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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 1.1, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSTRINGBUILDER_H
#define QSTRINGBUILDER_H
#include <QtCore/qstring.h>
#if defined(Q_CC_GNU) && !defined(Q_CC_INTEL)
# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 0)
# include <QtCore/qmap.h>
# endif
#endif
#include <string.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
// ### Qt 5: merge with QLatin1String
class QLatin1Literal
{
public:
int size() const { return m_size; }
const char *data() const { return m_data; }
template <int N>
QLatin1Literal(const char (&str)[N])
: m_size(N - 1), m_data(str) {}
private:
const int m_size;
const char *m_data;
};
struct Q_CORE_EXPORT QAbstractConcatenable
{
protected:
static void convertFromAscii(const char *a, int len, QChar *&out);
static inline void convertFromAscii(char a, QChar *&out)
{
#ifndef QT_NO_TEXTCODEC
if (QString::codecForCStrings)
*out++ = QChar::fromAscii(a);
else
#endif
*out++ = QLatin1Char(a);
}
};
template <typename T> struct QConcatenable {};
template <typename A, typename B>
class QStringBuilder
{
public:
QStringBuilder(const A &a_, const B &b_) : a(a_), b(b_) {}
operator QString() const
{
QString s(QConcatenable< QStringBuilder<A, B> >::size(*this),
Qt::Uninitialized);
QChar *d = s.data();
QConcatenable< QStringBuilder<A, B> >::appendTo(*this, d);
// this resize is necessary since we allocate a bit too much
// when dealing with variable sized 8-bit encodings
s.resize(d - s.data());
return s;
}
QByteArray toLatin1() const { return QString(*this).toLatin1(); }
const A &a;
const B &b;
};
template <> struct QConcatenable<char> : private QAbstractConcatenable
{
typedef char type;
static int size(const char) { return 1; }
static inline void appendTo(const char c, QChar *&out)
{
QAbstractConcatenable::convertFromAscii(c, out);
}
};
template <> struct QConcatenable<QLatin1Char>
{
typedef QLatin1Char type;
static int size(const QLatin1Char) { return 1; }
static inline void appendTo(const QLatin1Char c, QChar *&out)
{
*out++ = c;
}
};
template <> struct QConcatenable<QChar>
{
typedef QChar type;
static int size(const QChar) { return 1; }
static inline void appendTo(const QChar c, QChar *&out)
{
*out++ = c;
}
};
template <> struct QConcatenable<QCharRef>
{
typedef QCharRef type;
static int size(const QCharRef &) { return 1; }
static inline void appendTo(const QCharRef &c, QChar *&out)
{
*out++ = QChar(c);
}
};
template <> struct QConcatenable<QLatin1String>
{
typedef QLatin1String type;
static int size(const QLatin1String &a) { return qstrlen(a.latin1()); }
static inline void appendTo(const QLatin1String &a, QChar *&out)
{
for (const char *s = a.latin1(); *s; )
*out++ = QLatin1Char(*s++);
}
};
template <> struct QConcatenable<QLatin1Literal>
{
typedef QLatin1Literal type;
static int size(const QLatin1Literal &a) { return a.size(); }
static inline void appendTo(const QLatin1Literal &a, QChar *&out)
{
for (const char *s = a.data(); *s; )
*out++ = QLatin1Char(*s++);
}
};
template <> struct QConcatenable<QString>
{
typedef QString type;
static int size(const QString &a) { return a.size(); }
static inline void appendTo(const QString &a, QChar *&out)
{
const int n = a.size();
memcpy(out, reinterpret_cast<const char*>(a.constData()), sizeof(QChar) * n);
out += n;
}
};
template <> struct QConcatenable<QStringRef>
{
typedef QStringRef type;
static int size(const QStringRef &a) { return a.size(); }
static inline void appendTo(QStringRef a, QChar *&out)
{
const int n = a.size();
memcpy(out, reinterpret_cast<const char*>(a.constData()), sizeof(QChar) * n);
out += n;
}
};
#ifndef QT_NO_CAST_FROM_ASCII
template <int N> struct QConcatenable<char[N]> : private QAbstractConcatenable
{
typedef char type[N];
static int size(const char[N])
{
return N - 1;
}
static inline void appendTo(const char a[N], QChar *&out)
{
QAbstractConcatenable::convertFromAscii(a, N, out);
}
};
template <int N> struct QConcatenable<const char[N]> : private QAbstractConcatenable
{
typedef const char type[N];
static int size(const char[N]) { return N - 1; }
static inline void appendTo(const char a[N], QChar *&out)
{
QAbstractConcatenable::convertFromAscii(a, N, out);
}
};
template <> struct QConcatenable<const char *> : private QAbstractConcatenable
{
typedef char const *type;
static int size(const char *a) { return qstrlen(a); }
static inline void appendTo(const char *a, QChar *&out)
{
QAbstractConcatenable::convertFromAscii(a, -1, out);
}
};
template <> struct QConcatenable<QByteArray> : private QAbstractConcatenable
{
typedef QByteArray type;
static int size(const QByteArray &ba) { return qstrnlen(ba.constData(), ba.size()); }
static inline void appendTo(const QByteArray &ba, QChar *&out)
{
QAbstractConcatenable::convertFromAscii(ba.constData(), -1, out);
}
};
#endif
template <typename A, typename B>
struct QConcatenable< QStringBuilder<A, B> >
{
typedef QStringBuilder<A, B> type;
static int size(const type &p)
{
return QConcatenable<A>::size(p.a) + QConcatenable<B>::size(p.b);
}
static inline void appendTo(const QStringBuilder<A, B> &p, QChar *&out)
{
QConcatenable<A>::appendTo(p.a, out);
QConcatenable<B>::appendTo(p.b, out);
}
};
template <typename A, typename B>
QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>
operator%(const A &a, const B &b)
{
return QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>(a, b);
}
#ifdef QT_USE_FAST_OPERATOR_PLUS
template <typename A, typename B>
QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>
operator+(const A &a, const B &b)
{
return QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>(a, b);
}
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif // QSTRINGBUILDER_H
|
