broken HTML parser FSM

parser.rb

class Node
	def initialize(xml_str)
		@name = @attributes = @content = ''
		parse(xml_str)
		p @name, @attributes, @content
	end
  
	def parse(xml_str)
		# state indicators
		inside_tag = inside_tag_name = inside_tag_attributes = false
	
		xml_str.each_char do |char|
			if char == "<"
				if not inside_tag
					# state: beginning of tag name
					inside_tag = true
					inside_tag_name = true
					inside_tag_attributes = false
				end
			elsif char == ">"
				if inside_tag
					# state: end of tag
					inside_tag = false
					inside_tag_name = false
					inside_tag_attributes = false
				end
			elsif char == ' '
				if inside_tag_name
					# state: space between tag name and attribs (or between attribs)
					inside_tag_name = false
					inside_tag_attributes = true
				end
			elsif char == '/'
				if inside_tag
					# state: beginning of closing tag name
					inside_tag_name = false
					inside_tag_attributes = false
				end
			else
				if inside_tag
					if inside_tag_name
						# state: reading tag name
						@name += char
					elsif inside_tag_attributes
						# state: reading attributes
						@attributes += char
					end
				else
					# state: reading contents
					@content += char
				end
			end
		end
	end
end

string = "<root attrib='value' attrib2=\"value2\">text</root>"
node = Node.new(string)
p node