find_const_comment

# File lib/rdoc/parser/c.rb, line 393
  def find_const_comment(type, const_name)
    if @content =~ %{((?>^\s*/\*.*?\*/\s+))
                   rb_define_#{type}\((?:\s*(\w+),)?\s*"#{const_name}"\s*,.*?\)\s*;}mi
      $1
    elsif @content =~ %{Document-(?:const|global|variable):\s#{const_name}\s*?\n((?>.*?\*/))}
      $1
    else
      ''
    end
  end