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# File 'lib/phlex/sgml/elements.rb', line 43
def register_element(method_name, tag: method_name.name.tr("_", "-"))
class_eval(<<~RUBY, __FILE__, __LINE__ + 1)
# frozen_string_literal: true
def #{method_name}(**attributes)
state = @_state
buffer = state.buffer
block_given = block_given?
unless state.should_render?
yield(self) if block_given
return nil
end
if attributes.length > 0 # with attributes
if block_given # with content block
buffer << "<#{tag}"
begin
#{COMMA_SEPARATED_TOKENS[method_name]}
buffer << (Phlex::ATTRIBUTE_CACHE[attributes] ||= __attributes__(attributes))
ensure
buffer << ">"
end
begin
original_length = buffer.bytesize
content = yield(self)
if original_length == buffer.bytesize
case content
when ::Phlex::SGML::SafeObject
buffer << content.to_s
when String
buffer << ::Phlex::Escape.html_escape(content)
when Symbol
buffer << ::Phlex::Escape.html_escape(content.name)
when nil
nil
else
if (formatted_object = format_object(content))
buffer << ::Phlex::Escape.html_escape(formatted_object)
end
end
end
ensure
buffer << "</#{tag}>"
end
else # without content
buffer << "<#{tag}"
begin
#{COMMA_SEPARATED_TOKENS[method_name]}
buffer << (::Phlex::ATTRIBUTE_CACHE[attributes] ||= __attributes__(attributes))
ensure
buffer << "></#{tag}>"
end
end
else # without attributes
if block_given # with content block
buffer << "<#{tag}>"
begin
original_length = buffer.bytesize
content = yield(self)
if original_length == buffer.bytesize
case content
when ::Phlex::SGML::SafeObject
buffer << content.to_s
when String
buffer << ::Phlex::Escape.html_escape(content)
when Symbol
buffer << ::Phlex::Escape.html_escape(content.name)
when nil
nil
else
if (formatted_object = format_object(content))
buffer << ::Phlex::Escape.html_escape(formatted_object)
end
end
end
ensure
buffer << "</#{tag}>"
end
else # without content
buffer << "<#{tag}></#{tag}>"
end
end
#{'flush' if tag == 'head'}
nil
end
RUBY
__registered_elements__[method_name] = tag
method_name
end
|