OpenEuphoria

Using the "import" keyword will pull the source from the referenced file into the current scope.

-- mycode.e  
if length(mySeq) then  
  puts(1,"Yes I can!")  
end if  
  
-- main.e  
  
string mySeq = "Can you see me?"  
  
import mycode.e -- pull this code as though it exists right here so it can see mySeq 

Result:

Yes I can!