do_classes

# File lib/rdoc/parser/c.rb, line 220
  def do_classes
    @content.scan(/(\w+)\s* = \s*rb_define_module\s*\(\s*"(\w+)"\s*\)/x) do
      |var_name, class_name|
      handle_class_module(var_name, "module", class_name, nil, nil)
    end

    # The '.' lets us handle SWIG-generated files
    @content.scan(/([\w\.]+)\s* = \s*rb_define_class\s*
              \(
                 \s*"(\w+)",
                 \s*(\w+)\s*
              \)/x) do |var_name, class_name, parent|
      handle_class_module(var_name, "class", class_name, parent, nil)
    end

    @content.scan(/(\w+)\s*=\s*boot_defclass\s*\(\s*"(\w+?)",\s*(\w+?)\s*\)/) do
      |var_name, class_name, parent|
      parent = nil if parent == "0"
      handle_class_module(var_name, "class", class_name, parent, nil)
    end

    @content.scan(/(\w+)\s* = \s*rb_define_module_under\s*
              \(
                 \s*(\w+),
                 \s*"(\w+)"
              \s*\)/x) do |var_name, in_module, class_name|
      handle_class_module(var_name, "module", class_name, nil, in_module)
    end

    @content.scan(/([\w\.]+)\s* =                  # var_name
                   \s*rb_define_class_under\s*
                   \(
                     \s* (\w+),                    # under
                     \s* "(\w+)",                  # class_name
                     \s*
                     (?:
                       ([\w\*\s\(\)\.\->]+) |      # parent_name
                       rb_path2class\("([\w:]+)"\) # path
                     )
                     \s*
                   \)
                  /x) do |var_name, under, class_name, parent_name, path|
      parent = path || parent_name

      handle_class_module var_name, 'class', class_name, parent, under
    end

    @content.scan(/([\w\.]+)\s* = \s*rb_singleton_class\s*
                  \(
                    \s*(\w+)
                  \s*\)/x) do |sclass_var, class_var|
      handle_singleton sclass_var, class_var
    end
  end