mirror of
https://github.com/Gator96100/ProxSpace.git
synced 2025-07-16 02:03:02 -07:00
431 lines
14 KiB
C++
431 lines
14 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
** Contact: http://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the QtCore module of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL21$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see http://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at http://www.qt.io/contact-us.
|
|
**
|
|
** 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 or version 3 as published by the Free
|
|
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
|
|
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
|
|
** following information to ensure the GNU Lesser General Public License
|
|
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
|
|
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
**
|
|
** As a special exception, The Qt Company gives you certain additional
|
|
** rights. These rights are described in The Qt Company LGPL Exception
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#ifndef QSTRINGBUILDER_H
|
|
#define QSTRINGBUILDER_H
|
|
|
|
#if 0
|
|
// syncqt can not handle the templates in this file, and it doesn't need to
|
|
// process them anyway because they are internal.
|
|
#pragma qt_class(QStringBuilder)
|
|
#pragma qt_sync_stop_processing
|
|
#endif
|
|
|
|
#include <QtCore/qstring.h>
|
|
#include <QtCore/qbytearray.h>
|
|
|
|
#include <string.h>
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
|
|
|
|
struct Q_CORE_EXPORT QAbstractConcatenable
|
|
{
|
|
protected:
|
|
static void convertFromAscii(const char *a, int len, QChar *&out);
|
|
static inline void convertFromAscii(char a, QChar *&out)
|
|
{
|
|
*out++ = QLatin1Char(a);
|
|
}
|
|
static void appendLatin1To(const char *a, int len, QChar *out);
|
|
};
|
|
|
|
template <typename T> struct QConcatenable {};
|
|
|
|
namespace QtStringBuilder {
|
|
template <typename A, typename B> struct ConvertToTypeHelper
|
|
{ typedef A ConvertTo; };
|
|
template <typename T> struct ConvertToTypeHelper<T, QString>
|
|
{ typedef QString ConvertTo; };
|
|
}
|
|
|
|
template<typename Builder, typename T>
|
|
struct QStringBuilderCommon
|
|
{
|
|
T toUpper() const { return resolved().toUpper(); }
|
|
T toLower() const { return resolved().toLower(); }
|
|
|
|
protected:
|
|
const T resolved() const { return *static_cast<const Builder*>(this); }
|
|
};
|
|
|
|
template<typename Builder, typename T>
|
|
struct QStringBuilderBase : public QStringBuilderCommon<Builder, T>
|
|
{
|
|
};
|
|
|
|
template<typename Builder>
|
|
struct QStringBuilderBase<Builder, QString> : public QStringBuilderCommon<Builder, QString>
|
|
{
|
|
QByteArray toLatin1() const { return this->resolved().toLatin1(); }
|
|
QByteArray toUtf8() const { return this->resolved().toUtf8(); }
|
|
QByteArray toLocal8Bit() const { return this->resolved().toLocal8Bit(); }
|
|
};
|
|
|
|
template <typename A, typename B>
|
|
class QStringBuilder : public QStringBuilderBase<QStringBuilder<A, B>, typename QtStringBuilder::ConvertToTypeHelper<typename QConcatenable<A>::ConvertTo, typename QConcatenable<B>::ConvertTo>::ConvertTo>
|
|
{
|
|
public:
|
|
QStringBuilder(const A &a_, const B &b_) : a(a_), b(b_) {}
|
|
private:
|
|
friend class QByteArray;
|
|
friend class QString;
|
|
template <typename T> T convertTo() const
|
|
{
|
|
const uint len = QConcatenable< QStringBuilder<A, B> >::size(*this);
|
|
T s(len, Qt::Uninitialized);
|
|
|
|
// we abuse const_cast / constData here because we know we've just
|
|
// allocated the data and we're the only reference count
|
|
typename T::iterator d = const_cast<typename T::iterator>(s.constData());
|
|
typename T::const_iterator const start = d;
|
|
QConcatenable< QStringBuilder<A, B> >::appendTo(*this, d);
|
|
|
|
if (!QConcatenable< QStringBuilder<A, B> >::ExactSize && int(len) != d - start) {
|
|
// this resize is necessary since we allocate a bit too much
|
|
// when dealing with variable sized 8-bit encodings
|
|
s.resize(d - start);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
typedef QConcatenable<QStringBuilder<A, B> > Concatenable;
|
|
typedef typename Concatenable::ConvertTo ConvertTo;
|
|
public:
|
|
operator ConvertTo() const { return convertTo<ConvertTo>(); }
|
|
|
|
int size() const { return Concatenable::size(*this); }
|
|
|
|
const A &a;
|
|
const B &b;
|
|
};
|
|
|
|
template <>
|
|
class QStringBuilder <QString, QString> : public QStringBuilderBase<QStringBuilder<QString, QString>, QString>
|
|
{
|
|
public:
|
|
QStringBuilder(const QString &a_, const QString &b_) : a(a_), b(b_) {}
|
|
QStringBuilder(const QStringBuilder &other) : a(other.a), b(other.b) {}
|
|
|
|
operator QString() const
|
|
{ QString r(a); r += b; return r; }
|
|
|
|
const QString &a;
|
|
const QString &b;
|
|
|
|
private:
|
|
QStringBuilder &operator=(const QStringBuilder &) Q_DECL_EQ_DELETE;
|
|
};
|
|
|
|
template <>
|
|
class QStringBuilder <QByteArray, QByteArray> : public QStringBuilderBase<QStringBuilder<QByteArray, QByteArray>, QByteArray>
|
|
{
|
|
public:
|
|
QStringBuilder(const QByteArray &a_, const QByteArray &b_) : a(a_), b(b_) {}
|
|
QStringBuilder(const QStringBuilder &other) : a(other.a), b(other.b) {}
|
|
|
|
operator QByteArray() const
|
|
{ QByteArray r(a); r += b; return r; }
|
|
|
|
const QByteArray &a;
|
|
const QByteArray &b;
|
|
|
|
private:
|
|
QStringBuilder &operator=(const QStringBuilder &) Q_DECL_EQ_DELETE;
|
|
};
|
|
|
|
|
|
template <> struct QConcatenable<char> : private QAbstractConcatenable
|
|
{
|
|
typedef char type;
|
|
typedef QByteArray ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const char) { return 1; }
|
|
#ifndef QT_NO_CAST_FROM_ASCII
|
|
static inline QT_ASCII_CAST_WARN void appendTo(const char c, QChar *&out)
|
|
{
|
|
QAbstractConcatenable::convertFromAscii(c, out);
|
|
}
|
|
#endif
|
|
static inline void appendTo(const char c, char *&out)
|
|
{ *out++ = c; }
|
|
};
|
|
|
|
template <> struct QConcatenable<QLatin1Char>
|
|
{
|
|
typedef QLatin1Char type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const QLatin1Char) { return 1; }
|
|
static inline void appendTo(const QLatin1Char c, QChar *&out)
|
|
{ *out++ = c; }
|
|
static inline void appendTo(const QLatin1Char c, char *&out)
|
|
{ *out++ = c.toLatin1(); }
|
|
};
|
|
|
|
template <> struct QConcatenable<QChar> : private QAbstractConcatenable
|
|
{
|
|
typedef QChar type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const QChar) { return 1; }
|
|
static inline void appendTo(const QChar c, QChar *&out)
|
|
{ *out++ = c; }
|
|
};
|
|
|
|
template <> struct QConcatenable<QChar::SpecialCharacter> : private QAbstractConcatenable
|
|
{
|
|
typedef QChar::SpecialCharacter type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const QChar::SpecialCharacter) { return 1; }
|
|
static inline void appendTo(const QChar::SpecialCharacter c, QChar *&out)
|
|
{ *out++ = c; }
|
|
};
|
|
|
|
template <> struct QConcatenable<QCharRef> : private QAbstractConcatenable
|
|
{
|
|
typedef QCharRef type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(QCharRef) { return 1; }
|
|
static inline void appendTo(QCharRef c, QChar *&out)
|
|
{ *out++ = QChar(c); }
|
|
};
|
|
|
|
template <> struct QConcatenable<QLatin1String> : private QAbstractConcatenable
|
|
{
|
|
typedef QLatin1String type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const QLatin1String a) { return a.size(); }
|
|
static inline void appendTo(const QLatin1String a, QChar *&out)
|
|
{
|
|
appendLatin1To(a.latin1(), a.size(), out);
|
|
out += a.size();
|
|
}
|
|
static inline void appendTo(const QLatin1String a, char *&out)
|
|
{
|
|
if (const char *data = a.data()) {
|
|
memcpy(out, data, a.size());
|
|
out += a.size();
|
|
}
|
|
}
|
|
};
|
|
|
|
template <> struct QConcatenable<QString> : private QAbstractConcatenable
|
|
{
|
|
typedef QString type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
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> : private QAbstractConcatenable
|
|
{
|
|
typedef QStringRef type;
|
|
typedef QString ConvertTo;
|
|
enum { ExactSize = true };
|
|
static int size(const QStringRef &a) { return a.size(); }
|
|
static inline void appendTo(const QStringRef &a, QChar *&out)
|
|
{
|
|
const int n = a.size();
|
|
memcpy(out, reinterpret_cast<const char*>(a.constData()), sizeof(QChar) * n);
|
|
out += n;
|
|
}
|
|
};
|
|
|
|
template <int N> struct QConcatenable<char[N]> : private QAbstractConcatenable
|
|
{
|
|
typedef char type[N];
|
|
typedef QByteArray ConvertTo;
|
|
enum { ExactSize = false };
|
|
static int size(const char[N]) { return N - 1; }
|
|
#ifndef QT_NO_CAST_FROM_ASCII
|
|
static inline void QT_ASCII_CAST_WARN appendTo(const char a[N], QChar *&out)
|
|
{
|
|
QAbstractConcatenable::convertFromAscii(a, N - 1, out);
|
|
}
|
|
#endif
|
|
static inline void appendTo(const char a[N], char *&out)
|
|
{
|
|
while (*a)
|
|
*out++ = *a++;
|
|
}
|
|
};
|
|
|
|
template <int N> struct QConcatenable<const char[N]> : private QAbstractConcatenable
|
|
{
|
|
typedef const char type[N];
|
|
typedef QByteArray ConvertTo;
|
|
enum { ExactSize = false };
|
|
static int size(const char[N]) { return N - 1; }
|
|
#ifndef QT_NO_CAST_FROM_ASCII
|
|
static inline void QT_ASCII_CAST_WARN appendTo(const char a[N], QChar *&out)
|
|
{
|
|
QAbstractConcatenable::convertFromAscii(a, N - 1, out);
|
|
}
|
|
#endif
|
|
static inline void appendTo(const char a[N], char *&out)
|
|
{
|
|
while (*a)
|
|
*out++ = *a++;
|
|
}
|
|
};
|
|
|
|
template <> struct QConcatenable<const char *> : private QAbstractConcatenable
|
|
{
|
|
typedef char const *type;
|
|
typedef QByteArray ConvertTo;
|
|
enum { ExactSize = false };
|
|
static int size(const char *a) { return qstrlen(a); }
|
|
#ifndef QT_NO_CAST_FROM_ASCII
|
|
static inline void QT_ASCII_CAST_WARN appendTo(const char *a, QChar *&out)
|
|
{ QAbstractConcatenable::convertFromAscii(a, -1, out); }
|
|
#endif
|
|
static inline void appendTo(const char *a, char *&out)
|
|
{
|
|
if (!a)
|
|
return;
|
|
while (*a)
|
|
*out++ = *a++;
|
|
}
|
|
};
|
|
|
|
template <> struct QConcatenable<QByteArray> : private QAbstractConcatenable
|
|
{
|
|
typedef QByteArray type;
|
|
typedef QByteArray ConvertTo;
|
|
enum { ExactSize = false };
|
|
static int size(const QByteArray &ba) { return ba.size(); }
|
|
#ifndef QT_NO_CAST_FROM_ASCII
|
|
static inline QT_ASCII_CAST_WARN void appendTo(const QByteArray &ba, QChar *&out)
|
|
{
|
|
QAbstractConcatenable::convertFromAscii(ba.constData(), ba.size(), out);
|
|
}
|
|
#endif
|
|
static inline void appendTo(const QByteArray &ba, char *&out)
|
|
{
|
|
const char *a = ba.constData();
|
|
const char * const end = ba.end();
|
|
while (a != end)
|
|
*out++ = *a++;
|
|
}
|
|
};
|
|
|
|
|
|
template <typename A, typename B>
|
|
struct QConcatenable< QStringBuilder<A, B> >
|
|
{
|
|
typedef QStringBuilder<A, B> type;
|
|
typedef typename QtStringBuilder::ConvertToTypeHelper<typename QConcatenable<A>::ConvertTo, typename QConcatenable<B>::ConvertTo>::ConvertTo ConvertTo;
|
|
enum { ExactSize = QConcatenable<A>::ExactSize && QConcatenable<B>::ExactSize };
|
|
static int size(const type &p)
|
|
{
|
|
return QConcatenable<A>::size(p.a) + QConcatenable<B>::size(p.b);
|
|
}
|
|
template<typename T> static inline void appendTo(const type &p, T *&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);
|
|
}
|
|
|
|
// QT_USE_FAST_OPERATOR_PLUS was introduced in 4.7, QT_USE_QSTRINGBUILDER is to be used from 4.8 onwards
|
|
// QT_USE_FAST_OPERATOR_PLUS does not remove the normal operator+ for QByteArray
|
|
#if defined(QT_USE_FAST_OPERATOR_PLUS) || defined(QT_USE_QSTRINGBUILDER)
|
|
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
|
|
|
|
namespace QtStringBuilder {
|
|
template <typename A, typename B>
|
|
QByteArray &appendToByteArray(QByteArray &a, const QStringBuilder<A, B> &b, char)
|
|
{
|
|
// append 8-bit data to a byte array
|
|
int len = a.size() + QConcatenable< QStringBuilder<A, B> >::size(b);
|
|
a.reserve(len);
|
|
char *it = a.data() + a.size();
|
|
QConcatenable< QStringBuilder<A, B> >::appendTo(b, it);
|
|
a.resize(len); //we need to resize after the appendTo for the case str+=foo+str
|
|
return a;
|
|
}
|
|
|
|
#ifndef QT_NO_CAST_TO_ASCII
|
|
template <typename A, typename B>
|
|
QByteArray &appendToByteArray(QByteArray &a, const QStringBuilder<A, B> &b, QChar)
|
|
{
|
|
return a += QString(b).toUtf8();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <typename A, typename B>
|
|
QByteArray &operator+=(QByteArray &a, const QStringBuilder<A, B> &b)
|
|
{
|
|
return QtStringBuilder::appendToByteArray(a, b,
|
|
typename QConcatenable< QStringBuilder<A, B> >::ConvertTo::value_type());
|
|
}
|
|
|
|
template <typename A, typename B>
|
|
QString &operator+=(QString &a, const QStringBuilder<A, B> &b)
|
|
{
|
|
int len = a.size() + QConcatenable< QStringBuilder<A, B> >::size(b);
|
|
a.reserve(len);
|
|
QChar *it = a.data() + a.size();
|
|
QConcatenable< QStringBuilder<A, B> >::appendTo(b, it);
|
|
a.resize(int(it - a.constData())); //may be smaller than len if there was conversion from utf8
|
|
return a;
|
|
}
|
|
|
|
|
|
QT_END_NAMESPACE
|
|
|
|
#endif // QSTRINGBUILDER_H
|