# File lib/rdoc/parser.rb, line 199 def self.use_markup content markup = content.lines.first(3).grep(/markup:\s+(\w+)/) { $1 }.first return unless markup return RDoc::Parser::Ruby if markup == 'tomdoc' markup = Regexp.escape markup RDoc::Parser.parsers.find do |_, parser| /^#{markup}$/i =~ parser.name.sub(/.*:/, '') end.last end