| #!/usr/bin/env python |
| # |
| # Copyright 2007 Google Inc. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| """Contains some functions that come in handy with XML parsing.""" |
| |
| |
| def GetTag(node): |
| """Strips namespace prefix.""" |
| return node.tag.rsplit('}', 1)[-1] |
| |
| |
| def GetChild(node, tag): |
| """Returns first child of node with tag.""" |
| for child in node.getchildren(): |
| if GetTag(child) == tag: |
| return child |
| |
| |
| def BooleanValue(node_text): |
| return node_text.lower() in ('1', 'true') |
| |
| |
| def GetAttribute(node, attr): |
| """Wrapper function to retrieve attributes from XML nodes.""" |
| return node.attrib.get(attr, '') |
| |
| |
| def GetChildNodeText(node, child_tag, default=''): |
| """Finds child xml node with desired tag and returns its text.""" |
| for child in node.getchildren(): |
| if GetTag(child) == child_tag: |
| |
| return child.text or default |
| return default |
| |
| |
| def GetNodes(node, match_tag): |
| """Gets all children of a node with the desired tag.""" |
| return (child for child in node.getchildren() if GetTag(child) == match_tag) |