From: dkmd_nielsen <donn@...>
Date: 2007-05-18T00:20:04+09:00
Subject: Seeking C# references about Ruby Code block functionality

I have two rather simple class methods coded in Ruby...my own each
iterator:

   # Loop through each instruction in the block, yielding the result
from
   # the specified code block.
   def each(&logic)
      @instructions.each {|instr| yield instr}
   end

   # Find the specified instruction parm (string) in the block.
Returns
   # nil if parm not found.
   def find(p)
      self.each {|i| return i if i.parm.index(p) }
      nil
   end

I'm trying to recode this exact functionality in C#, and am just not
getting the Delegate stuff.  Can you direct me to some online examples
or references that show how to pass a delegate into method that
implements an iterator?  I'm just not getting all the new C#
terminology and syntax complexities, and I need to learn it.  MSDN
isn't helping me at all.  The following is quasi psuedo mock up of
what I'm trying to accomplish.

        public void each(Delegate block)
        {
            foreach (FL_Instruction i in this.Instructions)
            {
                block;
            }
        }

        public static FL_Instruction find(string parm)
        {
            FindParm fp = delegate(FL_Instruction i) { if
(i.Parm.IndexOf(parm) > 0) { return i; } };
            this.each(fp);
            return null;
        }

Thanks for your time and consideration,
dvn