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3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtCore module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
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12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
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19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
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25 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
45 #include "qlocale_p.h"
48 #include "unicode/uversion.h"
49 #include "unicode/ucol.h"
50 #include "unicode/uloc.h"
51 #include "unicode/ustring.h"
55 typedef int32_t (*Ptr_u_strToCase)(UChar *dest, int32_t destCapacity, const UChar *src, int32_t srcLength, const char *locale, UErrorCode *pErrorCode);
57 bool QIcu::strcoll(const QByteArray &localeID,
58 const QChar *source, int sourceLength, const QChar *target, int targetLength, int *result)
64 UErrorCode icuStatus = U_ZERO_ERROR;
65 UCollator *collator = ucol_open(localeID, &icuStatus);
67 if (U_FAILURE((icuStatus)))
70 *result = ucol_strcoll(collator,
71 reinterpret_cast<const UChar *>(source), int32_t(sourceLength),
72 reinterpret_cast<const UChar *>(target), int32_t(targetLength));
79 // caseFunc can either be u_strToUpper or u_strToLower
80 static bool qt_u_strToCase(const QString &str, QString *out, const char *localeID, Ptr_u_strToCase caseFunc)
84 int32_t size = str.size();
85 size += size >> 2; // add 25% for possible expansions
86 QString result(size, Qt::Uninitialized);
88 UErrorCode status = U_ZERO_ERROR;
90 size = caseFunc(reinterpret_cast<UChar *>(result.data()), result.size(),
91 reinterpret_cast<const UChar *>(str.constData()), str.size(),
94 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
97 if (size < result.size()) {
99 } else if (size > result.size()) {
100 // the resulting string is larger than our source string
103 status = U_ZERO_ERROR;
104 size = caseFunc(reinterpret_cast<UChar *>(result.data()), result.size(),
105 reinterpret_cast<const UChar *>(str.constData()), str.size(),
108 if (U_FAILURE(status))
111 // if the sizes don't match now, we give up.
112 if (size != result.size())
120 QString QIcu::toUpper(const QByteArray &localeID, const QString &str, bool *ok)
123 bool err = qt_u_strToCase(str, &out, localeID, u_strToUpper);
129 QString QIcu::toLower(const QByteArray &localeID, const QString &str, bool *ok)
132 bool err = qt_u_strToCase(str, &out, localeID, u_strToLower);