anchor.diff:  }
   -------------------------------------------------------------------------------
   
  +<<<
  +
   == Unit Syntax ==
   
   This section describes the default syntax elements that are available for use
  
positive.code: 
  Then interpolating the following strings will give the associated result:
  
  [width="90%",cols="1,9",options="header"]
  |=============================================================================
  |Expression             |Resulting String
  |`$(FOO)`               |`String`
  
negative.code: 
  -------------------------------------------------------------------------------
  Build {
      Units = function()
          Program {
              Name = "HelloWorld",
              Sources = { "hello.c" },
          }
          Default "HelloWorld"
      end,
      Configs = {
          Config {
              Name = "macosx-gcc",
  