3
U*W&
@ s d Z ddlmZ ddlmZ y ddlZW n ek
rD edY nX ejZej Z ej
Z
ddd d
gZ G d d d ej Z
G d
d de
ejZdd 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.
)absolute_import )etreeNzRcssselect does not seem to be installed. See http://packages.python.org/cssselect/SelectorSyntaxErrorExpressionError
SelectorError CSSSelectorc @ s e Zd ZdZdd ZdS )LxmlTranslatorzR
A custom CSS selector to XPath translator with lxml-specific extensions.
c C sF |j dgdgfkr"td|j |jd j}|jd| j|j S )NSTRINGZIDENTz9Expected a single string or ident for :contains(), got %rr z7contains(__lxml_internal_css:lower-case(string(.)), %s))Zargument_typesr Z argumentsvalueZ
add_conditionZ
xpath_literallower)selfZxpathZfunctionr r !/usr/lib64/python3.6/cssselect.pyxpath_contains_function! s
z&LxmlTranslator.xpath_contains_functionN)__name__
__module__ __qualname____doc__r r r r r r s r c @ s e Zd ZdZdS )LxmlHTMLTranslatorz)
lxml extensions + HTML support.
N)r r r r r r r r r . s r c C s |j S )N)r )contextsr r r _make_lower_case4 s r z http://codespeak.net/lxml/css/Z__lxml_internal_cssz
lower-casec @ s" e Zd ZdZdddZdd ZdS ) r a A CSS selector.
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')]
Nxmlc C sX |dkrt }n"|dkr t }n|dkr2tdd}|j|}tjj| ||d || _d S )Nr ZhtmlxhtmlT)r )
namespaces)r r Z css_to_xpathr XPath__init__css)r
r r Z
translatorpathr r r r W s
zCSSSelector.__init__c C s( d| j jttt| dd | jf S )Nz<%s %s for %r> ) __class__r hexabsidr )r
r r r __repr__b s zCSSSelector.__repr__)Nr )r r r r r r% r r r r r < s
)r Z
__future__r r Z cssselectZexternal_cssselect ImportErrorr r r __all__ZGenericTranslatorr ZHTMLTranslatorr r ZFunctionNamespacensprefixr r r r r r s&