Source

Anolis / anolislib / processes / filter.py

# coding=UTF-8
# Copyright (c) 2009 James Graham
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

from lxml import cssselect

def filter(ElementTree, **kwargs):
    if not "filter" in kwargs or kwargs["filter"] == None:
        return
    selector = cssselect.CSSSelector(kwargs["filter"])
    for element in selector(ElementTree.getroot()):
        previous = element.getprevious()
        parent = element.getparent()
        if previous != None:
            previous.tail = previous.tail + element.tail
        else:
            parent.text = parent.text + element.tail
        parent.remove(element)