author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:20:16 +0200 | |
changeset 36 | 0ed94ceaa377 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright 2005 Frerich Raabe <raabe@kde.org> |
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* Copyright (C) 2006 Apple Computer, Inc. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#include "config.h" |
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#include "XPathValue.h" |
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|
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#if ENABLE(XPATH) |
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#include "Node.h" |
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#include "XPathUtil.h" |
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#include <wtf/MathExtras.h> |
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#include <limits> |
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using std::numeric_limits; |
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namespace WebCore { |
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namespace XPath { |
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const Value::AdoptTag Value::adopt = {}; |
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|
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const NodeSet& Value::toNodeSet() const |
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{ |
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if (!m_data) { |
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static NodeSet emptyNodeSet; |
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return emptyNodeSet; |
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} |
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|
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return m_data->m_nodeSet; |
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} |
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|
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NodeSet& Value::modifiableNodeSet() |
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{ |
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if (!m_data) |
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m_data = new ValueData; |
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|
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m_type = NodeSetValue; |
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return m_data->m_nodeSet; |
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} |
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|
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bool Value::toBoolean() const |
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{ |
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switch (m_type) { |
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case NodeSetValue: |
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return !m_data->m_nodeSet.isEmpty(); |
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case BooleanValue: |
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return m_bool; |
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case NumberValue: |
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return m_number != 0 && !isnan(m_number); |
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case StringValue: |
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return !m_data->m_string.isEmpty(); |
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} |
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ASSERT_NOT_REACHED(); |
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return false; |
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} |
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|
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double Value::toNumber() const |
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{ |
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switch (m_type) { |
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case NodeSetValue: |
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return Value(toString()).toNumber(); |
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case NumberValue: |
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return m_number; |
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case StringValue: { |
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bool canConvert; |
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double value = m_data->m_string.simplifyWhiteSpace().toDouble(&canConvert); |
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if (canConvert) |
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return value; |
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return numeric_limits<double>::quiet_NaN(); |
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} |
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case BooleanValue: |
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return m_bool; |
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} |
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ASSERT_NOT_REACHED(); |
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return 0.0; |
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} |
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100 |
|
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String Value::toString() const |
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102 |
{ |
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103 |
switch (m_type) { |
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104 |
case NodeSetValue: |
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if (m_data->m_nodeSet.isEmpty()) |
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return ""; |
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return stringValue(m_data->m_nodeSet.firstNode()); |
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108 |
case StringValue: |
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return m_data->m_string; |
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case NumberValue: |
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if (isnan(m_number)) |
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112 |
return "NaN"; |
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if (m_number == 0) |
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return "0"; |
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if (isinf(m_number)) |
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return signbit(m_number) ? "-Infinity" : "Infinity"; |
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return String::number(m_number); |
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case BooleanValue: |
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return m_bool ? "true" : "false"; |
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120 |
} |
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ASSERT_NOT_REACHED(); |
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return String(); |
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} |
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124 |
|
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} |
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126 |
} |
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127 |
|
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#endif // ENABLE(XPATH) |