Handle common directives that can occur in a block of text:
: include : filename
Look for common options in a chunk of text. Options that we don't handle are passed back to our caller as |directive, param|
# File rdoc/markup/simple_markup/preprocess.rb, line 20 def handle(text) text.gsub!(/^([ \t#]*):(\w+):\s*(.+)?\n/) do prefix = $1 directive = $2.downcase param = $3 case directive when "include" filename = param.split[0] include_file(filename, prefix) else yield(directive, param) end end end