| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** 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 https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://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 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qglobal.h" |
| #include "qdebug.h" |
| #include "qlocale_p.h" |
| #include "qmutex.h" |
| |
| #include "unicode/uloc.h" |
| #include "unicode/ustring.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| typedef int32_t (*Ptr_u_strToCase)(UChar *dest, int32_t destCapacity, const UChar *src, int32_t srcLength, const char *locale, UErrorCode *pErrorCode); |
| |
| // caseFunc can either be u_strToUpper or u_strToLower |
| static bool qt_u_strToCase(const QString &str, QString *out, const char *localeID, Ptr_u_strToCase caseFunc) |
| { |
| Q_ASSERT(out); |
| |
| int32_t size = str.size(); |
| size += size >> 2; // add 25% for possible expansions |
| QString result(size, Qt::Uninitialized); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| |
| size = caseFunc(reinterpret_cast<UChar *>(result.data()), result.size(), |
| reinterpret_cast<const UChar *>(str.constData()), str.size(), |
| localeID, &status); |
| |
| if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR) |
| return false; |
| |
| if (size < result.size()) { |
| result.resize(size); |
| } else if (size > result.size()) { |
| // the resulting string is larger than our source string |
| result.resize(size); |
| |
| status = U_ZERO_ERROR; |
| size = caseFunc(reinterpret_cast<UChar *>(result.data()), result.size(), |
| reinterpret_cast<const UChar *>(str.constData()), str.size(), |
| localeID, &status); |
| |
| if (U_FAILURE(status)) |
| return false; |
| |
| // if the sizes don't match now, we give up. |
| if (size != result.size()) |
| return false; |
| } |
| |
| *out = result; |
| return true; |
| } |
| |
| QString QIcu::toUpper(const QByteArray &localeID, const QString &str, bool *ok) |
| { |
| QString out; |
| bool err = qt_u_strToCase(str, &out, localeID, u_strToUpper); |
| if (ok) |
| *ok = err; |
| return out; |
| } |
| |
| QString QIcu::toLower(const QByteArray &localeID, const QString &str, bool *ok) |
| { |
| QString out; |
| bool err = qt_u_strToCase(str, &out, localeID, u_strToLower); |
| if (ok) |
| *ok = err; |
| return out; |
| } |
| |
| QT_END_NAMESPACE |