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moby--moby/opts/quotedstring.go
Daniel Nephin 4f0d95fa6e Add canonical import comment
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2018-02-05 16:51:57 -05:00

37 lines
848 B
Go

package opts // import "github.com/docker/docker/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}
}