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