Class: Asciidoctor::Converter::Base

Inherits:
Object
  • Object
show all
Includes:
Asciidoctor::Converter, Logging
Defined in:
lib/asciidoctor/converter.rb

Overview

An abstract base class for defining converters that can be used to convert AbstractNode objects in a parsed AsciiDoc document to a backend format such as HTML or DocBook.

Constant Summary

Constants included from DefaultFactory

DefaultFactory::PROVIDED

Instance Attribute Summary

Attributes included from Asciidoctor::Converter

#backend

Instance Method Summary collapse

Methods included from Asciidoctor::Converter

derive_backend_traits, #initialize

Methods included from DefaultFactory

#for, #register, #unregister_all

Methods included from Factory

#converters, #create, create, default, #for, new, #register

Methods included from Logging

#logger, #message_with_context

Instance Method Details

#content_only(node) ⇒ String

Converts the AbstractNode using only its converted content.

Returns:

  • (String) —

    Returns the converted String content.



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# File 'lib/asciidoctor/converter.rb', line 405

def content_only node
  node.content
end

#convert(node, transform = node.node_name, opts = nil) ⇒ Object

Converts an AbstractNode by delegating to a method that matches the transform value.

This method looks for a method whose name matches the transform prefixed with “convert_” to dispatch to. If the opts argument is non-nil, this method assumes the dispatch method accepts two arguments, the node and an options Hash. The options Hash may be used by converters to delegate back to the top-level converter. Currently, this feature is used for the outline transform. If the opts argument is nil, this method assumes the dispatch method accepts the node as its only argument.

See Asciidoctor::Converter#convert for details about the arguments and return value.



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# File 'lib/asciidoctor/converter.rb', line 390

def convert node, transform = node.node_name, opts = nil
  opts ? (send 'convert_' + transform, node, opts) : (send 'convert_' + transform, node)
rescue
  raise unless ::NoMethodError === (ex = $!) && ex.receiver == self && ex.name.to_s == transform
  logger.warn %(missing convert handler for #{ex.name} node in #{@backend} backend (#{self.class}))
  nil
end

#handles?(transform) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor/converter.rb', line 398

def handles? transform
  respond_to? %(convert_#{transform})
end

#skip(node) ⇒ void

This method returns an undefined value.

Skips conversion of the AbstractNode.



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# File 'lib/asciidoctor/converter.rb', line 412

def skip node; end