anchor.diff:  @exit /b %ERRORLEVEL%
   
   set CMD "Cmd" -option constant
  +set LUA64URL "https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Dynamic/lua-5.3.4_Win64_dllw4_lib.zip/download" -option constant
  +set LUA32URL "https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Dynamic/lua-5.3.4_Win32_dllw4_lib.zip/download" -option constant
   
   Set-PSDebug -strict
   $VerbosePreference = "Continue"
  
positive.code:     Do-Copy (Join-Path $folder lua53.dll) .
  }
  
  function Get-Lua64{
      Get-Lua "https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Dynamic/lua-5.3.4_Win64_dllw4_lib.zip/download" "amd64"
  }
  
  function Get-Lua32{
      Get-Lua "https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Dynamic/lua-5.3.4_Win32_dllw4_lib.zip/download" "386"
  }
  
  function Split-LikeShell($s){
      $rx = [regex]'"[^"]*"'
      while( $true ){
  
negative.code:         }
      }
      "get-lua64" {
          Get-Lua $LUA64URL "amd64"
      }
      "get-lua32" {
          Get-Lua $LUA32URL "386"
      }
      "get-lua" {
          if( (Get-GoArch) -eq "amd64" ){
              Get-Lua $LUA64URL "amd64"
          }else{
              Get-Lua $LUA32URL "386"
          }
      }
      "help" {
  