anchor.diff:  /// of states in the DFA constructed from the Regex.
   [<RequireQualifiedAccess; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
   module Regex =
  +    /// The 'epsilon' pattern, which matches (accepts) an empty string.
  +    [<CompiledName("Epsilon")>]
  +    let epsilon : Regex =
  +        Epsilon
  +
  +    /// The regular expression which matches exactly one (1) instance of any character.
  +    [<CompiledName("Any")>]
  +    let any : Regex =
  +        Any
  +
       /// The regular expression which never matches (accepts) anything.
       [<CompiledName("Empty")>]
       let empty : Regex =
  
positive.code: type Regex =
      /// The empty string.
      | Epsilon
      /// Kleene *-closure.
      /// The specified Regex will be matched zero (0) or more times.
      | Star of Regex
  
negative.code:             CharSet.isEmpty charSet
          | _ ->
              false
  
      /// Returns a new regular expression which matches exactly one (1) instance of the specified character.
      [<CompiledName("OfCharacter")>]
  