How to create switch in xpath

xpath-switch.md

<root>
  <selector>3</selector>
  <value1>A</value1>
  <value2>B</value2>
  <value3>C</value3>
  <other>BAZINGA!</other>
</root>

/root/(
  selector[text()='1']/following::value1,
  selector[text()='2']/following::value2,
  selector[text()='3']/following::value3,
  other
)[1]

Selector value	Return value
1	A
2	B
3	C
something else	BAZINGA!