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[bytom/vapor.git] / vendor / github.com / spf13 / pflag / int_slice.go

diff --git a/vendor/github.com/spf13/pflag/int_slice.go b/vendor/github.com/spf13/pflag/int_slice.go
new file mode 100644 (file)
index 0000000..1e7c9ed
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/int_slice.go
@@ -0,0 +1,128 @@
+package pflag
+
+import (
+       "fmt"
+       "strconv"
+       "strings"
+)
+
+// -- intSlice Value
+type intSliceValue struct {
+       value   *[]int
+       changed bool
+}
+
+func newIntSliceValue(val []int, p *[]int) *intSliceValue {
+       isv := new(intSliceValue)
+       isv.value = p
+       *isv.value = val
+       return isv
+}
+
+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
+               }
+
+       }
+       if !s.changed {
+               *s.value = out
+       } else {
+               *s.value = append(*s.value, out...)
+       }
+       s.changed = true
+       return nil
+}
+
+func (s *intSliceValue) Type() string {
+       return "intSlice"
+}
+
+func (s *intSliceValue) String() string {
+       out := make([]string, len(*s.value))
+       for i, d := range *s.value {
+               out[i] = fmt.Sprintf("%d", d)
+       }
+       return "[" + strings.Join(out, ",") + "]"
+}
+
+func intSliceConv(val string) (interface{}, error) {
+       val = strings.Trim(val, "[]")
+       // Empty string would cause a slice with one (empty) entry
+       if len(val) == 0 {
+               return []int{}, nil
+       }
+       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)
+}
+
+// IntSliceVarP is 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)
+}
+
+// IntSliceVarP is 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 := []int{}
+       f.IntSliceVarP(&p, name, "", value, usage)
+       return &p
+}
+
+// IntSliceP is 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 := []int{}
+       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)
+}
+
+// IntSliceP is 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)
+}