PrimaryExpr

# File lib/rexml/parsers/xpathparser.rb, line 580
      def PrimaryExpr path, parsed
        arry = []
        case path
        when VARIABLE_REFERENCE
          varname = $1
          path = $'
          parsed << :variable
          parsed << varname
          #arry << @variables[ varname ]
        when /^(\w[-\w]*)(?:\()/
          #puts "PrimaryExpr :: Function >>> #$1 -- '#$''"
          fname = $1
          tmp = $'
          #puts "#{fname} =~ #{NT.inspect}"
          return path if fname =~ NT
          path = tmp
          parsed << :function
          parsed << fname
          path = FunctionCall(path, parsed)
        when NUMBER
          #puts "LITERAL or NUMBER: #$1"
          varname = $1.nil? ? $2 : $1
          path = $'
          parsed << :literal 
          parsed << (varname.include?('.') ? varname.to_f : varname.to_i)
        when LITERAL
          #puts "LITERAL or NUMBER: #$1"
          varname = $1.nil? ? $2 : $1
          path = $'
          parsed << :literal 
          parsed << varname
        when /^\(/                                               #/
          path, contents = get_group(path)
          contents = contents[1..-2]
          n = []
          OrExpr( contents, n )
          parsed.concat(n)
        end
        path
      end