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moby--moby/opts/quotedstring.go
Daniel Nephin a2dc349c74 Add quoted string flag Value.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
(cherry picked from commit e4c1f07729)
Signed-off-by: Victor Vieux <vieux@docker.com>
2017-01-04 12:42:42 +01:00

30 lines
652 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 string
// Set sets a new value
func (s *QuotedString) Set(val string) error {
*s = QuotedString(trimQuotes(val))
return nil
}
// Type returns the type of the value
func (s *QuotedString) Type() string {
return "string"
}
func (s *QuotedString) String() string {
return string(*s)
}
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
}