Swan Programming Language

Swan       

Elegant Programming Language

Compiled, indented

Statically typed

It has different syntax for assignment operator

a - b | a instead of a = a - b

.swn extension


module euclid

    fun int a, int b | euclid int   // subroutine declaration

          while b != 0

                 if a > b
                      a - b | a
                 
                 else
                      b - a | b
                 
          // while

          return a

    // subroutine

    main

           int a, b // type can be on left or right side of variable

           in | a b | euclid | out

           // combined input output
          // a b | euclid - subroutine call