38 lines
765 B
Go
38 lines
765 B
Go
|
package mxj
|
||
|
|
|
||
|
|
import "strings"
|
||
|
|
|
||
|
|
// Removes the path.
|
||
|
|
func (mv Map) Remove(path string) error {
|
||
|
|
m := map[string]interface{}(mv)
|
||
|
|
return remove(m, path)
|
||
|
|
}
|
||
|
|
|
||
|
|
func remove(m interface{}, path string) error {
|
||
|
|
val, err := prevValueByPath(m, path)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
lastKey := lastKey(path)
|
||
|
|
delete(val, lastKey)
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// returns the last key of the path.
|
||
|
|
// lastKey("a.b.c") would had returned "c"
|
||
|
|
func lastKey(path string) string {
|
||
|
|
keys := strings.Split(path, ".")
|
||
|
|
key := keys[len(keys)-1]
|
||
|
|
return key
|
||
|
|
}
|
||
|
|
|
||
|
|
// returns the path without the last key
|
||
|
|
// parentPath("a.b.c") whould had returned "a.b"
|
||
|
|
func parentPath(path string) string {
|
||
|
|
keys := strings.Split(path, ".")
|
||
|
|
parentPath := strings.Join(keys[0:len(keys)-1], ".")
|
||
|
|
return parentPath
|
||
|
|
}
|