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# __init__.py - general content-type parser interface
#
# Copyright (C) 2005 Arthur de Jong
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""This package groups all the supported content-types.
A content-type module can be requested by the get_parsemodule() function.
Each module should export the following function:
parse(content,link)
Based on the content fill in the common fields of the link object."""
# the modules that should be imported
_modules = ('html', 'css')
# a map of mimetypes to modules
_parsermodules = {}
def _init_modules():
"""Initialize the modules."""
# go throught all known modules to probe the content-types (do this only once)
for m in _modules:
p = __import__('parsers.'+m,globals(),locals(),[m])
for t in p.mimetypes:
_parsermodules[t] = p
def get_parsermodule(mimetype):
"""Look up the correct module for the specified mimetype."""
if _parsermodules == {}:
_init_modules()
# check if we have a supported content-type
if _parsermodules.has_key(mimetype):
return _parsermodules[mimetype]
return None
def get_mimetypes():
if _parsermodules == {}:
_init_modules()
return _parsermodules.keys()
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