72 lines
2.2 KiB
Python
72 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright(C) 2010-2011 Christophe Benz, Romain Bignon
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#
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# This file is part of weboob.
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#
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# weboob is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# weboob is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with weboob. If not, see <http://www.gnu.org/licenses/>.
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import logging
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__all__ = ['get_parser', 'NoParserFound']
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class NoParserFound(Exception): pass
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def load_lxml():
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from .lxmlparser import LxmlHtmlParser
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return LxmlHtmlParser
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def load_lxmlsoup():
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from .lxmlsoupparser import LxmlSoupParser
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return LxmlSoupParser
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def load_html5lib():
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from .html5libparser import Html5libParser
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return Html5libParser
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def load_elementtidy():
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from .elementtidyparser import ElementTidyParser
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return ElementTidyParser
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def load_builtin():
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from .htmlparser import HTMLParser
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return HTMLParser
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def load_json():
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# This parser doesn't read HTML, don't include it in the
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# preference_order default value below.
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from .jsonparser import JsonParser
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return JsonParser
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def get_parser(preference_order=('lxml', 'lxmlsoup', 'html5lib', 'elementtidy', 'builtin')):
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"""
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Get a parser from a preference order list.
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This allows Weboob to run on systems without lxml, which is the default parser.
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Return a parser implementing IParser.
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"""
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if not isinstance(preference_order, (tuple, list)):
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preference_order = [preference_order]
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for kind in preference_order:
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if not 'load_%s' % kind in globals():
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continue
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try:
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return globals()['load_%s' % kind]()
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except ImportError:
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logging.debug('%s is not installed.' % kind)
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raise NoParserFound("No parser found (%s)" % ','.join(preference_order))
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