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80 lines
2.9 KiB
Go
80 lines
2.9 KiB
Go
package pflag
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// -- string Value
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type stringValue string
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func newStringValue(val string, p *string) *stringValue {
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*p = val
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return (*stringValue)(p)
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}
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func (s *stringValue) Set(val string) error {
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*s = stringValue(val)
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return nil
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}
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func (s *stringValue) Type() string {
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return "string"
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}
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func (s *stringValue) String() string { return string(*s) }
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func stringConv(sval string) (interface{}, error) {
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return sval, nil
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}
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// GetString return the string value of a flag with the given name
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func (f *FlagSet) GetString(name string) (string, error) {
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val, err := f.getFlagType(name, "string", stringConv)
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if err != nil {
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return "", err
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}
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return val.(string), nil
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}
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// StringVar defines a string flag with specified name, default value, and usage string.
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// The argument p points to a string variable in which to store the value of the flag.
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func (f *FlagSet) StringVar(p *string, name string, value string, usage string) {
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f.VarP(newStringValue(value, p), name, "", usage)
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}
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// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) StringVarP(p *string, name, shorthand string, value string, usage string) {
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f.VarP(newStringValue(value, p), name, shorthand, usage)
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}
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// StringVar defines a string flag with specified name, default value, and usage string.
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// The argument p points to a string variable in which to store the value of the flag.
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func StringVar(p *string, name string, value string, usage string) {
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CommandLine.VarP(newStringValue(value, p), name, "", usage)
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}
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// StringVarP is like StringVar, but accepts a shorthand letter that can be used after a single dash.
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func StringVarP(p *string, name, shorthand string, value string, usage string) {
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CommandLine.VarP(newStringValue(value, p), name, shorthand, usage)
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}
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// String defines a string flag with specified name, default value, and usage string.
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// The return value is the address of a string variable that stores the value of the flag.
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func (f *FlagSet) String(name string, value string, usage string) *string {
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p := new(string)
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f.StringVarP(p, name, "", value, usage)
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return p
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}
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// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
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func (f *FlagSet) StringP(name, shorthand string, value string, usage string) *string {
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p := new(string)
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f.StringVarP(p, name, shorthand, value, usage)
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return p
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}
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// String defines a string flag with specified name, default value, and usage string.
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// The return value is the address of a string variable that stores the value of the flag.
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func String(name string, value string, usage string) *string {
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return CommandLine.StringP(name, "", value, usage)
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}
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// StringP is like String, but accepts a shorthand letter that can be used after a single dash.
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func StringP(name, shorthand string, value string, usage string) *string {
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return CommandLine.StringP(name, shorthand, value, usage)
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}
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