[]int {
p := make([]int, 0)
f.IntSliceVarP(&p, name, "", value, usage)
return &p
}
// Like IntSlice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntSliceP(name, shorthand string, value []int, usage string) *[]int {
p := make([]int, 0)
f.IntSliceVarP(&p, name, shorthand, value, usage)
return &p
}
// IntSlice defines a []int flag with specified name, default value, and usage string.
// The return value is the address of a []int variable that stores the value of the flag.
func IntSlice(name string, value []int, usage string) *[]int {
return CommandLine.IntSliceP(name, "", value, usage)
}
// Like IntSlice, but accepts a shorthand letter that can be used after a single dash.
func IntSliceP(name, shorthand string, value []int, usage string) *[]int {
return CommandLine.IntSliceP(name, shorthand, value, usage)
}