code: func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
  	parser.error = yaml_SCANNER_ERROR
  	parser.context = context
  	parser.context_mark = context_mark
  	parser.problem = problem
  	parser.problem_mark = parser.mark
  	return false
  }
docs: // Set the scanner error and return false.