1 files changed, 67 insertions, 34 deletions

diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h
index a93a6389b..798d09702 100644
--- a/src/corelib/tools/qstringbuilder.h
+++ b/src/corelib/tools/qstringbuilder.h
@@ -1,6 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2009 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.
@@ -9,8 +10,8 @@
 ** 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.
+** contained in the Technology Preview License Agreement accompanying
+** this package.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
@@ -20,21 +21,20 @@
 ** 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.
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
 **
-** 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.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
@@ -44,6 +44,12 @@
 
 #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
@@ -60,7 +66,7 @@ public:
     const char *data() const { return m_data; }
 
     template <int N>
-    QLatin1Literal(const char (&str)[N]) 
+    QLatin1Literal(const char (&str)[N])
         : m_size(N - 1), m_data(str) {}
 
 private:
@@ -68,6 +74,21 @@ private:
     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 {};
 
@@ -81,9 +102,12 @@ public:
     {
         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(); }
@@ -93,13 +117,13 @@ public:
 };
 
 
-template <> struct QConcatenable<char>
+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)
     {
-        *out++ = QLatin1Char(c);
+        QAbstractConcatenable::convertFromAscii(c, out);
     }
 };
 
@@ -164,7 +188,7 @@ template <> struct QConcatenable<QString>
     {
         const int n = a.size();
         memcpy(out, reinterpret_cast<const char*>(a.constData()), sizeof(QChar) * n);
-        out += n; 
+        out += n;
     }
 };
 
@@ -176,42 +200,51 @@ template <> struct QConcatenable<QStringRef>
     {
         const int n = a.size();
         memcpy(out, reinterpret_cast<const char*>(a.constData()), sizeof(QChar) * n);
-        out += n; 
+        out += n;
     }
 };
 
 #ifndef QT_NO_CAST_FROM_ASCII
-template <int N> struct QConcatenable<char[N]>
+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)
     {
-        for (int i = 0; i < N - 1; ++i)
-            *out++ = QLatin1Char(a[i]);
+        QAbstractConcatenable::convertFromAscii(a, N, out);
     }
 };
 
-template <> struct QConcatenable<const char *>
+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)
     {
-        while (*a)
-            *out++ = QLatin1Char(*a++);
+        QAbstractConcatenable::convertFromAscii(a, -1, out);
     }
 };
 
-template <> struct QConcatenable<QByteArray>
+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)
     {
-        const char *data = ba.constData();
-        while (*data)
-            *out++ = QLatin1Char(*data++);
+        QAbstractConcatenable::convertFromAscii(ba.constData(), -1, out);
     }
 };
 #endif
@@ -220,7 +253,7 @@ template <typename A, typename B>
 struct QConcatenable< QStringBuilder<A, B> >
 {
     typedef QStringBuilder<A, B> type;
-    static int size(const type &p) 
+    static int size(const type &p)
     {
         return QConcatenable<A>::size(p.a) + QConcatenable<B>::size(p.b);
     }
@@ -235,7 +268,7 @@ template <typename A, typename B>
 QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>
 operator%(const A &a, const B &b)
 {
-   return QStringBuilder<A, B>(a, b);
+   return QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>(a, b);
 }
 
 #ifdef QT_USE_FAST_OPERATOR_PLUS
@@ -243,7 +276,7 @@ template <typename A, typename B>
 QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>
 operator+(const A &a, const B &b)
 {
-   return QStringBuilder<A, B>(a, b);
+   return QStringBuilder<typename QConcatenable<A>::type, typename QConcatenable<B>::type>(a, b);
 }
 #endif