mirror of
https://github.com/samuelclay/NewsBlur.git
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71 lines
1.6 KiB
Python
71 lines
1.6 KiB
Python
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import lxml.etree
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class OutlineElement(object):
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"""A single outline object."""
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def __init__(self, root):
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"""Initialize from the root <outline> node."""
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self._root = root
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def __getattr__(self, attr):
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if attr in self._root.attrib:
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return self._root.attrib[attr]
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raise AttributeError()
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@property
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def _outlines(self):
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"""Return the available sub-outline objects as a seqeunce."""
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return [OutlineElement(n) for n in self._root.xpath('./outline')]
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def __len__(self):
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return len(self._outlines)
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def __getitem__(self, index):
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return self._outlines[index]
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class Opml(object):
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"""Python representation of an OPML file."""
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def __init__(self, xml_tree):
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"""Initialize the object using the parsed XML tree."""
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self._tree = xml_tree
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def __getattr__(self, attr):
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"""Fall back attribute handler -- attempt to find the attribute in
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the OPML <head>."""
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result = self._tree.xpath('/opml/head/%s/text()' % attr)
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if len(result) == 1:
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return result[0]
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raise AttributeError()
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@property
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def _outlines(self):
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"""Return the available sub-outline objects as a seqeunce."""
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return [OutlineElement(n) for n in self._tree.xpath(
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'/opml/body/outline')]
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def __len__(self):
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return len(self._outlines)
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def __getitem__(self, index):
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return self._outlines[index]
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def from_string(opml_text):
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return Opml(lxml.etree.fromstring(opml_text))
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def parse(opml_url):
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return Opml(lxml.etree.parse(opml_url))
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