Class: SergioSax

Inherits:
Nokogiri::XML::SAX::Document
  • Object
show all
Defined in:
lib/sergio/sergio_sax.rb

Instance Method Summary collapse

Constructor Details

#initialize(object) ⇒ SergioSax

Returns a new instance of SergioSax.



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# File 'lib/sergio/sergio_sax.rb', line 2

def initialize(object)
  @stack = []
  @object = object
  @current_configs = []
  @parent_callbacks = []
end

Instance Method Details

#cdata_block(string) ⇒ Object 



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# File 'lib/sergio/sergio_sax.rb', line 28

def cdata_block(string)
  characters(string)
end

#characters(string) ⇒ Object 



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# File 'lib/sergio/sergio_sax.rb', line 23

def characters(string)
  name, attrs = @stack.last
  attrs['@text'] = attrs.fetch('@text', '') + string
end

#end_element(name) ⇒ Object 



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# File 'lib/sergio/sergio_sax.rb', line 32

def end_element(name)
  current_configs = @object.class.sergio_config.get_element_configs(@stack)
  name, attrs = @stack.pop
  if current_configs
    current_configs.each do |c|
      attr = c.options[:attribute]
      val = attrs[attr]
      callback = c.callback

      if val && !c.aggregate_element
        r = if callback.arity == 1
          callback.call(val)
        elsif callback.arity == 2
          attrs.delete('@text')
          callback.call(val, attrs)
        end

        #only builds parent elements if at least one of their child elements has a match
        @parent_callbacks.each do |c|
          c.call
        end
        @parent_callbacks = []

        #build an array of hashes if return value from callback is a hash
        @object.sergio_parsed_document.set_element(c.new_path, {}, c.options) if r.is_a?(Hash)
        @object.sergio_parsed_document.set_element(c.new_path, r, c.options)
      end
    end
  end
  @parent_callbacks = []
end

#start_element(name, attrs = []) ⇒ Object 



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# File 'lib/sergio/sergio_sax.rb', line 9

def start_element(name, attrs = [])
  attrs = Hash[*attrs.flatten]
  @stack << [name, attrs]
  if current_configs = @object.class.sergio_config.get_element_configs(@stack)
    current_configs.each do |c|
      if c.aggregate_element
        @parent_callbacks << lambda do
          @object.sergio_parsed_document.set_element(c.new_path, {}, c.options)
        end
      end
    end
  end
end