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83 lines
2.6 KiB
Go
83 lines
2.6 KiB
Go
package pflag
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import (
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"fmt"
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"strconv"
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)
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// optional interface to indicate boolean flags that can be
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// supplied without "=value" text
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type boolFlag interface {
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Value
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IsBoolFlag() bool
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}
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// -- bool Value
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type boolValue bool
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func newBoolValue(val bool, p *bool) *boolValue {
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*p = val
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return (*boolValue)(p)
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}
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func (b *boolValue) Set(s string) error {
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v, err := strconv.ParseBool(s)
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*b = boolValue(v)
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return err
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}
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func (b *boolValue) Type() string {
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return "bool"
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}
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func (b *boolValue) String() string { return fmt.Sprintf("%v", *b) }
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func (b *boolValue) IsBoolFlag() bool { return true }
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// BoolVar defines a bool flag with specified name, default value, and usage string.
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// The argument p points to a bool variable in which to store the value of the flag.
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func (f *FlagSet) BoolVar(p *bool, name string, value bool, usage string) {
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f.VarP(newBoolValue(value, p), name, "", usage)
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}
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// Like BoolVar, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
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f.VarP(newBoolValue(value, p), name, shorthand, usage)
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}
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// BoolVar defines a bool flag with specified name, default value, and usage string.
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// The argument p points to a bool variable in which to store the value of the flag.
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func BoolVar(p *bool, name string, value bool, usage string) {
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CommandLine.VarP(newBoolValue(value, p), name, "", usage)
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}
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// Like BoolVar, but accepts a shorthand letter that can be used after a single dash.
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func BoolVarP(p *bool, name, shorthand string, value bool, usage string) {
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CommandLine.VarP(newBoolValue(value, p), name, shorthand, usage)
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}
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// Bool defines a bool flag with specified name, default value, and usage string.
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// The return value is the address of a bool variable that stores the value of the flag.
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func (f *FlagSet) Bool(name string, value bool, usage string) *bool {
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p := new(bool)
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f.BoolVarP(p, name, "", value, usage)
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return p
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}
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// Like Bool, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) BoolP(name, shorthand string, value bool, usage string) *bool {
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p := new(bool)
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f.BoolVarP(p, name, shorthand, value, usage)
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return p
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}
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// Bool defines a bool flag with specified name, default value, and usage string.
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// The return value is the address of a bool variable that stores the value of the flag.
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func Bool(name string, value bool, usage string) *bool {
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return CommandLine.BoolP(name, "", value, usage)
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}
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// Like Bool, but accepts a shorthand letter that can be used after a single dash.
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func BoolP(name, shorthand string, value bool, usage string) *bool {
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return CommandLine.BoolP(name, shorthand, value, usage)
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}
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