scuffed-code/icu4c/source/i18n/dtfmtsym.cpp
2000-09-27 19:16:54 +00:00

613 lines
21 KiB
C++

/*
*******************************************************************************
* Copyright (C) 1997-1999, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*
* File DTFMTSYM.CPP
*
* Modification History:
*
* Date Name Description
* 02/19/97 aliu Converted from java.
* 07/21/98 stephen Added getZoneIndex
* Changed weekdays/short weekdays to be one-based
* 06/14/99 stephen Removed SimpleDateFormat::fgTimeZoneDataSuffix
* 11/16/99 weiv Added 'Y' and 'e' to fgPatternChars
* 03/27/00 weiv Keeping resource bundle around!
*******************************************************************************
*/
#include "unicode/dtfmtsym.h"
#include "unicode/resbund.h"
#include "unicode/smpdtfmt.h"
#include "mutex.h"
// *****************************************************************************
// class DateFormatSymbols
// *****************************************************************************
#define PATTERN_CHARS_LEN 20
// generic date-format pattern symbols. For their meanings, see class docs
// for SimpleDateFormat
UnicodeString DateFormatSymbols::fgPatternChars = UNICODE_STRING("GyMdkHmsSEDFwWahKzYe", PATTERN_CHARS_LEN);
//------------------------------------------------------
// Strings of last resort. These are only used if we have no resource
// files. They aren't designed for actual use, just for backup.
//============================================================
// To make the VC++ compiler happy these must occur before the
// sizeof operations on the arrays occur below.
//============================================================
// These are the month names and abbreviations of last resort.
const UnicodeString DateFormatSymbols::fgLastResortMonthNames[] =
{
UNICODE_STRING("01", 2), UNICODE_STRING("02", 2), UNICODE_STRING("03", 2), UNICODE_STRING("04", 2),
UNICODE_STRING("05", 2), UNICODE_STRING("06", 2), UNICODE_STRING("07", 2), UNICODE_STRING("08", 2),
UNICODE_STRING("09", 2), UNICODE_STRING("10", 2), UNICODE_STRING("11", 2), UNICODE_STRING("12", 2),
UNICODE_STRING("13", 2)
};
// These are the weekday names and abbreviations of last resort.
const UnicodeString DateFormatSymbols::fgLastResortDayNames[] =
{
UnicodeString(), UNICODE_STRING("1", 1), UNICODE_STRING("2", 1), UNICODE_STRING("3", 1),
UNICODE_STRING("4", 1), UNICODE_STRING("5", 1), UNICODE_STRING("6", 1), UNICODE_STRING("7", 1)
};
// These are the am/pm and BC/AD markers of last resort.
const UnicodeString DateFormatSymbols::fgLastResortAmPmMarkers[] =
{
UNICODE_STRING("AM", 2), UNICODE_STRING("PM", 2)
};
const UnicodeString DateFormatSymbols::fgLastResortEras[] =
{
UNICODE_STRING("BC", 2), UNICODE_STRING("AD", 2)
};
// These are the zone strings of last resort.
UnicodeString** DateFormatSymbols::fgLastResortZoneStringsH = 0;
const UnicodeString DateFormatSymbols::fgLastResortZoneStrings[] =
{
UNICODE_STRING("GMT", 3), UNICODE_STRING("GMT", 3), UNICODE_STRING("GMT", 3), UNICODE_STRING("GMT", 3), UNICODE_STRING("GMT", 3)
};
//------------------------------------------------------
DateFormatSymbols::DateFormatSymbols(const Locale& locale,
UErrorCode& status)
{
initializeData(locale, status);
}
DateFormatSymbols::DateFormatSymbols(UErrorCode& status)
{
initializeData(Locale::getDefault(), status, TRUE);
}
DateFormatSymbols::DateFormatSymbols(const DateFormatSymbols& other)
{
fIsOwned = 0; // We own nothing (ignore existing pointers)
*this = other;
}
void
DateFormatSymbols::assignArray(UnicodeString*& dstArray,
int32_t& dstCount,
const UnicodeString* srcArray,
int32_t srcCount,
const DateFormatSymbols& other,
int32_t which)
{
// duplicates or aliases the source array, depending on the status of
// the appropriate isOwned flag
UBool owned = other.isOwned(which);
setIsOwned(which, owned);
dstCount = srcCount;
if (owned)
{
dstArray = new UnicodeString[srcCount];
uprv_arrayCopy(srcArray, dstArray, srcCount);
}
else
{
dstArray = (UnicodeString*)srcArray; // Compiler requires cast
}
}
/**
* Create a copy, in fZoneStrings, of the given zone strings array. The
* member variables fZoneStringsRowCount and fZoneStringsColCount should
* be set already by the caller. The fIsOwned flags are not checked or set
* by this method; that is the caller's responsibility.
*/
void
DateFormatSymbols::createZoneStrings(const UnicodeString *const * otherStrings)
{
fZoneStrings = new UnicodeString*[fZoneStringsRowCount];
for (int32_t row=0; row<fZoneStringsRowCount; ++row)
{
fZoneStrings[row] = new UnicodeString[fZoneStringsColCount];
uprv_arrayCopy(otherStrings[row], fZoneStrings[row], fZoneStringsColCount);
}
}
/**
* Assignment operator. A bit messy because the other object may or may not
* own each of its arrays. We then alias or copy those arrays as appropriate.
* Arrays that aren't owned are assumed to be permanently "around," which is
* true, since they are owned by the ResourceBundle cache.
*/
DateFormatSymbols& DateFormatSymbols::operator=(const DateFormatSymbols& other)
{
dispose();
assignArray(fEras, fErasCount, other.fEras, other.fErasCount, other, kEras);
assignArray(fMonths, fMonthsCount, other.fMonths, other.fMonthsCount, other, kMonths);
assignArray(fShortMonths, fShortMonthsCount, other.fShortMonths, other.fShortMonthsCount, other, kShortMonths);
assignArray(fWeekdays, fWeekdaysCount, other.fWeekdays, other.fWeekdaysCount, other, kWeekdays);
assignArray(fShortWeekdays, fShortWeekdaysCount, other.fShortWeekdays, other.fShortWeekdaysCount, other, kShortWeekdays);
assignArray(fAmPms, fAmPmsCount, other.fAmPms, other.fAmPmsCount, other, kAmPms);
UBool owned = other.isOwned(kZoneStrings);
setIsOwned(kZoneStrings, owned);
fZoneStringsRowCount = other.fZoneStringsRowCount;
fZoneStringsColCount = other.fZoneStringsColCount;
if (owned) createZoneStrings((const UnicodeString**)other.fZoneStrings);
else fZoneStrings = other.fZoneStrings;
fLocalPatternChars = other.fLocalPatternChars;
return *this;
}
DateFormatSymbols::~DateFormatSymbols()
{
dispose();
}
void DateFormatSymbols::dispose()
{
// Delete those items which we have marked as owned
if (isOwned(kEras)) delete[] fEras;
if (isOwned(kMonths)) delete[] fMonths;
if (isOwned(kShortMonths)) delete[] fShortMonths;
if (isOwned(kWeekdays)) delete[] fWeekdays;
if (isOwned(kShortWeekdays)) delete[] fShortWeekdays;
if (isOwned(kAmPms)) delete[] fAmPms;
disposeZoneStrings();
fIsOwned = 0; // Indicate that we no longer need to delete anything
}
void DateFormatSymbols::disposeZoneStrings()
{
if (isOwned(kZoneStrings))
{
for (int32_t row=0; row<fZoneStringsRowCount; ++row)
delete[] fZoneStrings[row];
delete[] fZoneStrings;
}
}
UBool
DateFormatSymbols::arrayCompare(const UnicodeString* array1,
const UnicodeString* array2,
int32_t count)
{
if (array1 == array2) return TRUE;
while (count>0)
{
--count;
if (array1[count] != array2[count]) return FALSE;
}
return TRUE;
}
UBool
DateFormatSymbols::operator==(const DateFormatSymbols& other) const
{
// First do cheap comparisons
if (fErasCount == other.fErasCount &&
fMonthsCount == other.fMonthsCount &&
fShortMonthsCount == other.fShortMonthsCount &&
fWeekdaysCount == other.fWeekdaysCount &&
fShortWeekdaysCount == other.fShortWeekdaysCount &&
fAmPmsCount == other.fAmPmsCount &&
fZoneStringsRowCount == other.fZoneStringsRowCount &&
fZoneStringsColCount == other.fZoneStringsColCount)
{
// Now compare the arrays themselves
if (arrayCompare(fEras, other.fEras, fErasCount) &&
arrayCompare(fMonths, other.fMonths, fMonthsCount) &&
arrayCompare(fShortMonths, other.fShortMonths, fShortMonthsCount) &&
arrayCompare(fWeekdays, other.fWeekdays, fWeekdaysCount) &&
arrayCompare(fShortWeekdays, other.fShortWeekdays, fShortWeekdaysCount) &&
arrayCompare(fAmPms, other.fAmPms, fAmPmsCount))
{
if (fZoneStrings == other.fZoneStrings) return TRUE;
for (int32_t row=0; row<fZoneStringsRowCount; ++row)
{
if (!arrayCompare(fZoneStrings[row], other.fZoneStrings[row], fZoneStringsColCount))
return FALSE;
}
return TRUE;
}
}
return FALSE;
}
//------------------------------------------------------
const UnicodeString*
DateFormatSymbols::getEras(int32_t &count) const
{
count = fErasCount;
return fEras;
}
const UnicodeString*
DateFormatSymbols::getMonths(int32_t &count) const
{
count = fMonthsCount;
return fMonths;
}
const UnicodeString*
DateFormatSymbols::getShortMonths(int32_t &count) const
{
count = fShortMonthsCount;
return fShortMonths;
}
const UnicodeString*
DateFormatSymbols::getWeekdays(int32_t &count) const
{
count = fWeekdaysCount;
return fWeekdays;
}
const UnicodeString*
DateFormatSymbols::getShortWeekdays(int32_t &count) const
{
count = fShortWeekdaysCount;
return fShortWeekdays;
}
const UnicodeString*
DateFormatSymbols::getAmPmStrings(int32_t &count) const
{
count = fAmPmsCount;
return fAmPms;
}
//------------------------------------------------------
void
DateFormatSymbols::setEras(const UnicodeString* erasArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kEras)) delete[] fEras;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kEras, TRUE);
fEras = new UnicodeString[count];
uprv_arrayCopy(erasArray,fEras, count);
fErasCount = count;
}
void
DateFormatSymbols::setMonths(const UnicodeString* monthsArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kMonths)) delete[] fMonths;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kMonths, TRUE);
fMonths = new UnicodeString[count];
uprv_arrayCopy( monthsArray,fMonths,count);
fMonthsCount = count;
}
void
DateFormatSymbols::setShortMonths(const UnicodeString* shortMonthsArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kShortMonths)) delete[] fShortMonths;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kShortMonths, TRUE);
fShortMonths = new UnicodeString[count];
uprv_arrayCopy(shortMonthsArray,fShortMonths, count);
fShortMonthsCount = count;
}
void DateFormatSymbols::setWeekdays(const UnicodeString* weekdaysArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kWeekdays)) delete[] fWeekdays;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kWeekdays, TRUE);
fWeekdays = new UnicodeString[count];
uprv_arrayCopy(weekdaysArray,fWeekdays,count);
fWeekdaysCount = count;
}
void
DateFormatSymbols::setShortWeekdays(const UnicodeString* shortWeekdaysArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kShortWeekdays)) delete[] fShortWeekdays;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kShortWeekdays, TRUE);
fShortWeekdays = new UnicodeString[count];
uprv_arrayCopy( shortWeekdaysArray,fShortWeekdays,count);
fShortWeekdaysCount = count;
}
void
DateFormatSymbols::setAmPmStrings(const UnicodeString* amPmsArray, int32_t count)
{
// delete the old list if we own it
if (isOwned(kAmPms)) delete[] fAmPms;
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kAmPms, TRUE);
fAmPms = new UnicodeString[count];
uprv_arrayCopy(amPmsArray,fAmPms,count);
fAmPmsCount = count;
}
//------------------------------------------------------
const UnicodeString**
DateFormatSymbols::getZoneStrings(int32_t& rowCount, int32_t& columnCount) const
{
rowCount = fZoneStringsRowCount;
columnCount = fZoneStringsColCount;
return (const UnicodeString**)fZoneStrings; // Compiler requires cast
}
void
DateFormatSymbols::setZoneStrings(const UnicodeString* const *strings, int32_t rowCount, int32_t columnCount)
{
// since deleting a 2-d array is a pain in the butt, we offload that task to
// a separate function
disposeZoneStrings();
// we always own the new list, which we create here (we duplicate rather
// than adopting the list passed in)
setIsOwned(kZoneStrings, TRUE);
fZoneStringsRowCount = rowCount;
fZoneStringsColCount = columnCount;
createZoneStrings((const UnicodeString**)strings);
}
//------------------------------------------------------
UnicodeString&
DateFormatSymbols::getLocalPatternChars(UnicodeString& result) const
{
result = fLocalPatternChars;
return result;
}
//------------------------------------------------------
void
DateFormatSymbols::setLocalPatternChars(const UnicodeString& newLocalPatternChars)
{
fLocalPatternChars = newLocalPatternChars;
}
//------------------------------------------------------
void
DateFormatSymbols::initField(UnicodeString **field, int32_t& length, const ResourceBundle data, uint8_t ownfield, UErrorCode &status) {
//ResourceBundle data = source->getByKey(tag, status);
length = data.getSize();
*field = new UnicodeString[length];
for(int32_t i = 0; i<length; i++) {
*(*(field)+i) = data.getStringEx(i, status);
}
setIsOwned(ownfield, TRUE);
}
void
DateFormatSymbols::initializeData(const Locale& locale, UErrorCode& status, UBool useLastResortData)
{
if (U_FAILURE(status)) return;
fIsOwned = 0; // Nothing is owned
int32_t i;
/**
* Retrieve the string arrays we need from the resource bundle file.
* We cast away const here, but that's okay; we won't delete any of
* these.
*/
ResourceBundle resource((char *)0, locale, status);
if (U_FAILURE(status))
{
if (useLastResortData)
{
// Handle the case in which there is no resource data present.
// We don't have to generate usable patterns in this situation;
// we just need to produce something that will be semi-intelligible
// in most locales.
status = U_USING_FALLBACK_ERROR;
fEras = (UnicodeString*)fgLastResortEras;
fErasCount = sizeof(fgLastResortEras[0]) / sizeof(fgLastResortEras[0]);
fMonths = fShortMonths = (UnicodeString*)fgLastResortMonthNames;
fMonthsCount = fShortMonthsCount = sizeof(fgLastResortMonthNames) / sizeof(fgLastResortMonthNames[0]);
fWeekdays = fShortWeekdays = (UnicodeString*)fgLastResortDayNames;
fWeekdaysCount = fShortWeekdaysCount = sizeof(fgLastResortDayNames) / sizeof(fgLastResortDayNames[0]);
fAmPms = (UnicodeString*)fgLastResortAmPmMarkers;
fAmPmsCount = sizeof(fgLastResortAmPmMarkers) / sizeof(fgLastResortAmPmMarkers[0]);
if (fgLastResortZoneStringsH == 0)
{
// Initialize this -- the compiler doesn't like to do so at static init time
fgLastResortZoneStringsH = new UnicodeString*[1];
Mutex lock; // This could be optimized but it's not worth it -- exceptional case
*fgLastResortZoneStringsH = (UnicodeString*)fgLastResortZoneStrings;
}
fZoneStrings = fgLastResortZoneStringsH;
fZoneStringsRowCount = 1;
fZoneStringsColCount = sizeof(fgLastResortZoneStrings);
fLocalPatternChars = fgPatternChars;
}
return;
}
// if we make it to here, the resource data is cool, and we can get everything out
// of it that we need except for the time-zone and localized-pattern data, which
// are stoerd in a separate file
initField(&fEras, fErasCount, resource.get(SimpleDateFormat::fgErasTag, status), kEras, status);
initField(&fMonths, fMonthsCount, resource.get(SimpleDateFormat::fgMonthNamesTag, status), kMonths, status);
initField(&fShortMonths, fShortMonthsCount, resource.get(SimpleDateFormat::fgMonthAbbreviationsTag, status), kShortMonths, status);
initField(&fAmPms, fAmPmsCount, resource.get(SimpleDateFormat::fgAmPmMarkersTag, status), kAmPms, status);
fLocalPatternChars = resource.getStringEx(SimpleDateFormat::fgLocalPatternCharsTag, status);
//fEras = (UnicodeString*)resource.getStringArray(SimpleDateFormat::fgErasTag, fErasCount, status);
//fMonths = (UnicodeString*)resource.getStringArray(SimpleDateFormat::fgMonthNamesTag, fMonthsCount, status);
//fShortMonths = (UnicodeString*)resource.getStringArray(SimpleDateFormat::fgMonthAbbreviationsTag, fShortMonthsCount, status);
//fAmPms = (UnicodeString*)resource.getStringArray(SimpleDateFormat::fgAmPmMarkersTag, fAmPmsCount, status);
//fLocalPatternChars = *resource.getString(SimpleDateFormat::fgLocalPatternCharsTag, status);
ResourceBundle zoneArray = resource.get(SimpleDateFormat::fgZoneStringsTag, status);
fZoneStringsRowCount = zoneArray.getSize();
ResourceBundle zoneRow = zoneArray.get((int32_t)0, status);
fZoneStringsColCount = zoneRow.getSize();
fZoneStrings = new UnicodeString * [fZoneStringsRowCount];
for(i = 0; i<fZoneStringsRowCount; i++) {
*(fZoneStrings+i) = new UnicodeString[fZoneStringsColCount];
zoneRow = zoneArray.get(i, status);
for(int32_t j = 0; j<fZoneStringsColCount; j++) {
fZoneStrings[i][j] = zoneRow.getStringEx(j, status);
}
}
setIsOwned(kZoneStrings, TRUE);
/*
ResourceBundle data = resource.getByKey(SimpleDateFormat::fgErasTag, status);
fErasCount = data.getSize();
fEras = new UnicodeString[fErasCount];
for(i = 0; i<fErasCount; i++) {
fEras[i] = data.getStringByIndex(i, status);
}
setIsOwned(kEras, TRUE);
data = resource.getByKey(SimpleDateFormat::fgMonthNamesTag, status);
fMonthsCount = data.getSize();
fMonths = new UnicodeString[fMonthsCount];
for(int32_t i = 0; i<fMonthsCount; i++) {
fMonths[i] = data.getStringByIndex(i, status);
}
setIsOwned(kMonths, TRUE);
*/
// {sfb} fixed to handle 1-based weekdays
ResourceBundle weekdaysData = resource.get(SimpleDateFormat::fgDayNamesTag, status);
fWeekdaysCount = weekdaysData.getSize();
fWeekdays = new UnicodeString[fWeekdaysCount+1];
fWeekdays[0] = UnicodeString();
for(i = 0; i<fWeekdaysCount; i++) {
fWeekdays[i+1] = weekdaysData.getStringEx(i, status);
}
setIsOwned(kWeekdays, TRUE);
ResourceBundle lsweekdaysData = resource.get(SimpleDateFormat::fgDayAbbreviationsTag, status);
fShortWeekdaysCount = lsweekdaysData.getSize();
fShortWeekdays = new UnicodeString[fShortWeekdaysCount+1];
fShortWeekdays[0] = UnicodeString();
for(i = 0; i<fShortWeekdaysCount; i++) {
fShortWeekdays[i+1] = lsweekdaysData.getStringEx(i, status);
}
setIsOwned(kShortWeekdays, TRUE);
fWeekdaysCount = fShortWeekdaysCount = 8;
// If the locale data does not include new pattern chars, use the defaults
if (fLocalPatternChars.length() < PATTERN_CHARS_LEN) {
UnicodeString str;
fgPatternChars.extractBetween(fLocalPatternChars.length(), PATTERN_CHARS_LEN, str);
fLocalPatternChars.append(str);
}
}
/**
* Package private: used by SimpleDateFormat
* Gets the index for the given time zone ID to obtain the timezone
* strings for formatting. The time zone ID is just for programmatic
* lookup. NOT LOCALIZED!!!
* @param ID the given time zone ID.
* @return the index of the given time zone ID. Returns -1 if
* the given time zone ID can't be located in the DateFormatSymbols object.
* @see java.util.SimpleTimeZone
*/
int32_t DateFormatSymbols::getZoneIndex(const UnicodeString& ID) const
{
int32_t result = _getZoneIndex(ID);
if (result >= 0) {
return result;
}
// Do a search through the equivalency group for the given ID
int32_t n = TimeZone::countEquivalentIDs(ID);
if (n > 1) {
int32_t i;
for (i=0; i<n; ++i) {
UnicodeString equivID = TimeZone::getEquivalentID(ID, i);
if (equivID != ID) {
int32_t equivResult = _getZoneIndex(equivID);
if (equivResult >= 0) {
return equivResult;
}
}
}
}
return -1;
}
/**
* Lookup the given ID. Do NOT do an equivalency search.
*/
int32_t DateFormatSymbols::_getZoneIndex(const UnicodeString& ID) const
{
// {sfb} kludge to support case-insensitive comparison
UnicodeString lcaseID(ID);
lcaseID.toLower();
for(int32_t index = 0; index < fZoneStringsRowCount; index++) {
UnicodeString lcase(fZoneStrings[index][0]);
lcase.toLower();
if (lcaseID == lcase) {
return index;
}
}
return -1;
}
//eof