class Utils::Finder

def search_paths(paths)
  suffixes = Array(@args[?I])
  suffixes.full? do |s|
    paths.select! { |path| s.include?(File.extname(path)[1..-1]) }
  end
  paths = paths.map! do |path|
    if match = @pattern.match(path)
      if FuzzyPattern === @pattern
        current = 0
        marked_path = ''
        score, e = path.size, nil
        for i in 1...match.size
          match[i] or next
          b = match.begin(i)
          e ||= b
          marked_path << path[current...b]
          marked_path << red(path[b, 1])
          score += (b - e) * (path.size - b)
          e = match.end(i)
          current = b + 1
        end
        marked_path << match.post_match
        [ score, path, marked_path ]
      else
        marked_path = path[0...match.begin(0)] <<
          red(path[match.begin(0)...match.end(0)]) <<
          path[match.end(0)..-1]
        [ 0, path, marked_path ]
      end
    end
  end
  paths.compact!
  @paths, @output = paths.sort.transpose.values_at(-2, -1)
  if n = @args[?n]&.to_i
    @paths = @paths&.first(n) || []
    @output = @output&.first(n) || []
  end
  self
end