# coding: utf8

"""

tinycss

-------

A CSS parser, and nothing else.

:copyright: (c) 2012 by Simon Sapin.

:license: BSD, see LICENSE for more details.

"""

import sys

from .version import VERSION

__version__ = VERSION

from .css21 import CSS21Parser

from .page3 import CSSPage3Parser

PARSER_MODULES = {

'page3': CSSPage3Parser,

}

def make_parser(*features, **kwargs):

"""Make a parser object with the chosen features.

:param features:

Positional arguments are base classes the new parser class will extend.

The string ``'page3'`` is accepted as short for

:class:`~page3.CSSPage3Parser`.

:param kwargs:

Keyword arguments are passed to the parser’s constructor.

:returns:

An instance of a new subclass of :class:`CSS21Parser`

"""

if features:

bases = tuple(PARSER_MODULES.get(f, f) for f in features)

parser_class = type('CustomCSSParser', bases + (CSS21Parser,), {})

else:

parser_class = CSS21Parser

return parser_class(**kwargs)