|         |      1  | 
|         |      2  | 
|         |      3 def urbanmain() = { | 
|         |      4   import C3b._ | 
|         |      5  | 
|         |      6  | 
|         |      7   assert(syard(split("3 + 4 * ( 2 - 1 )")) == List("3", "4", "2", "1", "-", "*", "+")) | 
|         |      8   assert(syard(split("( ( ( 3 ) ) + ( ( 4 + ( 5 ) ) ) )")) == List("3", "4", "5", "+", "+")) | 
|         |      9   assert(syard(split("5 + 7 / 2")) == List("5", "7", "2", "/", "+")) | 
|         |     10   assert(syard(split("5 * 7 / 2")) == List("5", "7", "*", "2", "/")) | 
|         |     11   assert(syard(split("3 + 4 * 8 / ( 5 - 1 ) ^ 2 ^ 3")) == List("3", "4", "8", "*", "5", "1", "-", "2", "3", "^", "^", "/", "+")) | 
|         |     12  | 
|         |     13   assert(compute(syard(split("3 + 4 * ( 2 - 1 )"))) == 7) | 
|         |     14   assert(compute(syard(split("10 + 12 * 33"))) == 406) | 
|         |     15   assert(compute(syard(split("( 5 + 7 ) * 2"))) == 24) | 
|         |     16   assert(compute(syard(split("5 + 7 / 2"))) == 8) | 
|         |     17   assert(compute(syard(split("5 * 7 / 2"))) == 17) | 
|         |     18   assert(compute(syard(split("9 + 24 / ( 7 - 3 )"))) == 15) | 
|         |     19   assert(compute(syard(split("4 ^ 3 ^ 2"))) == 262144) | 
|         |     20   assert(compute(syard(split("4 ^ ( 3 ^ 2 )"))) == 262144) | 
|         |     21   assert(compute(syard(split("( 4 ^ 3 ) ^ 2"))) == 4096) | 
|         |     22   assert(compute(syard(split("( 3 + 1 ) ^ 2 ^ 3"))) == 65536) | 
|         |     23 } |