Class: HTML5::ContentAttrParser

Inherits:
Object
  • Object
show all
Defined in:
lib/html5/inputstream.rb

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ ContentAttrParser

Returns a new instance of ContentAttrParser.



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# File 'lib/html5/inputstream.rb', line 689

def initialize(data)
  @data = data
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/html5/inputstream.rb', line 693

def parse
  begin
    #Skip to the first ";"
    @data.position = 0
    @data.jump_to(';')
    @data.position += 1
    @data.skip
    #Check if the attr name is charset 
    #otherwise return
    @data.jump_to('charset')
    @data.position += 1
    @data.skip
    unless @data.current_byte == '='
      #If there is no = sign keep looking for attrs
      return nil
    end
    @data.position += 1
    @data.skip
    #Look for an encoding between matching quote marks
    if ['"', "'"].include?(@data.current_byte)
      quote_mark = @data.current_byte
      @data.position += 1
      old_position = @data.position
      @data.jump_to(quote_mark)
      return @data[old_position ... @data.position]
    else
      #Unquoted value
      old_position = @data.position
      begin
        @data.find_next(SPACE_CHARACTERS)
        return @data[old_position ... @data.position]
      rescue EOF
        #Return the whole remaining value
        return @data[old_position .. -1]
      end
    end
  rescue EOF
    return nil
  end
end