Class: Utopia::Content::Processor

Inherits:
Object
  • Object
show all
Defined in:
lib/utopia/content/processor.rb

Defined Under Namespace

Classes: UnbalancedTagError

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(delegate) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/utopia/content/processor.rb', line 56

def initialize(delegate)
  @delegate = delegate
  @stack = []

  @parser = Trenni::Parser.new(self)
end

Class Method Details

.parse_xml(xml_data, delegate) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 29

def self.parse_xml(xml_data, delegate)
  processor = self.new(delegate)
  
  processor.parse(xml_data)
end

Instance Method Details

#attribute(name, value) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 118

def attribute(name, value)
  @stack.last[0].attributes[name] = value
end

#begin_parse(scanner) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 73

def begin_parse(scanner)
  @scanner = scanner
end

#begin_tag(tag_name, begin_tag_type) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 89

def begin_tag(tag_name, begin_tag_type)
  if begin_tag_type == :opened
    @stack << [Tag.new(tag_name, {}), @scanner.pos]
  else
    current_tag, current_position = @stack.pop

    if tag_name != current_tag.name
      raise UnbalancedTagError.new(@scanner, current_position, current_tag.name, tag_name)
    end

    @delegate.tag_end(current_tag)
  end
end

#cdata(text) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 81

def cdata(text)
  @delegate.cdata(Trenni::Strings::to_html(text))
end

#comment(text) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 85

def comment(text)
  @delegate.cdata("<!#{text}>")
end

#finish_tag(begin_tag_type, end_tag_type) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 103

def finish_tag(begin_tag_type, end_tag_type)
  if begin_tag_type == :opened # <...
    if end_tag_type == :closed # <.../>
      cur, pos = @stack.pop
      cur.closed = true

      @delegate.tag_complete(cur)
    elsif end_tag_type == :opened # <...>
      cur, pos = @stack.last

      @delegate.tag_begin(cur)
    end
  end
end

#instruction(content) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 122

def instruction(content)
  cdata("<?#{content}?>")
end

#parse(input) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 63

def parse(input)
  @parser.parse(input)
  
  unless @stack.empty?
    current_tag, current_position = @stack.pop
    
    raise UnbalancedTagError.new(@scanner, current_position, current_tag.name, 'EOF')
  end
end

#text(text) ⇒ Object 



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# File 'lib/utopia/content/processor.rb', line 77

def text(text)
  @delegate.cdata(text)
end