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Diffstat (limited to 'src/corelib/tools/qlocale.cpp')
| -rw-r--r-- | src/corelib/tools/qlocale.cpp | 8018 |
1 files changed, 8018 insertions, 0 deletions
diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp new file mode 100644 index 0000000..b3c1466 --- /dev/null +++ b/src/corelib/tools/qlocale.cpp @@ -0,0 +1,8018 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** 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 1.0, 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 are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qglobal.h" + +#ifndef QT_NO_SYSTEMLOCALE +#define QLOCALE_CPP +QT_BEGIN_NAMESPACE +class QSystemLocale; +static QSystemLocale *QSystemLocale_globalSystemLocale(); +QT_END_NAMESPACE +#endif + +#include "qplatformdefs.h" + +#include "qdatastream.h" +#include "qstring.h" +#include "qlocale.h" +#include "qlocale_p.h" +#include "qdatetime_p.h" +#include "qnamespace.h" +#include "qdatetime.h" +#include "qstringlist.h" +#include "qvariant.h" +#if defined(Q_WS_WIN) +# include "qt_windows.h" +# include <time.h> +#endif +#if !defined(QWS) && defined(Q_OS_MAC) +# include "private/qcore_mac_p.h" +# include <CoreFoundation/CoreFoundation.h> +#endif +#include "private/qnumeric_p.h" + +#include <ctype.h> +#include <float.h> +#include <limits.h> +#include <math.h> +#include <stdlib.h> +#include <qdebug.h> +#include <time.h> + +#if defined(Q_OS_SYMBIAN) +#include <e32std.h> +#include "private/qcore_symbian_p.h" +#endif + +#if defined(Q_OS_LINUX) && !defined(__UCLIBC__) +# include <fenv.h> +#endif + +#if !defined(QT_QLOCALE_NEEDS_VOLATILE) +# if defined(Q_CC_GNU) +# if __GNUC__ == 4 +# define QT_QLOCALE_NEEDS_VOLATILE +# elif defined(Q_OS_WIN) +# define QT_QLOCALE_NEEDS_VOLATILE +# endif +# endif +#endif + +#if defined(QT_QLOCALE_NEEDS_VOLATILE) +# define NEEDS_VOLATILE volatile +#else +# define NEEDS_VOLATILE +#endif + +// Sizes as defined by the ISO C99 standard - fallback +#ifndef LLONG_MAX +# define LLONG_MAX Q_INT64_C(0x7fffffffffffffff) +#endif +#ifndef LLONG_MIN +# define LLONG_MIN (-LLONG_MAX - Q_INT64_C(1)) +#endif +#ifndef ULLONG_MAX +# define ULLONG_MAX Q_UINT64_C(0xffffffffffffffff) +#endif + +#define CONVERSION_BUFF_SIZE 255 + +QT_BEGIN_NAMESPACE + +#ifndef QT_QLOCALE_USES_FCVT +static char *_qdtoa( NEEDS_VOLATILE double d, int mode, int ndigits, int *decpt, + int *sign, char **rve, char **digits_str); +#endif +Q_CORE_EXPORT char *qdtoa(double d, int mode, int ndigits, int *decpt, + int *sign, char **rve, char **digits_str); +Q_CORE_EXPORT double qstrtod(const char *s00, char const **se, bool *ok); +Q_CORE_EXPORT qlonglong qstrtoll(const char *nptr, const char **endptr, register int base, bool *ok); +static qulonglong qstrtoull(const char *nptr, const char **endptr, register int base, bool *ok); + +#if defined(Q_CC_MWERKS) && defined(Q_OS_WIN32) +inline bool isascii(int c) +{ + return (c >= 0 && c <=127); +} +#endif + +/****************************************************************************** +** Helpers for accessing Qt locale database +*/ + +QT_BEGIN_INCLUDE_NAMESPACE +#include "qlocale_data_p.h" +QT_END_INCLUDE_NAMESPACE + +QLocale::MeasurementSystem QLocalePrivate::measurementSystem() const +{ + for (int i = 0; i < ImperialMeasurementSystemsCount; ++i) { + if (ImperialMeasurementSystems[i].languageId == m_language_id + && ImperialMeasurementSystems[i].countryId == m_country_id) { + return QLocale::ImperialSystem; + } + } + return QLocale::MetricSystem; +} + +// Assumes that code is a +// QChar code[3]; +// If the code is two-digit the third digit must be 0 +static QLocale::Language codeToLanguage(const QChar *code) +{ + ushort uc1 = code[0].unicode(); + ushort uc2 = code[1].unicode(); + ushort uc3 = code[2].unicode(); + + if (uc1 == 'n' && uc2 == 'o' && uc3 == 0) + uc2 = 'b'; + + const unsigned char *c = language_code_list; + for (; *c != 0; c += 3) { + if (uc1 == c[0] && uc2 == c[1] && uc3 == c[2]) + return QLocale::Language((c - language_code_list)/3); + } + + return QLocale::C; +} + +// Assumes that code is a +// QChar code[2]; +static QLocale::Country codeToCountry(const QChar *code) +{ + ushort uc1 = code[0].unicode(); + ushort uc2 = code[1].unicode(); + + const unsigned char *c = country_code_list; + for (; *c != 0; c += 2) { + if (uc1 == c[0] && uc2 == c[1]) + return QLocale::Country((c - country_code_list)/2); + } + + return QLocale::AnyCountry; +} + +static QString languageToCode(QLocale::Language language) +{ + if (language == QLocale::C) + return QLatin1String("C"); + + const unsigned char *c = language_code_list + 3*(uint(language)); + + QString code; + code.resize(c[2] == 0 ? 2 : 3); + + code[0] = ushort(c[0]); + code[1] = ushort(c[1]); + if (c[2] != 0) + code[2] = ushort(c[2]); + + return code; +} + +static QString countryToCode(QLocale::Country country) +{ + if (country == QLocale::AnyCountry) + return QString(); + + QString code; + code.resize(2); + const unsigned char *c = country_code_list + 2*(uint(country)); + code[0] = ushort(c[0]); + code[1] = ushort(c[1]); + return code; +} + +static const QLocalePrivate *findLocale(QLocale::Language language, QLocale::Country country) +{ + unsigned language_id = language; + unsigned country_id = country; + + uint idx = locale_index[language_id]; + + const QLocalePrivate *d = locale_data + idx; + + if (idx == 0) // default language has no associated country + return d; + + if (country == QLocale::AnyCountry) + return d; + + Q_ASSERT(d->languageId() == language_id); + + while (d->languageId() == language_id + && d->countryId() != country_id) + ++d; + + if (d->countryId() == country_id + && d->languageId() == language_id) + return d; + + return locale_data + idx; +} + +static bool splitLocaleName(const QString &name, QChar *lang_begin, QChar *cntry_begin) +{ + for (int i = 0; i < 3; ++i) + lang_begin[i] = 0; + for (int i = 0; i < 2; ++i) + cntry_begin[i] = 0; + + int l = name.length(); + + QChar *lang = lang_begin; + QChar *cntry = cntry_begin; + + int state = 0; + const QChar *uc = name.unicode(); + for (int i = 0; i < l; ++i) { + if (uc->unicode() == '.' || uc->unicode() == '@') + break; + + switch (state) { + case 0: + // parsing language + if (uc->unicode() == '_') { + state = 1; + break; + } + if (lang - lang_begin == 3) + return false; + if (uc->unicode() < 'a' || uc->unicode() > 'z') + return false; + + *lang = *uc; + ++lang; + break; + case 1: + // parsing country + if (cntry - cntry_begin == 2) { + cntry_begin[0] = 0; + break; + } + + *cntry = *uc; + ++cntry; + break; + } + + ++uc; + } + + int lang_len = lang - lang_begin; + + return lang_len == 2 || lang_len == 3; +} + +static void getLangAndCountry(const QString &name, QLocale::Language &lang, QLocale::Country &cntry) +{ + lang = QLocale::C; + cntry = QLocale::AnyCountry; + + QChar lang_code[3]; + QChar cntry_code[2]; + if (!splitLocaleName(name, lang_code, cntry_code)) + return; + + lang = codeToLanguage(lang_code); + if (lang == QLocale::C) + return; + + if (cntry_code[0].unicode() != 0) + cntry = codeToCountry(cntry_code); +} + +static const QLocalePrivate *findLocale(const QString &name) +{ + QLocale::Language lang; + QLocale::Country cntry; + getLangAndCountry(name, lang, cntry); + + return findLocale(lang, cntry); +} +static QString readEscapedFormatString(const QString &format, int *idx) +{ + int &i = *idx; + + Q_ASSERT(format.at(i).unicode() == '\''); + ++i; + if (i == format.size()) + return QString(); + if (format.at(i).unicode() == '\'') { // "''" outside of a quoted stirng + ++i; + return QLatin1String("'"); + } + + QString result; + + while (i < format.size()) { + if (format.at(i).unicode() == '\'') { + if (i + 1 < format.size() && format.at(i + 1).unicode() == '\'') { + // "''" inside of a quoted string + result.append(QLatin1Char('\'')); + i += 2; + } else { + break; + } + } else { + result.append(format.at(i++)); + } + } + if (i < format.size()) + ++i; + + return result; +} + +static int repeatCount(const QString &s, int i) +{ + QChar c = s.at(i); + int j = i + 1; + while (j < s.size() && s.at(j) == c) + ++j; + return j - i; +} + +static const QLocalePrivate *default_lp = 0; +static uint default_number_options = 0; + +#ifndef QT_NO_SYSTEMLOCALE +static QByteArray envVarLocale() +{ + static QByteArray lang = 0; +#ifdef Q_OS_UNIX + lang = qgetenv("LC_ALL"); + if (lang.isNull()) + lang = qgetenv("LC_NUMERIC"); + if (lang.isNull()) +#endif + lang = qgetenv("LANG"); + return lang; +} + + +#if defined(Q_OS_WIN) +/****************************************************************************** +** Wrappers for Windows locale system functions +*/ + +static const char *winLangCodeToIsoName(int code); +static QString winIso639LangName(LCID id = LOCALE_USER_DEFAULT); +static QString winIso3116CtryName(LCID id = LOCALE_USER_DEFAULT); + +static QString getWinLocaleInfo(LCTYPE type) +{ + int cnt = 0; + + LCID id = GetUserDefaultLCID(); + + QT_WA({ + cnt = GetLocaleInfoW(id, type, 0, 0)*2; + } , { + cnt = GetLocaleInfoA(id, type, 0, 0); + }); + + if (cnt == 0) { + qWarning("QLocale: empty windows locale info (%d)", (int)type); + return QString(); + } + + QByteArray buff(cnt, 0); + + QT_WA({ + cnt = GetLocaleInfoW(id, type, + reinterpret_cast<wchar_t*>(buff.data()), + buff.size()/2); + } , { + cnt = GetLocaleInfoA(id, type, + buff.data(), buff.size()); + }); + + if (cnt == 0) { + qWarning("QLocale: empty windows locale info (%d)", (int)type); + return QString(); + } + + QString result; + QT_WA({ + result = QString::fromUtf16(reinterpret_cast<ushort*>(buff.data())); + } , { + result = QString::fromLocal8Bit(buff.data()); + }); + return result; +} + +QByteArray getWinLocaleName(LCID id = LOCALE_USER_DEFAULT) +{ + QByteArray result; + if (id == LOCALE_USER_DEFAULT) { + result = envVarLocale(); + QChar lang[3]; + QChar cntry[2]; + if ( result == "C" || !result.isEmpty() + && splitLocaleName(QString::fromLocal8Bit(result), lang, cntry) ) { + long id = 0; + bool ok = false; + id = qstrtoll(result.data(), 0, 0, &ok); + if ( !ok || id == 0 || id < INT_MIN || id > INT_MAX ) + return result; + else + return winLangCodeToIsoName( (int)id ); + } + } + + if (QSysInfo::WindowsVersion == QSysInfo::WV_95 + || (QSysInfo::WindowsVersion & QSysInfo::WV_CE_based)) { + result = winLangCodeToIsoName(id != LOCALE_USER_DEFAULT ? id : GetUserDefaultLCID()); + } else { + if (id == LOCALE_USER_DEFAULT) + id = GetUserDefaultLCID(); + QString resultuage = winIso639LangName(id); + QString country = winIso3116CtryName(id); + result = resultuage.toLatin1(); + if (!country.isEmpty()) { + result += '_'; + result += country.toLatin1(); + } + } + + return result; +} + +Q_CORE_EXPORT QLocale qt_localeFromLCID(LCID id) +{ + return QLocale(QString::fromLatin1(getWinLocaleName(id))); +} + +static QString winToQtFormat(const QString &sys_fmt) +{ + QString result; + int i = 0; + + while (i < sys_fmt.size()) { + if (sys_fmt.at(i).unicode() == QLatin1Char('\'')) { + QString text = readEscapedFormatString(sys_fmt, &i); + if (text == QLatin1String("'")) + result += QLatin1String("''"); + else + result += QLatin1Char('\'') + text + QLatin1Char('\''); + continue; + } + + QChar c = sys_fmt.at(i); + int repeat = repeatCount(sys_fmt, i); + + switch (c.unicode()) { + // Date + case 'y': + if (repeat > 5) + repeat = 5; + else if (repeat == 3) + repeat = 2; + switch (repeat) { + case 1: + result += QLatin1String("yy"); // "y" unsupported by Qt, use "yy" + break; + case 5: + result += QLatin1String("yyyy"); // "yyyyy" same as "yyyy" on Windows + break; + default: + result += QString(repeat, QLatin1Char('y')); + break; + } + break; + case 'g': + if (repeat > 2) + repeat = 2; + switch (repeat) { + case 2: + break; // no equivalent of "gg" in Qt + default: + result += QLatin1Char('g'); + break; + } + break; + case 't': + if (repeat > 2) + repeat = 2; + result += QLatin1String("AP"); // "t" unsupported, use "AP" + break; + default: + result += QString(repeat, c); + break; + } + + i += repeat; + } + + return result; +} + + + +static QString winDateToString(const QDate &date, DWORD flags) +{ + SYSTEMTIME st; + memset(&st, 0, sizeof(SYSTEMTIME)); + st.wYear = date.year(); + st.wMonth = date.month(); + st.wDay = date.day(); + + LCID id = GetUserDefaultLCID(); + + QT_WA({ + TCHAR buf[255]; + if (GetDateFormatW(id, flags, &st, 0, buf, 255)) + return QString::fromUtf16((ushort*)buf); + } , { + char buf[255]; + if (GetDateFormatA(id, flags, &st, 0, (char*)&buf, 255)) + return QString::fromLocal8Bit(buf); + }); + + return QString(); +} + +static QString winTimeToString(const QTime &time) +{ + SYSTEMTIME st; + memset(&st, 0, sizeof(SYSTEMTIME)); + st.wHour = time.hour(); + st.wMinute = time.minute(); + st.wSecond = time.second(); + st.wMilliseconds = 0; + + DWORD flags = 0; + LCID id = GetUserDefaultLCID(); + + QT_WA({ + TCHAR buf[255]; + if (GetTimeFormatW(id, flags, &st, 0, buf, 255)) + return QString::fromUtf16((ushort*)buf); + } , { + char buf[255]; + if (GetTimeFormatA(id, flags, &st, 0, (char*)&buf, 255)) + return QString::fromLocal8Bit(buf); + }); + + return QString(); +} + +static QString winDayName(int day, bool short_format) +{ + static const LCTYPE short_day_map[] + = { LOCALE_SABBREVDAYNAME1, LOCALE_SABBREVDAYNAME2, + LOCALE_SABBREVDAYNAME3, LOCALE_SABBREVDAYNAME4, LOCALE_SABBREVDAYNAME5, + LOCALE_SABBREVDAYNAME6, LOCALE_SABBREVDAYNAME7 }; + + static const LCTYPE long_day_map[] + = { LOCALE_SDAYNAME1, LOCALE_SDAYNAME2, + LOCALE_SDAYNAME3, LOCALE_SDAYNAME4, LOCALE_SDAYNAME5, + LOCALE_SDAYNAME6, LOCALE_SDAYNAME7 }; + + day -= 1; + + LCTYPE type = short_format + ? short_day_map[day] : long_day_map[day]; + return getWinLocaleInfo(type); +} + +static QString winMonthName(int month, bool short_format) +{ + static const LCTYPE short_month_map[] + = { LOCALE_SABBREVMONTHNAME1, LOCALE_SABBREVMONTHNAME2, LOCALE_SABBREVMONTHNAME3, + LOCALE_SABBREVMONTHNAME4, LOCALE_SABBREVMONTHNAME5, LOCALE_SABBREVMONTHNAME6, + LOCALE_SABBREVMONTHNAME7, LOCALE_SABBREVMONTHNAME8, LOCALE_SABBREVMONTHNAME9, + LOCALE_SABBREVMONTHNAME10, LOCALE_SABBREVMONTHNAME11, LOCALE_SABBREVMONTHNAME12 }; + + static const LCTYPE long_month_map[] + = { LOCALE_SMONTHNAME1, LOCALE_SMONTHNAME2, LOCALE_SMONTHNAME3, + LOCALE_SMONTHNAME4, LOCALE_SMONTHNAME5, LOCALE_SMONTHNAME6, + LOCALE_SMONTHNAME7, LOCALE_SMONTHNAME8, LOCALE_SMONTHNAME9, + LOCALE_SMONTHNAME10, LOCALE_SMONTHNAME11, LOCALE_SMONTHNAME12 }; + + month -= 1; + if (month < 0 || month > 11) + return QString(); + + LCTYPE type = short_format ? short_month_map[month] : long_month_map[month]; + return getWinLocaleInfo(type); +} + +static QLocale::MeasurementSystem winSystemMeasurementSystem() +{ + LCID id = GetUserDefaultLCID(); + TCHAR output[2]; + + if (GetLocaleInfo(id, LOCALE_IMEASURE, output, 2)) { + QString iMeasure = QT_WA_INLINE( + QString::fromUtf16(reinterpret_cast<ushort*>(output)), + QString::fromLocal8Bit(reinterpret_cast<char*>(output))); + if (iMeasure == QString::fromLatin1("1")) { + return QLocale::ImperialSystem; + } + } + + return QLocale::MetricSystem; +} + +static QString winSystemAMText() +{ + LCID id = GetUserDefaultLCID(); + TCHAR output[15]; // maximum length including terminating zero character for Win2003+ + + if (GetLocaleInfo(id, LOCALE_S1159, output, 15)) { + return QT_WA_INLINE( + QString::fromUtf16(reinterpret_cast<ushort*>(output)), + QString::fromLocal8Bit(reinterpret_cast<char*>(output))); + } + + return QString(); +} + +static QString winSystemPMText() +{ + LCID id = GetUserDefaultLCID(); + TCHAR output[15]; // maximum length including terminating zero character for Win2003+ + + if (GetLocaleInfo(id, LOCALE_S2359, output, 15)) { + return QT_WA_INLINE( + QString::fromUtf16(reinterpret_cast<ushort*>(output)), + QString::fromLocal8Bit(reinterpret_cast<char*>(output))); + } + + return QString(); +} + +QLocale QSystemLocale::fallbackLocale() const +{ + return QLocale(QString::fromLatin1(getWinLocaleName())); +} + +QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const +{ + LCTYPE locale_info = 0; + bool format_string = false; + + switch(type) { +// case Name: +// return getWinLocaleName(); + case DecimalPoint: + locale_info = LOCALE_SDECIMAL; + break; + case GroupSeparator: + locale_info = LOCALE_STHOUSAND; + break; + case NegativeSign: + locale_info = LOCALE_SNEGATIVESIGN; + break; + case PositiveSign: + locale_info = LOCALE_SPOSITIVESIGN; + break; + case DateFormatLong: + locale_info = LOCALE_SLONGDATE; + format_string = true; + break; + case DateFormatShort: + locale_info = LOCALE_SSHORTDATE; + format_string = true; + break; + case TimeFormatLong: + case TimeFormatShort: + locale_info = LOCALE_STIMEFORMAT; + format_string = true; + break; + + case DateTimeFormatLong: + case DateTimeFormatShort: + return query(type == DateTimeFormatLong ? DateFormatLong : DateFormatShort).toString() + + QLatin1Char(' ') + query(type == DateTimeFormatLong ? TimeFormatLong : TimeFormatShort).toString(); + case DayNameLong: + case DayNameShort: + return winDayName(in.toInt(), (type == DayNameShort)); + case MonthNameLong: + case MonthNameShort: + return winMonthName(in.toInt(), (type == MonthNameShort)); + case DateToStringShort: + case DateToStringLong: + return winDateToString(in.toDate(), type == DateToStringShort ? DATE_SHORTDATE : DATE_LONGDATE); + case TimeToStringShort: + case TimeToStringLong: + return winTimeToString(in.toTime()); + case DateTimeToStringShort: + case DateTimeToStringLong: { + const QDateTime dt = in.toDateTime(); + return winDateToString(dt.date(), type == DateTimeToStringShort ? DATE_SHORTDATE : DATE_LONGDATE) + + QLatin1Char(' ') + winTimeToString(dt.time()); } + + case ZeroDigit: + locale_info = LOCALE_SNATIVEDIGITS; + break; + + case LanguageId: + case CountryId: { + QString locale = QString::fromLatin1(getWinLocaleName()); + QLocale::Language lang; + QLocale::Country cntry; + getLangAndCountry(locale, lang, cntry); + if (type == LanguageId) + return lang; + if (cntry == QLocale::AnyCountry) + return fallbackLocale().country(); + return cntry; + } + + case MeasurementSystem: + return QVariant(static_cast<int>(winSystemMeasurementSystem())); + + case AMText: + return QVariant(winSystemAMText()); + case PMText: + return QVariant(winSystemPMText()); + default: + break; + } + if (locale_info) { + QString result = getWinLocaleInfo(locale_info); + if (format_string) + result = winToQtFormat(result); + if (!result.isEmpty()) + return result; + } + return QVariant(); +} + +/* Win95 doesn't have a function to return the ISO lang/country name of the user's locale. + Instead it can return a "Windows code". This maps windows codes to ISO country names. */ + +struct WindowsToISOListElt { + int windows_code; + char iso_name[6]; +}; + +static const WindowsToISOListElt windows_to_iso_list[] = { + { 0x0401, "ar_SA" }, + { 0x0402, "bg\0 " }, + { 0x0403, "ca\0 " }, + { 0x0404, "zh_TW" }, + { 0x0405, "cs\0 " }, + { 0x0406, "da\0 " }, + { 0x0407, "de\0 " }, + { 0x0408, "el\0 " }, + { 0x0409, "en_US" }, + { 0x040a, "es\0 " }, + { 0x040b, "fi\0 " }, + { 0x040c, "fr\0 " }, + { 0x040d, "he\0 " }, + { 0x040e, "hu\0 " }, + { 0x040f, "is\0 " }, + { 0x0410, "it\0 " }, + { 0x0411, "ja\0 " }, + { 0x0412, "ko\0 " }, + { 0x0413, "nl\0 " }, + { 0x0414, "no\0 " }, + { 0x0415, "pl\0 " }, + { 0x0416, "pt_BR" }, + { 0x0418, "ro\0 " }, + { 0x0419, "ru\0 " }, + { 0x041a, "hr\0 " }, + { 0x041c, "sq\0 " }, + { 0x041d, "sv\0 " }, + { 0x041e, "th\0 " }, + { 0x041f, "tr\0 " }, + { 0x0420, "ur\0 " }, + { 0x0421, "in\0 " }, + { 0x0422, "uk\0 " }, + { 0x0423, "be\0 " }, + { 0x0425, "et\0 " }, + { 0x0426, "lv\0 " }, + { 0x0427, "lt\0 " }, + { 0x0429, "fa\0 " }, + { 0x042a, "vi\0 " }, + { 0x042d, "eu\0 " }, + { 0x042f, "mk\0 " }, + { 0x0436, "af\0 " }, + { 0x0438, "fo\0 " }, + { 0x0439, "hi\0 " }, + { 0x043e, "ms\0 " }, + { 0x0458, "mt\0 " }, + { 0x0801, "ar_IQ" }, + { 0x0804, "zh_CN" }, + { 0x0807, "de_CH" }, + { 0x0809, "en_GB" }, + { 0x080a, "es_MX" }, + { 0x080c, "fr_BE" }, + { 0x0810, "it_CH" }, + { 0x0812, "ko\0 " }, + { 0x0813, "nl_BE" }, + { 0x0814, "no\0 " }, + { 0x0816, "pt\0 " }, + { 0x081a, "sr\0 " }, + { 0x081d, "sv_FI" }, + { 0x0c01, "ar_EG" }, + { 0x0c04, "zh_HK" }, + { 0x0c07, "de_AT" }, + { 0x0c09, "en_AU" }, + { 0x0c0a, "es\0 " }, + { 0x0c0c, "fr_CA" }, + { 0x0c1a, "sr\0 " }, + { 0x1001, "ar_LY" }, + { 0x1004, "zh_SG" }, + { 0x1007, "de_LU" }, + { 0x1009, "en_CA" }, + { 0x100a, "es_GT" }, + { 0x100c, "fr_CH" }, + { 0x1401, "ar_DZ" }, + { 0x1407, "de_LI" }, + { 0x1409, "en_NZ" }, + { 0x140a, "es_CR" }, + { 0x140c, "fr_LU" }, + { 0x1801, "ar_MA" }, + { 0x1809, "en_IE" }, + { 0x180a, "es_PA" }, + { 0x1c01, "ar_TN" }, + { 0x1c09, "en_ZA" }, + { 0x1c0a, "es_DO" }, + { 0x2001, "ar_OM" }, + { 0x2009, "en_JM" }, + { 0x200a, "es_VE" }, + { 0x2401, "ar_YE" }, + { 0x2409, "en\0 " }, + { 0x240a, "es_CO" }, + { 0x2801, "ar_SY" }, + { 0x2809, "en_BZ" }, + { 0x280a, "es_PE" }, + { 0x2c01, "ar_JO" }, + { 0x2c09, "en_TT" }, + { 0x2c0a, "es_AR" }, + { 0x3001, "ar_LB" }, + { 0x300a, "es_EC" }, + { 0x3401, "ar_KW" }, + { 0x340a, "es_CL" }, + { 0x3801, "ar_AE" }, + { 0x380a, "es_UY" }, + { 0x3c01, "ar_BH" }, + { 0x3c0a, "es_PY" }, + { 0x4001, "ar_QA" }, + { 0x400a, "es_BO" }, + { 0x440a, "es_SV" }, + { 0x480a, "es_HN" }, + { 0x4c0a, "es_NI" }, + { 0x500a, "es_PR" } +}; + +static const int windows_to_iso_count + = sizeof(windows_to_iso_list)/sizeof(WindowsToISOListElt); + +static const char *winLangCodeToIsoName(int code) +{ + int cmp = code - windows_to_iso_list[0].windows_code; + if (cmp < 0) + return 0; + + if (cmp == 0) + return windows_to_iso_list[0].iso_name; + + int begin = 0; + int end = windows_to_iso_count; + + while (end - begin > 1) { + uint mid = (begin + end)/2; + + const WindowsToISOListElt *elt = windows_to_iso_list + mid; + int cmp = code - elt->windows_code; + if (cmp < 0) + end = mid; + else if (cmp > 0) + begin = mid; + else + return elt->iso_name; + } + + return 0; + +} + +static QString winIso639LangName(LCID id) +{ + QString result; + + // Windows returns the wrong ISO639 for some languages, we need to detect them here using + // the language code + QString lang_code; + QT_WA({ + TCHAR out[256]; + if (GetLocaleInfoW(id, LOCALE_ILANGUAGE, out, 255)) + lang_code = QString::fromUtf16((ushort*)out); + } , { + char out[256]; + if (GetLocaleInfoA(id, LOCALE_ILANGUAGE, out, 255)) + lang_code = QString::fromLocal8Bit(out); + }); + + if (!lang_code.isEmpty()) { + const char *endptr; + bool ok; + QByteArray latin1_lang_code = lang_code.toLatin1(); + int i = qstrtoull(latin1_lang_code, &endptr, 16, &ok); + if (ok && *endptr == '\0') { + switch (i) { + case 0x814: + result = QLatin1String("nn"); // Nynorsk + break; + default: + break; + } + } + } + + if (!result.isEmpty()) + return result; + + // not one of the problematic languages - do the usual lookup + QT_WA({ + TCHAR out[256]; + if (GetLocaleInfoW(id, LOCALE_SISO639LANGNAME , out, 255)) + result = QString::fromUtf16((ushort*)out); + } , { + char out[256]; + if (GetLocaleInfoA(id, LOCALE_SISO639LANGNAME, out, 255)) + result = QString::fromLocal8Bit(out); + }); + + return result; +} + +static QString winIso3116CtryName(LCID id) +{ + QString result; + + QT_WA({ + TCHAR out[256]; + if (GetLocaleInfoW(id, LOCALE_SISO3166CTRYNAME, out, 255)) + result = QString::fromUtf16((ushort*)out); + } , { + char out[256]; + if (GetLocaleInfoA(id, LOCALE_SISO3166CTRYNAME, out, 255)) + result = QString::fromLocal8Bit(out); + }); + + return result; +} + + +#elif defined(Q_OS_MAC) +/****************************************************************************** +** Wrappers for Mac locale system functions +*/ + +static QByteArray getMacLocaleName() +{ + QByteArray result = envVarLocale(); + + QChar lang[3]; + QChar cntry[2]; + if (result.isEmpty() || result != "C" + && !splitLocaleName(QString::fromLocal8Bit(result), lang, cntry)) { + QCFType<CFLocaleRef> l = CFLocaleCopyCurrent(); + CFStringRef locale = CFLocaleGetIdentifier(l); + result = QCFString::toQString(locale).toUtf8(); + } + return result; +} + +static QString macMonthName(int month, bool short_format) +{ + month -= 1; + if (month < 0 || month > 11) + return QString(); + +#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4) + if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) { + QCFType<CFDateFormatterRef> formatter + = CFDateFormatterCreate(0, QCFType<CFLocaleRef>(CFLocaleCopyCurrent()), + kCFDateFormatterNoStyle, kCFDateFormatterNoStyle); + QCFType<CFArrayRef> values + = static_cast<CFArrayRef>(CFDateFormatterCopyProperty(formatter, + short_format ? kCFDateFormatterShortMonthSymbols + : kCFDateFormatterMonthSymbols)); + if (values != 0) { + CFStringRef cfstring = static_cast<CFStringRef>(CFArrayGetValueAtIndex(values, month)); + return QCFString::toQString(cfstring); + } + } +#endif + return QString(); +} + + +static QString macDayName(int day, bool short_format) +{ + if (day < 1 || day > 7) + return QString(); + +#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4) + if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) { + QCFType<CFDateFormatterRef> formatter + = CFDateFormatterCreate(0, QCFType<CFLocaleRef>(CFLocaleCopyCurrent()), + kCFDateFormatterNoStyle, kCFDateFormatterNoStyle); + QCFType<CFArrayRef> values = static_cast<CFArrayRef>(CFDateFormatterCopyProperty(formatter, + short_format ? kCFDateFormatterShortWeekdaySymbols + : kCFDateFormatterWeekdaySymbols)); + if (values != 0) { + CFStringRef cfstring = static_cast<CFStringRef>(CFArrayGetValueAtIndex(values, day % 7)); + return QCFString::toQString(cfstring); + } + } +#endif + return QString(); +} + +static QString macDateToString(const QDate &date, bool short_format) +{ + CFGregorianDate macGDate; + macGDate.year = date.year(); + macGDate.month = date.month(); + macGDate.day = date.day(); + macGDate.hour = 0; + macGDate.minute = 0; + macGDate.second = 0.0; + QCFType<CFDateRef> myDate + = CFDateCreate(0, CFGregorianDateGetAbsoluteTime(macGDate, + QCFType<CFTimeZoneRef>(CFTimeZoneCopyDefault()))); + QCFType<CFLocaleRef> mylocale = CFLocaleCopyCurrent(); + CFDateFormatterStyle style = short_format ? kCFDateFormatterShortStyle : kCFDateFormatterLongStyle; + QCFType<CFDateFormatterRef> myFormatter + = CFDateFormatterCreate(kCFAllocatorDefault, + mylocale, style, + kCFDateFormatterNoStyle); + return QCFString(CFDateFormatterCreateStringWithDate(0, myFormatter, myDate)); +} + +static QString macTimeToString(const QTime &time, bool short_format) +{ + CFGregorianDate macGDate; + // Assume this is local time and the current date + QDate dt = QDate::currentDate(); + macGDate.year = dt.year(); + macGDate.month = dt.month(); + macGDate.day = dt.day(); + macGDate.hour = time.hour(); + macGDate.minute = time.minute(); + macGDate.second = time.second(); + QCFType<CFDateRef> myDate + = CFDateCreate(0, CFGregorianDateGetAbsoluteTime(macGDate, + QCFType<CFTimeZoneRef>(CFTimeZoneCopyDefault()))); + + QCFType<CFLocaleRef> mylocale = CFLocaleCopyCurrent(); + CFDateFormatterStyle style = short_format ? kCFDateFormatterShortStyle : kCFDateFormatterLongStyle; + QCFType<CFDateFormatterRef> myFormatter = CFDateFormatterCreate(kCFAllocatorDefault, + mylocale, + kCFDateFormatterNoStyle, + style); + return QCFString(CFDateFormatterCreateStringWithDate(0, myFormatter, myDate)); +} + +static QString macToQtFormat(const QString &sys_fmt) +{ + QString result; + int i = 0; + + while (i < sys_fmt.size()) { + if (sys_fmt.at(i).unicode() == '\'') { + QString text = readEscapedFormatString(sys_fmt, &i); + if (text == QLatin1String("'")) + result += QLatin1String("''"); + else + result += QLatin1Char('\'') + text + QLatin1Char('\''); + continue; + } + + QChar c = sys_fmt.at(i); + int repeat = repeatCount(sys_fmt, i); + + switch (c.unicode()) { + case 'G': // Qt doesn't support these :( + case 'Y': + case 'D': + case 'F': + case 'w': + case 'W': + case 'g': + break; + + case 'u': // extended year - use 'y' + if (repeat < 4) + result += QLatin1String("yy"); + else + result += QLatin1String("yyyy"); + break; + case 'S': // fractional second + if (repeat < 3) + result += QLatin1String("z"); + else + result += QLatin1String("zzz"); + break; + case 'E': + if (repeat <= 3) + result += QLatin1String("ddd"); + else + result += QLatin1String("dddd"); + break; + case 'e': + if (repeat >= 2) + result += QLatin1String("dd"); + else + result += QLatin1String("d"); + break; + case 'a': + result += QLatin1String("AP"); + break; + case 'k': + result += QString(repeat, QLatin1Char('H')); + break; + case 'K': + result += QString(repeat, QLatin1Char('h')); + break; + case 'z': + case 'Z': + case 'v': + result += QLatin1Char('t'); + break; + default: + result += QString(repeat, c); + break; + } + + i += repeat; + } + + return result; +} + +QString getMacDateFormat(CFDateFormatterStyle style) +{ + QCFType<CFLocaleRef> l = CFLocaleCopyCurrent(); + QCFType<CFDateFormatterRef> formatter = CFDateFormatterCreate(kCFAllocatorDefault, + l, style, kCFDateFormatterNoStyle); + return macToQtFormat(QCFString::toQString(CFDateFormatterGetFormat(formatter))); +} + +static QString getMacTimeFormat(CFDateFormatterStyle style) +{ + QCFType<CFLocaleRef> l = CFLocaleCopyCurrent(); + QCFType<CFDateFormatterRef> formatter = CFDateFormatterCreate(kCFAllocatorDefault, + l, kCFDateFormatterNoStyle, style); + return macToQtFormat(QCFString::toQString(CFDateFormatterGetFormat(formatter))); +} + +static QString getCFLocaleValue(CFStringRef key) +{ + QCFType<CFLocaleRef> locale = CFLocaleCopyCurrent(); + CFTypeRef value = CFLocaleGetValue(locale, key); + return QCFString::toQString(CFStringRef(static_cast<CFTypeRef>(value))); +} + +static QLocale::MeasurementSystem macMeasurementSystem() +{ + QCFType<CFLocaleRef> locale = CFLocaleCopyCurrent(); + CFStringRef system = static_cast<CFStringRef>(CFLocaleGetValue(locale, kCFLocaleMeasurementSystem)); + if (QCFString::toQString(system) == QLatin1String("Metric")) { + return QLocale::MetricSystem; + } else { + return QLocale::ImperialSystem; + } +} + +QLocale QSystemLocale::fallbackLocale() const +{ + return QLocale(QString::fromUtf8(getMacLocaleName().constData())); +} + +QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const +{ + switch(type) { +// case Name: +// return getMacLocaleName(); + case DecimalPoint: { + QString value = getCFLocaleValue(kCFLocaleDecimalSeparator); + return value.isEmpty() ? QVariant() : value; + } + case GroupSeparator: { + QString value = getCFLocaleValue(kCFLocaleGroupingSeparator); + return value.isEmpty() ? QVariant() : value; + } + case DateFormatLong: + case DateFormatShort: + return macToQtFormat(getMacDateFormat(type == DateFormatShort + ? kCFDateFormatterShortStyle + : kCFDateFormatterLongStyle)); + case TimeFormatLong: + case TimeFormatShort: + return macToQtFormat(getMacTimeFormat(type == TimeFormatShort + ? kCFDateFormatterShortStyle + : kCFDateFormatterLongStyle)); + case DayNameLong: + case DayNameShort: + return macDayName(in.toInt(), (type == DayNameShort)); + case MonthNameLong: + case MonthNameShort: + return macMonthName(in.toInt(), (type == MonthNameShort)); + case DateToStringShort: + case DateToStringLong: + return macDateToString(in.toDate(), (type == DateToStringShort)); + case TimeToStringShort: + case TimeToStringLong: + return macTimeToString(in.toTime(), (type == TimeToStringShort)); + + case NegativeSign: + case PositiveSign: + case ZeroDigit: + case LanguageId: + case CountryId: + break; + + case MeasurementSystem: + return QVariant(static_cast<int>(macMeasurementSystem())); + + case AMText: + case PMText: + break; + default: + break; + } + return QVariant(); +} +#elif defined(Q_OS_SYMBIAN) + +static TExtendedLocale _s60Locale; + +// Type definitions for runtime resolved function pointers +typedef void (*FormatFunc)(TTime&, TDes&, const TDesC&, const TLocale&); +typedef TPtrC (*FormatSpecFunc)(TExtendedLocale&); + +// Runtime resolved functions +static FormatFunc ptrTimeFormatL = NULL; +static FormatSpecFunc ptrGetTimeFormatSpec = NULL; +static FormatSpecFunc ptrGetLongDateFormatSpec = NULL; +static FormatSpecFunc ptrGetShortDateFormatSpec = NULL; + +// Default functions if functions cannot be resolved +static void defaultTimeFormatL(TTime&, TDes& des, const TDesC&, const TLocale&) +{ + des.Zero(); +} + +static TPtrC defaultFormatSpec(TExtendedLocale&) +{ + return TPtrC(KNullDesC); +} + +/*! + Definition of struct for mapping Symbian to ISO locale +*/ +struct symbianToISO { + int symbian_language; + char iso_name[8]; +}; + + +/*! + Mapping from Symbian to ISO locale +*/ +static const symbianToISO symbian_to_iso_list[] = { + { ELangEnglish, "en_GB" }, + { ELangFrench, "fr_FR" }, + { ELangGerman, "de_DE" }, + { ELangSpanish, "es_ES" }, + { ELangItalian, "it_IT" }, + { ELangSwedish, "sv_SE" }, + { ELangDanish, "da_DK" }, + { ELangNorwegian, "no_NO" }, + { ELangFinnish, "fi_FI" }, + { ELangAmerican, "en_US" }, + { ELangPortuguese, "pt_PT" }, + { ELangTurkish, "tr_TR" }, + { ELangIcelandic, "is_IS" }, + { ELangRussian, "ru_RU" }, + { ELangHungarian, "hu_HU" }, + { ELangDutch, "nl_NL" }, + { ELangBelgianFlemish, "nl_BE" }, + { ELangCzech, "cs_CZ" }, + { ELangSlovak, "sk_SK" }, + { ELangPolish, "pl_PL" }, + { ELangSlovenian, "sl_SI" }, + { ELangTaiwanChinese, "zh_TW" }, + { ELangHongKongChinese, "zh_HK" }, + { ELangPrcChinese, "zh_CN" }, + { ELangJapanese, "ja_JP" }, + { ELangThai, "th_TH" }, + { ELangArabic, "ar_AE" }, + { ELangTagalog, "tl_PH" }, + { ELangBulgarian, "bg_BG" }, + { ELangCatalan, "ca_ES" }, + { ELangCroatian, "hr_HR" }, + { ELangEstonian, "et_EE" }, + { ELangFarsi, "fa_IR" }, + { ELangCanadianFrench, "fr_CA" }, + { ELangGreek, "el_GR" }, + { ELangHebrew, "he_IL" }, + { ELangHindi, "hi_IN" }, + { ELangIndonesian, "id_ID" }, + { ELangLatvian, "lv_LV" }, + { ELangLithuanian, "lt_LT" }, + { ELangMalay, "ms_MY" }, + { ELangBrazilianPortuguese, "pt_BR" }, + { ELangRomanian, "ro_RO" }, + { ELangSerbian, "sr_YU" }, + { ELangLatinAmericanSpanish, "es" }, + { ELangUkrainian, "uk_UA" }, + { ELangUrdu, "ur_PK" }, // India/Pakistan + { ELangVietnamese, "vi_VN" }, +#ifdef __E32LANG_H__ +// 5.0 + { ELangBasque, "eu_ES" }, + { ELangGalician, "gl_ES" }, +#endif +#if !defined(__SERIES60_31__) + { ELangEnglish_Apac, "en" }, + { ELangEnglish_Taiwan, "en_TW" }, + { ELangEnglish_HongKong, "en_HK" }, + { ELangEnglish_Prc, "en_CN" }, + { ELangEnglish_Japan, "en_JP"}, + { ELangEnglish_Thailand, "en_TH" }, + { ELangMalay_Apac, "ms" } +#endif +}; + +/*! + Returns ISO name corresponding to the Symbian locale code \a sys_fmt. +*/ +static QByteArray symbianLocaleName(int code) +{ + //Number of Symbian to ISO locale mappings + static const int symbian_to_iso_count + = sizeof(symbian_to_iso_list)/sizeof(symbianToISO); + + int cmp = code - symbian_to_iso_list[0].symbian_language; + if (cmp < 0) + return 0; + + if (cmp == 0) + return symbian_to_iso_list[0].iso_name; + + int begin = 0; + int end = symbian_to_iso_count; + + while (end - begin > 1) { + uint mid = (begin + end)/2; + + const symbianToISO *elt = symbian_to_iso_list + mid; + int cmp = code - elt->symbian_language; + if (cmp < 0) + end = mid; + else if (cmp > 0) + begin = mid; + else + return elt->iso_name; + } + + return 0; +} + + +// order is: normal, abbr, nmode, nmode+abbr +static const char *us_locale_dep[] = { + "MM", "dd", "yyyy", "MM", "dd", + "M", "d", "yy", "M", "d", + "MMMM", "dd", "yyyy", "MMMM", "dd", + "MMM", "d", "yy", "MMM", "d" }; + +static const char *eu_locale_dep[] = { + "dd", "MM", "yyyy", "dd", "MM", + "d", "M", "yy", "d", "M", + "dd", "MMMM", "yyyy", "dd", "MMMM", + "d", "MMM", "yy", "d", "MMM" }; + +static const char *jp_locale_dep[] = { + "yyyy", "MM", "dd", "MM", "dd", + "yy", "M", "d", "M", "d", + "yyyy", "MMMM", "dd", "MMMM", "dd", + "yy", "MMM", "d", "MMM", "d" }; + +/*! + Returns a Qt version of the given \a sys_fmt Symbian locale format string. +*/ +static QString s60ToQtFormat(const QString &sys_fmt) +{ + TLocale *locale = _s60Locale.GetLocale(); + + QString result; + QString other; + QString qtformatchars = QString::fromLatin1("adhmsyzAHM"); + + QChar c; + int i = 0; + bool open_escape = false; + bool abbrev_next = false; + bool locale_indep_ordering = false; + bool minus_mode = false; + bool plus_mode = false; + bool n_mode = false; + TTimeFormat tf = locale->TimeFormat(); + + while (i < sys_fmt.size()) { + + c = sys_fmt.at(i); + + // let formatting thru + if (c.unicode() == '%') { + // if we have gathered string, concat it + if (!other.isEmpty()) { + result += other; + other.clear(); + } + // if we have open escape, end it + if (open_escape) { + result += QLatin1Char('\''); + open_escape = false; + } + + ++i; + if (i >= sys_fmt.size()) + break; + + c = sys_fmt.at(i); + + // process specials + abbrev_next = c.unicode() == '*'; + plus_mode = c.unicode() == '+'; + minus_mode = c.unicode() == '-'; + + if (abbrev_next || plus_mode || minus_mode) { + ++i; + if (i >= sys_fmt.size()) + break; + + c = sys_fmt.at(i); + + if (plus_mode || minus_mode) { + // break on undefined plus/minus mode + if (c.unicode() != 'A' && c.unicode() != 'B') + break; + } + } + + switch (c.unicode()) { + case 'F': + // locale indep mode on + locale_indep_ordering = true; + break; + + case '/': + // date sep 0-3 + ++i; + if (i >= sys_fmt.size()) + break; + + c = sys_fmt.at(i); + if (c.isDigit() && c.digitValue() <= 3) { + TChar s = locale->DateSeparator(c.digitValue()); + TUint val = s; + // some indexes return zero for empty + if (val > 0) + result += QChar(val); + } + break; + + case 'D': + if (!locale_indep_ordering) + break; + + if (!abbrev_next) + result += QLatin1String("dd"); + else + result += QLatin1Char('d'); + + break; + + case 'M': + if (!locale_indep_ordering) + break; + + if (!n_mode) { + if (!abbrev_next) + result += QLatin1String("MM"); + else + result += QLatin1String("M"); + } else { + if (!abbrev_next) + result += QLatin1String("MMMM"); + else + result += QLatin1String("MMM"); + } + + break; + + case 'N': + n_mode = true; + + if (!locale_indep_ordering) + break; + + if (!abbrev_next) + result += QLatin1String("MMMM"); + else + result += QLatin1String("MMM"); + + break; + + case 'Y': + if (!locale_indep_ordering) + break; + + if (!abbrev_next) + result += QLatin1String("yyyy"); + else + result += QLatin1String("yy"); + + break; + + case 'E': + if (!abbrev_next) + result += QLatin1String("dddd"); + else + result += QLatin1String("ddd"); + + break; + + case ':': + // timesep 0-3 + ++i; + if (i >= sys_fmt.size()) + break; + + c = sys_fmt.at(i); + if (c.isDigit() && c.digitValue() <= 3) { + TChar s = locale->TimeSeparator(c.digitValue()); + TUint val = s; + // some indexes return zero for empty + if (val > 0) + result += QChar(val); + } + + break; + + case 'J': + if (tf == ETime24 && !abbrev_next) + result += QLatin1String("hh"); + else + result += QLatin1Char('h'); + + break; + + case 'H': + if (!abbrev_next) + result += QLatin1String("hh"); + else + result += QLatin1Char('h'); + + break; + + case 'I': + result += QLatin1Char('h'); + break; + + case 'T': + if (!abbrev_next) + result += QLatin1String("mm"); + else + result += QLatin1Char('m'); + + break; + + case 'S': + if (!abbrev_next) + result += QLatin1String("ss"); + else + result += QLatin1Char('s'); + + break; + + case 'B': + // only done for 12h clock + if (tf == ETime24) + break; + + // fallthru to A + case 'A': { + // quickie to get capitalization, can't use s60 string as is because Qt 'hh' format's am/pm logic + TAmPmName ampm = TAmPmName(); + TChar first(ampm[0]); + QString qtampm = QString::fromLatin1(first.IsUpper() ? "AP" : "ap"); + + int pos = locale->AmPmSymbolPosition(); + + if ((minus_mode && pos != ELocaleBefore) || + (plus_mode && pos != ELocaleAfter)) + break; + + if (!abbrev_next && locale->AmPmSpaceBetween()) { + if (pos == ELocaleBefore) + qtampm.append(QLatin1Char(' ')); + else + qtampm.prepend(QLatin1Char(' ')); + } + + result += qtampm; + } + break; + + case '.': { + // decimal sep + TChar s = locale->DecimalSeparator(); + TUint val = s; + if (val > 0) + result += QChar(val); + } + break; + + case 'C': + // six digits in s60, three digits in qt + if (!abbrev_next) { + result += QLatin1String("zzz"); + } else { + // next char is number from 0-6, how many digits to display + ++i; + if (i >= sys_fmt.size()) + break; + + c = sys_fmt.at(i); + + if (c.isDigit()) { + // try to match wanted digits + QChar val(c.digitValue()); + + if (val >= 3) { + result += QLatin1String("zzz"); + } else if (val > 0) { + result += QLatin1Char('z'); + } + } + } + break; + + // these cases fallthru + case '1': + case '2': + case '3': + case '4': + case '5': + + // shouldn't parse these with %F + if (locale_indep_ordering) + break; + + TDateFormat df = locale->DateFormat(); + + const char **locale_dep; + switch (df) { + default: // fallthru to american + case EDateAmerican: + locale_dep = us_locale_dep; + break; + case EDateEuropean: + locale_dep = eu_locale_dep; + break; + case EDateJapanese: + locale_dep = jp_locale_dep; + break; + } + int offset = 0; + if (abbrev_next) + offset += 5; + if (n_mode) + offset += 10; + + result += QLatin1String(locale_dep[offset + (c.digitValue()-1)]); + break; + + case '%': // fallthru percent + // any junk gets copied as is + default: + result += c; + break; + + case 'Z': // Qt doesn't support these :( + case 'X': + case 'W': + break; + } + } else { + // double any single quotes, don't begin escape + if (c.unicode() == '\'') { + // end open escape + if (open_escape) { + result += other; + other.clear(); + result += QLatin1Char('\''); + open_escape = false; + } + + other += c; + } + + // gather chars and escape them in one go if any format chars are found + if (!open_escape && qtformatchars.indexOf(c) != -1) { + result += QLatin1Char('\''); + open_escape = true; + } + other += c; + } + + ++i; + } + + if (!other.isEmpty()) + result += other; + if (open_escape) + result += QLatin1Char('\''); + + return result; +} + +/*! + Retrieves Symbian locale decimal separator. +*/ +static QString symbianDecimalPoint() +{ + TLocale *locale = _s60Locale.GetLocale(); + + TChar decPoint = locale->DecimalSeparator(); + int val = decPoint; + return QChar(val); +} + +/*! + Retrieves Symbian locale group separator. +*/ +static QString symbianGroupSeparator() +{ + TLocale *locale = _s60Locale.GetLocale(); + + TChar grpSep = locale->ThousandsSeparator(); + int val = grpSep; + return QChar(val); +} + +/*! + Retrieves Symbian locale zero digit. +*/ +static QString symbianZeroDigit() +{ + TLocale *locale = _s60Locale.GetLocale(); + + // TDigitType enumeration value returned by TLocale + // will always correspond to zero digit unicode value. + TDigitType digit = locale->DigitType(); + return QChar(digit); +} + +/*! + Retrieves a day name from Symbian locale. The \a day is an integer + from 1 to 7. When \a short_format is true the method returns + the day in short format. Otherwise it returns the day in a long format. +*/ +static QString symbianDayName(int day, bool short_format) +{ + day -= 1; + + if (day < 0 || day > 6) + return QString(); + + if (short_format) { + return qt_TDes2QStringL(TDayNameAbb(TDay(day))); + } else { + return qt_TDes2QStringL(TDayName(TDay(day))); + } +} + +/*! + Retrieves a month name from Symbian locale. The \a month is an integer + from 1 to 12. When \a short_format is true the method returns + the month in short format. Otherwise it returns the month in a long format. +*/ +static QString symbianMonthName(int month, bool short_format) +{ + month -= 1; + if (month < 0 || month > 11) + return QString(); + + if (short_format) { + return qt_TDes2QStringL(TMonthNameAbb(TMonth(month))); + } else { + return qt_TDes2QStringL(TMonthName(TMonth(month))); + } +} + +/*! + Retrieves date format from Symbian locale and + transforms it to Qt format. + + When \a short_format is true the method returns + short date format. Otherwise it returns the long format. +*/ +static QString symbianDateFormat(bool short_format) +{ + TPtrC dateFormat; + + if (short_format) { + dateFormat.Set(ptrGetShortDateFormatSpec(_s60Locale)); + } else { + dateFormat.Set(ptrGetLongDateFormatSpec(_s60Locale)); + } + + return s60ToQtFormat(qt_TDesC2QStringL(dateFormat)); +} + +/*! + Retrieves time format from Symbian locale and + transforms it to Qt format. +*/ +static QString symbianTimeFormat() +{ + return s60ToQtFormat(qt_TDesC2QStringL(ptrGetTimeFormatSpec(_s60Locale))); +} + +/*! + Returns localized string representation of given \a date + formatted with Symbian locale date format. + + If \a short_format is true the format will be a short version. + Otherwise it uses a longer version. +*/ +static QString symbianDateToString(const QDate &date, bool short_format) +{ + int month = date.month() - 1; + int day = date.day() - 1; + int year = date.year(); + + TDateTime dateTime; + dateTime.Set(year, TMonth(month), day, 0, 0, 0, 0); + + TTime timeStr(dateTime); + TBuf<KMaxLongDateFormatSpec*2> buffer; + + TPtrC dateFormat; + if (short_format) { + dateFormat.Set(ptrGetShortDateFormatSpec(_s60Locale)); + } else { + dateFormat.Set(ptrGetLongDateFormatSpec(_s60Locale)); + } + + TRAPD(err, ptrTimeFormatL(timeStr, buffer, dateFormat, *_s60Locale.GetLocale());) + + if (err == KErrNone) + return qt_TDes2QStringL(buffer); + else + return QString(); +} + +/*! + Returns localized string representation of given \a time + formatted with Symbian locale time format. +*/ +static QString symbianTimeToString(const QTime &time) +{ + int hour = time.hour(); + int minute = time.minute(); + int second = time.second(); + int milliseconds = 0; + + TDateTime dateTime; + dateTime.Set(0, TMonth(0), 0, hour, minute, second, milliseconds); + + TTime timeStr(dateTime); + TBuf<KMaxTimeFormatSpec*2> buffer; + + TRAPD(err, ptrTimeFormatL( + timeStr, + buffer, + ptrGetTimeFormatSpec(_s60Locale), + *_s60Locale.GetLocale()); + ) + + if (err == KErrNone) + return qt_TDes2QStringL(buffer); + else + return QString(); +} + +/*! + Returns the measurement system stored in Symbian locale + + \sa QLocale::MeasurementSystem +*/ +static QLocale::MeasurementSystem symbianMeasurementSystem() +{ + TLocale *locale = _s60Locale.GetLocale(); + + TUnitsFormat unitFormat = locale->UnitsGeneral(); + if (unitFormat == EUnitsImperial) + return QLocale::ImperialSystem; + else + return QLocale::MetricSystem; +} + +QLocale QSystemLocale::fallbackLocale() const +{ + // load system data before query calls + static bool initDone = false; + if (!initDone) { + _s60Locale.LoadSystemSettings(); + + // Initialize platform version dependent function pointers + ptrTimeFormatL = reinterpret_cast<FormatFunc> + (qt_resolveS60PluginFunc(S60Plugin_TimeFormatL)); + ptrGetTimeFormatSpec = reinterpret_cast<FormatSpecFunc> + (qt_resolveS60PluginFunc(S60Plugin_GetTimeFormatSpec)); + ptrGetLongDateFormatSpec = reinterpret_cast<FormatSpecFunc> + (qt_resolveS60PluginFunc(S60Plugin_GetLongDateFormatSpec)); + ptrGetShortDateFormatSpec = reinterpret_cast<FormatSpecFunc> + (qt_resolveS60PluginFunc(S60Plugin_GetShortDateFormatSpec)); + if (!ptrTimeFormatL) + ptrTimeFormatL = &defaultTimeFormatL; + if (!ptrGetTimeFormatSpec) + ptrGetTimeFormatSpec = &defaultFormatSpec; + if (!ptrGetLongDateFormatSpec) + ptrGetLongDateFormatSpec = &defaultFormatSpec; + if (!ptrGetShortDateFormatSpec) + ptrGetShortDateFormatSpec = &defaultFormatSpec; + } + + TLanguage lang = User::Language(); + QString locale = symbianLocaleName(lang); + return QLocale(locale); +} + +/*! + Generic query method for locale data. Provides indirection. + Denotes the \a type of the query + with \a in as input data depending on the query. + + \sa QSystemLocale::QueryType +*/ +QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const +{ + switch(type) { + case DecimalPoint: + return symbianDecimalPoint(); + case GroupSeparator: + return symbianGroupSeparator(); + + case ZeroDigit: + return symbianZeroDigit(); + + case DayNameLong: + case DayNameShort: + return symbianDayName(in.toInt(), (type == DayNameShort) ); + + case MonthNameLong: + case MonthNameShort: + return symbianMonthName(in.toInt(), (type == MonthNameShort) ); + + case DateFormatLong: + case DateFormatShort: + return symbianDateFormat( (type == DateFormatShort) ); + case TimeFormatLong: + case TimeFormatShort: + return symbianTimeFormat(); + case DateTimeFormatLong: + case DateTimeFormatShort: + return symbianDateFormat( (type == DateTimeFormatShort) ) + QLatin1Char(' ') + symbianTimeFormat(); + case DateToStringShort: + case DateToStringLong: + return symbianDateToString(in.toDate(), (type == DateToStringShort) ); + case TimeToStringShort: + case TimeToStringLong: + return symbianTimeToString(in.toTime()); + case DateTimeToStringShort: + case DateTimeToStringLong: { + const QDateTime dt = in.toDateTime(); + return symbianDateToString(dt.date(), (type == DateTimeToStringShort) ) + + QLatin1Char(' ') + symbianTimeToString(dt.time()); + } + case MeasurementSystem: + return static_cast<int>(symbianMeasurementSystem()); + case LanguageId: + case CountryId: { + TLanguage language = User::Language(); + QString locale = symbianLocaleName(language); + QLocale::Language lang; + QLocale::Country cntry; + getLangAndCountry(locale, lang, cntry); + if (type == LanguageId) + return lang; + // few iso codes have no country and will use this + if (cntry == QLocale::AnyCountry) + return fallbackLocale().country(); + + return cntry; + } + case NegativeSign: + case PositiveSign: + case AMText: + case PMText: + break; + default: + break; + } + return QVariant(); +} + +#elif defined(Q_OS_UNIX) + +static uint unixGetSystemMeasurementSystem() +{ + QString meas_locale = QString::fromLocal8Bit(qgetenv("LC_ALL")); + if (meas_locale.isEmpty()) { + meas_locale = QString::fromLocal8Bit(qgetenv("LC_MEASUREMENT")); + } + if (meas_locale.isEmpty()) { + meas_locale = QString::fromLocal8Bit(qgetenv("LANG")); + } + if (meas_locale.isEmpty()) { + meas_locale = QString::fromLocal8Bit("C"); + } + + if (meas_locale.compare(QString::fromLocal8Bit("Metric"), Qt::CaseInsensitive) == 0) + return 0; + if (meas_locale.compare(QString::fromLocal8Bit("Other"), Qt::CaseInsensitive) == 0) + return 0; + + const QLocalePrivate* locale = findLocale(meas_locale); + return locale->measurementSystem(); +} + +/*! + \internal +*/ +QLocale QSystemLocale::fallbackLocale() const +{ + return QLocale(QLatin1String(envVarLocale())); +} + +/*! + \internal +*/ +QVariant QSystemLocale::query(QueryType type, QVariant /* in */) const +{ + if (type == MeasurementSystem) { + return QVariant(unixGetSystemMeasurementSystem()); + } else { + return QVariant(); + } +} + +#else + +/*! + Returns a fallback locale, that will get used for everything that + is not explicitly overridden by the system locale. +*/ +QLocale QSystemLocale::fallbackLocale() const +{ + return QLocale(QLatin1String(envVarLocale())); +} + +/*! + Performs a query of the given \a type in the system locale for + customized values or conversion. If the method returns a null + QVariant, the conversion of the fallbackLocale() will be used. + + \a in is unused for some of the query types. + + \sa QSystemLocale::QueryType +*/ +QVariant QSystemLocale::query(QueryType /* type */, QVariant /* in */) const +{ + return QVariant(); +} + +#endif + +#ifndef QT_NO_SYSTEMLOCALE +static QSystemLocale *_systemLocale = 0; +Q_GLOBAL_STATIC_WITH_ARGS(QSystemLocale, QSystemLocale_globalSystemLocale, (true)) +static QLocalePrivate *system_lp = 0; +Q_GLOBAL_STATIC(QLocalePrivate, globalLocalePrivate) +#endif + +/****************************************************************************** +** Default system locale behavior +*/ + +/*! + \class QSystemLocale + \brief The QSystemLocale class can be used to finetune the system locale + of the user. + \since 4.2 + + \ingroup i18n + + \warning This class is only useful in very rare cases. Usually QLocale offers + all the functionality required for application development. + + QSystemLocale allows to override the values provided by the system + locale (QLocale::system()). + + \sa QLocale +*/ + +/*! + \enum QSystemLocale::QueryType + + Specifies the type of information queried by query(). For each value + the type of information to return from the query() method is listed. + + \value LanguageId a uint specifying the language. + \value CountryId a uint specifying the country. + \value DecimalPoint a QString specifying the decimal point. + \value GroupSeparator a QString specifying the group separator. + \value ZeroDigit a QString specifying the zero digit. + \value NegativeSign a QString specifying the minus sign. + \value PositiveSign a QString specifying the plus sign. + \value DateFormatLong a QString specifying the long date format + \value DateFormatShort a QString specifying the short date format + \value TimeFormatLong a QString specifying the long time format + \value TimeFormatShort a QString specifying the short time format + \value DayNameLong a QString specifying the name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Sunday) + \value DayNameShort a QString specifying the short name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Sunday) + \value MonthNameLong a QString specifying the name of a month. the in variant contains an integer between 1 and 12 + \value MonthNameShort a QString specifying the short name of a month. the in variant contains an integer between 1 and 12 + \value DateToStringLong converts the QDate stored in the in variant to a QString using the long date format + \value DateToStringShort converts the QDate stored in the in variant to a QString using the short date format + \value TimeToStringLong converts the QTime stored in the in variant to a QString using the long time format + \value TimeToStringShort converts the QTime stored in the in variant to a QString using the short time format + \value DateTimeFormatLong a QString specifying the long date time format + \value DateTimeFormatShort a QString specifying the short date time format + \value DateTimeToStringLong converts the QDateTime in the in variant to a QString using the long datetime format + \value DateTimeToStringShort converts the QDateTime in the in variant to a QString using the short datetime format + \value MeasurementSystem a QLocale::MeasurementSystem enum specifying the measurement system + \value AMText a string that represents the system AM designator associated with a 12-hour clock. + \value PMText a string that represents the system PM designator associated with a 12-hour clock. +*/ + +/*! + Constructs a QSystemLocale object. The constructor will automatically + install this object as the system locale and remove any earlier installed + system locales. +*/ +QSystemLocale::QSystemLocale() +{ + delete _systemLocale; + _systemLocale = this; + + if (system_lp) + system_lp->m_language_id = 0; +} + +/*! \internal */ +QSystemLocale::QSystemLocale(bool) +{ } + +/*! + Deletes the object. +*/ +QSystemLocale::~QSystemLocale() +{ + if (_systemLocale == this) { + _systemLocale = 0; + + if (system_lp) + system_lp->m_language_id = 0; + } +} + +static const QSystemLocale *systemLocale() +{ + if (_systemLocale) + return _systemLocale; + return QSystemLocale_globalSystemLocale(); +} + +void QLocalePrivate::updateSystemPrivate() +{ + const QSystemLocale *sys_locale = systemLocale(); + if (!system_lp) + system_lp = globalLocalePrivate(); + *system_lp = *sys_locale->fallbackLocale().d(); + + QVariant res = sys_locale->query(QSystemLocale::LanguageId, QVariant()); + if (!res.isNull()) + system_lp->m_language_id = res.toInt(); + res = sys_locale->query(QSystemLocale::CountryId, QVariant()); + if (!res.isNull()) + system_lp->m_country_id = res.toInt(); + + res = sys_locale->query(QSystemLocale::DecimalPoint, QVariant()); + if (!res.isNull()) + system_lp->m_decimal = res.toString().at(0).unicode(); + + res = sys_locale->query(QSystemLocale::GroupSeparator, QVariant()); + if (!res.isNull()) + system_lp->m_group = res.toString().at(0).unicode(); + + res = sys_locale->query(QSystemLocale::ZeroDigit, QVariant()); + if (!res.isNull()) + system_lp->m_zero = res.toString().at(0).unicode(); + + res = sys_locale->query(QSystemLocale::NegativeSign, QVariant()); + if (!res.isNull()) + system_lp->m_minus = res.toString().at(0).unicode(); + + res = sys_locale->query(QSystemLocale::PositiveSign, QVariant()); + if (!res.isNull()) + system_lp->m_plus = res.toString().at(0).unicode(); +} +#endif + +static const QLocalePrivate *systemPrivate() +{ +#ifndef QT_NO_SYSTEMLOCALE + // copy over the information from the fallback locale and modify + if (!system_lp || system_lp->m_language_id == 0) + QLocalePrivate::updateSystemPrivate(); + + return system_lp; +#else + return locale_data; +#endif +} + +static const QLocalePrivate *defaultPrivate() +{ + if (!default_lp) + default_lp = systemPrivate(); + return default_lp; +} + +static QString getLocaleListData(const ushort *data, int size, int index) +{ + static const ushort separator = ';'; + while (index && size > 0) { + while (*data != separator) + ++data, --size; + --index; + ++data; + --size; + } + const ushort *end = data; + while (size > 0 && *end != separator) + ++end, --size; + return QString::fromRawData(reinterpret_cast<const QChar*>(data), end-data); +} + +static inline QString getLocaleData(const ushort *data, int size) +{ + return QString::fromRawData(reinterpret_cast<const QChar*>(data), size); +} + + +#ifndef QT_NO_DATASTREAM +QDataStream &operator<<(QDataStream &ds, const QLocale &l) +{ + ds << l.name(); + return ds; +} + +QDataStream &operator>>(QDataStream &ds, QLocale &l) +{ + QString s; + ds >> s; + l = QLocale(s); + return ds; +} +#endif + + +/*! + \class QLocale + \brief The QLocale class converts between numbers and their + string representations in various languages. + + \reentrant + \ingroup i18n + \ingroup text + \ingroup shared + \mainclass + + QLocale is initialized with a language/country pair in its + constructor and offers number-to-string and string-to-number + conversion functions similar to those in QString. + + Example: + + \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 0 + + QLocale supports the concept of a default locale, which is + determined from the system's locale settings at application + startup. The default locale can be changed by calling the + static member setDefault(). Setting the default locale has the + following effects: + + \list + \i If a QLocale object is constructed with the default constructor, + it will use the default locale's settings. + \i QString::toInt(), QString::toDouble(), etc., interpret the + string according to the default locale. If this fails, it + falls back on the "C" locale. + \i QString::arg() uses the default locale to format a number when + its position specifier in the format string contains an 'L', + e.g. "%L1". + \endlist + + The following example illustrates how to use QLocale directly: + + \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 1 + + When a language/country pair is specified in the constructor, one + of three things can happen: + + \list + \i If the language/country pair is found in the database, it is used. + \i If the language is found but the country is not, or if the country + is \c AnyCountry, the language is used with the most + appropriate available country (for example, Germany for German), + \i If neither the language nor the country are found, QLocale + defaults to the default locale (see setDefault()). + \endlist + + The "C" locale is identical to \l{English}/\l{UnitedStates}. + + Use language() and country() to determine the actual language and + country values used. + + An alternative method for constructing a QLocale object is by + specifying the locale name. + + \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 2 + + This constructor converts the locale name to a language/country + pair; it does not use the system locale database. + + The double-to-string and string-to-double conversion functions are + covered by the following licenses: + + \legalese + Copyright (c) 1991 by AT&T. + + Permission to use, copy, modify, and distribute this software for any + purpose without fee is hereby granted, provided that this entire notice + is included in all copies of any software which is or includes a copy + or modification of this software and in all copies of the supporting + documentation for such software. + + THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED + WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY + REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY + OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. + + This product includes software developed by the University of + California, Berkeley and its contributors. + + QLocale's data is based on Common Locale Data Repository v1.6.1. + + \sa QString::arg(), QString::toInt(), QString::toDouble() +*/ + +/*! + \enum QLocale::Language + + This enumerated type is used to specify a language. + + \value C The "C" locale is English/UnitedStates. + \value Abkhazian + \value Afan + \value Afar + \value Afrikaans + \value Albanian + \value Amharic + \value Arabic + \value Armenian + \value Assamese + \value Aymara + \value Azerbaijani + \value Bashkir + \value Basque + \value Bengali + \value Bhutani + \value Bihari + \value Bislama + \value Bosnian + \value Breton + \value Bulgarian + \value Burmese + \value Byelorussian + \value Cambodian + \value Catalan + \value Chinese + \value Cornish + \value Corsican + \value Croatian + \value Czech + \value Danish + \value Divehi + \value Dutch + \value English + \value Esperanto + \value Estonian + \value Faroese + \value FijiLanguage + \value Finnish + \value French + \value Frisian + \value Gaelic + \value Galician + \value Georgian + \value German + \value Greek + \value Greenlandic + \value Guarani + \value Gujarati + \value Hausa + \value Hebrew + \value Hindi + \value Hungarian + \value Icelandic + \value Indonesian + \value Interlingua + \value Interlingue + \value Inuktitut + \value Inupiak + \value Irish + \value Italian + \value Japanese + \value Javanese + \value Kannada + \value Kashmiri + \value Kazakh + \value Kinyarwanda + \value Kirghiz + \value Korean + \value Kurdish + \value Kurundi + \value Laothian + \value Latin + \value Latvian + \value Lingala + \value Lithuanian + \value Macedonian + \value Malagasy + \value Malay + \value Malayalam + \value Maltese + \value Manx + \value Maori + \value Marathi + \value Moldavian + \value Mongolian + \value NauruLanguage + \value Nepali + \value Norwegian + \value NorwegianBokmal + \value Nynorsk Obsolete, please use NorwegianNynorsk + \value NorwegianNynorsk + \value Occitan + \value Oriya + \value Pashto + \value Persian + \value Polish + \value Portuguese + \value Punjabi + \value Quechua + \value RhaetoRomance + \value Romanian + \value Russian + \value Samoan + \value Sangho + \value Sanskrit + \value Serbian + \value SerboCroatian + \value Sesotho + \value Setswana + \value Shona + \value Sindhi + \value Singhalese + \value Siswati + \value Slovak + \value Slovenian + \value Somali + \value Spanish + \value Sundanese + \value Swahili + \value Swedish + \value Tagalog + \value Tajik + \value Tamil + \value Tatar + \value Telugu + \value Thai + \value Tibetan + \value Tigrinya + \value TongaLanguage + \value Tsonga + \value Turkish + \value Turkmen + \value Twi + \value Uigur + \value Ukrainian + \value Urdu + \value Uzbek + \value Vietnamese + \value Volapuk + \value Welsh + \value Wolof + \value Xhosa + \value Yiddish + \value Yoruba + \value Zhuang + \value Zulu + \value Bosnian + \value Divehi + \value Manx + \value Cornish + \value Akan + \value Konkani + \value Ga + \value Igbo + \value Kamba + \value Syriac + \value Blin + \value Geez + \value Koro + \value Sidamo + \value Atsam + \value Tigre + \value Jju + \value Friulian + \value Venda + \value Ewe + \value Walamo + \value Hawaiian + \value Tyap + \value Chewa + \omitvalue LastLanguage + + \sa language() +*/ + +/*! + \enum QLocale::Country + + This enumerated type is used to specify a country. + + \value AnyCountry + \value Afghanistan + \value Albania + \value Algeria + \value AmericanSamoa + \value Andorra + \value Angola + \value Anguilla + \value Antarctica + \value AntiguaAndBarbuda + \value Argentina + \value Armenia + \value Aruba + \value Australia + \value Austria + \value Azerbaijan + \value Bahamas + \value Bahrain + \value Bangladesh + \value Barbados + \value Belarus + \value Belgium + \value Belize + \value Benin + \value Bermuda + \value Bhutan + \value Bolivia + \value BosniaAndHerzegowina + \value Botswana + \value BouvetIsland + \value Brazil + \value BritishIndianOceanTerritory + \value BruneiDarussalam + \value Bulgaria + \value BurkinaFaso + \value Burundi + \value Cambodia + \value Cameroon + \value Canada + \value CapeVerde + \value CaymanIslands + \value CentralAfricanRepublic + \value Chad + \value Chile + \value China + \value ChristmasIsland + \value CocosIslands + \value Colombia + \value Comoros + \value DemocraticRepublicOfCongo + \value PeoplesRepublicOfCongo + \value CookIslands + \value CostaRica + \value IvoryCoast + \value Croatia + \value Cuba + \value Cyprus + \value CzechRepublic + \value Denmark + \value Djibouti + \value Dominica + \value DominicanRepublic + \value EastTimor + \value Ecuador + \value Egypt + \value ElSalvador + \value EquatorialGuinea + \value Eritrea + \value Estonia + \value Ethiopia + \value FalklandIslands + \value FaroeIslands + \value FijiCountry + \value Finland + \value France + \value MetropolitanFrance + \value FrenchGuiana + \value FrenchPolynesia + \value FrenchSouthernTerritories + \value Gabon + \value Gambia + \value Georgia + \value Germany + \value Ghana + \value Gibraltar + \value Greece + \value Greenland + \value Grenada + \value Guadeloupe + \value Guam + \value Guatemala + \value Guinea + \value GuineaBissau + \value Guyana + \value Haiti + \value HeardAndMcDonaldIslands + \value Honduras + \value HongKong + \value Hungary + \value Iceland + \value India + \value Indonesia + \value Iran + \value Iraq + \value Ireland + \value Israel + \value Italy + \value Jamaica + \value Japan + \value Jordan + \value Kazakhstan + \value Kenya + \value Kiribati + \value DemocraticRepublicOfKorea + \value RepublicOfKorea + \value Kuwait + \value Kyrgyzstan + \value Lao + \value Latvia + \value Lebanon + \value Lesotho + \value Liberia + \value LibyanArabJamahiriya + \value Liechtenstein + \value Lithuania + \value Luxembourg + \value Macau + \value Macedonia + \value Madagascar + \value Malawi + \value Malaysia + \value Maldives + \value Mali + \value Malta + \value MarshallIslands + \value Martinique + \value Mauritania + \value Mauritius + \value Mayotte + \value Mexico + \value Micronesia + \value Moldova + \value Monaco + \value Mongolia + \value Montserrat + \value Morocco + \value Mozambique + \value Myanmar + \value Namibia + \value NauruCountry + \value Nepal + \value Netherlands + \value NetherlandsAntilles + \value NewCaledonia + \value NewZealand + \value Nicaragua + \value Niger + \value Nigeria + \value Niue + \value NorfolkIsland + \value NorthernMarianaIslands + \value Norway + \value Oman + \value Pakistan + \value Palau + \value PalestinianTerritory + \value Panama + \value PapuaNewGuinea + \value Paraguay + \value Peru + \value Philippines + \value Pitcairn + \value Poland + \value Portugal + \value PuertoRico + \value Qatar + \value Reunion + \value Romania + \value RussianFederation + \value Rwanda + \value SaintKittsAndNevis + \value StLucia + \value StVincentAndTheGrenadines + \value Samoa + \value SanMarino + \value SaoTomeAndPrincipe + \value SaudiArabia + \value Senegal + \value SerbiaAndMontenegro + \value Seychelles + \value SierraLeone + \value Singapore + \value Slovakia + \value Slovenia + \value SolomonIslands + \value Somalia + \value SouthAfrica + \value SouthGeorgiaAndTheSouthSandwichIslands + \value Spain + \value SriLanka + \value StHelena + \value StPierreAndMiquelon + \value Sudan + \value Suriname + \value SvalbardAndJanMayenIslands + \value Swaziland + \value Sweden + \value Switzerland + \value SyrianArabRepublic + \value Taiwan + \value Tajikistan + \value Tanzania + \value Thailand + \value Togo + \value Tokelau + \value TongaCountry + \value TrinidadAndTobago + \value Tunisia + \value Turkey + \value Turkmenistan + \value TurksAndCaicosIslands + \value Tuvalu + \value Uganda + \value Ukraine + \value UnitedArabEmirates + \value UnitedKingdom + \value UnitedStates + \value UnitedStatesMinorOutlyingIslands + \value Uruguay + \value Uzbekistan + \value Vanuatu + \value VaticanCityState + \value Venezuela + \value VietNam + \value BritishVirginIslands + \value USVirginIslands + \value WallisAndFutunaIslands + \value WesternSahara + \value Yemen + \value Yugoslavia + \value Zambia + \value Zimbabwe + \omitvalue LastCountry + + \sa country() +*/ + +/*! + \enum QLocale::FormatType + + This enum describes the types of format that can be used when + converting QDate and QTime objects to strings. + + \value LongFormat The long version of day and month names; for + example, returning "January" as a month name. + + \value ShortFormat The short version of day and month names; for + example, returning "Jan" as a month name. + + \value NarrowFormat A special version of day and month names for + use when space is limited; for example, returning "J" as a month + name. Note that the narrow format might contain the same text for + different months and days or it can even be an empty string if the + locale doesn't support narrow names, so you should avoid using it + for date formatting. Also, for the system locale this format is + the same as ShortFormat. +*/ + +/*! + \enum QLocale::NumberOption + + This enum defines a set of options for number-to-string and string-to-number + conversions. They can be retrieved with numberOptions() and set with + setNumberOptions(). + + \value OmitGroupSeparator If this option is set, the number-to-string functions + will not insert group separators in their return values. The default + is to insert group separators. + \value RejectGroupSeparator If this option is set, the string-to-number functions + will fail if they encounter group separators in their input. The default + is to accept numbers containing correctly placed group separators. + + \sa setNumberOptions() numberOptions() +*/ + +/*! + \enum QLocale::MeasurementSystem + + This enum defines which units are used for measurement. + + \value MetricSystem This value indicates metric units, such as meters, + centimeters and millimeters. + \value ImperialSystem This value indicates imperial units, such as inches and + miles. There are several distinct imperial systems in the world; this + value stands for the official United States imperial units. + + \since 4.4 +*/ + + +/*! + \fn bool QLocale::operator==(const QLocale &other) const + + Returns true if the QLocale object is the same as the \a other + locale specified; otherwise returns false. +*/ + +/*! + \fn bool QLocale::operator!=(const QLocale &other) const + + Returns true if the QLocale object is not the same as the \a other + locale specified; otherwise returns false. +*/ + +static const int locale_data_size = sizeof(locale_data)/sizeof(QLocalePrivate) - 1; + +static const QLocalePrivate *dataPointerHelper(quint16 index) +{ +#ifndef QT_NO_SYSTEMLOCALE + Q_ASSERT(index <= locale_data_size); + if (index == locale_data_size) + return system_lp; +#else + Q_ASSERT(index < locale_data_size); +#endif + + return &locale_data[index]; +} + +static quint16 localePrivateIndex(const QLocalePrivate *p) +{ +#ifndef QT_NO_SYSTEMLOCALE + Q_ASSERT((p >= locale_data && p - locale_data < locale_data_size) + || (p != 0 && p == system_lp)); + quint16 index = p == system_lp ? locale_data_size : p - locale_data; +#else + Q_ASSERT(p >= locale_data && p - locale_data < locale_data_size); + quint16 index = p - locale_data; +#endif + + return index; +} + +/*! + Constructs a QLocale object with the specified \a name, + which has the format + "language[_country][.codeset][@modifier]" or "C", where: + + \list + \i language is a lowercase, two-letter, ISO 639 language code, + \i territory is an uppercase, two-letter, ISO 3166 country code, + \i and codeset and modifier are ignored. + \endlist + + If the string violates the locale format, or language is not + a valid ISO 369 code, the "C" locale is used instead. If country + is not present, or is not a valid ISO 3166 code, the most + appropriate country is chosen for the specified language. + + The language and country codes are converted to their respective + \c Language and \c Country enums. After this conversion is + performed the constructor behaves exactly like QLocale(Country, + Language). + + This constructor is much slower than QLocale(Country, Language). + + \sa name() +*/ + +QLocale::QLocale(const QString &name) + : v(0) +{ + p.numberOptions = 0; + p.index = localePrivateIndex(findLocale(name)); +} + +/*! + Constructs a QLocale object initialized with the default locale. If + no default locale was set using setDefaultLocale(), this locale will + be the same as the one returned by system(). + + \sa setDefault() +*/ + +QLocale::QLocale() + : v(0) +{ + p.numberOptions = default_number_options; + p.index = localePrivateIndex(defaultPrivate()); +} + +/*! + Constructs a QLocale object with the specified \a language and \a + country. + + \list + \i If the language/country pair is found in the database, it is used. + \i If the language is found but the country is not, or if the country + is \c AnyCountry, the language is used with the most + appropriate available country (for example, Germany for German), + \i If neither the language nor the country are found, QLocale + defaults to the default locale (see setDefault()). + \endlist + + The language and country that are actually used can be queried + using language() and country(). + + \sa setDefault() language() country() +*/ + +QLocale::QLocale(Language language, Country country) + : v(0) +{ + const QLocalePrivate *d = findLocale(language, country); + + // If not found, should default to system + if (d->languageId() == QLocale::C && language != QLocale::C) { + p.numberOptions = default_number_options; + p.index = localePrivateIndex(defaultPrivate()); + } else { + p.numberOptions = 0; + p.index = localePrivateIndex(d); + } +} + +/*! + Constructs a QLocale object as a copy of \a other. +*/ + +QLocale::QLocale(const QLocale &other) +{ + v = other.v; +} + +const QLocalePrivate *QLocale::d() const +{ + return dataPointerHelper(p.index); +} + +/*! + Assigns \a other to this QLocale object and returns a reference + to this QLocale object. +*/ + +QLocale &QLocale::operator=(const QLocale &other) +{ + v = other.v; + return *this; +} + +/*! + \since 4.2 + + Sets the \a options related to number conversions for this + QLocale instance. +*/ +void QLocale::setNumberOptions(NumberOptions options) +{ + p.numberOptions = options; +} + +/*! + \since 4.2 + + Returns the options related to number conversions for this + QLocale instance. + + By default, no options are set for the standard locales. +*/ +QLocale::NumberOptions QLocale::numberOptions() const +{ + return static_cast<NumberOption>(p.numberOptions); +} + +/*! + \nonreentrant + + Sets the global default locale to \a locale. These + values are used when a QLocale object is constructed with + no arguments. If this function is not called, the system's + locale is used. + + \warning In a multithreaded application, the default locale + should be set at application startup, before any non-GUI threads + are created. + + \sa system() c() +*/ + +void QLocale::setDefault(const QLocale &locale) +{ + default_lp = locale.d(); + default_number_options = locale.numberOptions(); +} + +/*! + Returns the language of this locale. + + \sa country(), languageToString(), name() +*/ +QLocale::Language QLocale::language() const +{ + return Language(d()->languageId()); +} + +/*! + Returns the country of this locale. + + \sa language(), countryToString(), name() +*/ +QLocale::Country QLocale::country() const +{ + return Country(d()->countryId()); +} + +/*! + Returns the language and country of this locale as a + string of the form "language_country", where + language is a lowercase, two-letter ISO 639 language code, + and country is an uppercase, two-letter ISO 3166 country code. + + \sa language(), country() +*/ + +QString QLocale::name() const +{ + Language l = language(); + + QString result = languageToCode(l); + + if (l == C) + return result; + + Country c = country(); + if (c == AnyCountry) + return result; + + result.append(QLatin1Char('_')); + result.append(countryToCode(c)); + + return result; +} + +/*! + Returns a QString containing the name of \a language. + + \sa countryToString(), name() +*/ + +QString QLocale::languageToString(Language language) +{ + if (uint(language) > uint(QLocale::LastLanguage)) + return QLatin1String("Unknown"); + return QLatin1String(language_name_list + language_name_index[language]); +} + +/*! + Returns a QString containing the name of \a country. + + \sa country(), name() +*/ + +QString QLocale::countryToString(Country country) +{ + if (uint(country) > uint(QLocale::LastCountry)) + return QLatin1String("Unknown"); + return QLatin1String(country_name_list + country_name_index[country]); +} + +/*! + Returns the short int represented by the localized string \a s, + using base \a base. If \a base is 0 the base is determined + automatically using the following rules: If the string begins with + "0x", it is assumed to be hexadecimal; if it begins with "0", it + is assumed to be octal; otherwise it is assumed to be decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toUShort(), toString() +*/ + +short QLocale::toShort(const QString &s, bool *ok, int base) const +{ + qlonglong i = toLongLong(s, ok, base); + if (i < SHRT_MIN || i > SHRT_MAX) { + if (ok != 0) + *ok = false; + return 0; + } + return short(i); +} + +/*! + Returns the unsigned short int represented by the localized string + \a s, using base \a base. If \a base is 0 the base is determined + automatically using the following rules: If the string begins with + "0x", it is assumed to be hexadecimal; if it begins with "0", it + is assumed to be octal; otherwise it is assumed to be decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toShort(), toString() +*/ + +ushort QLocale::toUShort(const QString &s, bool *ok, int base) const +{ + qulonglong i = toULongLong(s, ok, base); + if (i > USHRT_MAX) { + if (ok != 0) + *ok = false; + return 0; + } + return ushort(i); +} + +/*! + Returns the int represented by the localized string \a s, using + base \a base. If \a base is 0 the base is determined automatically + using the following rules: If the string begins with "0x", it is + assumed to be hexadecimal; if it begins with "0", it is assumed to + be octal; otherwise it is assumed to be decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toUInt(), toString() +*/ + +int QLocale::toInt(const QString &s, bool *ok, int base) const +{ + qlonglong i = toLongLong(s, ok, base); + if (i < INT_MIN || i > INT_MAX) { + if (ok != 0) + *ok = false; + return 0; + } + return int(i); +} + +/*! + Returns the unsigned int represented by the localized string \a s, + using base \a base. If \a base is 0 the base is determined + automatically using the following rules: If the string begins with + "0x", it is assumed to be hexadecimal; if it begins with "0", it + is assumed to be octal; otherwise it is assumed to be decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toInt(), toString() +*/ + +uint QLocale::toUInt(const QString &s, bool *ok, int base) const +{ + qulonglong i = toULongLong(s, ok, base); + if (i > UINT_MAX) { + if (ok != 0) + *ok = false; + return 0; + } + return uint(i); +} + +/*! + Returns the long long int represented by the localized string \a + s, using base \a base. If \a base is 0 the base is determined + automatically using the following rules: If the string begins with + "0x", it is assumed to be hexadecimal; if it begins with "0", it + is assumed to be octal; otherwise it is assumed to be decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toInt(), toULongLong(), toDouble(), toString() +*/ + + +qlonglong QLocale::toLongLong(const QString &s, bool *ok, int base) const +{ + QLocalePrivate::GroupSeparatorMode mode + = p.numberOptions & RejectGroupSeparator + ? QLocalePrivate::FailOnGroupSeparators + : QLocalePrivate::ParseGroupSeparators; + + return d()->stringToLongLong(s, base, ok, mode); +} + +// ### Qt5: make the return type for toULongLong() qulonglong. + +/*! + Returns the unsigned long long int represented by the localized + string \a s, using base \a base. If \a base is 0 the base is + determined automatically using the following rules: If the string + begins with "0x", it is assumed to be hexadecimal; if it begins + with "0", it is assumed to be octal; otherwise it is assumed to be + decimal. + + If the conversion fails the function returns 0. + + If \a ok is not 0, failure is reported by setting *ok to false, and + success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toLongLong(), toInt(), toDouble(), toString() +*/ + +qlonglong QLocale::toULongLong(const QString &s, bool *ok, int base) const +{ + QLocalePrivate::GroupSeparatorMode mode + = p.numberOptions & RejectGroupSeparator + ? QLocalePrivate::FailOnGroupSeparators + : QLocalePrivate::ParseGroupSeparators; + + return d()->stringToUnsLongLong(s, base, ok, mode); +} + +/*! + Returns the float represented by the localized string \a s, or 0.0 + if the conversion failed. + + If \a ok is not 0, reports failure by setting + *ok to false and success by setting *ok to true. + + This function ignores leading and trailing whitespace. + + \sa toDouble(), toInt(), toString() +*/ + +#define QT_MAX_FLOAT 3.4028234663852886e+38 + +float QLocale::toFloat(const QString &s, bool *ok) const +{ + bool myOk; + double d = toDouble(s, &myOk); + if (!myOk || d > QT_MAX_FLOAT || d < -QT_MAX_FLOAT) { + if (ok != 0) + *ok = false; + return 0.0; + } + if (ok != 0) + *ok = true; + return float(d); +} + +/*! + Returns the double represented by the localized string \a s, or + 0.0 if the conversion failed. + + If \a ok is not 0, reports failure by setting + *ok to false and success by setting *ok to true. + + Unlike QString::toDouble(), this function does not fall back to + the "C" locale if the string cannot be interpreted in this + locale. + + \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 3 + + Notice that the last conversion returns 1234.0, because '.' is the + thousands group separator in the German locale. + + This function ignores leading and trailing whitespace. + + \sa toFloat(), toInt(), toString() +*/ + +double QLocale::toDouble(const QString &s, bool *ok) const +{ + QLocalePrivate::GroupSeparatorMode mode + = p.numberOptions & RejectGroupSeparator + ? QLocalePrivate::FailOnGroupSeparators + : QLocalePrivate::ParseGroupSeparators; + + return d()->stringToDouble(s, ok, mode); +} + +/*! + Returns a localized string representation of \a i. + + \sa toLongLong() +*/ + +QString QLocale::toString(qlonglong i) const +{ + int flags = p.numberOptions & OmitGroupSeparator + ? 0 + : QLocalePrivate::ThousandsGroup; + + return d()->longLongToString(i, -1, 10, -1, flags); +} + +/*! + \overload + + \sa toULongLong() +*/ + +QString QLocale::toString(qulonglong i) const +{ + int flags = p.numberOptions & OmitGroupSeparator + ? 0 + : QLocalePrivate::ThousandsGroup; + + return d()->unsLongLongToString(i, -1, 10, -1, flags); +} + +/*! + Returns a localized string representation of the given \a date in the + specified \a format. + If \a format is an empty string, an empty string is returned. +*/ + +QString QLocale::toString(const QDate &date, const QString &format) const +{ + return d()->dateTimeToString(format, &date, 0, this); +} + +/*! + Returns a localized string representation of the given \a date according + to the specified \a format. +*/ + +QString QLocale::toString(const QDate &date, FormatType format) const +{ + if (!date.isValid()) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::DateToStringLong : QSystemLocale::DateToStringShort, + date); + if (!res.isNull()) + return res.toString(); + } +#endif + + QString format_str = dateFormat(format); + return toString(date, format_str); +} + +static bool timeFormatContainsAP(const QString &format) +{ + int i = 0; + while (i < format.size()) { + if (format.at(i).unicode() == '\'') { + readEscapedFormatString(format, &i); + continue; + } + + if (format.at(i).toLower().unicode() == 'a') + return true; + + ++i; + } + return false; +} + +static QString timeZone() +{ +#if defined(Q_OS_WINCE) + TIME_ZONE_INFORMATION info; + DWORD res = GetTimeZoneInformation(&info); + if (res == TIME_ZONE_ID_UNKNOWN) + return QString(); + return QString::fromUtf16(reinterpret_cast<const ushort *> (info.StandardName)); +#elif defined(Q_OS_WIN) + _tzset(); +# if defined(_MSC_VER) && _MSC_VER >= 1400 + size_t returnSize = 0; + char timeZoneName[512]; + if (_get_tzname(&returnSize, timeZoneName, 512, 1)) + return QString(); + return QString::fromLocal8Bit(timeZoneName); +# else + return QString::fromLocal8Bit(_tzname[1]); +# endif +#else + tzset(); + return QString::fromLocal8Bit(tzname[1]); +#endif +} + +/*! + Returns a localized string representation of the given \a time according + to the specified \a format. + If \a format is an empty string, an empty string is returned. +*/ +QString QLocale::toString(const QTime &time, const QString &format) const +{ + return d()->dateTimeToString(format, 0, &time, this); +} + +/*! + \since 4.4 + + Returns a localized string representation of the given \a dateTime according + to the specified \a format. + If \a format is an empty string, an empty string is returned. +*/ + +QString QLocale::toString(const QDateTime &dateTime, const QString &format) const +{ + const QDate dt = dateTime.date(); + const QTime tm = dateTime.time(); + return d()->dateTimeToString(format, &dt, &tm, this); +} + +/*! + \since 4.4 + + Returns a localized string representation of the given \a dateTime according + to the specified \a format. +*/ + +QString QLocale::toString(const QDateTime &dateTime, FormatType format) const +{ + if (!dateTime.isValid()) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::DateTimeToStringLong + : QSystemLocale::DateTimeToStringShort, + dateTime); + if (!res.isNull()) + return res.toString(); + } +#endif + + const QString format_str = dateTimeFormat(format); + return toString(dateTime, format_str); +} + + +/*! + Returns a localized string representation of the given \a time in the + specified \a format. +*/ + +QString QLocale::toString(const QTime &time, FormatType format) const +{ + if (!time.isValid()) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::TimeToStringLong : QSystemLocale::TimeToStringShort, + time); + if (!res.isNull()) + return res.toString(); + } +#endif + + QString format_str = timeFormat(format); + return toString(time, format_str); +} + +/*! + \since 4.1 + + Returns the date format used for the current locale. + + If \a format is LongFormat the format will be a long version. + Otherwise it uses a shorter version. + + \sa QDate::toString(), QDate::fromString() +*/ + +QString QLocale::dateFormat(FormatType format) const +{ +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::DateFormatLong : QSystemLocale::DateFormatShort, + QVariant()); + if (!res.isNull()) + return res.toString(); + } +#endif + + quint32 idx, size; + switch (format) { + case LongFormat: + idx = d()->m_long_date_format_idx; + size = d()->m_long_date_format_size; + break; + default: + idx = d()->m_short_date_format_idx; + size = d()->m_short_date_format_size; + break; + } + return getLocaleData(date_format_data + idx, size); +} + +/*! + \since 4.1 + + Returns the time format used for the current locale. + + If \a format is LongFormat the format will be a long version. + Otherwise it uses a shorter version. + + \sa QTime::toString(), QTime::fromString() +*/ + +QString QLocale::timeFormat(FormatType format) const +{ +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::TimeFormatLong : QSystemLocale::TimeFormatShort, + QVariant()); + if (!res.isNull()) + return res.toString(); + } +#endif + + quint32 idx, size; + switch (format) { + case LongFormat: + idx = d()->m_long_time_format_idx; + size = d()->m_long_time_format_size; + break; + default: + idx = d()->m_short_time_format_idx; + size = d()->m_short_time_format_size; + break; + } + return getLocaleData(time_format_data + idx, size); +} + +/*! + \since 4.4 + + Returns the date time format used for the current locale. + + If \a format is ShortFormat the format will be a short version. + Otherwise it uses a longer version. + + \sa QDateTime::toString(), QDateTime::fromString() +*/ + +QString QLocale::dateTimeFormat(FormatType format) const +{ +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(format == LongFormat + ? QSystemLocale::DateTimeFormatLong + : QSystemLocale::DateTimeFormatShort, + QVariant()); + if (!res.isNull()) { + return res.toString(); + } + } +#endif + return dateFormat(format) + QLatin1Char(' ') + timeFormat(format); +} + +/*! + \since 4.4 + + Parses the time string given in \a string and returns the + time. The format of the time string is chosen according to the + \a format parameter (see timeFormat()). + + If the time could not be parsed, returns an invalid time. + + \sa timeFormat(), toDate(), toDateTime(), QTime::fromString() +*/ +#ifndef QT_NO_DATESTRING +QTime QLocale::toTime(const QString &string, FormatType format) const +{ + return toTime(string, timeFormat(format)); +} +#endif + +/*! + \since 4.4 + + Parses the date string given in \a string and returns the + date. The format of the date string is chosen according to the + \a format parameter (see dateFormat()). + + If the date could not be parsed, returns an invalid date. + + \sa dateFormat(), toTime(), toDateTime(), QDate::fromString() +*/ +#ifndef QT_NO_DATESTRING +QDate QLocale::toDate(const QString &string, FormatType format) const +{ + return toDate(string, dateFormat(format)); +} +#endif + +/*! + \since 4.4 + + Parses the date/time string given in \a string and returns the + time. The format of the date/time string is chosen according to the + \a format parameter (see dateTimeFormat()). + + If the string could not be parsed, returns an invalid QDateTime. + + \sa dateTimeFormat(), toTime(), toDate(), QDateTime::fromString() +*/ + +#ifndef QT_NO_DATESTRING +QDateTime QLocale::toDateTime(const QString &string, FormatType format) const +{ + return toDateTime(string, dateFormat(format)); +} +#endif + +/*! + \since 4.4 + + Parses the time string given in \a string and returns the + time. See QTime::fromString() for information on what is a valid + format string. + + If the time could not be parsed, returns an invalid time. + + \sa timeFormat(), toDate(), toDateTime(), QTime::fromString() +*/ +#ifndef QT_NO_DATESTRING +QTime QLocale::toTime(const QString &string, const QString &format) const +{ + QTime time; +#ifndef QT_BOOTSTRAPPED + QDateTimeParser dt(QVariant::Time, QDateTimeParser::FromString); + dt.defaultLocale = *this; + if (dt.parseFormat(format)) + dt.fromString(string, 0, &time); +#else + Q_UNUSED(string); + Q_UNUSED(format); +#endif + return time; +} +#endif + +/*! + \since 4.4 + + Parses the date string given in \a string and returns the + date. See QDate::fromString() for information on the expressions + that can be used with this function. + + This function searches month names and the names of the days of + the week in the current locale. + + If the date could not be parsed, returns an invalid date. + + \sa dateFormat(), toTime(), toDateTime(), QDate::fromString() +*/ +#ifndef QT_NO_DATESTRING +QDate QLocale::toDate(const QString &string, const QString &format) const +{ + QDate date; +#ifndef QT_BOOTSTRAPPED + QDateTimeParser dt(QVariant::Date, QDateTimeParser::FromString); + dt.defaultLocale = *this; + if (dt.parseFormat(format)) + dt.fromString(string, &date, 0); +#else + Q_UNUSED(string); + Q_UNUSED(format); +#endif + return date; +} +#endif + +/*! + \since 4.4 + + Parses the date/time string given in \a string and returns the + time. See QDateTime::fromString() for information on the expressions + that can be used with this function. + + \note The month and day names used must be given in the user's local + language. + + If the string could not be parsed, returns an invalid QDateTime. + + \sa dateTimeFormat(), toTime(), toDate(), QDateTime::fromString() +*/ +#ifndef QT_NO_DATESTRING +QDateTime QLocale::toDateTime(const QString &string, const QString &format) const +{ +#ifndef QT_BOOTSTRAPPED + QTime time; + QDate date; + + QDateTimeParser dt(QVariant::DateTime, QDateTimeParser::FromString); + dt.defaultLocale = *this; + if (dt.parseFormat(format) && dt.fromString(string, &date, &time)) + return QDateTime(date, time); +#else + Q_UNUSED(string); + Q_UNUSED(format); +#endif + return QDateTime(QDate(), QTime(-1, -1, -1)); +} +#endif + + +/*! + \since 4.1 + + Returns the decimal point character of this locale. +*/ +QChar QLocale::decimalPoint() const +{ + return d()->decimal(); +} + +/*! + \since 4.1 + + Returns the group separator character of this locale. +*/ +QChar QLocale::groupSeparator() const +{ + return d()->group(); +} + +/*! + \since 4.1 + + Returns the percent character of this locale. +*/ +QChar QLocale::percent() const +{ + return d()->percent(); +} + +/*! + \since 4.1 + + Returns the zero digit character of this locale. +*/ +QChar QLocale::zeroDigit() const +{ + return d()->zero(); +} + +/*! + \since 4.1 + + Returns the negative sign character of this locale. +*/ +QChar QLocale::negativeSign() const +{ + return d()->minus(); +} + +/*! + \since 4.5 + + Returns the positive sign character of this locale. +*/ +QChar QLocale::positiveSign() const +{ + return d()->plus(); +} + +/*! + \since 4.1 + + Returns the exponential character of this locale. +*/ +QChar QLocale::exponential() const +{ + return d()->exponential(); +} + +static bool qIsUpper(char c) +{ + return c >= 'A' && c <= 'Z'; +} + +static char qToLower(char c) +{ + if (c >= 'A' && c <= 'Z') + return c - 'A' + 'a'; + else + return c; +} + +/*! + \overload + + \a f and \a prec have the same meaning as in QString::number(double, char, int). + + \sa toDouble() +*/ + +QString QLocale::toString(double i, char f, int prec) const +{ + QLocalePrivate::DoubleForm form = QLocalePrivate::DFDecimal; + uint flags = 0; + + if (qIsUpper(f)) + flags = QLocalePrivate::CapitalEorX; + f = qToLower(f); + + switch (f) { + case 'f': + form = QLocalePrivate::DFDecimal; + break; + case 'e': + form = QLocalePrivate::DFExponent; + break; + case 'g': + form = QLocalePrivate::DFSignificantDigits; + break; + default: + break; + } + + if (!(p.numberOptions & OmitGroupSeparator)) + flags |= QLocalePrivate::ThousandsGroup; + return d()->doubleToString(i, prec, form, -1, flags); +} + +/*! + \fn QLocale QLocale::c() + + Returns a QLocale object initialized to the "C" locale. + + \sa system() +*/ + +/*! + Returns a QLocale object initialized to the system locale. + + On Windows and Mac, this locale will use the decimal/grouping characters and date/time + formats specified in the system configuration panel. + + \sa QTextCodec::locale() c() +*/ + +QLocale QLocale::system() +{ + QLocale result(C); + result.p.index = localePrivateIndex(systemPrivate()); + return result; +} + +/*! + \since 4.3 + + Returns the list of countries that have entires for \a language in Qt's locale + database. If the result is an empty list, then \a language is not represented in + Qt's locale database. +*/ +QList<QLocale::Country> QLocale::countriesForLanguage(Language language) +{ + QList<Country> result; + + unsigned language_id = language; + uint idx = locale_index[language_id]; + + if (language == C) { + result << AnyCountry; + return result; + } + + const QLocalePrivate *d = locale_data + idx; + + while (d->languageId() == language_id) { + result << static_cast<Country>(d->countryId()); + ++d; + } + + return result; +} + +/*! + \since 4.2 + + Returns the localized name of \a month, in the format specified + by \a type. + + \sa dayName(), standaloneMonthName() +*/ +QString QLocale::monthName(int month, FormatType type) const +{ + if (month < 1 || month > 12) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(type == LongFormat + ? QSystemLocale::MonthNameLong : QSystemLocale::MonthNameShort, + month); + if (!res.isNull()) + return res.toString(); + } +#endif + + quint32 idx, size; + switch (type) { + case QLocale::LongFormat: + idx = d()->m_long_month_names_idx; + size = d()->m_long_month_names_size; + break; + case QLocale::ShortFormat: + idx = d()->m_short_month_names_idx; + size = d()->m_short_month_names_size; + break; + case QLocale::NarrowFormat: + idx = d()->m_narrow_month_names_idx; + size = d()->m_narrow_month_names_size; + break; + default: + return QString(); + } + return getLocaleListData(months_data + idx, size, month - 1); +} + +/*! + \since 4.5 + + Returns the localized name of \a month that is used as a + standalone text, in the format specified by \a type. + + If the locale information doesn't specify the standalone month + name then return value is the same as in monthName(). + + \sa monthName(), standaloneDayName() +*/ +QString QLocale::standaloneMonthName(int month, FormatType type) const +{ + if (month < 1 || month > 12) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(type == LongFormat + ? QSystemLocale::MonthNameLong : QSystemLocale::MonthNameShort, + month); + if (!res.isNull()) + return res.toString(); + } +#endif + + quint32 idx, size; + switch (type) { + case QLocale::LongFormat: + idx = d()->m_standalone_long_month_names_idx; + size = d()->m_standalone_long_month_names_size; + break; + case QLocale::ShortFormat: + idx = d()->m_standalone_short_month_names_idx; + size = d()->m_standalone_short_month_names_size; + break; + case QLocale::NarrowFormat: + idx = d()->m_standalone_narrow_month_names_idx; + size = d()->m_standalone_narrow_month_names_size; + break; + default: + return QString(); + } + QString name = getLocaleListData(standalone_months_data + idx, size, month - 1); + if (name.isEmpty()) + return monthName(month, type); + return name; +} + +/*! + \since 4.2 + + Returns the localized name of the \a day (where 1 represents + Monday, 2 represents Tuesday and so on), in the format specified + by \a type. + + \sa monthName(), standaloneDayName() +*/ +QString QLocale::dayName(int day, FormatType type) const +{ + if (day < 1 || day > 7) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(type == LongFormat + ? QSystemLocale::DayNameLong : QSystemLocale::DayNameShort, + day); + if (!res.isNull()) + return res.toString(); + } +#endif + if (day == 7) + day = 0; + + quint32 idx, size; + switch (type) { + case QLocale::LongFormat: + idx = d()->m_long_day_names_idx; + size = d()->m_long_day_names_size; + break; + case QLocale::ShortFormat: + idx = d()->m_short_day_names_idx; + size = d()->m_short_day_names_size; + break; + case QLocale::NarrowFormat: + idx = d()->m_narrow_day_names_idx; + size = d()->m_narrow_day_names_size; + break; + default: + return QString(); + } + return getLocaleListData(days_data + idx, size, day); +} + +/*! + \since 4.5 + + Returns the localized name of the \a day (where 1 represents + Monday, 2 represents Tuesday and so on) that is used as a + standalone text, in the format specified by \a type. + + If the locale information does not specify the standalone day + name then return value is the same as in dayName(). + + \sa dayName(), standaloneMonthName() +*/ +QString QLocale::standaloneDayName(int day, FormatType type) const +{ + if (day < 1 || day > 7) + return QString(); + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(type == LongFormat + ? QSystemLocale::DayNameLong : QSystemLocale::DayNameShort, + day); + if (!res.isNull()) + return res.toString(); + } +#endif + if (day == 7) + day = 0; + + quint32 idx, size; + switch (type) { + case QLocale::LongFormat: + idx = d()->m_standalone_long_day_names_idx; + size = d()->m_standalone_long_day_names_size; + break; + case QLocale::ShortFormat: + idx = d()->m_standalone_short_day_names_idx; + size = d()->m_standalone_short_day_names_size; + break; + case QLocale::NarrowFormat: + idx = d()->m_standalone_narrow_day_names_idx; + size = d()->m_standalone_narrow_day_names_size; + break; + default: + return QString(); + } + QString name = getLocaleListData(days_data + idx, size, day); + if (name.isEmpty()) + return dayName(day == 0 ? 7 : day, type); + return name; +} + +/*! + \since 4.4 + + Returns the measurement system for the locale. +*/ +QLocale::MeasurementSystem QLocale::measurementSystem() const +{ + MeasurementSystem meas = MetricSystem; + bool found = false; + +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(QSystemLocale::MeasurementSystem, QVariant()); + if (!res.isNull()) { + meas = MeasurementSystem(res.toInt()); + found = true; + } + } +#endif + + if (!found) { + meas = d()->measurementSystem(); + found = true; + } + + return meas; +} + +/*! + \since 4.5 + + Returns the localized name of the "AM" suffix for times specified using + the conventions of the 12-hour clock. + + \sa pmText() +*/ +QString QLocale::amText() const +{ +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(QSystemLocale::AMText, QVariant()); + if (!res.isNull()) + return res.toString(); + } +#endif + return getLocaleData(am_data + d()->m_am_idx, d()->m_am_size); +} + +/*! + \since 4.5 + + Returns the localized name of the "PM" suffix for times specified using + the conventions of the 12-hour clock. + + \sa amText() +*/ +QString QLocale::pmText() const +{ +#ifndef QT_NO_SYSTEMLOCALE + if (d() == systemPrivate()) { + QVariant res = systemLocale()->query(QSystemLocale::PMText, QVariant()); + if (!res.isNull()) + return res.toString(); + } +#endif + return getLocaleData(pm_data + d()->m_pm_idx, d()->m_pm_size); +} + + +/*! +\fn QString QLocale::toString(short i) const + +\overload + +\sa toShort() +*/ + +/*! +\fn QString QLocale::toString(ushort i) const + +\overload + +\sa toUShort() +*/ + +/*! +\fn QString QLocale::toString(int i) const + +\overload + +\sa toInt() +*/ + +/*! +\fn QString QLocale::toString(uint i) const + +\overload + +\sa toUInt() +*/ + +/* +\fn QString QLocale::toString(long i) const + +\overload + +\sa toLong() +*/ + +/* +\fn QString QLocale::toString(ulong i) const + +\overload + +\sa toULong() +*/ + +/*! +\fn QString QLocale::toString(float i, char f = 'g', int prec = 6) const + +\overload + +\a f and \a prec have the same meaning as in QString::number(double, char, int). + +\sa toDouble() +*/ + + +static QString qulltoa(qulonglong l, int base, const QLocalePrivate &locale) +{ + ushort buff[65]; // length of MAX_ULLONG in base 2 + ushort *p = buff + 65; + const QChar _zero = locale.zero(); + + if (base != 10 || _zero.unicode() == '0') { + while (l != 0) { + int c = l % base; + + --p; + + if (c < 10) + *p = '0' + c; + else + *p = c - 10 + 'a'; + + l /= base; + } + } + else { + while (l != 0) { + int c = l % base; + + *(--p) = _zero.unicode() + c; + + l /= base; + } + } + + return QString(reinterpret_cast<QChar *>(p), 65 - (p - buff)); +} + +static QString qlltoa(qlonglong l, int base, const QLocalePrivate &locale) +{ + return qulltoa(l < 0 ? -l : l, base, locale); +} + +enum PrecisionMode { + PMDecimalDigits = 0x01, + PMSignificantDigits = 0x02, + PMChopTrailingZeros = 0x03 +}; + +static QString &decimalForm(QString &digits, int decpt, uint precision, + PrecisionMode pm, + bool always_show_decpt, + bool thousands_group, + const QLocalePrivate &locale) +{ + if (decpt < 0) { + for (int i = 0; i < -decpt; ++i) + digits.prepend(locale.zero()); + decpt = 0; + } + else if (decpt > digits.length()) { + for (int i = digits.length(); i < decpt; ++i) + digits.append(locale.zero()); + } + + if (pm == PMDecimalDigits) { + uint decimal_digits = digits.length() - decpt; + for (uint i = decimal_digits; i < precision; ++i) + digits.append(locale.zero()); + } + else if (pm == PMSignificantDigits) { + for (uint i = digits.length(); i < precision; ++i) + digits.append(locale.zero()); + } + else { // pm == PMChopTrailingZeros + } + + if (always_show_decpt || decpt < digits.length()) + digits.insert(decpt, locale.decimal()); + + if (thousands_group) { + for (int i = decpt - 3; i > 0; i -= 3) + digits.insert(i, locale.group()); + } + + if (decpt == 0) + digits.prepend(locale.zero()); + + return digits; +} + +static QString &exponentForm(QString &digits, int decpt, uint precision, + PrecisionMode pm, + bool always_show_decpt, + const QLocalePrivate &locale) +{ + int exp = decpt - 1; + + if (pm == PMDecimalDigits) { + for (uint i = digits.length(); i < precision + 1; ++i) + digits.append(locale.zero()); + } + else if (pm == PMSignificantDigits) { + for (uint i = digits.length(); i < precision; ++i) + digits.append(locale.zero()); + } + else { // pm == PMChopTrailingZeros + } + + if (always_show_decpt || digits.length() > 1) + digits.insert(1, locale.decimal()); + + digits.append(locale.exponential()); + digits.append(locale.longLongToString(exp, 2, 10, + -1, QLocalePrivate::AlwaysShowSign)); + + return digits; +} + +static bool isZero(double d) +{ + uchar *ch = (uchar *)&d; +#ifdef QT_ARMFPA + return !(ch[3] & 0x7F || ch[2] || ch[1] || ch[0] || ch[7] || ch[6] || ch[5] || ch[4]); +#else + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + return !(ch[0] & 0x7F || ch[1] || ch[2] || ch[3] || ch[4] || ch[5] || ch[6] || ch[7]); + } else { + return !(ch[7] & 0x7F || ch[6] || ch[5] || ch[4] || ch[3] || ch[2] || ch[1] || ch[0]); + } +#endif +} + +QString QLocalePrivate::dateTimeToString(const QString &format, const QDate *date, const QTime *time, + const QLocale *q) const +{ + Q_ASSERT(date || time); + if ((date && !date->isValid()) || (time && !time->isValid())) + return QString(); + const bool format_am_pm = time && timeFormatContainsAP(format); + + enum { AM, PM } am_pm = AM; + int hour12 = time ? time->hour() : -1; + if (time) { + if (hour12 == 0) { + am_pm = AM; + hour12 = 12; + } else if (hour12 < 12) { + am_pm = AM; + } else if (hour12 == 12) { + am_pm = PM; + } else { + am_pm = PM; + hour12 -= 12; + } + } + + QString result; + + int i = 0; + while (i < format.size()) { + if (format.at(i).unicode() == '\'') { + result.append(readEscapedFormatString(format, &i)); + continue; + } + + const QChar c = format.at(i); + int repeat = repeatCount(format, i); + bool used = false; + if (date) { + switch (c.unicode()) { + case 'y': + used = true; + if (repeat >= 4) + repeat = 4; + else if (repeat >= 2) + repeat = 2; + + switch (repeat) { + case 4: + result.append(longLongToString(date->year())); + break; + case 2: + result.append(longLongToString(date->year() % 100, -1, 10, 2, + QLocalePrivate::ZeroPadded)); + break; + default: + repeat = 1; + result.append(c); + break; + } + break; + + case 'M': + used = true; + repeat = qMin(repeat, 4); + switch (repeat) { + case 1: + result.append(longLongToString(date->month())); + break; + case 2: + result.append(longLongToString(date->month(), -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + case 3: + result.append(q->monthName(date->month(), QLocale::ShortFormat)); + break; + case 4: + result.append(q->monthName(date->month(), QLocale::LongFormat)); + break; + } + break; + + case 'd': + used = true; + repeat = qMin(repeat, 4); + switch (repeat) { + case 1: + result.append(longLongToString(date->day())); + break; + case 2: + result.append(longLongToString(date->day(), -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + case 3: + result.append(q->dayName(date->dayOfWeek(), QLocale::ShortFormat)); + break; + case 4: + result.append(q->dayName(date->dayOfWeek(), QLocale::LongFormat)); + break; + } + break; + + default: + break; + } + } + if (!used && time) { + switch (c.unicode()) { + case 'h': { + used = true; + repeat = qMin(repeat, 2); + const int hour = format_am_pm ? hour12 : time->hour(); + + switch (repeat) { + case 1: + result.append(longLongToString(hour)); + break; + case 2: + result.append(longLongToString(hour, -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + } + break; + } + case 'H': + used = true; + repeat = qMin(repeat, 2); + switch (repeat) { + case 1: + result.append(longLongToString(time->hour())); + break; + case 2: + result.append(longLongToString(time->hour(), -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + } + break; + + case 'm': + used = true; + repeat = qMin(repeat, 2); + switch (repeat) { + case 1: + result.append(longLongToString(time->minute())); + break; + case 2: + result.append(longLongToString(time->minute(), -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + } + break; + + case 's': + used = true; + repeat = qMin(repeat, 2); + switch (repeat) { + case 1: + result.append(longLongToString(time->second())); + break; + case 2: + result.append(longLongToString(time->second(), -1, 10, 2, QLocalePrivate::ZeroPadded)); + break; + } + break; + + case 'a': + used = true; + if (i + 1 < format.length() && format.at(i + 1).unicode() == 'p') { + repeat = 2; + } else { + repeat = 1; + } + result.append(am_pm == AM ? QLatin1String("am") : QLatin1String("pm")); + break; + + case 'A': + used = true; + if (i + 1 < format.length() && format.at(i + 1).unicode() == 'P') { + repeat = 2; + } else { + repeat = 1; + } + result.append(am_pm == AM ? QLatin1String("AM") : QLatin1String("PM")); + break; + + case 'z': + used = true; + if (repeat >= 3) { + repeat = 3; + } else { + repeat = 1; + } + switch (repeat) { + case 1: + result.append(longLongToString(time->msec())); + break; + case 3: + result.append(longLongToString(time->msec(), -1, 10, 3, QLocalePrivate::ZeroPadded)); + break; + } + break; + + case 't': + used = true; + repeat = 1; + result.append(timeZone()); + break; + default: + break; + } + } + if (!used) { + result.append(QString(repeat, c)); + } + i += repeat; + } + + return result; +} + +QString QLocalePrivate::doubleToString(double d, + int precision, + DoubleForm form, + int width, + unsigned flags) const +{ + if (precision == -1) + precision = 6; + if (width == -1) + width = 0; + + bool negative = false; + bool special_number = false; // nan, +/-inf + QString num_str; + + // Detect special numbers (nan, +/-inf) + if (qt_is_inf(d)) { + num_str = QString::fromLatin1("inf"); + special_number = true; + negative = d < 0; + } else if (qt_is_nan(d)) { + num_str = QString::fromLatin1("nan"); + special_number = true; + } + + // Handle normal numbers + if (!special_number) { + int decpt, sign; + QString digits; + +#ifdef QT_QLOCALE_USES_FCVT + // NOT thread safe! + if (form == DFDecimal) { + digits = QLatin1String(fcvt(d, precision, &decpt, &sign)); + } else { + int pr = precision; + if (form == DFExponent) + ++pr; + else if (form == DFSignificantDigits && pr == 0) + pr = 1; + digits = QLatin1String(ecvt(d, pr, &decpt, &sign)); + + // Chop trailing zeros + if (digits.length() > 0) { + int last_nonzero_idx = digits.length() - 1; + while (last_nonzero_idx > 0 + && digits.unicode()[last_nonzero_idx] == QLatin1Char('0')) + --last_nonzero_idx; + digits.truncate(last_nonzero_idx + 1); + } + + } + +#else + int mode; + if (form == DFDecimal) + mode = 3; + else + mode = 2; + + /* This next bit is a bit quirky. In DFExponent form, the precision + is the number of digits after decpt. So that would suggest using + mode=3 for qdtoa. But qdtoa behaves strangely when mode=3 and + precision=0. So we get around this by using mode=2 and reasoning + that we want precision+1 significant digits, since the decimal + point in this mode is always after the first digit. */ + int pr = precision; + if (form == DFExponent) + ++pr; + + char *rve = 0; + char *buff = 0; + digits = QLatin1String(qdtoa(d, mode, pr, &decpt, &sign, &rve, &buff)); + if (buff != 0) + free(buff); +#endif // QT_QLOCALE_USES_FCVT + + const QChar _zero = zero(); + + if (_zero.unicode() != '0') { + ushort z = _zero.unicode() - '0'; + for (int i = 0; i < digits.length(); ++i) + reinterpret_cast<ushort *>(digits.data())[i] += z; + } + + bool always_show_decpt = (flags & Alternate || flags & ForcePoint); + switch (form) { + case DFExponent: { + num_str = exponentForm(digits, decpt, precision, PMDecimalDigits, + always_show_decpt, *this); + break; + } + case DFDecimal: { + num_str = decimalForm(digits, decpt, precision, PMDecimalDigits, + always_show_decpt, flags & ThousandsGroup, + *this); + break; + } + case DFSignificantDigits: { + PrecisionMode mode = (flags & Alternate) ? + PMSignificantDigits : PMChopTrailingZeros; + + if (decpt != digits.length() && (decpt <= -4 || decpt > precision)) + num_str = exponentForm(digits, decpt, precision, mode, + always_show_decpt, *this); + else + num_str = decimalForm(digits, decpt, precision, mode, + always_show_decpt, flags & ThousandsGroup, + *this); + break; + } + } + + negative = sign != 0 && !isZero(d); + } + + // pad with zeros. LeftAdjusted overrides this flag). Also, we don't + // pad special numbers + if (flags & QLocalePrivate::ZeroPadded + && !(flags & QLocalePrivate::LeftAdjusted) + && !special_number) { + int num_pad_chars = width - num_str.length(); + // leave space for the sign + if (negative + || flags & QLocalePrivate::AlwaysShowSign + || flags & QLocalePrivate::BlankBeforePositive) + --num_pad_chars; + + for (int i = 0; i < num_pad_chars; ++i) + num_str.prepend(zero()); + } + + // add sign + if (negative) + num_str.prepend(minus()); + else if (flags & QLocalePrivate::AlwaysShowSign) + num_str.prepend(plus()); + else if (flags & QLocalePrivate::BlankBeforePositive) + num_str.prepend(QLatin1Char(' ')); + + if (flags & QLocalePrivate::CapitalEorX) + num_str = num_str.toUpper(); + + return num_str; +} + +QString QLocalePrivate::longLongToString(qlonglong l, int precision, + int base, int width, + unsigned flags) const +{ + bool precision_not_specified = false; + if (precision == -1) { + precision_not_specified = true; + precision = 1; + } + + bool negative = l < 0; + if (base != 10) { + // these are not supported by sprintf for octal and hex + flags &= ~AlwaysShowSign; + flags &= ~BlankBeforePositive; + negative = false; // neither are negative numbers + } + + QString num_str; + if (base == 10) + num_str = qlltoa(l, base, *this); + else + num_str = qulltoa(l, base, *this); + + uint cnt_thousand_sep = 0; + if (flags & ThousandsGroup && base == 10) { + for (int i = num_str.length() - 3; i > 0; i -= 3) { + num_str.insert(i, group()); + ++cnt_thousand_sep; + } + } + + for (int i = num_str.length()/* - cnt_thousand_sep*/; i < precision; ++i) + num_str.prepend(base == 10 ? zero() : QChar::fromLatin1('0')); + + if ((flags & Alternate || flags & ShowBase) + && base == 8 + && (num_str.isEmpty() || num_str[0].unicode() != QLatin1Char('0'))) + num_str.prepend(QLatin1Char('0')); + + // LeftAdjusted overrides this flag ZeroPadded. sprintf only padds + // when precision is not specified in the format string + bool zero_padded = flags & ZeroPadded + && !(flags & LeftAdjusted) + && precision_not_specified; + + if (zero_padded) { + int num_pad_chars = width - num_str.length(); + + // leave space for the sign + if (negative + || flags & AlwaysShowSign + || flags & BlankBeforePositive) + --num_pad_chars; + + // leave space for optional '0x' in hex form + if (base == 16 && (flags & Alternate || flags & ShowBase)) + num_pad_chars -= 2; + // leave space for optional '0b' in binary form + else if (base == 2 && (flags & Alternate || flags & ShowBase)) + num_pad_chars -= 2; + + for (int i = 0; i < num_pad_chars; ++i) + num_str.prepend(base == 10 ? zero() : QChar::fromLatin1('0')); + } + + if (flags & CapitalEorX) + num_str = num_str.toUpper(); + + if (base == 16 && (flags & Alternate || flags & ShowBase)) + num_str.prepend(QLatin1String(flags & UppercaseBase ? "0X" : "0x")); + if (base == 2 && (flags & Alternate || flags & ShowBase)) + num_str.prepend(QLatin1String(flags & UppercaseBase ? "0B" : "0b")); + + // add sign + if (negative) + num_str.prepend(minus()); + else if (flags & AlwaysShowSign) + num_str.prepend(plus()); + else if (flags & BlankBeforePositive) + num_str.prepend(QLatin1Char(' ')); + + return num_str; +} + +QString QLocalePrivate::unsLongLongToString(qulonglong l, int precision, + int base, int width, + unsigned flags) const +{ + bool precision_not_specified = false; + if (precision == -1) { + precision_not_specified = true; + precision = 1; + } + + QString num_str = qulltoa(l, base, *this); + + uint cnt_thousand_sep = 0; + if (flags & ThousandsGroup && base == 10) { + for (int i = num_str.length() - 3; i > 0; i -=3) { + num_str.insert(i, group()); + ++cnt_thousand_sep; + } + } + + for (int i = num_str.length()/* - cnt_thousand_sep*/; i < precision; ++i) + num_str.prepend(base == 10 ? zero() : QChar::fromLatin1('0')); + + if ((flags & Alternate || flags & ShowBase) + && base == 8 + && (num_str.isEmpty() || num_str[0].unicode() != QLatin1Char('0'))) + num_str.prepend(QLatin1Char('0')); + + // LeftAdjusted overrides this flag ZeroPadded. sprintf only padds + // when precision is not specified in the format string + bool zero_padded = flags & ZeroPadded + && !(flags & LeftAdjusted) + && precision_not_specified; + + if (zero_padded) { + int num_pad_chars = width - num_str.length(); + + // leave space for optional '0x' in hex form + if (base == 16 && flags & Alternate) + num_pad_chars -= 2; + // leave space for optional '0b' in binary form + else if (base == 2 && flags & Alternate) + num_pad_chars -= 2; + + for (int i = 0; i < num_pad_chars; ++i) + num_str.prepend(base == 10 ? zero() : QChar::fromLatin1('0')); + } + + if (flags & CapitalEorX) + num_str = num_str.toUpper(); + + if (base == 16 && (flags & Alternate || flags & ShowBase)) + num_str.prepend(QLatin1String(flags & UppercaseBase ? "0X" : "0x")); + else if (base == 2 && (flags & Alternate || flags & ShowBase)) + num_str.prepend(QLatin1String(flags & UppercaseBase ? "0B" : "0b")); + + // add sign + if (flags & AlwaysShowSign) + num_str.prepend(plus()); + else if (flags & BlankBeforePositive) + num_str.prepend(QLatin1Char(' ')); + + return num_str; +} + +// Removes thousand-group separators in "C" locale. +static bool removeGroupSeparators(QLocalePrivate::CharBuff *num) +{ + int group_cnt = 0; // counts number of group chars + int decpt_idx = -1; + + char *data = num->data(); + int l = qstrlen(data); + + // Find the decimal point and check if there are any group chars + int i = 0; + for (; i < l; ++i) { + char c = data[i]; + + if (c == ',') { + if (i == 0 || data[i - 1] < '0' || data[i - 1] > '9') + return false; + if (i == l - 1 || data[i + 1] < '0' || data[i + 1] > '9') + return false; + ++group_cnt; + } + else if (c == '.') { + // Fail if more than one decimal points + if (decpt_idx != -1) + return false; + decpt_idx = i; + } else if (c == 'e' || c == 'E') { + // an 'e' or 'E' - if we have not encountered a decimal + // point, this is where it "is". + if (decpt_idx == -1) + decpt_idx = i; + } + } + + // If no group chars, we're done + if (group_cnt == 0) + return true; + + // No decimal point means that it "is" at the end of the string + if (decpt_idx == -1) + decpt_idx = l; + + i = 0; + while (i < l && group_cnt > 0) { + char c = data[i]; + + if (c == ',') { + // Don't allow group chars after the decimal point + if (i > decpt_idx) + return false; + + // Check that it is placed correctly relative to the decpt + if ((decpt_idx - i) % 4 != 0) + return false; + + // Remove it + memmove(data + i, data + i + 1, l - i - 1); + data[--l] = '\0'; + + --group_cnt; + --decpt_idx; + } else { + // Check that we are not missing a separator + if (i < decpt_idx + && (decpt_idx - i) % 4 == 0 + && !(i == 0 && c == '-')) // check for negative sign at start of string + return false; + ++i; + } + } + + return true; +} + +/* + Converts a number in locale to its representation in the C locale. + Only has to guarantee that a string that is a correct representation of + a number will be converted. If junk is passed in, junk will be passed + out and the error will be detected during the actual conversion to a + number. We can't detect junk here, since we don't even know the base + of the number. +*/ +bool QLocalePrivate::numberToCLocale(const QString &num, + GroupSeparatorMode group_sep_mode, + CharBuff *result) const +{ + const QChar *uc = num.unicode(); + int l = num.length(); + int idx = 0; + + // Skip whitespace + while (idx < l && uc[idx].isSpace()) + ++idx; + if (idx == l) + return false; + + const QChar _group = group(); + + while (idx < l) { + const QChar &in = uc[idx]; + + char out = digitToCLocale(in); + if (out == 0) { + if (in == list()) + out = ';'; + else if (in == percent()) + out = '%'; + // for handling base-x numbers + else if (in.unicode() >= 'A' && in.unicode() <= 'Z') + out = in.toLower().toLatin1(); + else if (in.unicode() >= 'a' && in.unicode() <= 'z') + out = in.toLatin1(); + else + break; + } + + result->append(out); + + ++idx; + } + + // Check trailing whitespace + for (; idx < l; ++idx) { + if (!uc[idx].isSpace()) + return false; + } + + result->append('\0'); + + // Check separators + if (group_sep_mode == ParseGroupSeparators + && !removeGroupSeparators(result)) + return false; + + + return true; +} + +bool QLocalePrivate::validateChars(const QString &str, NumberMode numMode, QByteArray *buff, + int decDigits) const +{ + buff->clear(); + buff->reserve(str.length()); + + const bool scientific = numMode == DoubleScientificMode; + bool lastWasE = false; + int eCnt = 0; + int decPointCnt = 0; + bool dec = false; + int decDigitCnt = 0; + + for (int i = 0; i < str.length(); ++i) { + char c = digitToCLocale(str.at(i)); + + if (c >= '0' && c <= '9') { + if (numMode != IntegerMode) { + // If a double has too many digits after decpt, it shall be Invalid. + if (dec && decDigits != -1 && decDigits < ++decDigitCnt) + return false; + } + } else { + switch (c) { + case '.': + if (numMode == IntegerMode) { + // If an integer has a decimal point, it shall be Invalid. + return false; + } else { + // If a double has more than one decimal point, it shall be Invalid. + if (++decPointCnt > 1) + return false; +#if 0 + // If a double with no decimal digits has a decimal point, it shall be + // Invalid. + if (decDigits == 0) + return false; +#endif // On second thoughts, it shall be Valid. + + dec = true; + } + break; + + case '+': + case '-': + if (scientific) { + // If a scientific has a sign that's not at the beginning or after + // an 'e', it shall be Invalid. + if (i != 0 && !lastWasE) + return false; + } else { + // If a non-scientific has a sign that's not at the beginning, + // it shall be Invalid. + if (i != 0) + return false; + } + break; + + case ',': + return false; + + case 'e': + if (scientific) { + // If a scientific has more than one 'e', it shall be Invalid. + if (++eCnt > 1) + return false; + dec = false; + } else { + // If a non-scientific has an 'e', it shall be Invalid. + return false; + } + break; + + default: + // If it's not a valid digit, it shall be Invalid. + return false; + } + } + + lastWasE = c == 'e'; + buff->append(c); + } + + return true; +} + +double QLocalePrivate::stringToDouble(const QString &number, bool *ok, + GroupSeparatorMode group_sep_mode) const +{ + CharBuff buff; + if (!numberToCLocale(number, group_sep_mode, &buff)) { + if (ok != 0) + *ok = false; + return 0.0; + } + return bytearrayToDouble(buff.constData(), ok); +} + +qlonglong QLocalePrivate::stringToLongLong(const QString &number, int base, + bool *ok, GroupSeparatorMode group_sep_mode) const +{ + CharBuff buff; + if (!numberToCLocale(number, group_sep_mode, &buff)) { + if (ok != 0) + *ok = false; + return 0; + } + + return bytearrayToLongLong(buff.constData(), base, ok); +} + +qulonglong QLocalePrivate::stringToUnsLongLong(const QString &number, int base, + bool *ok, GroupSeparatorMode group_sep_mode) const +{ + CharBuff buff; + if (!numberToCLocale(number, group_sep_mode, &buff)) { + if (ok != 0) + *ok = false; + return 0; + } + + return bytearrayToUnsLongLong(buff.constData(), base, ok); +} + + +double QLocalePrivate::bytearrayToDouble(const char *num, bool *ok, bool *overflow) +{ + if (ok != 0) + *ok = true; + if (overflow != 0) + *overflow = false; + + if (*num == '\0') { + if (ok != 0) + *ok = false; + return 0.0; + } + + if (qstrcmp(num, "nan") == 0) + return qt_snan(); + + if (qstrcmp(num, "+inf") == 0 || qstrcmp(num, "inf") == 0) + return qt_inf(); + + if (qstrcmp(num, "-inf") == 0) + return -qt_inf(); + + bool _ok; + const char *endptr; + double d = qstrtod(num, &endptr, &_ok); + + if (!_ok) { + // the only way strtod can fail with *endptr != '\0' on a non-empty + // input string is overflow + if (ok != 0) + *ok = false; + if (overflow != 0) + *overflow = *endptr != '\0'; + return 0.0; + } + + if (*endptr != '\0') { + // we stopped at a non-digit character after converting some digits + if (ok != 0) + *ok = false; + if (overflow != 0) + *overflow = false; + return 0.0; + } + + if (ok != 0) + *ok = true; + if (overflow != 0) + *overflow = false; + return d; +} + +qlonglong QLocalePrivate::bytearrayToLongLong(const char *num, int base, bool *ok, bool *overflow) +{ + bool _ok; + const char *endptr; + + if (*num == '\0') { + if (ok != 0) + *ok = false; + if (overflow != 0) + *overflow = false; + return 0; + } + + qlonglong l = qstrtoll(num, &endptr, base, &_ok); + + if (!_ok) { + if (ok != 0) + *ok = false; + if (overflow != 0) { + // the only way qstrtoll can fail with *endptr != '\0' on a non-empty + // input string is overflow + *overflow = *endptr != '\0'; + } + return 0; + } + + if (*endptr != '\0') { + // we stopped at a non-digit character after converting some digits + if (ok != 0) + *ok = false; + if (overflow != 0) + *overflow = false; + return 0; + } + + if (ok != 0) + *ok = true; + if (overflow != 0) + *overflow = false; + return l; +} + +qulonglong QLocalePrivate::bytearrayToUnsLongLong(const char *num, int base, bool *ok) +{ + bool _ok; + const char *endptr; + qulonglong l = qstrtoull(num, &endptr, base, &_ok); + + if (!_ok || *endptr != '\0') { + if (ok != 0) + *ok = false; + return 0; + } + + if (ok != 0) + *ok = true; + return l; +} + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgment: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +// static char sccsid[] = "@(#)strtouq.c 8.1 (Berkeley) 6/4/93"; +// "$FreeBSD: src/lib/libc/stdlib/strtoull.c,v 1.5.2.1 2001/03/02 09:45:20 obrien Exp $"; + +/* + * Convert a string to an unsigned long long integer. + * + * Ignores `locale' stuff. Assumes that the upper and lower case + * alphabets and digits are each contiguous. + */ +static qulonglong qstrtoull(const char *nptr, const char **endptr, register int base, bool *ok) +{ + register const char *s = nptr; + register qulonglong acc; + register unsigned char c; + register qulonglong qbase, cutoff; + register int any, cutlim; + + if (ok != 0) + *ok = true; + + /* + * See strtoq for comments as to the logic used. + */ + s = nptr; + do { + c = *s++; + } while (isspace(c)); + if (c == '-') { + if (ok != 0) + *ok = false; + if (endptr != 0) + *endptr = s - 1; + return 0; + } else { + if (c == '+') + c = *s++; + } + if ((base == 0 || base == 16) && + c == '0' && (*s == 'x' || *s == 'X')) { + c = s[1]; + s += 2; + base = 16; + } + if (base == 0) + base = c == '0' ? 8 : 10; + qbase = unsigned(base); + cutoff = qulonglong(ULLONG_MAX) / qbase; + cutlim = qulonglong(ULLONG_MAX) % qbase; + for (acc = 0, any = 0;; c = *s++) { + if (!isascii(c)) + break; + if (isdigit(c)) + c -= '0'; + else if (isalpha(c)) + c -= isupper(c) ? 'A' - 10 : 'a' - 10; + else + break; + if (c >= base) + break; + if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) + any = -1; + else { + any = 1; + acc *= qbase; + acc += c; + } + } + if (any == 0) { + if (ok != 0) + *ok = false; + } else if (any < 0) { + acc = ULLONG_MAX; + if (ok != 0) + *ok = false; + } + if (endptr != 0) + *endptr = (any ? s - 1 : nptr); + return acc; +} + + +// "$FreeBSD: src/lib/libc/stdlib/strtoll.c,v 1.5.2.1 2001/03/02 09:45:20 obrien Exp $"; + + +/* + * Convert a string to a long long integer. + * + * Ignores `locale' stuff. Assumes that the upper and lower case + * alphabets and digits are each contiguous. + */ +Q_CORE_EXPORT qlonglong qstrtoll(const char *nptr, const char **endptr, register int base, bool *ok) +{ + register const char *s; + register qulonglong acc; + register unsigned char c; + register qulonglong qbase, cutoff; + register int neg, any, cutlim; + + /* + * Skip white space and pick up leading +/- sign if any. + * If base is 0, allow 0x for hex and 0 for octal, else + * assume decimal; if base is already 16, allow 0x. + */ + s = nptr; + do { + c = *s++; + } while (isspace(c)); + if (c == '-') { + neg = 1; + c = *s++; + } else { + neg = 0; + if (c == '+') + c = *s++; + } + if ((base == 0 || base == 16) && + c == '0' && (*s == 'x' || *s == 'X')) { + c = s[1]; + s += 2; + base = 16; + } + if (base == 0) + base = c == '0' ? 8 : 10; + + /* + * Compute the cutoff value between legal numbers and illegal + * numbers. That is the largest legal value, divided by the + * base. An input number that is greater than this value, if + * followed by a legal input character, is too big. One that + * is equal to this value may be valid or not; the limit + * between valid and invalid numbers is then based on the last + * digit. For instance, if the range for quads is + * [-9223372036854775808..9223372036854775807] and the input base + * is 10, cutoff will be set to 922337203685477580 and cutlim to + * either 7 (neg==0) or 8 (neg==1), meaning that if we have + * accumulated a value > 922337203685477580, or equal but the + * next digit is > 7 (or 8), the number is too big, and we will + * return a range error. + * + * Set any if any `digits' consumed; make it negative to indicate + * overflow. + */ + qbase = unsigned(base); + cutoff = neg ? qulonglong(0-(LLONG_MIN + LLONG_MAX)) + LLONG_MAX : LLONG_MAX; + cutlim = cutoff % qbase; + cutoff /= qbase; + for (acc = 0, any = 0;; c = *s++) { + if (!isascii(c)) + break; + if (isdigit(c)) + c -= '0'; + else if (isalpha(c)) + c -= isupper(c) ? 'A' - 10 : 'a' - 10; + else + break; + if (c >= base) + break; + if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) + any = -1; + else { + any = 1; + acc *= qbase; + acc += c; + } + } + if (any < 0) { + acc = neg ? LLONG_MIN : LLONG_MAX; + if (ok != 0) + *ok = false; + } else if (neg) { + acc = (~acc) + 1; + } + if (endptr != 0) + *endptr = (any >= 0 ? s - 1 : nptr); + + if (ok != 0) + *ok = any > 0; + + return acc; +} + +#ifndef QT_QLOCALE_USES_FCVT + +/* From: NetBSD: strtod.c,v 1.26 1998/02/03 18:44:21 perry Exp */ +/* $FreeBSD: src/lib/libc/stdlib/netbsd_strtod.c,v 1.2.2.2 2001/03/02 17:14:15 tegge Exp $ */ + +/* Please send bug reports to + David M. Gay + AT&T Bell Laboratories, Room 2C-463 + 600 Mountain Avenue + Murray Hill, NJ 07974-2070 + U.S.A. + dmg@research.att.com or research!dmg + */ + +/* strtod for IEEE-, VAX-, and IBM-arithmetic machines. + * + * This strtod returns a nearest machine number to the input decimal + * string (or sets errno to ERANGE). With IEEE arithmetic, ties are + * broken by the IEEE round-even rule. Otherwise ties are broken by + * biased rounding (add half and chop). + * + * Inspired loosely by William D. Clinger's paper "How to Read Floating + * Point Numbers Accurately" [Proc. ACM SIGPLAN '90, pp. 92-101]. + * + * Modifications: + * + * 1. We only require IEEE, IBM, or VAX double-precision + * arithmetic (not IEEE double-extended). + * 2. We get by with floating-point arithmetic in a case that + * Clinger missed -- when we're computing d * 10^n + * for a small integer d and the integer n is not too + * much larger than 22 (the maximum integer k for which + * we can represent 10^k exactly), we may be able to + * compute (d*10^k) * 10^(e-k) with just one roundoff. + * 3. Rather than a bit-at-a-time adjustment of the binary + * result in the hard case, we use floating-point + * arithmetic to determine the adjustment to within + * one bit; only in really hard cases do we need to + * compute a second residual. + * 4. Because of 3., we don't need a large table of powers of 10 + * for ten-to-e (just some small tables, e.g. of 10^k + * for 0 <= k <= 22). + */ + +/* + * #define IEEE_LITTLE_ENDIAN for IEEE-arithmetic machines where the least + * significant byte has the lowest address. + * #define IEEE_BIG_ENDIAN for IEEE-arithmetic machines where the most + * significant byte has the lowest address. + * #define Long int on machines with 32-bit ints and 64-bit longs. + * #define Sudden_Underflow for IEEE-format machines without gradual + * underflow (i.e., that flush to zero on underflow). + * #define IBM for IBM mainframe-style floating-point arithmetic. + * #define VAX for VAX-style floating-point arithmetic. + * #define Unsigned_Shifts if >> does treats its left operand as unsigned. + * #define No_leftright to omit left-right logic in fast floating-point + * computation of dtoa. + * #define Check_FLT_ROUNDS if FLT_ROUNDS can assume the values 2 or 3. + * #define RND_PRODQUOT to use rnd_prod and rnd_quot (assembly routines + * that use extended-precision instructions to compute rounded + * products and quotients) with IBM. + * #define ROUND_BIASED for IEEE-format with biased rounding. + * #define Inaccurate_Divide for IEEE-format with correctly rounded + * products but inaccurate quotients, e.g., for Intel i860. + * #define Just_16 to store 16 bits per 32-bit Long when doing high-precision + * integer arithmetic. Whether this speeds things up or slows things + * down depends on the machine and the number being converted. + * #define KR_headers for old-style C function headers. + * #define Bad_float_h if your system lacks a float.h or if it does not + * define some or all of DBL_DIG, DBL_MAX_10_EXP, DBL_MAX_EXP, + * FLT_RADIX, FLT_ROUNDS, and DBL_MAX. + * #define MALLOC your_malloc, where your_malloc(n) acts like malloc(n) + * if memory is available and otherwise does something you deem + * appropriate. If MALLOC is undefined, malloc will be invoked + * directly -- and assumed always to succeed. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: strtod.c,v 1.26 1998/02/03 18:44:21 perry Exp $"); +#endif /* LIBC_SCCS and not lint */ + +/* +#if defined(__m68k__) || defined(__sparc__) || defined(__i386__) || \ + defined(__mips__) || defined(__ns32k__) || defined(__alpha__) || \ + defined(__powerpc__) || defined(Q_OS_WIN) || defined(Q_OS_DARWIN) || defined(Q_OS_MAC) || \ + defined(mips) || defined(Q_OS_AIX) || defined(Q_OS_SOLARIS) +# define IEEE_BIG_OR_LITTLE_ENDIAN 1 +#endif +*/ + +// *All* of our architectures have IEEE arithmetic, don't they? +#define IEEE_BIG_OR_LITTLE_ENDIAN 1 + +#ifdef __arm32__ +/* + * Although the CPU is little endian the FP has different + * byte and word endianness. The byte order is still little endian + * but the word order is big endian. + */ +#define IEEE_BIG_OR_LITTLE_ENDIAN +#endif + +#ifdef vax +#define VAX +#endif + +#define Long qint32 +#define ULong quint32 + +#define MALLOC malloc + +#ifdef BSD_QDTOA_DEBUG +QT_BEGIN_INCLUDE_NAMESPACE +#include <stdio.h> +QT_END_INCLUDE_NAMESPACE + +#define Bug(x) {fprintf(stderr, "%s\n", x); exit(1);} +#endif + +#ifdef Unsigned_Shifts +#define Sign_Extend(a,b) if (b < 0) a |= 0xffff0000; +#else +#define Sign_Extend(a,b) /*no-op*/ +#endif + +#if (defined(IEEE_BIG_OR_LITTLE_ENDIAN) + defined(VAX) + defined(IBM)) != 1 +#error Exactly one of IEEE_BIG_OR_LITTLE_ENDIAN, VAX, or IBM should be defined. +#endif + +static inline ULong _getWord0(const NEEDS_VOLATILE double x) +{ + const NEEDS_VOLATILE uchar *ptr = reinterpret_cast<const NEEDS_VOLATILE uchar *>(&x); + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3]; + } else { + return (ptr[7]<<24) + (ptr[6]<<16) + (ptr[5]<<8) + ptr[4]; + } +} + +static inline void _setWord0(NEEDS_VOLATILE double *x, ULong l) +{ + NEEDS_VOLATILE uchar *ptr = reinterpret_cast<NEEDS_VOLATILE uchar *>(x); + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + ptr[0] = uchar(l>>24); + ptr[1] = uchar(l>>16); + ptr[2] = uchar(l>>8); + ptr[3] = uchar(l); + } else { + ptr[7] = uchar(l>>24); + ptr[6] = uchar(l>>16); + ptr[5] = uchar(l>>8); + ptr[4] = uchar(l); + } +} + +static inline ULong _getWord1(const NEEDS_VOLATILE double x) +{ + const NEEDS_VOLATILE uchar *ptr = reinterpret_cast<const NEEDS_VOLATILE uchar *>(&x); + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + return (ptr[4]<<24) + (ptr[5]<<16) + (ptr[6]<<8) + ptr[7]; + } else { + return (ptr[3]<<24) + (ptr[2]<<16) + (ptr[1]<<8) + ptr[0]; + } +} +static inline void _setWord1(NEEDS_VOLATILE double *x, ULong l) +{ + NEEDS_VOLATILE uchar *ptr = reinterpret_cast<uchar NEEDS_VOLATILE *>(x); + if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { + ptr[4] = uchar(l>>24); + ptr[5] = uchar(l>>16); + ptr[6] = uchar(l>>8); + ptr[7] = uchar(l); + } else { + ptr[3] = uchar(l>>24); + ptr[2] = uchar(l>>16); + ptr[1] = uchar(l>>8); + ptr[0] = uchar(l); + } +} + +static inline ULong getWord0(const NEEDS_VOLATILE double x) +{ +#ifdef QT_ARMFPA + return _getWord1(x); +#else + return _getWord0(x); +#endif +} + +static inline void setWord0(NEEDS_VOLATILE double *x, ULong l) +{ +#ifdef QT_ARMFPA + _setWord1(x, l); +#else + _setWord0(x, l); +#endif +} + +static inline ULong getWord1(const NEEDS_VOLATILE double x) +{ +#ifdef QT_ARMFPA + return _getWord0(x); +#else + return _getWord1(x); +#endif +} + +static inline void setWord1(NEEDS_VOLATILE double *x, ULong l) +{ +#ifdef QT_ARMFPA + _setWord0(x, l); +#else + _setWord1(x, l); +#endif +} + +static inline void Storeinc(ULong *&a, const ULong &b, const ULong &c) +{ + + *a = (ushort(b) << 16) | ushort(c); + ++a; +} + +/* #define P DBL_MANT_DIG */ +/* Ten_pmax = floor(P*log(2)/log(5)) */ +/* Bletch = (highest power of 2 < DBL_MAX_10_EXP) / 16 */ +/* Quick_max = floor((P-1)*log(FLT_RADIX)/log(10) - 1) */ +/* Int_max = floor(P*log(FLT_RADIX)/log(10) - 1) */ + +#if defined(IEEE_BIG_OR_LITTLE_ENDIAN) +#define Exp_shift 20 +#define Exp_shift1 20 +#define Exp_msk1 0x100000 +#define Exp_msk11 0x100000 +#define Exp_mask 0x7ff00000 +#define P 53 +#define Bias 1023 +#define IEEE_Arith +#define Emin (-1022) +#define Exp_1 0x3ff00000 +#define Exp_11 0x3ff00000 +#define Ebits 11 +#define Frac_mask 0xfffff +#define Frac_mask1 0xfffff +#define Ten_pmax 22 +#define Bletch 0x10 +#define Bndry_mask 0xfffff +#define Bndry_mask1 0xfffff +#define LSB 1 +#define Sign_bit 0x80000000 +#define Log2P 1 +#define Tiny0 0 +#define Tiny1 1 +#define Quick_max 14 +#define Int_max 14 +#define Infinite(x) (getWord0(x) == 0x7ff00000) /* sufficient test for here */ +#else +#undef Sudden_Underflow +#define Sudden_Underflow +#ifdef IBM +#define Exp_shift 24 +#define Exp_shift1 24 +#define Exp_msk1 0x1000000 +#define Exp_msk11 0x1000000 +#define Exp_mask 0x7f000000 +#define P 14 +#define Bias 65 +#define Exp_1 0x41000000 +#define Exp_11 0x41000000 +#define Ebits 8 /* exponent has 7 bits, but 8 is the right value in b2d */ +#define Frac_mask 0xffffff +#define Frac_mask1 0xffffff +#define Bletch 4 +#define Ten_pmax 22 +#define Bndry_mask 0xefffff +#define Bndry_mask1 0xffffff +#define LSB 1 +#define Sign_bit 0x80000000 +#define Log2P 4 +#define Tiny0 0x100000 +#define Tiny1 0 +#define Quick_max 14 +#define Int_max 15 +#else /* VAX */ +#define Exp_shift 23 +#define Exp_shift1 7 +#define Exp_msk1 0x80 +#define Exp_msk11 0x800000 +#define Exp_mask 0x7f80 +#define P 56 +#define Bias 129 +#define Exp_1 0x40800000 +#define Exp_11 0x4080 +#define Ebits 8 +#define Frac_mask 0x7fffff +#define Frac_mask1 0xffff007f +#define Ten_pmax 24 +#define Bletch 2 +#define Bndry_mask 0xffff007f +#define Bndry_mask1 0xffff007f +#define LSB 0x10000 +#define Sign_bit 0x8000 +#define Log2P 1 +#define Tiny0 0x80 +#define Tiny1 0 +#define Quick_max 15 +#define Int_max 15 +#endif +#endif + +#ifndef IEEE_Arith +#define ROUND_BIASED +#endif + +#ifdef RND_PRODQUOT +#define rounded_product(a,b) a = rnd_prod(a, b) +#define rounded_quotient(a,b) a = rnd_quot(a, b) +extern double rnd_prod(double, double), rnd_quot(double, double); +#else +#define rounded_product(a,b) a *= b +#define rounded_quotient(a,b) a /= b +#endif + +#define Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1)) +#define Big1 0xffffffff + +#ifndef Just_16 +/* When Pack_32 is not defined, we store 16 bits per 32-bit Long. + * This makes some inner loops simpler and sometimes saves work + * during multiplications, but it often seems to make things slightly + * slower. Hence the default is now to store 32 bits per Long. + */ +#ifndef Pack_32 +#define Pack_32 +#endif +#endif + +#define Kmax 15 + +struct +Bigint { + struct Bigint *next; + int k, maxwds, sign, wds; + ULong x[1]; +}; + + typedef struct Bigint Bigint; + +static Bigint *Balloc(int k) +{ + int x; + Bigint *rv; + + x = 1 << k; + rv = static_cast<Bigint *>(MALLOC(sizeof(Bigint) + (x-1)*sizeof(Long))); + rv->k = k; + rv->maxwds = x; + rv->sign = rv->wds = 0; + return rv; +} + +static void Bfree(Bigint *v) +{ + free(v); +} + +#define Bcopy(x,y) memcpy(reinterpret_cast<char *>(&x->sign), reinterpret_cast<char *>(&y->sign), \ +y->wds*sizeof(Long) + 2*sizeof(int)) + +/* multiply by m and add a */ +static Bigint *multadd(Bigint *b, int m, int a) +{ + int i, wds; + ULong *x, y; +#ifdef Pack_32 + ULong xi, z; +#endif + Bigint *b1; + + wds = b->wds; + x = b->x; + i = 0; + do { +#ifdef Pack_32 + xi = *x; + y = (xi & 0xffff) * m + a; + z = (xi >> 16) * m + (y >> 16); + a = (z >> 16); + *x++ = (z << 16) + (y & 0xffff); +#else + y = *x * m + a; + a = (y >> 16); + *x++ = y & 0xffff; +#endif + } + while(++i < wds); + if (a) { + if (wds >= b->maxwds) { + b1 = Balloc(b->k+1); + Bcopy(b1, b); + Bfree(b); + b = b1; + } + b->x[wds++] = a; + b->wds = wds; + } + return b; +} + +static Bigint *s2b(const char *s, int nd0, int nd, ULong y9) +{ + Bigint *b; + int i, k; + Long x, y; + + x = (nd + 8) / 9; + for(k = 0, y = 1; x > y; y <<= 1, k++) ; +#ifdef Pack_32 + b = Balloc(k); + b->x[0] = y9; + b->wds = 1; +#else + b = Balloc(k+1); + b->x[0] = y9 & 0xffff; + b->wds = (b->x[1] = y9 >> 16) ? 2 : 1; +#endif + + i = 9; + if (9 < nd0) { + s += 9; + do b = multadd(b, 10, *s++ - '0'); + while(++i < nd0); + s++; + } + else + s += 10; + for(; i < nd; i++) + b = multadd(b, 10, *s++ - '0'); + return b; +} + +static int hi0bits(ULong x) +{ + int k = 0; + + if (!(x & 0xffff0000)) { + k = 16; + x <<= 16; + } + if (!(x & 0xff000000)) { + k += 8; + x <<= 8; + } + if (!(x & 0xf0000000)) { + k += 4; + x <<= 4; + } + if (!(x & 0xc0000000)) { + k += 2; + x <<= 2; + } + if (!(x & 0x80000000)) { + k++; + if (!(x & 0x40000000)) + return 32; + } + return k; +} + +static int lo0bits(ULong *y) +{ + int k; + ULong x = *y; + + if (x & 7) { + if (x & 1) + return 0; + if (x & 2) { + *y = x >> 1; + return 1; + } + *y = x >> 2; + return 2; + } + k = 0; + if (!(x & 0xffff)) { + k = 16; + x >>= 16; + } + if (!(x & 0xff)) { + k += 8; + x >>= 8; + } + if (!(x & 0xf)) { + k += 4; + x >>= 4; + } + if (!(x & 0x3)) { + k += 2; + x >>= 2; + } + if (!(x & 1)) { + k++; + x >>= 1; + if (!x & 1) + return 32; + } + *y = x; + return k; +} + +static Bigint *i2b(int i) +{ + Bigint *b; + + b = Balloc(1); + b->x[0] = i; + b->wds = 1; + return b; +} + +static Bigint *mult(Bigint *a, Bigint *b) +{ + Bigint *c; + int k, wa, wb, wc; + ULong carry, y, z; + ULong *x, *xa, *xae, *xb, *xbe, *xc, *xc0; +#ifdef Pack_32 + ULong z2; +#endif + + if (a->wds < b->wds) { + c = a; + a = b; + b = c; + } + k = a->k; + wa = a->wds; + wb = b->wds; + wc = wa + wb; + if (wc > a->maxwds) + k++; + c = Balloc(k); + for(x = c->x, xa = x + wc; x < xa; x++) + *x = 0; + xa = a->x; + xae = xa + wa; + xb = b->x; + xbe = xb + wb; + xc0 = c->x; +#ifdef Pack_32 + for(; xb < xbe; xb++, xc0++) { + if ((y = *xb & 0xffff) != 0) { + x = xa; + xc = xc0; + carry = 0; + do { + z = (*x & 0xffff) * y + (*xc & 0xffff) + carry; + carry = z >> 16; + z2 = (*x++ >> 16) * y + (*xc >> 16) + carry; + carry = z2 >> 16; + Storeinc(xc, z2, z); + } + while(x < xae); + *xc = carry; + } + if ((y = *xb >> 16) != 0) { + x = xa; + xc = xc0; + carry = 0; + z2 = *xc; + do { + z = (*x & 0xffff) * y + (*xc >> 16) + carry; + carry = z >> 16; + Storeinc(xc, z, z2); + z2 = (*x++ >> 16) * y + (*xc & 0xffff) + carry; + carry = z2 >> 16; + } + while(x < xae); + *xc = z2; + } + } +#else + for(; xb < xbe; xc0++) { + if (y = *xb++) { + x = xa; + xc = xc0; + carry = 0; + do { + z = *x++ * y + *xc + carry; + carry = z >> 16; + *xc++ = z & 0xffff; + } + while(x < xae); + *xc = carry; + } + } +#endif + for(xc0 = c->x, xc = xc0 + wc; wc > 0 && !*--xc; --wc) ; + c->wds = wc; + return c; +} + +static Bigint *p5s; + +static Bigint *pow5mult(Bigint *b, int k) +{ + Bigint *b1, *p5, *p51; + int i; + static const int p05[3] = { 5, 25, 125 }; + + if ((i = k & 3) != 0) +#if defined(Q_OS_IRIX) && defined(Q_CC_GNU) + { + // work around a bug on 64 bit IRIX gcc + int *p = (int *) p05; + b = multadd(b, p[i-1], 0); + } +#else + b = multadd(b, p05[i-1], 0); +#endif + + if (!(k >>= 2)) + return b; + if (!(p5 = p5s)) { + /* first time */ + p5 = p5s = i2b(625); + p5->next = 0; + } + for(;;) { + if (k & 1) { + b1 = mult(b, p5); + Bfree(b); + b = b1; + } + if (!(k >>= 1)) + break; + if (!(p51 = p5->next)) { + p51 = p5->next = mult(p5,p5); + p51->next = 0; + } + p5 = p51; + } + return b; +} + +static Bigint *lshift(Bigint *b, int k) +{ + int i, k1, n, n1; + Bigint *b1; + ULong *x, *x1, *xe, z; + +#ifdef Pack_32 + n = k >> 5; +#else + n = k >> 4; +#endif + k1 = b->k; + n1 = n + b->wds + 1; + for(i = b->maxwds; n1 > i; i <<= 1) + k1++; + b1 = Balloc(k1); + x1 = b1->x; + for(i = 0; i < n; i++) + *x1++ = 0; + x = b->x; + xe = x + b->wds; +#ifdef Pack_32 + if (k &= 0x1f) { + k1 = 32 - k; + z = 0; + do { + *x1++ = *x << k | z; + z = *x++ >> k1; + } + while(x < xe); + if ((*x1 = z) != 0) + ++n1; + } +#else + if (k &= 0xf) { + k1 = 16 - k; + z = 0; + do { + *x1++ = *x << k & 0xffff | z; + z = *x++ >> k1; + } + while(x < xe); + if (*x1 = z) + ++n1; + } +#endif + else do + *x1++ = *x++; + while(x < xe); + b1->wds = n1 - 1; + Bfree(b); + return b1; +} + +static int cmp(Bigint *a, Bigint *b) +{ + ULong *xa, *xa0, *xb, *xb0; + int i, j; + + i = a->wds; + j = b->wds; +#ifdef BSD_QDTOA_DEBUG + if (i > 1 && !a->x[i-1]) + Bug("cmp called with a->x[a->wds-1] == 0"); + if (j > 1 && !b->x[j-1]) + Bug("cmp called with b->x[b->wds-1] == 0"); +#endif + if (i -= j) + return i; + xa0 = a->x; + xa = xa0 + j; + xb0 = b->x; + xb = xb0 + j; + for(;;) { + if (*--xa != *--xb) + return *xa < *xb ? -1 : 1; + if (xa <= xa0) + break; + } + return 0; +} + +static Bigint *diff(Bigint *a, Bigint *b) +{ + Bigint *c; + int i, wa, wb; + Long borrow, y; /* We need signed shifts here. */ + ULong *xa, *xae, *xb, *xbe, *xc; +#ifdef Pack_32 + Long z; +#endif + + i = cmp(a,b); + if (!i) { + c = Balloc(0); + c->wds = 1; + c->x[0] = 0; + return c; + } + if (i < 0) { + c = a; + a = b; + b = c; + i = 1; + } + else + i = 0; + c = Balloc(a->k); + c->sign = i; + wa = a->wds; + xa = a->x; + xae = xa + wa; + wb = b->wds; + xb = b->x; + xbe = xb + wb; + xc = c->x; + borrow = 0; +#ifdef Pack_32 + do { + y = (*xa & 0xffff) - (*xb & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + z = (*xa++ >> 16) - (*xb++ >> 16) + borrow; + borrow = z >> 16; + Sign_Extend(borrow, z); + Storeinc(xc, z, y); + } + while(xb < xbe); + while(xa < xae) { + y = (*xa & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + z = (*xa++ >> 16) + borrow; + borrow = z >> 16; + Sign_Extend(borrow, z); + Storeinc(xc, z, y); + } +#else + do { + y = *xa++ - *xb++ + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + *xc++ = y & 0xffff; + } + while(xb < xbe); + while(xa < xae) { + y = *xa++ + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + *xc++ = y & 0xffff; + } +#endif + while(!*--xc) + wa--; + c->wds = wa; + return c; +} + +static double ulp(double x) +{ + Long L; + double a; + + L = (getWord0(x) & Exp_mask) - (P-1)*Exp_msk1; +#ifndef Sudden_Underflow + if (L > 0) { +#endif +#ifdef IBM + L |= Exp_msk1 >> 4; +#endif + setWord0(&a, L); + setWord1(&a, 0); +#ifndef Sudden_Underflow + } + else { + L = -L >> Exp_shift; + if (L < Exp_shift) { + setWord0(&a, 0x80000 >> L); + setWord1(&a, 0); + } + else { + setWord0(&a, 0); + L -= Exp_shift; + setWord1(&a, L >= 31 ? 1U : 1U << (31 - L)); + } + } +#endif + return a; +} + +static double b2d(Bigint *a, int *e) +{ + ULong *xa, *xa0, w, y, z; + int k; + double d; + + xa0 = a->x; + xa = xa0 + a->wds; + y = *--xa; +#ifdef BSD_QDTOA_DEBUG + if (!y) Bug("zero y in b2d"); +#endif + k = hi0bits(y); + *e = 32 - k; +#ifdef Pack_32 + if (k < Ebits) { + setWord0(&d, Exp_1 | y >> (Ebits - k)); + w = xa > xa0 ? *--xa : 0; + setWord1(&d, y << ((32-Ebits) + k) | w >> (Ebits - k)); + goto ret_d; + } + z = xa > xa0 ? *--xa : 0; + if (k -= Ebits) { + setWord0(&d, Exp_1 | y << k | z >> (32 - k)); + y = xa > xa0 ? *--xa : 0; + setWord1(&d, z << k | y >> (32 - k)); + } + else { + setWord0(&d, Exp_1 | y); + setWord1(&d, z); + } +#else + if (k < Ebits + 16) { + z = xa > xa0 ? *--xa : 0; + setWord0(&d, Exp_1 | y << k - Ebits | z >> Ebits + 16 - k); + w = xa > xa0 ? *--xa : 0; + y = xa > xa0 ? *--xa : 0; + setWord1(&d, z << k + 16 - Ebits | w << k - Ebits | y >> 16 + Ebits - k); + goto ret_d; + } + z = xa > xa0 ? *--xa : 0; + w = xa > xa0 ? *--xa : 0; + k -= Ebits + 16; + setWord0(&d, Exp_1 | y << k + 16 | z << k | w >> 16 - k); + y = xa > xa0 ? *--xa : 0; + setWord1(&d, w << k + 16 | y << k); +#endif + ret_d: + return d; +} + +static Bigint *d2b(double d, int *e, int *bits) +{ + Bigint *b; + int de, i, k; + ULong *x, y, z; + +#ifdef Pack_32 + b = Balloc(1); +#else + b = Balloc(2); +#endif + x = b->x; + + z = getWord0(d) & Frac_mask; + setWord0(&d, getWord0(d) & 0x7fffffff); /* clear sign bit, which we ignore */ +#ifdef Sudden_Underflow + de = (int)(getWord0(d) >> Exp_shift); +#ifndef IBM + z |= Exp_msk11; +#endif +#else + if ((de = int(getWord0(d) >> Exp_shift)) != 0) + z |= Exp_msk1; +#endif +#ifdef Pack_32 + if ((y = getWord1(d)) != 0) { + if ((k = lo0bits(&y)) != 0) { + x[0] = y | z << (32 - k); + z >>= k; + } + else + x[0] = y; + i = b->wds = (x[1] = z) ? 2 : 1; + } + else { +#ifdef BSD_QDTOA_DEBUG + if (!z) + Bug("Zero passed to d2b"); +#endif + k = lo0bits(&z); + x[0] = z; + i = b->wds = 1; + k += 32; + } +#else + if (y = getWord1(d)) { + if (k = lo0bits(&y)) + if (k >= 16) { + x[0] = y | z << 32 - k & 0xffff; + x[1] = z >> k - 16 & 0xffff; + x[2] = z >> k; + i = 2; + } + else { + x[0] = y & 0xffff; + x[1] = y >> 16 | z << 16 - k & 0xffff; + x[2] = z >> k & 0xffff; + x[3] = z >> k+16; + i = 3; + } + else { + x[0] = y & 0xffff; + x[1] = y >> 16; + x[2] = z & 0xffff; + x[3] = z >> 16; + i = 3; + } + } + else { +#ifdef BSD_QDTOA_DEBUG + if (!z) + Bug("Zero passed to d2b"); +#endif + k = lo0bits(&z); + if (k >= 16) { + x[0] = z; + i = 0; + } + else { + x[0] = z & 0xffff; + x[1] = z >> 16; + i = 1; + } + k += 32; + } + while(!x[i]) + --i; + b->wds = i + 1; +#endif +#ifndef Sudden_Underflow + if (de) { +#endif +#ifdef IBM + *e = (de - Bias - (P-1) << 2) + k; + *bits = 4*P + 8 - k - hi0bits(getWord0(d) & Frac_mask); +#else + *e = de - Bias - (P-1) + k; + *bits = P - k; +#endif +#ifndef Sudden_Underflow + } + else { + *e = de - Bias - (P-1) + 1 + k; +#ifdef Pack_32 + *bits = 32*i - hi0bits(x[i-1]); +#else + *bits = (i+2)*16 - hi0bits(x[i]); +#endif + } +#endif + return b; +} + +static double ratio(Bigint *a, Bigint *b) +{ + double da, db; + int k, ka, kb; + + da = b2d(a, &ka); + db = b2d(b, &kb); +#ifdef Pack_32 + k = ka - kb + 32*(a->wds - b->wds); +#else + k = ka - kb + 16*(a->wds - b->wds); +#endif +#ifdef IBM + if (k > 0) { + setWord0(&da, getWord0(da) + (k >> 2)*Exp_msk1); + if (k &= 3) + da *= 1 << k; + } + else { + k = -k; + setWord0(&db, getWord0(db) + (k >> 2)*Exp_msk1); + if (k &= 3) + db *= 1 << k; + } +#else + if (k > 0) + setWord0(&da, getWord0(da) + k*Exp_msk1); + else { + k = -k; + setWord0(&db, getWord0(db) + k*Exp_msk1); + } +#endif + return da / db; +} + +static const double tens[] = { + 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, + 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, + 1e20, 1e21, 1e22 +#ifdef VAX + , 1e23, 1e24 +#endif +}; + +#ifdef IEEE_Arith +static const double bigtens[] = { 1e16, 1e32, 1e64, 1e128, 1e256 }; +static const double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, 1e-256 }; +#define n_bigtens 5 +#else +#ifdef IBM +static const double bigtens[] = { 1e16, 1e32, 1e64 }; +static const double tinytens[] = { 1e-16, 1e-32, 1e-64 }; +#define n_bigtens 3 +#else +static const double bigtens[] = { 1e16, 1e32 }; +static const double tinytens[] = { 1e-16, 1e-32 }; +#define n_bigtens 2 +#endif +#endif + +/* + The pre-release gcc3.3 shipped with SuSE 8.2 has a bug which causes + the comparison 1e-100 == 0.0 to return true. As a workaround, we + compare it to a global variable containing 0.0, which produces + correct assembler output. + + ### consider detecting the broken compilers and using the static + ### double for these, and use a #define for all working compilers +*/ +static double g_double_zero = 0.0; + +Q_CORE_EXPORT double qstrtod(const char *s00, const char **se, bool *ok) +{ + int bb2, bb5, bbe, bd2, bd5, bbbits, bs2, c, dsign, + e, e1, esign, i, j, k, nd, nd0, nf, nz, nz0, sign; + const char *s, *s0, *s1; + double aadj, aadj1, adj, rv, rv0; + Long L; + ULong y, z; + Bigint *bb1, *bd0; + Bigint *bb = NULL, *bd = NULL, *bs = NULL, *delta = NULL;/* pacify gcc */ + + /* + #ifndef KR_headers + const char decimal_point = localeconv()->decimal_point[0]; + #else + const char decimal_point = '.'; + #endif */ + if (ok != 0) + *ok = true; + + const char decimal_point = '.'; + + sign = nz0 = nz = 0; + rv = 0.; + + + for(s = s00; isspace(uchar(*s)); s++) + ; + + if (*s == '-') { + sign = 1; + s++; + } else if (*s == '+') { + s++; + } + + if (*s == '\0') { + s = s00; + goto ret; + } + + if (*s == '0') { + nz0 = 1; + while(*++s == '0') ; + if (!*s) + goto ret; + } + s0 = s; + y = z = 0; + for(nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++) + if (nd < 9) + y = 10*y + c - '0'; + else if (nd < 16) + z = 10*z + c - '0'; + nd0 = nd; + if (c == decimal_point) { + c = *++s; + if (!nd) { + for(; c == '0'; c = *++s) + nz++; + if (c > '0' && c <= '9') { + s0 = s; + nf += nz; + nz = 0; + goto have_dig; + } + goto dig_done; + } + for(; c >= '0' && c <= '9'; c = *++s) { + have_dig: + nz++; + if (c -= '0') { + nf += nz; + for(i = 1; i < nz; i++) + if (nd++ < 9) + y *= 10; + else if (nd <= DBL_DIG + 1) + z *= 10; + if (nd++ < 9) + y = 10*y + c; + else if (nd <= DBL_DIG + 1) + z = 10*z + c; + nz = 0; + } + } + } + dig_done: + e = 0; + if (c == 'e' || c == 'E') { + if (!nd && !nz && !nz0) { + s = s00; + goto ret; + } + s00 = s; + esign = 0; + switch(c = *++s) { + case '-': + esign = 1; + case '+': + c = *++s; + } + if (c >= '0' && c <= '9') { + while(c == '0') + c = *++s; + if (c > '0' && c <= '9') { + L = c - '0'; + s1 = s; + while((c = *++s) >= '0' && c <= '9') + L = 10*L + c - '0'; + if (s - s1 > 8 || L > 19999) + /* Avoid confusion from exponents + * so large that e might overflow. + */ + e = 19999; /* safe for 16 bit ints */ + else + e = int(L); + if (esign) + e = -e; + } + else + e = 0; + } + else + s = s00; + } + if (!nd) { + if (!nz && !nz0) + s = s00; + goto ret; + } + e1 = e -= nf; + + /* Now we have nd0 digits, starting at s0, followed by a + * decimal point, followed by nd-nd0 digits. The number we're + * after is the integer represented by those digits times + * 10**e */ + + if (!nd0) + nd0 = nd; + k = nd < DBL_DIG + 1 ? nd : DBL_DIG + 1; + rv = y; + if (k > 9) +#if defined(Q_OS_IRIX) && defined(Q_CC_GNU) + { + // work around a bug on 64 bit IRIX gcc + double *t = (double *) tens; + rv = t[k - 9] * rv + z; + } +#else + rv = tens[k - 9] * rv + z; +#endif + + bd0 = 0; + if (nd <= DBL_DIG +#ifndef RND_PRODQUOT + && FLT_ROUNDS == 1 +#endif + ) { + if (!e) + goto ret; + if (e > 0) { + if (e <= Ten_pmax) { +#ifdef VAX + goto vax_ovfl_check; +#else + /* rv = */ rounded_product(rv, tens[e]); + goto ret; +#endif + } + i = DBL_DIG - nd; + if (e <= Ten_pmax + i) { + /* A fancier test would sometimes let us do + * this for larger i values. + */ + e -= i; + rv *= tens[i]; +#ifdef VAX + /* VAX exponent range is so narrow we must + * worry about overflow here... + */ + vax_ovfl_check: + setWord0(&rv, getWord0(rv) - P*Exp_msk1); + /* rv = */ rounded_product(rv, tens[e]); + if ((getWord0(rv) & Exp_mask) + > Exp_msk1*(DBL_MAX_EXP+Bias-1-P)) + goto ovfl; + setWord0(&rv, getWord0(rv) + P*Exp_msk1); +#else + /* rv = */ rounded_product(rv, tens[e]); +#endif + goto ret; + } + } +#ifndef Inaccurate_Divide + else if (e >= -Ten_pmax) { + /* rv = */ rounded_quotient(rv, tens[-e]); + goto ret; + } +#endif + } + e1 += nd - k; + + /* Get starting approximation = rv * 10**e1 */ + + if (e1 > 0) { + if ((i = e1 & 15) != 0) + rv *= tens[i]; + if (e1 &= ~15) { + if (e1 > DBL_MAX_10_EXP) { + ovfl: + // errno = ERANGE; + if (ok != 0) + *ok = false; +#ifdef __STDC__ + rv = HUGE_VAL; +#else + /* Can't trust HUGE_VAL */ +#ifdef IEEE_Arith + setWord0(&rv, Exp_mask); + setWord1(&rv, 0); +#else + setWord0(&rv, Big0); + setWord1(&rv, Big1); +#endif +#endif + if (bd0) + goto retfree; + goto ret; + } + if (e1 >>= 4) { + for(j = 0; e1 > 1; j++, e1 >>= 1) + if (e1 & 1) + rv *= bigtens[j]; + /* The last multiplication could overflow. */ + setWord0(&rv, getWord0(rv) - P*Exp_msk1); + rv *= bigtens[j]; + if ((z = getWord0(rv) & Exp_mask) + > Exp_msk1*(DBL_MAX_EXP+Bias-P)) + goto ovfl; + if (z > Exp_msk1*(DBL_MAX_EXP+Bias-1-P)) { + /* set to largest number */ + /* (Can't trust DBL_MAX) */ + setWord0(&rv, Big0); + setWord1(&rv, Big1); + } + else + setWord0(&rv, getWord0(rv) + P*Exp_msk1); + } + + } + } + else if (e1 < 0) { + e1 = -e1; + if ((i = e1 & 15) != 0) + rv /= tens[i]; + if (e1 &= ~15) { + e1 >>= 4; + if (e1 >= 1 << n_bigtens) + goto undfl; + for(j = 0; e1 > 1; j++, e1 >>= 1) + if (e1 & 1) + rv *= tinytens[j]; + /* The last multiplication could underflow. */ + rv0 = rv; + rv *= tinytens[j]; + if (rv == g_double_zero) + { + rv = 2.*rv0; + rv *= tinytens[j]; + if (rv == g_double_zero) + { + undfl: + rv = 0.; + // errno = ERANGE; + if (ok != 0) + *ok = false; + if (bd0) + goto retfree; + goto ret; + } + setWord0(&rv, Tiny0); + setWord1(&rv, Tiny1); + /* The refinement below will clean + * this approximation up. + */ + } + } + } + + /* Now the hard part -- adjusting rv to the correct value.*/ + + /* Put digits into bd: true value = bd * 10^e */ + + bd0 = s2b(s0, nd0, nd, y); + + for(;;) { + bd = Balloc(bd0->k); + Bcopy(bd, bd0); + bb = d2b(rv, &bbe, &bbbits); /* rv = bb * 2^bbe */ + bs = i2b(1); + + if (e >= 0) { + bb2 = bb5 = 0; + bd2 = bd5 = e; + } + else { + bb2 = bb5 = -e; + bd2 = bd5 = 0; + } + if (bbe >= 0) + bb2 += bbe; + else + bd2 -= bbe; + bs2 = bb2; +#ifdef Sudden_Underflow +#ifdef IBM + j = 1 + 4*P - 3 - bbbits + ((bbe + bbbits - 1) & 3); +#else + j = P + 1 - bbbits; +#endif +#else + i = bbe + bbbits - 1; /* logb(rv) */ + if (i < Emin) /* denormal */ + j = bbe + (P-Emin); + else + j = P + 1 - bbbits; +#endif + bb2 += j; + bd2 += j; + i = bb2 < bd2 ? bb2 : bd2; + if (i > bs2) + i = bs2; + if (i > 0) { + bb2 -= i; + bd2 -= i; + bs2 -= i; + } + if (bb5 > 0) { + bs = pow5mult(bs, bb5); + bb1 = mult(bs, bb); + Bfree(bb); + bb = bb1; + } + if (bb2 > 0) + bb = lshift(bb, bb2); + if (bd5 > 0) + bd = pow5mult(bd, bd5); + if (bd2 > 0) + bd = lshift(bd, bd2); + if (bs2 > 0) + bs = lshift(bs, bs2); + delta = diff(bb, bd); + dsign = delta->sign; + delta->sign = 0; + i = cmp(delta, bs); + if (i < 0) { + /* Error is less than half an ulp -- check for + * special case of mantissa a power of two. + */ + if (dsign || getWord1(rv) || getWord0(rv) & Bndry_mask) + break; + delta = lshift(delta,Log2P); + if (cmp(delta, bs) > 0) + goto drop_down; + break; + } + if (i == 0) { + /* exactly half-way between */ + if (dsign) { + if ((getWord0(rv) & Bndry_mask1) == Bndry_mask1 + && getWord1(rv) == 0xffffffff) { + /*boundary case -- increment exponent*/ + setWord0(&rv, (getWord0(rv) & Exp_mask) + + Exp_msk1 +#ifdef IBM + | Exp_msk1 >> 4 +#endif + ); + setWord1(&rv, 0); + break; + } + } + else if (!(getWord0(rv) & Bndry_mask) && !getWord1(rv)) { + drop_down: + /* boundary case -- decrement exponent */ +#ifdef Sudden_Underflow + L = getWord0(rv) & Exp_mask; +#ifdef IBM + if (L < Exp_msk1) +#else + if (L <= Exp_msk1) +#endif + goto undfl; + L -= Exp_msk1; +#else + L = (getWord0(rv) & Exp_mask) - Exp_msk1; +#endif + setWord0(&rv, L | Bndry_mask1); + setWord1(&rv, 0xffffffff); +#ifdef IBM + goto cont; +#else + break; +#endif + } +#ifndef ROUND_BIASED + if (!(getWord1(rv) & LSB)) + break; +#endif + if (dsign) + rv += ulp(rv); +#ifndef ROUND_BIASED + else { + rv -= ulp(rv); +#ifndef Sudden_Underflow + if (rv == g_double_zero) + goto undfl; +#endif + } +#endif + break; + } + if ((aadj = ratio(delta, bs)) <= 2.) { + if (dsign) + aadj = aadj1 = 1.; + else if (getWord1(rv) || getWord0(rv) & Bndry_mask) { +#ifndef Sudden_Underflow + if (getWord1(rv) == Tiny1 && !getWord0(rv)) + goto undfl; +#endif + aadj = 1.; + aadj1 = -1.; + } + else { + /* special case -- power of FLT_RADIX to be */ + /* rounded down... */ + + if (aadj < 2./FLT_RADIX) + aadj = 1./FLT_RADIX; + else + aadj *= 0.5; + aadj1 = -aadj; + } + } + else { + aadj *= 0.5; + aadj1 = dsign ? aadj : -aadj; +#ifdef Check_FLT_ROUNDS + switch(FLT_ROUNDS) { + case 2: /* towards +infinity */ + aadj1 -= 0.5; + break; + case 0: /* towards 0 */ + case 3: /* towards -infinity */ + aadj1 += 0.5; + } +#else + if (FLT_ROUNDS == 0) + aadj1 += 0.5; +#endif + } + y = getWord0(rv) & Exp_mask; + + /* Check for overflow */ + + if (y == Exp_msk1*(DBL_MAX_EXP+Bias-1)) { + rv0 = rv; + setWord0(&rv, getWord0(rv) - P*Exp_msk1); + adj = aadj1 * ulp(rv); + rv += adj; + if ((getWord0(rv) & Exp_mask) >= + Exp_msk1*(DBL_MAX_EXP+Bias-P)) { + if (getWord0(rv0) == Big0 && getWord1(rv0) == Big1) + goto ovfl; + setWord0(&rv, Big0); + setWord1(&rv, Big1); + goto cont; + } + else + setWord0(&rv, getWord0(rv) + P*Exp_msk1); + } + else { +#ifdef Sudden_Underflow + if ((getWord0(rv) & Exp_mask) <= P*Exp_msk1) { + rv0 = rv; + setWord0(&rv, getWord0(rv) + P*Exp_msk1); + adj = aadj1 * ulp(rv); + rv += adj; +#ifdef IBM + if ((getWord0(rv) & Exp_mask) < P*Exp_msk1) +#else + if ((getWord0(rv) & Exp_mask) <= P*Exp_msk1) +#endif + { + if (getWord0(rv0) == Tiny0 + && getWord1(rv0) == Tiny1) + goto undfl; + setWord0(&rv, Tiny0); + setWord1(&rv, Tiny1); + goto cont; + } + else + setWord0(&rv, getWord0(rv) - P*Exp_msk1); + } + else { + adj = aadj1 * ulp(rv); + rv += adj; + } +#else + /* Compute adj so that the IEEE rounding rules will + * correctly round rv + adj in some half-way cases. + * If rv * ulp(rv) is denormalized (i.e., + * y <= (P-1)*Exp_msk1), we must adjust aadj to avoid + * trouble from bits lost to denormalization; + * example: 1.2e-307 . + */ + if (y <= (P-1)*Exp_msk1 && aadj >= 1.) { + aadj1 = int(aadj + 0.5); + if (!dsign) + aadj1 = -aadj1; + } + adj = aadj1 * ulp(rv); + rv += adj; +#endif + } + z = getWord0(rv) & Exp_mask; + if (y == z) { + /* Can we stop now? */ + L = Long(aadj); + aadj -= L; + /* The tolerances below are conservative. */ + if (dsign || getWord1(rv) || getWord0(rv) & Bndry_mask) { + if (aadj < .4999999 || aadj > .5000001) + break; + } + else if (aadj < .4999999/FLT_RADIX) + break; + } + cont: + Bfree(bb); + Bfree(bd); + Bfree(bs); + Bfree(delta); + } + retfree: + Bfree(bb); + Bfree(bd); + Bfree(bs); + Bfree(bd0); + Bfree(delta); + ret: + if (se) + *se = s; + return sign ? -rv : rv; +} + +static int quorem(Bigint *b, Bigint *S) +{ + int n; + Long borrow, y; + ULong carry, q, ys; + ULong *bx, *bxe, *sx, *sxe; +#ifdef Pack_32 + Long z; + ULong si, zs; +#endif + + n = S->wds; +#ifdef BSD_QDTOA_DEBUG + /*debug*/ if (b->wds > n) + /*debug*/ Bug("oversize b in quorem"); +#endif + if (b->wds < n) + return 0; + sx = S->x; + sxe = sx + --n; + bx = b->x; + bxe = bx + n; + q = *bxe / (*sxe + 1); /* ensure q <= true quotient */ +#ifdef BSD_QDTOA_DEBUG + /*debug*/ if (q > 9) + /*debug*/ Bug("oversized quotient in quorem"); +#endif + if (q) { + borrow = 0; + carry = 0; + do { +#ifdef Pack_32 + si = *sx++; + ys = (si & 0xffff) * q + carry; + zs = (si >> 16) * q + (ys >> 16); + carry = zs >> 16; + y = (*bx & 0xffff) - (ys & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + z = (*bx >> 16) - (zs & 0xffff) + borrow; + borrow = z >> 16; + Sign_Extend(borrow, z); + Storeinc(bx, z, y); +#else + ys = *sx++ * q + carry; + carry = ys >> 16; + y = *bx - (ys & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + *bx++ = y & 0xffff; +#endif + } + while(sx <= sxe); + if (!*bxe) { + bx = b->x; + while(--bxe > bx && !*bxe) + --n; + b->wds = n; + } + } + if (cmp(b, S) >= 0) { + q++; + borrow = 0; + carry = 0; + bx = b->x; + sx = S->x; + do { +#ifdef Pack_32 + si = *sx++; + ys = (si & 0xffff) + carry; + zs = (si >> 16) + (ys >> 16); + carry = zs >> 16; + y = (*bx & 0xffff) - (ys & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + z = (*bx >> 16) - (zs & 0xffff) + borrow; + borrow = z >> 16; + Sign_Extend(borrow, z); + Storeinc(bx, z, y); +#else + ys = *sx++ + carry; + carry = ys >> 16; + y = *bx - (ys & 0xffff) + borrow; + borrow = y >> 16; + Sign_Extend(borrow, y); + *bx++ = y & 0xffff; +#endif + } + while(sx <= sxe); + bx = b->x; + bxe = bx + n; + if (!*bxe) { + while(--bxe > bx && !*bxe) + --n; + b->wds = n; + } + } + return q; +} + +/* dtoa for IEEE arithmetic (dmg): convert double to ASCII string. + * + * Inspired by "How to Print Floating-Point Numbers Accurately" by + * Guy L. Steele, Jr. and Jon L. White [Proc. ACM SIGPLAN '90, pp. 92-101]. + * + * Modifications: + * 1. Rather than iterating, we use a simple numeric overestimate + * to determine k = floor(log10(d)). We scale relevant + * quantities using O(log2(k)) rather than O(k) multiplications. + * 2. For some modes > 2 (corresponding to ecvt and fcvt), we don't + * try to generate digits strictly left to right. Instead, we + * compute with fewer bits and propagate the carry if necessary + * when rounding the final digit up. This is often faster. + * 3. Under the assumption that input will be rounded nearest, + * mode 0 renders 1e23 as 1e23 rather than 9.999999999999999e22. + * That is, we allow equality in stopping tests when the + * round-nearest rule will give the same floating-point value + * as would satisfaction of the stopping test with strict + * inequality. + * 4. We remove common factors of powers of 2 from relevant + * quantities. + * 5. When converting floating-point integers less than 1e16, + * we use floating-point arithmetic rather than resorting + * to multiple-precision integers. + * 6. When asked to produce fewer than 15 digits, we first try + * to get by with floating-point arithmetic; we resort to + * multiple-precision integer arithmetic only if we cannot + * guarantee that the floating-point calculation has given + * the correctly rounded result. For k requested digits and + * "uniformly" distributed input, the probability is + * something like 10^(k-15) that we must resort to the Long + * calculation. + */ + + +/* This actually sometimes returns a pointer to a string literal + cast to a char*. Do NOT try to modify the return value. */ + +Q_CORE_EXPORT char *qdtoa ( double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp) +{ + // Some values of the floating-point control word can cause _qdtoa to crash with an underflow. + // We set a safe value here. +#ifdef Q_OS_WIN + _clear87(); + unsigned int oldbits = _control87(0, 0); +#ifndef MCW_EM +# ifdef _MCW_EM +# define MCW_EM _MCW_EM +# else +# define MCW_EM 0x0008001F +# endif +#endif + _control87(MCW_EM, MCW_EM); +#endif + +#if defined(Q_OS_LINUX) && !defined(__UCLIBC__) + fenv_t envp; + feholdexcept(&envp); +#endif + + char *s = _qdtoa(d, mode, ndigits, decpt, sign, rve, resultp); + +#ifdef Q_OS_WIN + _clear87(); +#ifndef _M_X64 + _control87(oldbits, 0xFFFFF); +#else + _control87(oldbits, _MCW_EM|_MCW_DN|_MCW_RC); +#endif //_M_X64 +#endif //Q_OS_WIN + +#if defined(Q_OS_LINUX) && !defined(__UCLIBC__) + fesetenv(&envp); +#endif + + return s; +} + +static char *_qdtoa( NEEDS_VOLATILE double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp) +{ + /* + Arguments ndigits, decpt, sign are similar to those + of ecvt and fcvt; trailing zeros are suppressed from + the returned string. If not null, *rve is set to point + to the end of the return value. If d is +-Infinity or NaN, + then *decpt is set to 9999. + + mode: + 0 ==> shortest string that yields d when read in + and rounded to nearest. + 1 ==> like 0, but with Steele & White stopping rule; + e.g. with IEEE P754 arithmetic , mode 0 gives + 1e23 whereas mode 1 gives 9.999999999999999e22. + 2 ==> max(1,ndigits) significant digits. This gives a + return value similar to that of ecvt, except + that trailing zeros are suppressed. + 3 ==> through ndigits past the decimal point. This + gives a return value similar to that from fcvt, + except that trailing zeros are suppressed, and + ndigits can be negative. + 4-9 should give the same return values as 2-3, i.e., + 4 <= mode <= 9 ==> same return as mode + 2 + (mode & 1). These modes are mainly for + debugging; often they run slower but sometimes + faster than modes 2-3. + 4,5,8,9 ==> left-to-right digit generation. + 6-9 ==> don't try fast floating-point estimate + (if applicable). + + Values of mode other than 0-9 are treated as mode 0. + + Sufficient space is allocated to the return value + to hold the suppressed trailing zeros. + */ + + int bbits, b2, b5, be, dig, i, ieps, ilim0, + j, j1, k, k0, k_check, leftright, m2, m5, s2, s5, + try_quick; + int ilim = 0, ilim1 = 0, spec_case = 0; /* pacify gcc */ + Long L; +#ifndef Sudden_Underflow + int denorm; + ULong x; +#endif + Bigint *b, *b1, *delta, *mhi, *S; + Bigint *mlo = NULL; /* pacify gcc */ + double d2; + double ds, eps; + char *s, *s0; + + if (getWord0(d) & Sign_bit) { + /* set sign for everything, including 0's and NaNs */ + *sign = 1; + setWord0(&d, getWord0(d) & ~Sign_bit); /* clear sign bit */ + } + else + *sign = 0; + +#if defined(IEEE_Arith) + defined(VAX) +#ifdef IEEE_Arith + if ((getWord0(d) & Exp_mask) == Exp_mask) +#else + if (getWord0(d) == 0x8000) +#endif + { + /* Infinity or NaN */ + *decpt = 9999; + s = +#ifdef IEEE_Arith + !getWord1(d) && !(getWord0(d) & 0xfffff) ? const_cast<char*>("Infinity") : +#endif + const_cast<char*>("NaN"); + if (rve) + *rve = +#ifdef IEEE_Arith + s[3] ? s + 8 : +#endif + s + 3; + return s; + } +#endif +#ifdef IBM + d += 0; /* normalize */ +#endif + if (d == g_double_zero) + { + *decpt = 1; + s = const_cast<char*>("0"); + if (rve) + *rve = s + 1; + return s; + } + + b = d2b(d, &be, &bbits); +#ifdef Sudden_Underflow + i = (int)(getWord0(d) >> Exp_shift1 & (Exp_mask>>Exp_shift1)); +#else + if ((i = int(getWord0(d) >> Exp_shift1 & (Exp_mask>>Exp_shift1))) != 0) { +#endif + d2 = d; + setWord0(&d2, getWord0(d2) & Frac_mask1); + setWord0(&d2, getWord0(d2) | Exp_11); +#ifdef IBM + if (j = 11 - hi0bits(getWord0(d2) & Frac_mask)) + d2 /= 1 << j; +#endif + + /* log(x) ~=~ log(1.5) + (x-1.5)/1.5 + * log10(x) = log(x) / log(10) + * ~=~ log(1.5)/log(10) + (x-1.5)/(1.5*log(10)) + * log10(d) = (i-Bias)*log(2)/log(10) + log10(d2) + * + * This suggests computing an approximation k to log10(d) by + * + * k = (i - Bias)*0.301029995663981 + * + ( (d2-1.5)*0.289529654602168 + 0.176091259055681 ); + * + * We want k to be too large rather than too small. + * The error in the first-order Taylor series approximation + * is in our favor, so we just round up the constant enough + * to compensate for any error in the multiplication of + * (i - Bias) by 0.301029995663981; since |i - Bias| <= 1077, + * and 1077 * 0.30103 * 2^-52 ~=~ 7.2e-14, + * adding 1e-13 to the constant term more than suffices. + * Hence we adjust the constant term to 0.1760912590558. + * (We could get a more accurate k by invoking log10, + * but this is probably not worthwhile.) + */ + + i -= Bias; +#ifdef IBM + i <<= 2; + i += j; +#endif +#ifndef Sudden_Underflow + denorm = 0; + } + else { + /* d is denormalized */ + + i = bbits + be + (Bias + (P-1) - 1); + x = i > 32 ? getWord0(d) << (64 - i) | getWord1(d) >> (i - 32) + : getWord1(d) << (32 - i); + d2 = x; + setWord0(&d2, getWord0(d2) - 31*Exp_msk1); /* adjust exponent */ + i -= (Bias + (P-1) - 1) + 1; + denorm = 1; + } +#endif + ds = (d2-1.5)*0.289529654602168 + 0.1760912590558 + i*0.301029995663981; + k = int(ds); + if (ds < 0. && ds != k) + k--; /* want k = floor(ds) */ + k_check = 1; + if (k >= 0 && k <= Ten_pmax) { + if (d < tens[k]) + k--; + k_check = 0; + } + j = bbits - i - 1; + if (j >= 0) { + b2 = 0; + s2 = j; + } + else { + b2 = -j; + s2 = 0; + } + if (k >= 0) { + b5 = 0; + s5 = k; + s2 += k; + } + else { + b2 -= k; + b5 = -k; + s5 = 0; + } + if (mode < 0 || mode > 9) + mode = 0; + try_quick = 1; + if (mode > 5) { + mode -= 4; + try_quick = 0; + } + leftright = 1; + switch(mode) { + case 0: + case 1: + ilim = ilim1 = -1; + i = 18; + ndigits = 0; + break; + case 2: + leftright = 0; + /* no break */ + case 4: + if (ndigits <= 0) + ndigits = 1; + ilim = ilim1 = i = ndigits; + break; + case 3: + leftright = 0; + /* no break */ + case 5: + i = ndigits + k + 1; + ilim = i; + ilim1 = i - 1; + if (i <= 0) + i = 1; + } + *resultp = static_cast<char *>(malloc(i + 1)); + s = s0 = *resultp; + + if (ilim >= 0 && ilim <= Quick_max && try_quick) { + + /* Try to get by with floating-point arithmetic. */ + + i = 0; + d2 = d; + k0 = k; + ilim0 = ilim; + ieps = 2; /* conservative */ + if (k > 0) { + ds = tens[k&0xf]; + j = k >> 4; + if (j & Bletch) { + /* prevent overflows */ + j &= Bletch - 1; + d /= bigtens[n_bigtens-1]; + ieps++; + } + for(; j; j >>= 1, i++) + if (j & 1) { + ieps++; + ds *= bigtens[i]; + } + d /= ds; + } + else if ((j1 = -k) != 0) { + d *= tens[j1 & 0xf]; + for(j = j1 >> 4; j; j >>= 1, i++) + if (j & 1) { + ieps++; + d *= bigtens[i]; + } + } + if (k_check && d < 1. && ilim > 0) { + if (ilim1 <= 0) + goto fast_failed; + ilim = ilim1; + k--; + d *= 10.; + ieps++; + } + eps = ieps*d + 7.; + setWord0(&eps, getWord0(eps) - (P-1)*Exp_msk1); + if (ilim == 0) { + S = mhi = 0; + d -= 5.; + if (d > eps) + goto one_digit; + if (d < -eps) + goto no_digits; + goto fast_failed; + } +#ifndef No_leftright + if (leftright) { + /* Use Steele & White method of only + * generating digits needed. + */ + eps = 0.5/tens[ilim-1] - eps; + for(i = 0;;) { + L = Long(d); + d -= L; + *s++ = '0' + int(L); + if (d < eps) + goto ret1; + if (1. - d < eps) + goto bump_up; + if (++i >= ilim) + break; + eps *= 10.; + d *= 10.; + } + } + else { +#endif + /* Generate ilim digits, then fix them up. */ +#if defined(Q_OS_IRIX) && defined(Q_CC_GNU) + // work around a bug on 64 bit IRIX gcc + double *t = (double *) tens; + eps *= t[ilim-1]; +#else + eps *= tens[ilim-1]; +#endif + for(i = 1;; i++, d *= 10.) { + L = Long(d); + d -= L; + *s++ = '0' + int(L); + if (i == ilim) { + if (d > 0.5 + eps) + goto bump_up; + else if (d < 0.5 - eps) { + while(*--s == '0') {} + s++; + goto ret1; + } + break; + } + } +#ifndef No_leftright + } +#endif + fast_failed: + s = s0; + d = d2; + k = k0; + ilim = ilim0; + } + + /* Do we have a "small" integer? */ + + if (be >= 0 && k <= Int_max) { + /* Yes. */ + ds = tens[k]; + if (ndigits < 0 && ilim <= 0) { + S = mhi = 0; + if (ilim < 0 || d <= 5*ds) + goto no_digits; + goto one_digit; + } + for(i = 1;; i++) { + L = Long(d / ds); + d -= L*ds; +#ifdef Check_FLT_ROUNDS + /* If FLT_ROUNDS == 2, L will usually be high by 1 */ + if (d < 0) { + L--; + d += ds; + } +#endif + *s++ = '0' + int(L); + if (i == ilim) { + d += d; + if (d > ds || (d == ds && L & 1)) { + bump_up: + while(*--s == '9') + if (s == s0) { + k++; + *s = '0'; + break; + } + ++*s++; + } + break; + } + if ((d *= 10.) == g_double_zero) + break; + } + goto ret1; + } + + m2 = b2; + m5 = b5; + mhi = mlo = 0; + if (leftright) { + if (mode < 2) { + i = +#ifndef Sudden_Underflow + denorm ? be + (Bias + (P-1) - 1 + 1) : +#endif +#ifdef IBM + 1 + 4*P - 3 - bbits + ((bbits + be - 1) & 3); +#else + 1 + P - bbits; +#endif + } + else { + j = ilim - 1; + if (m5 >= j) + m5 -= j; + else { + s5 += j -= m5; + b5 += j; + m5 = 0; + } + if ((i = ilim) < 0) { + m2 -= i; + i = 0; + } + } + b2 += i; + s2 += i; + mhi = i2b(1); + } + if (m2 > 0 && s2 > 0) { + i = m2 < s2 ? m2 : s2; + b2 -= i; + m2 -= i; + s2 -= i; + } + if (b5 > 0) { + if (leftright) { + if (m5 > 0) { + mhi = pow5mult(mhi, m5); + b1 = mult(mhi, b); + Bfree(b); + b = b1; + } + if ((j = b5 - m5) != 0) + b = pow5mult(b, j); + } + else + b = pow5mult(b, b5); + } + S = i2b(1); + if (s5 > 0) + S = pow5mult(S, s5); + + /* Check for special case that d is a normalized power of 2. */ + + if (mode < 2) { + if (!getWord1(d) && !(getWord0(d) & Bndry_mask) +#ifndef Sudden_Underflow + && getWord0(d) & Exp_mask +#endif + ) { + /* The special case */ + b2 += Log2P; + s2 += Log2P; + spec_case = 1; + } + else + spec_case = 0; + } + + /* Arrange for convenient computation of quotients: + * shift left if necessary so divisor has 4 leading 0 bits. + * + * Perhaps we should just compute leading 28 bits of S once + * and for all and pass them and a shift to quorem, so it + * can do shifts and ors to compute the numerator for q. + */ +#ifdef Pack_32 + if ((i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0x1f) != 0) + i = 32 - i; +#else + if (i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0xf) + i = 16 - i; +#endif + if (i > 4) { + i -= 4; + b2 += i; + m2 += i; + s2 += i; + } + else if (i < 4) { + i += 28; + b2 += i; + m2 += i; + s2 += i; + } + if (b2 > 0) + b = lshift(b, b2); + if (s2 > 0) + S = lshift(S, s2); + if (k_check) { + if (cmp(b,S) < 0) { + k--; + b = multadd(b, 10, 0); /* we botched the k estimate */ + if (leftright) + mhi = multadd(mhi, 10, 0); + ilim = ilim1; + } + } + if (ilim <= 0 && mode > 2) { + if (ilim < 0 || cmp(b,S = multadd(S,5,0)) <= 0) { + /* no digits, fcvt style */ + no_digits: + k = -1 - ndigits; + goto ret; + } + one_digit: + *s++ = '1'; + k++; + goto ret; + } + if (leftright) { + if (m2 > 0) + mhi = lshift(mhi, m2); + + /* Compute mlo -- check for special case + * that d is a normalized power of 2. + */ + + mlo = mhi; + if (spec_case) { + mhi = Balloc(mhi->k); + Bcopy(mhi, mlo); + mhi = lshift(mhi, Log2P); + } + + for(i = 1;;i++) { + dig = quorem(b,S) + '0'; + /* Do we yet have the shortest decimal string + * that will round to d? + */ + j = cmp(b, mlo); + delta = diff(S, mhi); + j1 = delta->sign ? 1 : cmp(b, delta); + Bfree(delta); +#ifndef ROUND_BIASED + if (j1 == 0 && !mode && !(getWord1(d) & 1)) { + if (dig == '9') + goto round_9_up; + if (j > 0) + dig++; + *s++ = dig; + goto ret; + } +#endif + if (j < 0 || (j == 0 && !mode +#ifndef ROUND_BIASED + && !(getWord1(d) & 1) +#endif + )) { + if (j1 > 0) { + b = lshift(b, 1); + j1 = cmp(b, S); + if ((j1 > 0 || (j1 == 0 && dig & 1)) + && dig++ == '9') + goto round_9_up; + } + *s++ = dig; + goto ret; + } + if (j1 > 0) { + if (dig == '9') { /* possible if i == 1 */ + round_9_up: + *s++ = '9'; + goto roundoff; + } + *s++ = dig + 1; + goto ret; + } + *s++ = dig; + if (i == ilim) + break; + b = multadd(b, 10, 0); + if (mlo == mhi) + mlo = mhi = multadd(mhi, 10, 0); + else { + mlo = multadd(mlo, 10, 0); + mhi = multadd(mhi, 10, 0); + } + } + } + else + for(i = 1;; i++) { + *s++ = dig = quorem(b,S) + '0'; + if (i >= ilim) + break; + b = multadd(b, 10, 0); + } + + /* Round off last digit */ + + b = lshift(b, 1); + j = cmp(b, S); + if (j > 0 || (j == 0 && dig & 1)) { + roundoff: + while(*--s == '9') + if (s == s0) { + k++; + *s++ = '1'; + goto ret; + } + ++*s++; + } + else { + while(*--s == '0') {} + s++; + } + ret: + Bfree(S); + if (mhi) { + if (mlo && mlo != mhi) + Bfree(mlo); + Bfree(mhi); + } + ret1: + Bfree(b); + if (s == s0) { /* don't return empty string */ + *s++ = '0'; + k = 0; + } + *s = 0; + *decpt = k + 1; + if (rve) + *rve = s; + return s0; +} +#else +// NOT thread safe! + +#include <errno.h> + +Q_CORE_EXPORT char *qdtoa( double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp) +{ + if(rve) + *rve = 0; + + char *res; + if (mode == 0) + ndigits = 80; + + if (mode == 3) + res = fcvt(d, ndigits, decpt, sign); + else + res = ecvt(d, ndigits, decpt, sign); + + int n = qstrlen(res); + if (mode == 0) { // remove trailing 0's + const int stop = qMax(1, *decpt); + int i; + for (i = n-1; i >= stop; --i) { + if (res[i] != '0') + break; + } + n = i + 1; + } + *resultp = static_cast<char*>(malloc(n + 1)); + qstrncpy(*resultp, res, n + 1); + return *resultp; +} + +Q_CORE_EXPORT double qstrtod(const char *s00, const char **se, bool *ok) +{ + double ret = strtod((char*)s00, (char**)se); + if (ok) { + if((ret == 0.0l && errno == ERANGE) + || ret == HUGE_VAL || ret == -HUGE_VAL) + *ok = false; + else + *ok = true; // the result will be that we don't report underflow in this case + } + return ret; +} +#endif // QT_QLOCALE_USES_FCVT + +QT_END_NAMESPACE |