mirror of
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126 lines
3.8 KiB
Go
126 lines
3.8 KiB
Go
package pflag
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// -- uintSlice Value
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type uintSliceValue struct {
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value *[]uint
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changed bool
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}
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func newUintSliceValue(val []uint, p *[]uint) *uintSliceValue {
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uisv := new(uintSliceValue)
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uisv.value = p
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*uisv.value = val
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return uisv
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}
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func (s *uintSliceValue) Set(val string) error {
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ss := strings.Split(val, ",")
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out := make([]uint, len(ss))
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for i, d := range ss {
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u, err := strconv.ParseUint(d, 10, 0)
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if err != nil {
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return err
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}
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out[i] = uint(u)
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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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*s.value = append(*s.value, out...)
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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 *uintSliceValue) Type() string {
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return "uintSlice"
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}
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func (s *uintSliceValue) String() string {
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out := make([]string, len(*s.value))
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for i, d := range *s.value {
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out[i] = fmt.Sprintf("%d", d)
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}
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return "[" + strings.Join(out, ",") + "]"
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}
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func uintSliceConv(val string) (interface{}, error) {
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val = strings.Trim(val, "[]")
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// Empty string would cause a slice with one (empty) entry
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if len(val) == 0 {
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return []uint{}, nil
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}
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ss := strings.Split(val, ",")
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out := make([]uint, len(ss))
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for i, d := range ss {
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u, err := strconv.ParseUint(d, 10, 0)
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if err != nil {
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return nil, err
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}
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out[i] = uint(u)
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}
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return out, nil
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}
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// GetUintSlice returns the []uint value of a flag with the given name.
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func (f *FlagSet) GetUintSlice(name string) ([]uint, error) {
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val, err := f.getFlagType(name, "uintSlice", uintSliceConv)
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if err != nil {
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return []uint{}, err
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}
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return val.([]uint), nil
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}
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// UintSliceVar defines a uintSlice flag with specified name, default value, and usage string.
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// The argument p points to a []uint variable in which to store the value of the flag.
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func (f *FlagSet) UintSliceVar(p *[]uint, name string, value []uint, usage string) {
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f.VarP(newUintSliceValue(value, p), name, "", usage)
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}
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// UintSliceVarP is like UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
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f.VarP(newUintSliceValue(value, p), name, shorthand, usage)
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}
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// UintSliceVar defines a uint[] flag with specified name, default value, and usage string.
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// The argument p points to a uint[] variable in which to store the value of the flag.
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func UintSliceVar(p *[]uint, name string, value []uint, usage string) {
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CommandLine.VarP(newUintSliceValue(value, p), name, "", usage)
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}
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// UintSliceVarP is like the UintSliceVar, but accepts a shorthand letter that can be used after a single dash.
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func UintSliceVarP(p *[]uint, name, shorthand string, value []uint, usage string) {
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CommandLine.VarP(newUintSliceValue(value, p), name, shorthand, usage)
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}
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// UintSlice defines a []uint flag with specified name, default value, and usage string.
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// The return value is the address of a []uint variable that stores the value of the flag.
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func (f *FlagSet) UintSlice(name string, value []uint, usage string) *[]uint {
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p := []uint{}
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f.UintSliceVarP(&p, name, "", value, usage)
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return &p
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}
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// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
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p := []uint{}
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f.UintSliceVarP(&p, name, shorthand, value, usage)
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return &p
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}
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// UintSlice defines a []uint flag with specified name, default value, and usage string.
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// The return value is the address of a []uint variable that stores the value of the flag.
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func UintSlice(name string, value []uint, usage string) *[]uint {
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return CommandLine.UintSliceP(name, "", value, usage)
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}
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// UintSliceP is like UintSlice, but accepts a shorthand letter that can be used after a single dash.
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func UintSliceP(name, shorthand string, value []uint, usage string) *[]uint {
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return CommandLine.UintSliceP(name, shorthand, value, usage)
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}
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