Class: Slamdown::Parsing::ParsedNodeAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/slamdown/parsing/parsed_node_adapter.rb

Overview

Projects Kramdown elements into immutable Slamdown nodes while removing only dependency-specific representation details from the parser boundary.

Constant Summary collapse

SEMANTIC_KINDS = 
{
	:p => :paragraph,
	:header => :heading,
	:blockquote => :blockquote,
	:codeblock => :code_block,
	:ul => :unordered_list,
	:ol => :ordered_list,
	:li => :list_item,
	:dl => :definition_list,
	:dt => :definition_term,
	:dd => :definition_description,
	:hr => :horizontal_rule,
	:table => :table,
	:thead => :table_head,
	:tbody => :table_body,
	:tfoot => :table_foot,
	:tr => :table_row,
	:td => :table_cell,
	:a => :link,
	:br => :line_break,
	:img => :image,
	:codespan => :code_span,
	:em => :emphasis,
	:strong => :strong,
	:math => :math
}.freeze
NON_ELEMENT_KINDS = 
{
	:root => :document,
	:text => :text,
	:raw => :raw,
	:xml_comment => :comment,
	:xml_pi => :processing_instruction,
	:entity => :entity,
	:typographic_sym => :typographic_symbol,
	:smart_quote => :smart_quote
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.adapt(root) ⇒ Object 



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# File 'lib/slamdown/parsing/parsed_node_adapter.rb', line 47

def adapt(root)
	new.adapt_node(root)
end

Instance Method Details

#adapt_node(element, parent_type: nil, final_root_child: false) ⇒ Object

Recursively copies only fields that belong to Slamdown's parser contract.



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# File 'lib/slamdown/parsing/parsed_node_adapter.rb', line 53

def adapt_node(element, parent_type: nil, final_root_child: false)
	source_name = explicit_source_name(element)
	children = element.children.each_with_index.map do |child, index|
		adapt_node(
			child,
			:parent_type => element.type,
			:final_root_child => element.type == :root && index == element.children.length - 1
		)
	end.freeze

	Node.new(
		:kind => NON_ELEMENT_KINDS.fetch(element.type, :element),
		:source_name => source_name,
		:semantic_kind => SEMANTIC_KINDS[element.type],
		:category => ::Kramdown::Element.category(element),
		:content_model => element.options[:content_model],
		:value => adapted_value(element, parent_type, final_root_child),
		:attributes => adapted_attributes(element),
		:children => children,
		:properties => adapted_properties(element),
		:source_form => adapted_source_form(element),
		:synthetic => synthetic_element?(element, source_name)
	)
end