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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
}
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