• Category: Defining Operator
• Description: Define prefix operator
• Code (in separate Macro library):

namespace MacroLibrary1
{  
  macro @%+(a) 
  syntax ("%+", a)
  {
    <[ $a + 1 ]>
  }
}

• Code (you must include reference to macro library above):

using System;
using Nemerle;
using System.Console;
using MacroLibrary1;

def a = 9;
def r = %+a;
WriteLine(r);

• Execution Result:

10

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