yaltik_odoo_custom/yaltik_dsl/xml_base.coco

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# -*- coding: utf-8 -*-
#
# Copyright 2019-2020 Fabien Bourgeois <fabien@yaltik.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
""" XML helpers and macros """
from os import path
import xml.etree.ElementTree as ET
from xml.dom import minidom
from typing import Dict, List, Union, Any
# TODO: fix MyPy / typing
# REF and test xml_write
data XMLDictElement(tag: XMLText, attrs: XMLAttrs, children: List[Any])
XMLText = Union[str, unicode]
XMLAttrs = Dict[str, str]
XMLChild = Union[XMLDictElement, XMLText, List]
def xmlroot(tree: Dict[str, Any]) -> ET.Element:
""" Special process for root XML Node """
rootel = (tree['tag'], tree['attrs']) |*> ET.Element
if 'children' in tree:
(rootel, tree['children']) |*> xmlchild
return rootel
def xmlchild(parent: ET.Element, children: XMLDictElement) -> None:
""" Handling of children (ie non root) XML Nodes with/o text and
subchildren (recursive) """
case children:
match _ is XMLText:
parent.text = children
match _ is XMLDictElement:
attrs = {unicode(k): unicode(v) for [k, v] in children.attrs.items()}
new_parent = (parent, children.tag, attrs) |*> ET.SubElement
subchildren = children.children
if subchildren:
(new_parent, subchildren) |*> xmlchild
match _ is list:
((xmlchild$ <| parent), children) |*> map |> consume
else:
raise TypeError('Invalid arguments for xmlchild')
def xmln(tag: XMLText = '',
attrs: XMLAttrs = {},
children: Union[str, List] = []) -> XMLDictElement:
""" XMLNode with default children, not attributes """
case children:
match c is str:
return XMLDictElement(tag=tag, attrs=attrs, children=[c])
# return {'tag': tag, 'attrs': attrs, 'children': [c]}
match c is list:
return XMLDictElement(tag=tag, attrs=attrs, children=c)
# return {'tag': tag, 'attrs': attrs, 'children': c}
else:
raise TypeError('Invalid arguments for xmln')
def xml_write(filepath, tree):
""" Write XML file according to filename and given tree """
if filepath.endswith('.py'): # if .pyc, no need to generate XML
output_xml = minidom.parseString(ET.tostring(tree)).toprettyxml(indent=' ')
output_path = path.dirname(path.abspath(filepath))
fpath = '%s/%s' % (output_path, path.basename(filepath).replace('.py', '_views.xml'))
with open(fpath, 'w') as output_file:
output_file.write(output_xml)