module ActionView
module ActionView::Helpers
module ActionView::Helpers::CaptureHelper
module ActionView::Helpers::FormHelper
module ActionView::Helpers::FormTagHelper
module ActionView::Helpers::TagHelper
module ActionView::Helpers::TextHelper
module Haml
module Haml::Exec
module Haml::Filters
module Haml::Filters::Base
module Haml::Filters::Cdata
module Haml::Filters::Css
module Haml::Filters::Erb
module Haml::Filters::Escaped
module Haml::Filters::Javascript
module Haml::Filters::Plain
module Haml::Filters::PrecompiledTiltFilter
module Haml::Filters::Preserve
module Haml::Filters::Ruby
module Haml::Filters::TiltFilter
module Haml::Helpers
module Haml::Helpers::ActionViewExtensions
module Haml::Helpers::XssMods
module Haml::Template
module Haml::Util
class ActionView::Base
class ActionView::Helpers::InstanceTag
class Haml::Buffer
class Haml::Compiler
class Haml::Engine
class Haml::Error
class Haml::Exec::Generic
class Haml::Exec::Haml
class Haml::Filters::SassRailsTemplate
class Haml::Filters::ScssRailsTemplate
class Haml::Helpers::ErrorReturn
class Haml::Options
class Haml::Parser
class Haml::Parser::Line
class Haml::Parser::ParseNode
class Haml::Plugin
class Haml::Railtie
class Haml::SafeErubisTemplate
class Haml::SyntaxError
class Haml::Util::StaticConditionalContext
class Object
haml
4.0.0
# html?
(Boolean)
def html? html4? or html5? end