def def_default_whitespace(parser, space_label='k_space', space_regex=
    '[ \\t]+', newline_label='k_newline', newline_regex='[\\n\\f\\r\\v]+',
    matcher_options=None):
    """Define the standard whitespace tokens for space and newline, setting
    them as ignored tokens."""
    tok = parser.def_ignored_token
    tok(space_label, space_regex, matcher_options=matcher_options)
    tok(newline_label, newline_regex, matcher_options=matcher_options)
