1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <math.h>
#include "qabstractfloat_p.h"
#include "qatomictype_p.h"
#include "qbuiltintypes_p.h"
#include "qvalidationerror_p.h"
#include "qdecimal_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Decimal::Decimal(const xsDecimal num) : m_value(num)
{
}
Decimal::Ptr Decimal::fromValue(const xsDecimal num)
{
return Decimal::Ptr(new Decimal(num));
}
AtomicValue::Ptr Decimal::fromLexical(const QString &strNumeric)
{
/* QString::toDouble() handles the whitespace facet. */
const QString strNumericTrimmed(strNumeric.trimmed());
/* Block these out, as QString::toDouble() supports them. */
if(strNumericTrimmed.compare(QLatin1String("-INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("+INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("nan"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.contains(QLatin1Char('e'))
|| strNumericTrimmed.contains(QLatin1Char('E')))
{
return ValidationError::createError();
}
bool conversionOk = false;
const xsDecimal num = strNumericTrimmed.toDouble(&conversionOk);
if(conversionOk)
return AtomicValue::Ptr(new Decimal(num));
else
return ValidationError::createError();
}
bool Decimal::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
{
return !Double::isEqual(m_value, 0.0);
}
QString Decimal::stringValue() const
{
return toString(m_value);
}
QString Decimal::toString(const xsDecimal value)
{
/*
* If SV is in the value space of xs:integer, that is, if there are no
* significant digits after the decimal point, then the value is converted
* from an xs:decimal to an xs:integer and the resulting xs:integer is
* converted to an xs:string using the rule above.
*/
if(Double::isEqual(::floor(value), value))
{
/* The static_cast is identical to Integer::toInteger(). */
return QString::number(static_cast<xsInteger>(value));
}
else
{
int sign;
int decimalPoint;
char *result = 0;
static_cast<void>(qdtoa(value, 0, 0, &decimalPoint, &sign, 0, &result));
/* If the copy constructor is used instead of QString::operator=(),
* it doesn't compile. I have no idea why. */
const QString qret(QString::fromLatin1(result));
delete result;
QString valueAsString;
if(sign)
valueAsString += QLatin1Char('-');
if(0 < decimalPoint)
{
valueAsString += qret.left(decimalPoint);
valueAsString += QLatin1Char('.');
if (qret.size() <= decimalPoint)
valueAsString += QLatin1Char('0');
else
valueAsString += qret.mid(decimalPoint);
}
else
{
valueAsString += QLatin1Char('0');
valueAsString += QLatin1Char('.');
for(int d = decimalPoint; d < 0; d++)
valueAsString += QLatin1Char('0');
valueAsString += qret;
}
return valueAsString;
}
}
ItemType::Ptr Decimal::type() const
{
return BuiltinTypes::xsDecimal;
}
xsDouble Decimal::toDouble() const
{
return static_cast<xsDouble>(m_value);
}
xsInteger Decimal::toInteger() const
{
return static_cast<xsInteger>(m_value);
}
xsFloat Decimal::toFloat() const
{
return static_cast<xsFloat>(m_value);
}
xsDecimal Decimal::toDecimal() const
{
return m_value;
}
qulonglong Decimal::toUnsignedInteger() const
{
Q_ASSERT_X(false, Q_FUNC_INFO,
"It makes no sense to call this function, see Numeric::toUnsignedInteger().");
return 0;
}
Numeric::Ptr Decimal::round() const
{
return Numeric::Ptr(new Decimal(roundFloat(m_value)));
}
Numeric::Ptr Decimal::roundHalfToEven(const xsInteger /*scale*/) const
{
return Numeric::Ptr();
}
Numeric::Ptr Decimal::floor() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(::floor(m_value))));
}
Numeric::Ptr Decimal::ceiling() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(ceil(m_value))));
}
Numeric::Ptr Decimal::abs() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(fabs(m_value))));
}
bool Decimal::isNaN() const
{
return false;
}
bool Decimal::isInf() const
{
return false;
}
Item Decimal::toNegated() const
{
if(AbstractFloat<true>::isEqual(m_value, 0.0))
return fromValue(0).data();
else
return fromValue(-m_value).data();
}
bool Decimal::isSigned() const
{
Q_ASSERT_X(false, Q_FUNC_INFO,
"It makes no sense to call this function, see Numeric::isSigned().");
return false;
}
QT_END_NAMESPACE
|
