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gcr-clean/vendor/github.com/docker/cli/opts/quotedstring.go
Knut Ahlers 04cd59c534
Add vendored code
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2019-02-04 16:00:25 +01:00

37 lines
806 B
Go

package opts
// QuotedString is a string that may have extra quotes around the value. The
// quotes are stripped from the value.
type QuotedString struct {
value *string
}
// Set sets a new value
func (s *QuotedString) Set(val string) error {
*s.value = trimQuotes(val)
return nil
}
// Type returns the type of the value
func (s *QuotedString) Type() string {
return "string"
}
func (s *QuotedString) String() string {
return *s.value
}
func trimQuotes(value string) string {
lastIndex := len(value) - 1
for _, char := range []byte{'\'', '"'} {
if value[0] == char && value[lastIndex] == char {
return value[1:lastIndex]
}
}
return value
}
// NewQuotedString returns a new quoted string option
func NewQuotedString(value *string) *QuotedString {
return &QuotedString{value: value}
}