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package pflag
import (
"fmt"
"strconv"
)
// -- count Value
type countValue int
func newCountValue(val int, p *int) *countValue {
*p = val
return (*countValue)(p)
}
func (i *countValue) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
// -1 means that no specific value was passed, so increment
if v == -1 {
*i = countValue(*i + 1)
} else {
*i = countValue(v)
}
return err
}
func (i *countValue) Type() string {
return "count"
}
func (i *countValue) String() string { return fmt.Sprintf("%v", *i) }
func countConv(sval string) (interface{}, error) {
i, err := strconv.Atoi(sval)
if err != nil {
return nil, err
}
return i, nil
}
func (f *FlagSet) GetCount(name string) (int, error) {
val, err := f.getFlagType(name, "count", countConv)
if err != nil {
return 0, err
}
return val.(int), nil
}
func (f *FlagSet) CountVar(p *int, name string, usage string) {
f.CountVarP(p, name, "", usage)
}
func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
flag.NoOptDefVal = "-1"
}
func CountVar(p *int, name string, usage string) {
CommandLine.CountVar(p, name, usage)
}
func CountVarP(p *int, name, shorthand string, usage string) {
CommandLine.CountVarP(p, name, shorthand, usage)
}
func (f *FlagSet) Count(name string, usage string) *int {
p := new(int)
f.CountVarP(p, name, "", usage)
return p
}
func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
p := new(int)
f.CountVarP(p, name, shorthand, usage)
return p
}
func Count(name string, usage string) *int {
return CommandLine.CountP(name, "", usage)
}
func CountP(name, shorthand string, usage string) *int {
return CommandLine.CountP(name, shorthand, usage)
}
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