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dd ZejdZde_eed< G dd d ejZdS )zCSS Selectors based on XPath.
This module supports selecting XML/HTML tags based on CSS selectors.
See the `CSSSelector` class for details.
This is a thin wrapper around cssselect 0.7 or later.
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A custom CSS selector to XPath translator with lxml-specific extensions.
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lxml extensions + HTML support.
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Usage::
>>> from lxml import etree, cssselect
>>> select = cssselect.CSSSelector("a tag > child")
>>> root = etree.XML("TEXT")
>>> [ el.tag for el in select(root) ]
['child']
To use CSS namespaces, you need to pass a prefix-to-namespace
mapping as ``namespaces`` keyword argument::
>>> rdfns = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
>>> select_ns = cssselect.CSSSelector('root > rdf|Description',
... namespaces={'rdf': rdfns})
>>> rdf = etree.XML((
... ''
... 'blah'
... '') % rdfns)
>>> [(el.tag, el.text) for el in select_ns(rdf)]
[('{http://www.w3.org/1999/02/22-rdf-syntax-ns#}Description', 'blah')]
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