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Add support for xpath in LxmlHtmlParser.select

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The returned results are similar to those of the cssselect method
so there wasn't much to do except calling it.
This commit is contained in:
Laurent Bachelier 2011-04-12 01:00:28 +02:00
commit 92fc86a033
1 changed files with 19 additions and 17 deletions
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40
weboob/tools/parsers/lxmlparser.py
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@ -60,23 +60,25 @@ class LxmlHtmlParser(IParser):
"""
if method == 'cssselect':
results = element.cssselect(selector)
if nb is None:
return results
elif isinstance(nb, basestring) and nb == 'many':
if results is None or len(results) == 0:
raise BrokenPageError('Element not found with selector "%s"' % selector)
elif len(results) == 1:
raise BrokenPageError('Only one element found with selector "%s"' % selector)
else:
return results
elif isinstance(nb, int) and nb > 0:
if results is None:
raise BrokenPageError('Element not found with selector "%s"' % selector)
elif len(results) < nb:
raise BrokenPageError('Not enough elements found (%d expected) with selector "%s"' % (nb, selector))
else:
return results[0] if nb == 1 else results
else:
raise Exception('Unhandled value for kwarg "nb": %s' % nb)
elif method == 'xpath':
results = element.xpath(selector)
else:
raise NotImplementedError('Only cssselect method is implemented for the moment')
raise NotImplementedError('Only the cssselect and xpath methods are supported')
if nb is None:
return results
elif isinstance(nb, basestring) and nb == 'many':
if results is None or len(results) == 0:
raise BrokenPageError('Element not found with selector "%s"' % selector)
elif len(results) == 1:
raise BrokenPageError('Only one element found with selector "%s"' % selector)
else:
return results
elif isinstance(nb, int) and nb > 0:
if results is None:
raise BrokenPageError('Element not found with selector "%s"' % selector)
elif len(results) < nb:
raise BrokenPageError('Not enough elements found (%d expected) with selector "%s"' % (nb, selector))
else:
return results[0] if nb == 1 else results
else:
raise Exception('Unhandled value for kwarg "nb": %s' % nb)