+ # 8.2.4.44 http://www.w3.org/TR/html5/syntax.html#bogus-comment-state
+ # WARNING: put a comment token in tok_cur_tag before setting this state
+ tok_state_bogus_comment = ->
+ next_gt = txt.indexOf '>', cur
+ if next_gt is -1
+ val = txt.substr cur
+ cur = txt.length
+ else
+ val = txt.substr cur, (next_gt - cur)
+ cur = next_gt + 1
+ val = val.replace "\u0000", "\ufffd"
+ tok_cur_tag.text += val
+ tok_state = tok_state_data
+ return tok_cur_tag
+
+ # 8.2.4.45 http://www.w3.org/TR/html5/syntax.html#markup-declaration-open-state
+ tok_state_markup_declaration_open = ->
+ if txt.substr(cur, 2) is '--'
+ cur += 2
+ tok_cur_tag = new_comment_token ''
+ tok_state = tok_state_comment_start
+ return
+ if txt.substr(cur, 7).toLowerCase() is 'doctype'
+ cur += 7
+ tok_state = tok_state_doctype
+ return
+ acn = adjusted_current_node()
+ if acn and acn.namespace isnt NS_HTML and text.substr(cur, 7) is '[CDATA['
+ cur += 7
+ tok_state = tok_state_cdata_section
+ return
+ # Otherwise
+ parse_errer()
+ tok_cur_tag = new_comment_token '!' # TODO test ("!" right?)
+ tok_state = tok_state_bogus_comment
+ return
+
+ # 8.2.4.46 http://www.w3.org/TR/html5/syntax.html#comment-start-state
+ tok_state_comment_start = ->
+ switch c = txt.charAt(cur++)
+ when '-'
+ tok_state = tok_state_comment_start_dash
+ when "\u0000"
+ parse_error()
+ return new_character_token "\ufffd"
+ when '>'
+ parse_error()
+ tok_state = tok_state_data
+ return tok_cur_tag
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ tok_cur_tag.text += c
+ return null
+
+ # 8.2.4.47 http://www.w3.org/TR/html5/syntax.html#comment-start-dash-state
+ tok_state_comment_start_dash = ->
+ switch c = txt.charAt(cur++)
+ when '-'
+ tok_state = tok_state_comment_end
+ when "\u0000"
+ parse_error()
+ tok_cur_tag.text += "-\ufffd"
+ tok_state = tok_state_comment
+ when '>'
+ parse_error()
+ tok_state = tok_state_data
+ return tok_cur_tag
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ tok_cur_tag.text += "-#{c}"
+ tok_state = tok_state_comment
+ return null
+
+ # 8.2.4.48 http://www.w3.org/TR/html5/syntax.html#comment-state
+ tok_state_comment = ->
+ switch c = txt.charAt(cur++)
+ when '-'
+ tok_state = tok_state_comment_end_dash
+ when "\u0000"
+ parse_error()
+ tok_cur_tag.text += "\ufffd"
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ tok_cur_tag.text += c
+ return null
+
+ # 8.2.4.49 http://www.w3.org/TR/html5/syntax.html#comment-end-dash-state
+ tok_state_comment_end_dash = ->
+ switch c = txt.charAt(cur++)
+ when '-'
+ tok_state = tok_state_comment_end
+ when "\u0000"
+ parse_error()
+ tok_cur_tag.text += "-\ufffd"
+ tok_state = tok_state_comment
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ tok_cur_tag.text += "-#{c}"
+ tok_state = tok_state_comment
+ return null
+
+ # 8.2.4.50 http://www.w3.org/TR/html5/syntax.html#comment-end-state
+ tok_state_comment_end = ->
+ switch c = txt.charAt(cur++)
+ when '>'
+ tok_state = tok_state_data
+ return tok_cur_tag
+ when "\u0000"
+ parse_error()
+ tok_cur_tag.text += "--\ufffd"
+ tok_state = tok_state_comment
+ when '!'
+ parse_error()
+ tok_state = tok_state_comment_end_bang
+ when '-'
+ parse_error()
+ tok_cur_tag.text += '-'
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ parse_error()
+ tok_cur_tag.text += "--#{c}"
+ tok_state = tok_state_comment
+ return null
+
+ # 8.2.4.51 http://www.w3.org/TR/html5/syntax.html#comment-end-bang-state
+ tok_state_comment_end_bang = ->
+ switch c = txt.charAt(cur++)
+ when '-'
+ tok_cur_tag.text += "--!#{c}"
+ tok_state = tok_state_comment_end_dash
+ when '>'
+ tok_state = tok_state_data
+ return tok_cur_tag
+ when "\u0000"
+ parse_error()
+ tok_cur_tag.text += "--!\ufffd"
+ tok_state = tok_state_comment
+ when '' # EOF
+ parse_error()
+ tok_state = tok_state_data
+ cur -= 1 # Reconsume
+ return tok_cur_tag
+ else
+ tok_cur_tag.text += "--!#{c}"
+ tok_state = tok_state_comment
+ return null
+
+