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XPathUtil.cpp
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76 lines (69 loc) · 2.48 KB
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/*
* Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
* Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2019 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "XPathUtil.h"
#include "ContainerNode.h"
#include "TextNodeTraversal.h"
namespace WebCore::XPath {
bool isRootDomNode(Node* node)
{
return node && !node->parentNode();
}
String stringValue(Node& node)
{
switch (node.nodeType()) {
case NodeType::Attribute:
case NodeType::ProcessingInstruction:
case NodeType::Comment:
case NodeType::Text:
case NodeType::CDATASection:
return node.nodeValue();
default:
if (isRootDomNode(&node) || node.isElementNode())
return TextNodeTraversal::contentsAsString(node);
}
return String();
}
bool isValidContextNode(Node& node)
{
switch (node.nodeType()) {
case NodeType::Attribute:
case NodeType::CDATASection:
case NodeType::Comment:
case NodeType::Document:
case NodeType::Element:
case NodeType::ProcessingInstruction:
case NodeType::Text:
return true;
case NodeType::DocumentFragment:
case NodeType::DocumentType:
return false;
}
ASSERT_NOT_REACHED();
return false;
}
} // namespace WebCore::XPath