# File lib/ihelp.rb, line 499
499:     def initialize(args = (ENV["RI"] || "").split)
500:       @options = RI::Options.instance
501:       @options.parse(args)
502: 
503:       paths =  (if RUBY_VERSION > "1.8.4"
504:                   @options.doc_dir
505:                 else
506:                   @options.paths
507:                 end) || RI::Paths::PATH
508:       if paths.empty?
509:         report_missing_documentation(paths)
510:       end
511:       @ri_reader = RI::RiReader.new(RI::RiCache.new(paths))
512:       @display   = @options.displayer
513:     end

     # File lib/ihelp.rb, line 538
538:     def display_info(info)
539:       case [info.class] # only info.class doesn't work
540:       when [RI::ClassDescription]
541:         @display.display_class_info(info, @ri_reader)
542:       when [RI::MethodDescription]
543:         @display.display_method_info(info)
544:       end
545:     end

     # File lib/ihelp.rb, line 549
549:     def get_class_info_str(namespaces, klass_name)
550:       return nil if namespaces.empty?
551:       klass_name_last = klass_name.split("::").last
552:       klass = nil
553:       namespaces.find{|ns|
554:         begin
555:           ns.name == klass_name_last and
556:           klass = @ri_reader.get_class(ns)
557:         rescue TypeError
558:           nil
559:         end
560:       }
561:       klass
562:     end

     # File lib/ihelp.rb, line 517
517:     def get_info_str(klass_name, method_name = nil, instance = false)
518:       is_class_method = (not instance)
519:       top_level_namespace = @ri_reader.top_level_namespace
520:       namespaces = klass_name.split(/::/).inject(top_level_namespace){
521:         |ns, current_name|
522:         @ri_reader.lookup_namespace_in(current_name, ns)
523:       }
524:       return nil if namespaces.empty?
525:       if method_name.nil?
526:         get_class_info_str(namespaces, klass_name)
527:       else
528:         methods = @ri_reader.find_methods(
529:                     method_name, is_class_method, namespaces)
530:         return nil if methods.empty?
531:         get_method_info_str(method_name, methods)
532:       end
533:     end

     # File lib/ihelp.rb, line 566
566:     def get_method_info_str(requested_method_name, methods)
567:       entries = methods.find_all {|m| m.name == requested_method_name}
568:       return nil if entries.empty?
569:       method = nil
570:       entries.find{|entry| method = @ri_reader.get_method(entry)}
571:       method
572:     end