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
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <math.h>
#include <qnumeric.h>
#include "qabstractdatetime_p.h"
#include "qabstractduration_p.h"
#include "qabstractfloat_p.h"
#include "qdaytimeduration_p.h"
#include "qdecimal_p.h"
#include "qinteger_p.h"
#include "qpatternistlocale_p.h"
#include "qatomicmathematicians_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
/* The translation strings is place here once, in order to reduce work for translators,
* and provide consistency. */
static inline QString idivZeroInvalid()
{
return QtXmlPatterns::tr("Integer division (%1) by zero (%2) is undefined.")
.arg(formatKeyword("idiv"))
.arg(formatData("0"));
}
static inline QString divZeroInvalid()
{
return QtXmlPatterns::tr("Division (%1) by zero (%2) is undefined.")
.arg(formatKeyword("div"))
.arg(formatData("0"));
}
static inline QString modZeroInvalid()
{
return QtXmlPatterns::tr("Modulus division (%1) by zero (%2) is undefined.")
.arg(formatKeyword("mod"))
.arg(formatData("0"));
}
Item DecimalMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
switch(op)
{
case Div:
{
if(o2.as<Numeric>()->toInteger() == 0)
{
context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else
return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
}
case IDiv:
{
if(o2.as<Numeric>()->toInteger() == 0)
{
context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else
return Integer::fromValue(static_cast<xsInteger>(o1.as<Numeric>()->toDecimal() /
o2.as<Numeric>()->toDecimal()));
}
case Substract:
return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() - o2.as<Numeric>()->toDecimal()));
case Mod:
{
if(o2.as<Numeric>()->toInteger() == 0)
{
context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else
return toItem(Decimal::fromValue(::fmod(o1.as<Numeric>()->toDecimal(), o2.as<Numeric>()->toDecimal())));
}
case Multiply:
return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() * o2.as<Numeric>()->toDecimal()));
case Add:
return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() + o2.as<Numeric>()->toDecimal()));
}
Q_ASSERT(false);
return Item(); /* GCC unbarfer. */
}
Item IntegerMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
switch(op)
{
case Div:
if(o2.as<Numeric>()->toInteger() == 0)
{
context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else /* C++ automatically performs truncation of long integer(xsInteger). */
return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
case IDiv:
{
if(o2.as<Numeric>()->toInteger() == 0)
{
context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else /* C++ automatically performs truncation of long integer(xsInteger). */
return Integer::fromValue(o1.as<Numeric>()->toInteger() / o2.as<Numeric>()->toInteger());
}
case Substract:
return Integer::fromValue(o1.as<Numeric>()->toInteger() - o2.as<Numeric>()->toInteger());
case Mod:
{
const xsInteger divisor = o2.as<Numeric>()->toInteger();
if(divisor == 0)
{
context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
return Item(); /* Silences source code analyzer warning. */
}
else
return Integer::fromValue(o1.as<Numeric>()->toInteger() % divisor);
}
case Multiply:
return Integer::fromValue(o1.as<Numeric>()->toInteger() * o2.as<Numeric>()->toInteger());
case Add:
return Integer::fromValue(o1.as<Numeric>()->toInteger() + o2.as<Numeric>()->toInteger());
}
Q_ASSERT(false);
return Item(); /* GCC unbarfer. */
}
Item DurationNumericMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
Q_ASSERT(op == Div || op == Multiply);
const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
const xsDouble dbl = o2.as<Numeric>()->toDouble();
switch(op)
{
case Div:
{
if(qIsInf(dbl))
return duration->fromValue(0);
else if(qIsNaN(dbl))
{
context->error(QtXmlPatterns::tr(
"Dividing a value of type %1 by %2 (not-a-number) "
"is not allowed.")
.arg(formatType(context->namePool(),
duration->type()))
.arg(formatData("NaN")),
ReportContext::FOCA0005,
this);
return Item();
}
else if(Double::isEqual(dbl, 0))
{
context->error(QtXmlPatterns::tr(
"Dividing a value of type %1 by %2 or %3 (plus or "
"minus zero) is not allowed.")
.arg(formatType(context->namePool(),
duration->type()))
.arg(formatData("-0"))
.arg(formatData("0")),
ReportContext::FODT0002,
this);
return Item();
}
return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() / dbl));
}
case Multiply:
{
if(Double::isEqual(dbl, 0))
return duration->fromValue(0);
else if(qIsNaN(dbl))
{
context->error(QtXmlPatterns::tr(
"Dividing a value of type %1 by %2 (not-a-number) "
"is not allowed.")
.arg(formatType(context->namePool(),
duration->type()))
.arg(formatData("NaN")),
ReportContext::FOCA0005,
this);
return Item();
}
else if(qIsInf(dbl))
{
context->error(QtXmlPatterns::tr(
"Multiplication of a value of type %1 by %2 or %3 "
"(plus or minus infinity) is not allowed.")
.arg(formatType(context->namePool(),
duration->type()))
.arg(formatData("-INF"))
.arg(formatData("INF")),
ReportContext::FODT0002,
this);
return Item();
}
return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() * dbl));
}
default:
{
Q_ASSERT(false);
return Item(); /* Silence warning. */
}
}
}
Item DurationDurationMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &) const
{
const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
const AbstractDuration::Value op2 = o2.as<AbstractDuration>()->value();
switch(op)
{
case Div:
return toItem(Decimal::fromValue(static_cast<xsDecimal>(duration->value()) / op2));
case Substract:
return duration->fromValue(duration->value() - op2);
case Add:
return duration->fromValue(duration->value() + op2);
default:
{
Q_ASSERT(false);
return Item(); /* Silence warning. */
}
}
}
OperandSwitcherMathematician::
OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician) : m_mather(mathematician)
{
Q_ASSERT(mathematician);
}
Item OperandSwitcherMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
return m_mather->calculate(o2, op, o1, context);
}
Item DateTimeDurationMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
Q_ASSERT(op == Substract || op == Add);
const AbstractDateTime::Ptr adt(o1.as<AbstractDateTime>());
const AbstractDuration::Ptr dur(o2.as<AbstractDuration>());
QDateTime dt(adt->toDateTime());
//pDebug() << "DateTimeDurationMathematician::calculate():" << dt.toString();
//dt.setDateOnly(false);
const qint8 sign = (op == Add ? 1 : -1) * (dur->isPositive() ? 1 : -1);
// TODO milli seconds
dt = dt.addSecs(sign * (dur->seconds() + dur->minutes() * 60 + dur->hours() * 60 * 60));
dt = dt.addDays(sign * dur->days());
dt = dt.addMonths(sign * dur->months());
dt = dt.addYears(sign * dur->years());
QString msg;
if(AbstractDateTime::isRangeValid(dt.date(), msg))
return adt->fromValue(dt);
else
{
context->error(msg, ReportContext::FODT0001,
this);
return Item();
}
}
Item AbstractDateTimeMathematician::calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &) const
{
Q_ASSERT(op == Substract || op == Add);
QDateTime dt1(o1.as<AbstractDateTime>()->toDateTime());
QDateTime dt2(o2.as<AbstractDateTime>()->toDateTime());
const int diff = op == Add ? dt1.secsTo(dt2) : dt2.secsTo(dt1);
return toItem(DayTimeDuration::fromSeconds(diff));
}
QT_END_NAMESPACE
|
