76 lines
2.8 KiB
Python
76 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright 2019-2020 Fabien Bourgeois <fabien@yaltik.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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""" XML helpers and macros """
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from os import path
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import xml.etree.ElementTree as ET
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from xml.dom import minidom
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from collections import namedtuple
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from functools import partial
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XMLDictElement = namedtuple('XMLDictElement', ['tag', 'attrs', 'children'])
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def xmlroot(tree):
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""" Special process for root XML Node """
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rootel = ET.Element(tree['tag'], tree['attrs'])
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if 'children' in tree:
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xmlchild(rootel, tree['children'])
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return rootel
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def xmlchild(parent, children):
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""" Handling of children (ie non root) XML Nodes with/o text and
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subchildren (recursive) """
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if isinstance(children, str):
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parent.text = children
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elif isinstance(children, XMLDictElement):
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attrs = {str(k): str(v) for [k, v] in children.attrs.items()}
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new_parent = ET.SubElement(parent, children.tag, attrs)
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subchildren = children.children
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if subchildren:
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xmlchild(new_parent, subchildren)
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elif isinstance(children, list):
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list(map(partial(xmlchild, parent), children))
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else:
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raise TypeError('Invalid arguments for xmlchild')
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def xmln(tag='', attrs={}, children=[]):
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""" XMLDictElement building from dict object, with defaults """
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if isinstance(attrs, list):
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children = attrs
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attrs = {}
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xmldictel = partial(XMLDictElement, tag, attrs)
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if isinstance(children, str):
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return xmldictel([children])
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if isinstance(children, list):
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return xmldictel(children)
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raise TypeError('Invalid arguments for xmln')
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def xml_write(filepath, tree, pretty=True):
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""" Write XML file according to filename and given tree """
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if filepath.endswith('.py'): # if .pyc, no need to generate XML
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output_xml = ET.tostring(tree)
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if pretty:
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output_xml = minidom.parseString(output_xml).toprettyxml(indent=' ')
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output_path = path.abspath(filepath).split(u'/')
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output_path[-1] = output_path[-1].replace(u'.py', u'_views.xml')
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output_path = u'/'.join(output_path)
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with open(output_path, 'w') as output_file:
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output_file.write(output_xml)
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