}

// IsValidPathElement reports whether pe is a valid path element.
func IsValidPathElement(pe string) bool {
	return ValidKeyRegex.MatchString(pe)
}

// IsKVPathElement report whether pe is a key/value path element.
func IsKVPathElement(pe string) bool {
	pe, ok := RemoveBrackets(pe)
	if !ok {
		return false
	}

	kv := splitEscaped(pe, kvSeparatorRune)

			expect: false,
		},
		{
			desc:   "one-bracket",
			in:     "[1:2",
			expect: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.desc, func(t *testing.T) {
			if got := IsKVPathElement(tt.in); got != tt.expect {
				t.Errorf("%s: expect %v got %v", tt.desc, tt.expect, got)
			}
		})
	}
}

func TestIsVPathElement(t *testing.T) {
	tests := []struct {
		desc   string