1/*
2 * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
3 * Copyright (C) 2006, 2009 Apple Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "XPathUtil.h"
29
30#include "ContainerNode.h"
31#include "TextNodeTraversal.h"
32
33namespace WebCore {
34namespace XPath {
35
36bool isRootDomNode(Node* node)
37{
38 return node && !node->parentNode();
39}
40
41String stringValue(Node* node)
42{
43 switch (node->nodeType()) {
44 case Node::ATTRIBUTE_NODE:
45 case Node::PROCESSING_INSTRUCTION_NODE:
46 case Node::COMMENT_NODE:
47 case Node::TEXT_NODE:
48 case Node::CDATA_SECTION_NODE:
49 return node->nodeValue();
50 default:
51 if (isRootDomNode(node) || node->isElementNode())
52 return TextNodeTraversal::contentsAsString(*node);
53 }
54 return String();
55}
56
57bool isValidContextNode(Node* node)
58{
59 if (!node)
60 return false;
61 switch (node->nodeType()) {
62 case Node::ATTRIBUTE_NODE:
63 case Node::CDATA_SECTION_NODE:
64 case Node::COMMENT_NODE:
65 case Node::DOCUMENT_NODE:
66 case Node::ELEMENT_NODE:
67 case Node::PROCESSING_INSTRUCTION_NODE:
68 case Node::TEXT_NODE:
69 return true;
70 case Node::DOCUMENT_FRAGMENT_NODE:
71 case Node::DOCUMENT_TYPE_NODE:
72 return false;
73 }
74 ASSERT_NOT_REACHED();
75 return false;
76}
77
78}
79}
80