Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 409 insertions, 0 deletions

diff --git a/intl/icu/source/i18n/windtfmt.cpp b/intl/icu/source/i18n/windtfmt.cpp
new file mode 100644
index 0000000000..2118f92dce
--- /dev/null
+++ b/intl/icu/source/i18n/windtfmt.cpp
@@ -0,0 +1,409 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+********************************************************************************
+*   Copyright (C) 2005-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+********************************************************************************
+*
+* File WINDTFMT.CPP
+*
+********************************************************************************
+*/
+
+#include "unicode/utypes.h"
+
+#if U_PLATFORM_USES_ONLY_WIN32_API
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/ures.h"
+#include "unicode/format.h"
+#include "unicode/fmtable.h"
+#include "unicode/datefmt.h"
+#include "unicode/simpleformatter.h"
+#include "unicode/calendar.h"
+#include "unicode/gregocal.h"
+#include "unicode/locid.h"
+#include "unicode/unistr.h"
+#include "unicode/ustring.h"
+#include "unicode/timezone.h"
+#include "unicode/utmscale.h"
+
+#include "cmemory.h"
+#include "uresimp.h"
+#include "windtfmt.h"
+#include "wintzimpl.h"
+
+#ifndef WIN32_LEAN_AND_MEAN
+#   define WIN32_LEAN_AND_MEAN
+#endif
+#   define VC_EXTRALEAN
+#   define NOUSER
+#   define NOSERVICE
+#   define NOIME
+#   define NOMCX
+#include <windows.h>
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Win32DateFormat)
+
+#define NEW_ARRAY(type,count) (type *) uprv_malloc((count) * sizeof(type))
+#define DELETE_ARRAY(array) uprv_free((void *) (array))
+
+#define STACK_BUFFER_SIZE 64
+
+UnicodeString* Win32DateFormat::getTimeDateFormat(const Calendar *cal, const Locale *locale, UErrorCode &status) const
+{
+    UnicodeString *result = nullptr;
+    const char *type = cal->getType();
+    const char *base = locale->getBaseName();
+    UResourceBundle *topBundle = ures_open((char *) 0, base, &status);
+    UResourceBundle *calBundle = ures_getByKey(topBundle, "calendar", nullptr, &status);
+    UResourceBundle *typBundle = ures_getByKeyWithFallback(calBundle, type, nullptr, &status);
+    UResourceBundle *patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", nullptr, &status);
+
+    if (status == U_MISSING_RESOURCE_ERROR) {
+        status = U_ZERO_ERROR;
+        typBundle = ures_getByKeyWithFallback(calBundle, "gregorian", typBundle, &status);
+        patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", patBundle, &status);
+    }
+
+    if (U_FAILURE(status)) {
+        static const char16_t defaultPattern[] = {0x007B, 0x0031, 0x007D, 0x0020, 0x007B, 0x0030, 0x007D, 0x0000}; // "{1} {0}"
+        return new UnicodeString(defaultPattern, UPRV_LENGTHOF(defaultPattern));
+    }
+
+    int32_t resStrLen = 0;
+    int32_t glueIndex = DateFormat::kDateTime;
+    int32_t patSize = ures_getSize(patBundle);
+    if (patSize >= (DateFormat::kDateTimeOffset + DateFormat::kShort + 1)) {
+        // Get proper date time format
+        glueIndex = (int32_t)(DateFormat::kDateTimeOffset + (fDateStyle - DateFormat::kDateOffset));
+    }
+    const char16_t *resStr = ures_getStringByIndex(patBundle, glueIndex, &resStrLen, &status);
+
+    result = new UnicodeString(true, resStr, resStrLen);
+
+    ures_close(patBundle);
+    ures_close(typBundle);
+    ures_close(calBundle);
+    ures_close(topBundle);
+
+    return result;
+}
+
+// TODO: This is copied in both winnmfmt.cpp and windtfmt.cpp, but really should
+// be factored out into a common helper for both.
+static UErrorCode GetEquivalentWindowsLocaleName(const Locale& locale, UnicodeString** buffer)
+{
+    UErrorCode status = U_ZERO_ERROR;
+    char asciiBCP47Tag[LOCALE_NAME_MAX_LENGTH] = {};
+
+    // Convert from names like "en_CA" and "de_DE@collation=phonebook" to "en-CA" and "de-DE-u-co-phonebk".
+    (void)uloc_toLanguageTag(locale.getName(), asciiBCP47Tag, UPRV_LENGTHOF(asciiBCP47Tag), false, &status);
+
+    if (U_SUCCESS(status))
+    {
+        // Need it to be UTF-16, not 8-bit
+        // TODO: This seems like a good thing for a helper
+        wchar_t bcp47Tag[LOCALE_NAME_MAX_LENGTH] = {};
+        int32_t i;
+        for (i = 0; i < UPRV_LENGTHOF(bcp47Tag); i++)
+        {
+            if (asciiBCP47Tag[i] == '\0')
+            {
+                break;
+            }
+            else
+            {
+                // normally just copy the character
+                bcp47Tag[i] = static_cast<wchar_t>(asciiBCP47Tag[i]);
+            }
+        }
+
+        // Ensure it's null terminated
+        if (i < (UPRV_LENGTHOF(bcp47Tag) - 1))
+        {
+            bcp47Tag[i] = L'\0';
+        }
+        else
+        {
+            // Ran out of room.
+            bcp47Tag[UPRV_LENGTHOF(bcp47Tag) - 1] = L'\0';
+        }
+
+
+        wchar_t windowsLocaleName[LOCALE_NAME_MAX_LENGTH] = {};
+
+        // Note: On Windows versions below 10, there is no support for locale name aliases.
+        // This means that it will fail for locales where ICU has a completely different
+        // name (like ku vs ckb), and it will also not work for alternate sort locale
+        // names like "de-DE-u-co-phonebk".
+        
+        // TODO: We could add some sort of exception table for cases like ku vs ckb.
+
+        int length = ResolveLocaleName(bcp47Tag, windowsLocaleName, UPRV_LENGTHOF(windowsLocaleName));
+
+        if (length > 0)
+        {
+            *buffer = new UnicodeString(windowsLocaleName);
+        }
+        else
+        {
+            status = U_UNSUPPORTED_ERROR;
+        }
+    }
+    return status;
+}
+
+// TODO: Range-check timeStyle, dateStyle
+Win32DateFormat::Win32DateFormat(DateFormat::EStyle timeStyle, DateFormat::EStyle dateStyle, const Locale &locale, UErrorCode &status)
+  : DateFormat(), fDateTimeMsg(nullptr), fTimeStyle(timeStyle), fDateStyle(dateStyle), fLocale(locale), fZoneID(), fWindowsLocaleName(nullptr)
+{
+    if (U_SUCCESS(status)) {
+        GetEquivalentWindowsLocaleName(locale, &fWindowsLocaleName);
+        // Note: In the previous code, it would look up the LCID for the locale, and if
+        // the locale was not recognized then it would get an LCID of 0, which is a
+        // synonym for LOCALE_USER_DEFAULT on Windows.
+        // If the above method fails, then fWindowsLocaleName will remain as nullptr, and 
+        // then we will pass nullptr to API GetLocaleInfoEx, which is the same as passing
+        // LOCALE_USER_DEFAULT.
+
+        fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
+        uprv_memset(fTZI, 0, sizeof(TIME_ZONE_INFORMATION));
+        adoptCalendar(Calendar::createInstance(locale, status));
+    }
+}
+
+Win32DateFormat::Win32DateFormat(const Win32DateFormat &other)
+  : DateFormat(other)
+{
+    *this = other;
+}
+
+Win32DateFormat::~Win32DateFormat()
+{
+//    delete fCalendar;
+    uprv_free(fTZI);
+    delete fDateTimeMsg;
+    delete fWindowsLocaleName;
+}
+
+Win32DateFormat &Win32DateFormat::operator=(const Win32DateFormat &other)
+{
+    if (this == &other) { return *this; }  // self-assignment: no-op
+    // The following handles fCalendar
+    DateFormat::operator=(other);
+
+//    delete fCalendar;
+
+    this->fDateTimeMsg = other.fDateTimeMsg == nullptr ? nullptr : new UnicodeString(*other.fDateTimeMsg);
+    this->fTimeStyle   = other.fTimeStyle;
+    this->fDateStyle   = other.fDateStyle;
+    this->fLocale      = other.fLocale;
+//    this->fCalendar    = other.fCalendar->clone();
+    this->fZoneID      = other.fZoneID;
+
+    this->fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
+    *this->fTZI = *other.fTZI;
+
+    this->fWindowsLocaleName = other.fWindowsLocaleName == nullptr ? nullptr : new UnicodeString(*other.fWindowsLocaleName);
+
+    return *this;
+}
+
+Win32DateFormat *Win32DateFormat::clone() const
+{
+    return new Win32DateFormat(*this);
+}
+
+// TODO: Is just ignoring pos the right thing?
+UnicodeString &Win32DateFormat::format(Calendar &cal, UnicodeString &appendTo, FieldPosition & /* pos */) const
+{
+    FILETIME ft;
+    SYSTEMTIME st_gmt;
+    SYSTEMTIME st_local;
+    TIME_ZONE_INFORMATION tzi = *fTZI;
+    UErrorCode status = U_ZERO_ERROR;
+    const TimeZone &tz = cal.getTimeZone();
+    int64_t uct, uft;
+
+    setTimeZoneInfo(&tzi, tz);
+
+    uct = utmscale_fromInt64((int64_t) cal.getTime(status), UDTS_ICU4C_TIME, &status);
+    uft = utmscale_toInt64(uct, UDTS_WINDOWS_FILE_TIME, &status);
+
+    ft.dwLowDateTime =  (DWORD) (uft & 0xFFFFFFFF);
+    ft.dwHighDateTime = (DWORD) ((uft >> 32) & 0xFFFFFFFF);
+
+    FileTimeToSystemTime(&ft, &st_gmt);
+    SystemTimeToTzSpecificLocalTime(&tzi, &st_gmt, &st_local);
+
+
+    if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
+        UnicodeString date;
+        UnicodeString time;
+        UnicodeString *pattern = fDateTimeMsg;
+
+        formatDate(&st_local, date);
+        formatTime(&st_local, time);
+
+        if (strcmp(fCalendar->getType(), cal.getType()) != 0) {
+            pattern = getTimeDateFormat(&cal, &fLocale, status);
+        }
+
+        SimpleFormatter(*pattern, 2, 2, status).format(time, date, appendTo, status);
+    } else if (fDateStyle != DateFormat::kNone) {
+        formatDate(&st_local, appendTo);
+    } else if (fTimeStyle != DateFormat::kNone) {
+        formatTime(&st_local, appendTo);
+    }
+
+    return appendTo;
+}
+
+void Win32DateFormat::parse(const UnicodeString& /* text */, Calendar& /* cal */, ParsePosition& pos) const
+{
+    pos.setErrorIndex(pos.getIndex());
+}
+
+void Win32DateFormat::adoptCalendar(Calendar *newCalendar)
+{
+    if (fCalendar == nullptr || strcmp(fCalendar->getType(), newCalendar->getType()) != 0) {
+        UErrorCode status = U_ZERO_ERROR;
+
+        if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
+            delete fDateTimeMsg;
+            fDateTimeMsg = getTimeDateFormat(newCalendar, &fLocale, status);
+        }
+    }
+
+    delete fCalendar;
+    fCalendar = newCalendar;
+
+    fZoneID = setTimeZoneInfo(fTZI, fCalendar->getTimeZone());
+}
+
+void Win32DateFormat::setCalendar(const Calendar &newCalendar)
+{
+    adoptCalendar(newCalendar.clone());
+}
+
+void Win32DateFormat::adoptTimeZone(TimeZone *zoneToAdopt)
+{
+    fZoneID = setTimeZoneInfo(fTZI, *zoneToAdopt);
+    fCalendar->adoptTimeZone(zoneToAdopt);
+}
+
+void Win32DateFormat::setTimeZone(const TimeZone& zone)
+{
+    fZoneID = setTimeZoneInfo(fTZI, zone);
+    fCalendar->setTimeZone(zone);
+}
+
+static const DWORD dfFlags[] = {DATE_LONGDATE, DATE_LONGDATE, DATE_SHORTDATE, DATE_SHORTDATE};
+
+void Win32DateFormat::formatDate(const SYSTEMTIME *st, UnicodeString &appendTo) const
+{
+    int result=0;
+    wchar_t stackBuffer[STACK_BUFFER_SIZE];
+    wchar_t *buffer = stackBuffer;
+    const wchar_t *localeName = nullptr;
+
+    if (fWindowsLocaleName != nullptr)
+    {
+        localeName = reinterpret_cast<const wchar_t*>(toOldUCharPtr(fWindowsLocaleName->getTerminatedBuffer()));
+    }
+
+    result = GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, nullptr, buffer, STACK_BUFFER_SIZE, nullptr);
+
+    if (result == 0) {
+        if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+            int newLength = GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, nullptr, nullptr, 0, nullptr);
+
+            buffer = NEW_ARRAY(wchar_t, newLength);
+
+            GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, nullptr, buffer, newLength, nullptr);
+        }
+    }
+
+    appendTo.append((const char16_t *)buffer, (int32_t) wcslen(buffer));
+
+    if (buffer != stackBuffer) {
+        DELETE_ARRAY(buffer);
+    }
+}
+
+static const DWORD tfFlags[] = {0, 0, 0, TIME_NOSECONDS};
+
+void Win32DateFormat::formatTime(const SYSTEMTIME *st, UnicodeString &appendTo) const
+{
+    int result;
+    wchar_t stackBuffer[STACK_BUFFER_SIZE];
+    wchar_t *buffer = stackBuffer;
+    const wchar_t *localeName = nullptr;
+
+    if (fWindowsLocaleName != nullptr)
+    {
+        localeName = reinterpret_cast<const wchar_t*>(toOldUCharPtr(fWindowsLocaleName->getTerminatedBuffer()));
+    }
+
+    result = GetTimeFormatEx(localeName, tfFlags[fTimeStyle], st, nullptr, buffer, STACK_BUFFER_SIZE);
+
+    if (result == 0) {
+        if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+            int newLength = GetTimeFormatEx(localeName, tfFlags[fTimeStyle], st, nullptr, nullptr, 0);
+
+            buffer = NEW_ARRAY(wchar_t, newLength);
+
+            GetTimeFormatEx(localeName, tfFlags[fTimeStyle], st, nullptr, buffer, newLength);
+        }
+    }
+
+    appendTo.append((const char16_t *)buffer, (int32_t) wcslen(buffer));
+
+    if (buffer != stackBuffer) {
+        DELETE_ARRAY(buffer);
+    }
+}
+
+UnicodeString Win32DateFormat::setTimeZoneInfo(TIME_ZONE_INFORMATION *tzi, const TimeZone &zone) const
+{
+    UnicodeString zoneID;
+
+    zone.getID(zoneID);
+
+    if (zoneID.compare(fZoneID) != 0) {
+        UnicodeString icuid;
+
+        zone.getID(icuid);
+        if (! uprv_getWindowsTimeZoneInfo(tzi, icuid.getBuffer(), icuid.length())) {
+            UBool found = false;
+            int32_t ec = TimeZone::countEquivalentIDs(icuid);
+
+            for (int z = 0; z < ec; z += 1) {
+                UnicodeString equiv = TimeZone::getEquivalentID(icuid, z);
+
+                found = uprv_getWindowsTimeZoneInfo(tzi, equiv.getBuffer(), equiv.length());
+                if (found) {
+                    break;
+                }
+            }
+
+            if (! found) {
+                GetTimeZoneInformation(tzi);
+            }
+        }
+    }
+
+    return zoneID;
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+#endif // U_PLATFORM_USES_ONLY_WIN32_API
+