60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
# Copyright 2016 Google LLC. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -*- coding: utf-8 -*- #
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"""Contains some functions that come in handy with XML parsing."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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def GetTag(node):
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"""Strips namespace prefix."""
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return node.tag.rsplit('}', 1)[-1]
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def GetChild(node, tag):
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"""Returns first child of node with tag."""
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for child in list(node):
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if GetTag(child) == tag:
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return child
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def BooleanValue(node_text):
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return node_text.lower() in ('1', 'true')
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def GetAttribute(node, attr):
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"""Wrapper function to retrieve attributes from XML nodes."""
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return node.attrib.get(attr, '')
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def GetChildNodeText(node, child_tag, default=''):
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"""Finds child xml node with desired tag and returns its text."""
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for child in list(node):
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if GetTag(child) == child_tag:
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return GetNodeText(child) or default
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return default
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def GetNodeText(node):
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"""Returns the node text after stripping whitespace."""
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# Note for empty nodes (like <node></node>) node.text returns None.
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return node.text.strip() if node.text else ''
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def GetNodes(node, match_tag):
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"""Gets all children of a node with the desired tag."""
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return (child for child in list(node) if GetTag(child) == match_tag)
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