blob: 5f6707e1018b3ecb4c32a329636b2e048589c681 [file] [log] [blame]
/*
* Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
* Copyright (C) 2006, 2009 Apple Inc.
*
* 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 "core/xml/XPathUtil.h"
#include "core/dom/ContainerNode.h"
#include "core/dom/NodeTraversal.h"
#include "wtf/text/StringBuilder.h"
namespace blink {
namespace XPath {
bool isRootDomNode(Node* node)
{
return node && !node->parentNode();
}
String stringValue(Node* node)
{
switch (node->nodeType()) {
case Node::ATTRIBUTE_NODE:
case Node::PROCESSING_INSTRUCTION_NODE:
case Node::COMMENT_NODE:
case Node::TEXT_NODE:
case Node::CDATA_SECTION_NODE:
return node->nodeValue();
default:
if (isRootDomNode(node) || node->isElementNode()) {
StringBuilder result;
result.reserveCapacity(1024);
for (Node& n : NodeTraversal::descendantsOf(*node)) {
if (n.isTextNode()) {
const String& nodeValue = n.nodeValue();
result.append(nodeValue);
}
}
return result.toString();
}
}
return String();
}
bool isValidContextNode(Node* node)
{
if (!node)
return false;
switch (node->nodeType()) {
case Node::ATTRIBUTE_NODE:
case Node::CDATA_SECTION_NODE:
case Node::COMMENT_NODE:
case Node::DOCUMENT_NODE:
case Node::ELEMENT_NODE:
case Node::PROCESSING_INSTRUCTION_NODE:
return true;
case Node::DOCUMENT_FRAGMENT_NODE:
case Node::DOCUMENT_TYPE_NODE:
return false;
case Node::TEXT_NODE:
return !(node->parentNode() && node->parentNode()->isAttributeNode());
}
ASSERT_NOT_REACHED();
return false;
}
}
}