/usr/share/pyshared/pyquery/cssselectpatch.py is in python-pyquery 1.2.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (C) 2008 - Olivier Lauzanne <olauzanne@gmail.com>
#
# Distributed under the BSD license, see LICENSE.txt
from cssselect import xpath as cssselect_xpath
from cssselect.xpath import ExpressionError
class JQueryTranslator(cssselect_xpath.HTMLTranslator):
"""This class is used to implement the css pseudo classes
(:first, :last, ...) that are not defined in the css standard,
but are defined in the jquery API.
"""
def xpath_first_pseudo(self, xpath):
"""Matches the first selected element.
"""
xpath.add_post_condition('position() = 1')
return xpath
def xpath_last_pseudo(self, xpath):
"""Matches the last selected element.
"""
xpath.add_post_condition('position() = last()')
return xpath
def xpath_even_pseudo(self, xpath):
"""Matches even elements, zero-indexed.
"""
# the first element is 1 in xpath and 0 in python and js
xpath.add_post_condition('position() mod 2 = 1')
return xpath
def xpath_odd_pseudo(self, xpath):
"""Matches odd elements, zero-indexed.
"""
xpath.add_post_condition('position() mod 2 = 0')
return xpath
def xpath_checked_pseudo(self, xpath):
"""Matches odd elements, zero-indexed.
"""
xpath.add_condition("@checked and name(.) = 'input'")
return xpath
def xpath_selected_pseudo(self, xpath):
"""Matches all elements that are selected.
"""
xpath.add_condition("@selected and name(.) = 'option'")
return xpath
def xpath_disabled_pseudo(self, xpath):
"""Matches all elements that are disabled.
"""
xpath.add_condition("@disabled")
return xpath
def xpath_enabled_pseudo(self, xpath):
"""Matches all elements that are enabled.
"""
xpath.add_condition("not(@disabled) and name(.) = 'input'")
return xpath
def xpath_file_pseudo(self, xpath):
"""Matches all input elements of type file.
"""
xpath.add_condition("@type = 'file' and name(.) = 'input'")
return xpath
def xpath_input_pseudo(self, xpath):
"""Matches all input elements.
"""
xpath.add_condition("(name(.) = 'input' or name(.) = 'select') "
+ "or (name(.) = 'textarea' or name(.) = 'button')")
return xpath
def xpath_button_pseudo(self, xpath):
"""Matches all button input elements and the button element.
"""
xpath.add_condition("(@type = 'button' and name(.) = 'input') "
+ "or name(.) = 'button'")
return xpath
def xpath_radio_pseudo(self, xpath):
"""Matches all radio input elements.
"""
xpath.add_condition("@type = 'radio' and name(.) = 'input'")
return xpath
def xpath_text_pseudo(self, xpath):
"""Matches all text input elements.
"""
xpath.add_condition("@type = 'text' and name(.) = 'input'")
return xpath
def xpath_checkbox_pseudo(self, xpath):
"""Matches all checkbox input elements.
"""
xpath.add_condition("@type = 'checkbox' and name(.) = 'input'")
return xpath
def xpath_password_pseudo(self, xpath):
"""Matches all password input elements.
"""
xpath.add_condition("@type = 'password' and name(.) = 'input'")
return xpath
def xpath_submit_pseudo(self, xpath):
"""Matches all submit input elements.
"""
xpath.add_condition("@type = 'submit' and name(.) = 'input'")
return xpath
def xpath_image_pseudo(self, xpath):
"""Matches all image input elements.
"""
xpath.add_condition("@type = 'image' and name(.) = 'input'")
return xpath
def xpath_reset_pseudo(self, xpath):
"""Matches all reset input elements.
"""
xpath.add_condition("@type = 'reset' and name(.) = 'input'")
return xpath
def xpath_header_pseudo(self, xpath):
"""Matches all header elelements (h1, ..., h6)
"""
# this seems kind of brute-force, is there a better way?
xpath.add_condition(
"(name(.) = 'h1' or name(.) = 'h2' or name (.) = 'h3') "
+ "or (name(.) = 'h4' or name (.) = 'h5' or name(.) = 'h6')")
return xpath
def xpath_parent_pseudo(self, xpath):
"""Match all elements that contain other elements
"""
xpath.add_condition("count(child::*) > 0")
return xpath
def xpath_empty_pseudo(self, xpath):
"""Match all elements that do not contain other elements
"""
xpath.add_condition("count(child::*) = 0")
return xpath
def xpath_eq_function(self, xpath, function):
"""Matches a single element by its index.
"""
if function.argument_types() != ['NUMBER']:
raise ExpressionError(
"Expected a single integer for :eq(), got %r"
% function.arguments
)
value = int(function.arguments[0].value)
xpath.add_post_condition(
'position() = %s' % (value + 1))
return xpath
def xpath_gt_function(self, xpath, function):
"""Matches all elements with an index over the given one.
"""
if function.argument_types() != ['NUMBER']:
raise ExpressionError(
"Expected a single integer for :gt(), got %r"
% function.arguments
)
value = int(function.arguments[0].value)
xpath.add_post_condition(
'position() > %s' % (value + 1))
return xpath
def xpath_lt_function(self, xpath, function):
"""Matches all elements with an index below the given one.
"""
if function.argument_types() != ['NUMBER']:
raise ExpressionError(
"Expected a single integer for :gt(), got %r"
% function.arguments
)
value = int(function.arguments[0].value)
xpath.add_post_condition(
'position() < %s' % (value + 1))
return xpath
def xpath_contains_function(self, xpath, function):
"""Matches all elements that contain the given text
"""
if function.argument_types() != ['STRING']:
raise ExpressionError(
"Expected a single string for :contains(), got %r"
% function.arguments
)
value = str(function.arguments[0].value)
xpath.add_post_condition(
"contains(text(), '%s')" % value)
return xpath
XPathExprOrig = cssselect_xpath.XPathExpr
class XPathExpr(XPathExprOrig):
def __init__(self, path='', element='*', condition='', star_prefix=False):
self.path = path
self.element = element
self.condition = condition
self.post_condition = None
def add_post_condition(self, post_condition):
if self.post_condition:
self.post_condition = '%s and (%s)' % (self.post_condition,
post_condition)
else:
self.post_condition = post_condition
def __str__(self):
path = XPathExprOrig.__str__(self)
if self.post_condition:
path = '%s[%s]' % (path, self.post_condition)
return path
def join(self, combiner, other):
res = XPathExprOrig.join(self, combiner, other)
self.post_condition = other.post_condition
return res
cssselect_xpath.XPathExpr = XPathExpr
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