class RDoc::Generator::Darkfish

def excerpt(comment)
  text = case comment
  when RDoc::Comment
    comment.text
  else
    comment
  end
  # Match from a capital letter to the first period, discarding any links, so
  # that we don't end up matching badges in the README
  pattern = ParagraphExcerptRegexpUnicode
  begin
    first_paragraph_match = text.match(pattern)
  rescue Encoding::CompatibilityError
    # The doc is non-ASCII text and encoded in other than Unicode base encodings.
    raise if pattern == ParagraphExcerptRegexpOther
    pattern = ParagraphExcerptRegexpOther
    retry
  end
  return text[0...150].tr_s("\n", " ").squeeze(" ") unless first_paragraph_match
  extracted_text = first_paragraph_match[0]
  second_paragraph = text.match(pattern, first_paragraph_match.end(0))
  extracted_text << " " << second_paragraph[0] if second_paragraph
  extracted_text[0...150].tr_s("\n", " ").squeeze(" ")
end