parse

# File lib/rdoc/rd.rb, line 78
  def self.parse rd
    rd = rd.lines.to_a

    if rd.find { |i| /\S/ === i } and !rd.find{|i| /^=begin\b/ === i } then
      rd.unshift("=begin\n").push("=end\n")
    end

    parser = RDoc::RD::BlockParser.new
    document = parser.parse rd

    # isn't this always true?
    document.parts.shift if RDoc::Markup::BlankLine === document.parts.first
    document.parts.pop   if RDoc::Markup::BlankLine === document.parts.last

    document
  end