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arf/types/permission.go

49 lines
808 B
Go

package types
type Mode int
const (
ModeNone = iota
ModeRead
ModeWrite
)
type Permission struct {
Internal Mode
External Mode
}
func ModeFrom (char rune) (mode Mode) {
switch (char) {
case 'n': mode = ModeNone
case 'r': mode = ModeRead
case 'w': mode = ModeWrite
}
return
}
func PermissionFrom (data string) (permission Permission) {
if len(data) != 2 { return }
permission.Internal = ModeFrom(rune(data[0]))
permission.External = ModeFrom(rune(data[1]))
return
}
func (mode Mode) ToString () (output string) {
switch mode {
case ModeNone: output = "n"
case ModeRead: output = "r"
case ModeWrite: output = "w"
}
return
}
func (permission Permission) ToString () (output string) {
output += permission.Internal.ToString()
output += permission.External.ToString()
return
}