View source for Template:Weekday in month/ordinal

{{#iferror:{{#expr:{{{1}}}}}
  |{{#switch:{{lc:{{{1}}}}}
     |first       |1st      = 1
     |second      |2nd      = 2
     |third       |3rd      = 3
     |fourth      |4th      = 4
     |fifth       |5th      = 5
     |last                  =-1
     |second last |2nd last =-2
     |third last  |3rd last =-3
     |fourth last |4th last =-4
     |fifth last  |5th last =-5
  }}
 |{{{1}}}
}}