# Parse a `EmptyElemTag | STag | ETag | Reference | CDSect | PI | Comment | CharData` production.
	#
	# If the last read byte matches the `CharData` production, push the char in
	# `char_data`. Else, flush `CharData` as a `characters` event.
	private fun expect_content_chunk(char_data: Buffer): Bool do
		if lexer.accept('<') then
			flush(char_data)
			if lexer.accept('!') then
				if lexer.accept('-') then
					return lexer.expect('-',
							" at the beginning of a comment") and
							expect_comment
				else if lexer.accept('[') then
					return expect_cd_sect
				else
					return lexer.fire_unexpected_char(
							". Expecting `--` or `[CDATA[`")
				end
			else if lexer.accept('?') then
				return expect_pi
			else if lexer.accept('/') then
				return expect_etag
			else
				return expect_stag
			end
		else if lexer.accept('&') then
			flush(char_data)
			var success = expect_reference(char_data)
			flush(char_data)
			return success
		else
			return lexer.expect_xml_char(char_data)
		end
	end