Class: HerbNodeRetainingTextNode

Inherits:
HerbNodeRetainingNode show all
Includes:
TextNode
Defined in:
lib/nodes/herb_node_retaining_text_node.rb

Instance Method Summary collapse

Methods included from TextNode

#amount_of_ending_whitespace, #amount_of_starting_whitespace, #contains_alpha_characters?, #has_leading_or_trailing_whitespace?, #has_variables?, #html?, #remove_leading_and_trailing_whitespace, #strip_whitespace?, #text?, #top_level?, #white_space?

Methods included from NodeProcessing

#flatten

Methods included from BaseNode

#shatter?, #shattered_node_list

Methods inherited from HerbNodeRetainingNode

#<<, #initialize, #nodes, #text_value

Constructor Details

This class inherits a constructor from HerbNodeRetainingNode

Instance Method Details

#add_all(nodes) ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 4

def add_all( nodes )
  nodes.each do |node|
    self << node
  end
end

#break_out_start_and_end_tags ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 31

def break_out_start_and_end_tags
  if( last_tag_does_not_match_first_tag? )
    end_tag = extract_trailing_tag
    start_tag = HerbNodeRetainingTextNode.new
    start_tag.add_all( nodes[0..nodes.length - (end_tag.nodes.length + 1 ) ] )
    [start_tag, end_tag]          
  elsif( find_first_non_whitespace_node.node_name == "html_start_tag" && find_last_non_whitespace_node.node_name == "html_end_tag"  ) && ( can_remove_starting_or_ending_html_tags? )
    start_tag = extract_leading_tag
    end_tag = extract_trailing_tag
    middle_tag = HerbNodeRetainingTextNode.new
    middle_tag.add_all( nodes[start_tag.nodes.length..nodes.length - (end_tag.nodes.length + 1 ) ] )
    [start_tag, middle_tag, end_tag]
  elsif(find_last_non_whitespace_node.node_name == "html_start_tag")
    end_tag = extract_trailing_tag
    start_tag = HerbNodeRetainingTextNode.new
    start_tag.add_all( nodes[0..nodes.length - (end_tag.nodes.length + 1 ) ] )
    [start_tag, end_tag]
  elsif(find_first_non_whitespace_node.node_name == "html_end_tag" || find_first_non_whitespace_node.node_name == "erb_block_end")
    start_tag = extract_leading_tag
    end_tag = HerbNodeRetainingTextNode.new
    end_tag.add_all( nodes[start_tag.nodes.length..nodes.length ] )
    [start_tag, end_tag]
  else
    [self]
  end
end

#build_correct_node_retaining_node(array_of_nodes) ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 111

def build_correct_node_retaining_node( array_of_nodes )
  text_retaining_node = false
  array_of_nodes.each do |node|
    text_retaining_node = true if node.is_a?(TextNode) && node.contains_alpha_characters?
  end

  if( text_retaining_node )
    to_return = HerbNodeRetainingTextNode.new
    to_return.add_all( array_of_nodes )
  else
    to_return = HerbNodeRetainingNonTextNode.create_from_nodes( array_of_nodes )
  end

  to_return
end

#can_be_combined? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 133

def can_be_combined?
  true
end

#can_be_exploded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 127

def can_be_exploded?
  # it is possible that this node contains only non text nodes.  If
  # there is no text within this combined node then this should be uncombined
  contains_list_of_elements? || contains_only_non_text_and_non_method_nodes?
end

#can_remove_starting_or_ending_html_tags? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 10

def can_remove_starting_or_ending_html_tags?
  if( find_first_non_whitespace_node.node_name == "html_start_tag" && find_last_non_whitespace_node.node_name == "html_end_tag"  )
    if( find_first_non_whitespace_node.tag_name.text_value == find_last_non_whitespace_node.tag_name.text_value )
      true
    elsif( last_tag_does_not_match_first_tag? )
      true
    else
      false
    end
  elsif( find_last_non_whitespace_node.node_name == "html_start_tag" || find_first_non_whitespace_node.node_name == "html_end_tag" || find_first_non_whitespace_node.node_name == "erb_block_end" )
    true
  else
    false
  end
  
end

#explode ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 69

def explode
  nested_level = nesting_level
  to_return = []
  current_nest = 0
  new_node_list = nil
  
  # Go through and try to build rolled up nodes for all of the node
  # contents that are below the nested list level
  nodes.each do |current_node|
    if( current_node.node_name == "html_start_tag" )
      current_nest += 1
      if( new_node_list.nil? )
        to_return << current_node
      else
        new_node_list << current_node
      end
      if( current_nest == nesting_level + 1 )
        new_node_list = []
      end
    elsif( current_node.node_name == "html_end_tag" )
      if( current_nest == nesting_level + 1 )          
        to_return << build_correct_node_retaining_node( new_node_list )
        to_return << current_node
        new_node_list = nil
      elsif( new_node_list.nil? )
        to_return << current_node
      else
        new_node_list << current_node
      end
      current_nest -= 1
    elsif( new_node_list.nil? )
      to_return << current_node
    elsif( !new_node_list.nil?)
      new_node_list << current_node
    end

  end
  to_return << build_correct_node_retaining_node( new_node_list ) unless new_node_list.nil?   
  
  return to_return
end

#extract_text(text_extractor, node_tree) ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 59

def extract_text( text_extractor, node_tree )
  self.nodes.each do |node|
    if( node.is_a?( MethodCallNode ) )
      node.extract_text( text_extractor, node_tree, self.nodes )
    else
      node.extract_text( text_extractor, node_tree )
    end
  end
end

#find_first_non_whitespace_node ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 141

def find_first_non_whitespace_node
  nodes.each do |node|
    return node unless node.text_value.strip.empty?
  end
end

#find_last_non_whitespace_node ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 147

def find_last_non_whitespace_node
  nodes.reverse.each do |node|
    return node unless node.text_value.strip.empty?
  end
end

#last_tag_does_not_match_first_tag? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 27

def last_tag_does_not_match_first_tag?
  find_last_non_whitespace_node.node_name == "html_end_tag" && find_first_non_whitespace_node.node_name == "html_start_tag" && find_last_non_whitespace_node.tag_name.text_value.downcase != find_first_non_whitespace_node.tag_name.text_value.downcase
end

#to_s ⇒ Object 



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# File 'lib/nodes/herb_node_retaining_text_node.rb', line 137

def to_s
  @text_value
end