anchor.diff:  :#                                                                            #
   :#                  Good practice:                                            #
   :#                  * Use :# for comments instead of rem.                     #
  +:#                    + The # sign is the standard comment marker for most    #
  +:#                       other scripting languages.                           #
  +:#                    + This stands out better than the :: used by many.      #
   :#                    + This avoids echoing the comment in echo on mode.      #
  -:#                    + This stands out better than the :: used by many.      #
   :#                    + Gotcha: A :# comment cannot be at the last line of    #
   :#                       a ( block of code ). Use (rem :# comment) instead.   #
   :#                  * Always enquote args sent, and dequote args received.    #
  
positive.code: :#   2016-11-05 JFL Fixed :Exec bug in XP/64.				      #
  :#                  Indent sub-scripts output in debug mode.                  #
  :#   2016-11-06 JFL Updated the 10/19 errorlevel fix to work for DO and EXEC. #
  :#                                                                            #
  :#----------------------------------------------------------------------------#
  
  call :Exec.Init
  
negative.code: set "V2="
  
  setlocal DisableDelayedExpansion
  set  STRING=@^|^|^&^&(())^<^<^>^>^^^^,,;;  %%%%^!^!**??[[]]==~~''""%%CD%%_!CD!"
  call :testR2 "With DisableDelayedExpansion" "last but not least"
  %ECHO% :# In testR
  %ECHOVARS% V1 S V2
  