# pylint: disable-msg=W0613,E0201
# W0702, W0706: allow argument magic (i.e. attributes_from_dict())
# Copyright (c) 2006 Jan Niklas Fingerle
#
# 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.
"""
TODO
"""
from copy import copy
import elementtree.ElementTree as ElementTree
class XMLElement(object):
def __init__(self, tag = None, content=None, prepend_to=None,
append_to=None, **attributes):
self.tag = tag
if content is None:
self.content = []
else:
try:
content.pop # check if it's a kind of list
self.content = content
except AttributeError:
self.content = [content]
self.attributes = {}
for (key, val) in attributes.items():
if key[-1:] == '_':
self.attributes[key[:-1]] = val
else:
self.attributes[key] = val
self.callback = []
self.translations = []
if prepend_to is not None:
prepend_to.prepend(self)
if append_to is not None:
append_to.append(self)
def clone(self, other):
self.tag = other.tag
self.content = other.content
self.attributes = other.attributes
self.callback = other.callback
self.translations = other.translations
def to_element_tree(self):
xhtml = ElementTree.Element(self.tag)
sub_xhtml = None
current_textlist = []
content = copy(self.content)
translations = []
for (key, val) in self.attributes.items():
xhtml.set(key, str(val))
# I want to modify the list, therefore I write this a bit
# more explicitly:
while content:
item = content.pop(0)
try: # should work, if it's a text list
current_textlist.extend(item)
except TypeError: # should be an XMLElement
if item.tag is None:
content = item.content + content
else:
current_text = ''.join(current_textlist)
current_textlist = []
if sub_xhtml is None:
xhtml.text = current_text
else:
sub_xhtml.tail = current_text
sub_xhtml, sub_translations = item.to_element_tree()
xhtml.append(sub_xhtml)
translations.extend(sub_translations)
current_text = ''.join(current_textlist)
if sub_xhtml is None:
xhtml.text = current_text
else:
sub_xhtml.tail = current_text
for translation in self.translations:
if translation[1] is None:
translations.append((xhtml,
translation[0],
translation[2]))
else:
translation[1](xhtml, translation[2])
return xhtml, translations
def is_empty(self):
return not bool(self.content)
def is_not_empty(self):
return bool(self.content)
def append(self, *appendee):
self.content.extend(appendee)
def prepend(self, *prependee):
self.content = list(prependee) + self.content
def set(self, key, val):
self.attributes[key] = val
def get(self, key):
return self.attributes[key]
def SubElement(parent, *args, **kwargs):
return XMLElement(append_to=parent, *args, **kwargs)
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