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// © 2016 and later: Unicode, Inc. and others.
/*******************************************************************************
* Copyright (C) 2008-2016, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*
* File DTITVINF.CPP
*
*******************************************************************************
*/
#include "unicode/dtitvinf.h"
#if !UCONFIG_NO_FORMATTING
//TODO: define it in compiler time
//#define DTITVINF_DEBUG 1
#ifdef DTITVINF_DEBUG
#include <iostream>
#endif
#include "cmemory.h"
#include "cstring.h"
#include "unicode/msgfmt.h"
#include "unicode/uloc.h"
#include "unicode/ures.h"
#include "dtitv_impl.h"
#include "charstr.h"
#include "hash.h"
#include "gregoimp.h"
#include "uresimp.h"
#include "hash.h"
#include "gregoimp.h"
#include "uresimp.h"
U_NAMESPACE_BEGIN
#ifdef DTITVINF_DEBUG
#define PRINTMESG(msg) UPRV_BLOCK_MACRO_BEGIN { \
std::cout << "(" << __FILE__ << ":" << __LINE__ << ") " << msg << "\n"; \
} UPRV_BLOCK_MACRO_END
#endif
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DateIntervalInfo)
static const char gCalendarTag[]="calendar";
static const char gGregorianTag[]="gregorian";
static const char gIntervalDateTimePatternTag[]="intervalFormats";
static const char gFallbackPatternTag[]="fallback";
// {0}
static const char16_t gFirstPattern[] = {LEFT_CURLY_BRACKET, DIGIT_ZERO, RIGHT_CURLY_BRACKET};
// {1}
static const char16_t gSecondPattern[] = {LEFT_CURLY_BRACKET, DIGIT_ONE, RIGHT_CURLY_BRACKET};
// default fall-back
static const char16_t gDefaultFallbackPattern[] = {LEFT_CURLY_BRACKET, DIGIT_ZERO, RIGHT_CURLY_BRACKET, SPACE, EN_DASH, SPACE, LEFT_CURLY_BRACKET, DIGIT_ONE, RIGHT_CURLY_BRACKET, 0};
DateIntervalInfo::DateIntervalInfo(UErrorCode& status)
: fFallbackIntervalPattern(gDefaultFallbackPattern),
fFirstDateInPtnIsLaterDate(false),
fIntervalPatterns(nullptr)
{
fIntervalPatterns = initHash(status);
}
DateIntervalInfo::DateIntervalInfo(const Locale& locale, UErrorCode& status)
: fFallbackIntervalPattern(gDefaultFallbackPattern),
fFirstDateInPtnIsLaterDate(false),
fIntervalPatterns(nullptr)
{
initializeData(locale, status);
}
void
DateIntervalInfo::setIntervalPattern(const UnicodeString& skeleton,
UCalendarDateFields lrgDiffCalUnit,
const UnicodeString& intervalPattern,
UErrorCode& status) {
if ( lrgDiffCalUnit == UCAL_HOUR_OF_DAY ) {
setIntervalPatternInternally(skeleton, UCAL_AM_PM, intervalPattern, status);
setIntervalPatternInternally(skeleton, UCAL_HOUR, intervalPattern, status);
} else if ( lrgDiffCalUnit == UCAL_DAY_OF_MONTH ||
lrgDiffCalUnit == UCAL_DAY_OF_WEEK ) {
setIntervalPatternInternally(skeleton, UCAL_DATE, intervalPattern, status);
} else {
setIntervalPatternInternally(skeleton, lrgDiffCalUnit, intervalPattern, status);
}
}
void
DateIntervalInfo::setFallbackIntervalPattern(
const UnicodeString& fallbackPattern,
UErrorCode& status) {
if ( U_FAILURE(status) ) {
return;
}
int32_t firstPatternIndex = fallbackPattern.indexOf(gFirstPattern,
UPRV_LENGTHOF(gFirstPattern), 0);
int32_t secondPatternIndex = fallbackPattern.indexOf(gSecondPattern,
UPRV_LENGTHOF(gSecondPattern), 0);
if ( firstPatternIndex == -1 || secondPatternIndex == -1 ) {
status = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
if ( firstPatternIndex > secondPatternIndex ) {
fFirstDateInPtnIsLaterDate = true;
}
fFallbackIntervalPattern = fallbackPattern;
}
DateIntervalInfo::DateIntervalInfo(const DateIntervalInfo& dtitvinf)
: UObject(dtitvinf),
fIntervalPatterns(nullptr)
{
*this = dtitvinf;
}
DateIntervalInfo&
DateIntervalInfo::operator=(const DateIntervalInfo& dtitvinf) {
if ( this == &dtitvinf ) {
return *this;
}
UErrorCode status = U_ZERO_ERROR;
deleteHash(fIntervalPatterns);
fIntervalPatterns = initHash(status);
copyHash(dtitvinf.fIntervalPatterns, fIntervalPatterns, status);
if ( U_FAILURE(status) ) {
return *this;
}
fFallbackIntervalPattern = dtitvinf.fFallbackIntervalPattern;
fFirstDateInPtnIsLaterDate = dtitvinf.fFirstDateInPtnIsLaterDate;
return *this;
}
DateIntervalInfo*
DateIntervalInfo::clone() const {
return new DateIntervalInfo(*this);
}
DateIntervalInfo::~DateIntervalInfo() {
deleteHash(fIntervalPatterns);
fIntervalPatterns = nullptr;
}
bool
DateIntervalInfo::operator==(const DateIntervalInfo& other) const {
bool equal = (
fFallbackIntervalPattern == other.fFallbackIntervalPattern &&
fFirstDateInPtnIsLaterDate == other.fFirstDateInPtnIsLaterDate );
if ( equal ) {
equal = fIntervalPatterns->equals(*(other.fIntervalPatterns));
}
return equal;
}
UnicodeString&
DateIntervalInfo::getIntervalPattern(const UnicodeString& skeleton,
UCalendarDateFields field,
UnicodeString& result,
UErrorCode& status) const {
if ( U_FAILURE(status) ) {
return result;
}
const UnicodeString* patternsOfOneSkeleton = (UnicodeString*) fIntervalPatterns->get(skeleton);
if ( patternsOfOneSkeleton != nullptr ) {
IntervalPatternIndex index = calendarFieldToIntervalIndex(field, status);
if ( U_FAILURE(status) ) {
return result;
}
const UnicodeString& intervalPattern = patternsOfOneSkeleton[index];
if ( !intervalPattern.isEmpty() ) {
result = intervalPattern;
}
}
return result;
}
UBool
DateIntervalInfo::getDefaultOrder() const {
return fFirstDateInPtnIsLaterDate;
}
UnicodeString&
DateIntervalInfo::getFallbackIntervalPattern(UnicodeString& result) const {
result = fFallbackIntervalPattern;
return result;
}
#define ULOC_LOCALE_IDENTIFIER_CAPACITY (ULOC_FULLNAME_CAPACITY + 1 + ULOC_KEYWORD_AND_VALUES_CAPACITY)
static const int32_t PATH_PREFIX_LENGTH = 17;
static const char16_t PATH_PREFIX[] = {SOLIDUS, CAP_L, CAP_O, CAP_C, CAP_A, CAP_L, CAP_E, SOLIDUS,
LOW_C, LOW_A, LOW_L, LOW_E, LOW_N, LOW_D, LOW_A, LOW_R, SOLIDUS};
static const int32_t PATH_SUFFIX_LENGTH = 16;
static const char16_t PATH_SUFFIX[] = {SOLIDUS, LOW_I, LOW_N, LOW_T, LOW_E, LOW_R, LOW_V, LOW_A,
LOW_L, CAP_F, LOW_O, LOW_R, LOW_M, LOW_A, LOW_T, LOW_S};
/**
* Sink for enumerating all of the date interval skeletons.
*/
struct DateIntervalInfo::DateIntervalSink : public ResourceSink {
// Output data
DateIntervalInfo &dateIntervalInfo;
// Next calendar type
UnicodeString nextCalendarType;
DateIntervalSink(DateIntervalInfo &diInfo, const char *currentCalendarType)
: dateIntervalInfo(diInfo), nextCalendarType(currentCalendarType, -1, US_INV) { }
virtual ~DateIntervalSink();
virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/, UErrorCode &errorCode) override {
if (U_FAILURE(errorCode)) { return; }
// Iterate over all the calendar entries and only pick the 'intervalFormats' table.
ResourceTable dateIntervalData = value.getTable(errorCode);
if (U_FAILURE(errorCode)) { return; }
for (int32_t i = 0; dateIntervalData.getKeyAndValue(i, key, value); i++) {
if (uprv_strcmp(key, gIntervalDateTimePatternTag) != 0) {
continue;
}
// Handle aliases and tables. Ignore the rest.
if (value.getType() == URES_ALIAS) {
// Get the calendar type for the alias path.
const UnicodeString &aliasPath = value.getAliasUnicodeString(errorCode);
if (U_FAILURE(errorCode)) { return; }
nextCalendarType.remove();
getCalendarTypeFromPath(aliasPath, nextCalendarType, errorCode);
if (U_FAILURE(errorCode)) {
resetNextCalendarType();
}
break;
} else if (value.getType() == URES_TABLE) {
// Iterate over all the skeletons in the 'intervalFormat' table.
ResourceTable skeletonData = value.getTable(errorCode);
if (U_FAILURE(errorCode)) { return; }
for (int32_t j = 0; skeletonData.getKeyAndValue(j, key, value); j++) {
if (value.getType() == URES_TABLE) {
// Process the skeleton
processSkeletonTable(key, value, errorCode);
if (U_FAILURE(errorCode)) { return; }
}
}
break;
}
}
}
/**
* Processes the patterns for a skeleton table
*/
void processSkeletonTable(const char *key, ResourceValue &value, UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return; }
// Iterate over all the patterns in the current skeleton table
const char *currentSkeleton = key;
ResourceTable patternData = value.getTable(errorCode);
if (U_FAILURE(errorCode)) { return; }
for (int32_t k = 0; patternData.getKeyAndValue(k, key, value); k++) {
if (value.getType() == URES_STRING) {
// Process the key
UCalendarDateFields calendarField = validateAndProcessPatternLetter(key);
// If the calendar field has a valid value
if (calendarField < UCAL_FIELD_COUNT) {
// Set the interval pattern
setIntervalPatternIfAbsent(currentSkeleton, calendarField, value, errorCode);
if (U_FAILURE(errorCode)) { return; }
}
}
}
}
/**
* Extracts the calendar type from the path.
*/
static void getCalendarTypeFromPath(const UnicodeString &path, UnicodeString &calendarType,
UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return; }
if (!path.startsWith(PATH_PREFIX, PATH_PREFIX_LENGTH) || !path.endsWith(PATH_SUFFIX, PATH_SUFFIX_LENGTH)) {
errorCode = U_INVALID_FORMAT_ERROR;
return;
}
path.extractBetween(PATH_PREFIX_LENGTH, path.length() - PATH_SUFFIX_LENGTH, calendarType);
}
/**
* Validates and processes the pattern letter
*/
UCalendarDateFields validateAndProcessPatternLetter(const char *patternLetter) {
// Check that patternLetter is just one letter
char c0;
if ((c0 = patternLetter[0]) != 0 && patternLetter[1] == 0) {
// Check that the pattern letter is accepted
if (c0 == 'G') {
return UCAL_ERA;
} else if (c0 == 'y') {
return UCAL_YEAR;
} else if (c0 == 'M') {
return UCAL_MONTH;
} else if (c0 == 'd') {
return UCAL_DATE;
} else if (c0 == 'a') {
return UCAL_AM_PM;
} else if (c0 == 'B') {
// TODO: Using AM/PM as a proxy for flexible day period isn't really correct, but it's close
return UCAL_AM_PM;
} else if (c0 == 'h' || c0 == 'H') {
return UCAL_HOUR;
} else if (c0 == 'm') {
return UCAL_MINUTE;
}// TODO(ticket:12190): Why icu4c doesn't accept the calendar field "s" but icu4j does?
}
return UCAL_FIELD_COUNT;
}
/**
* Stores the interval pattern for the current skeleton in the internal data structure
* if it's not present.
*/
void setIntervalPatternIfAbsent(const char *currentSkeleton, UCalendarDateFields lrgDiffCalUnit,
const ResourceValue &value, UErrorCode &errorCode) {
// Check if the pattern has already been stored on the data structure
IntervalPatternIndex index =
dateIntervalInfo.calendarFieldToIntervalIndex(lrgDiffCalUnit, errorCode);
if (U_FAILURE(errorCode)) { return; }
UnicodeString skeleton(currentSkeleton, -1, US_INV);
UnicodeString* patternsOfOneSkeleton =
(UnicodeString*)(dateIntervalInfo.fIntervalPatterns->get(skeleton));
if (patternsOfOneSkeleton == nullptr || patternsOfOneSkeleton[index].isEmpty()) {
UnicodeString pattern = value.getUnicodeString(errorCode);
dateIntervalInfo.setIntervalPatternInternally(skeleton, lrgDiffCalUnit,
pattern, errorCode);
}
}
const UnicodeString &getNextCalendarType() {
return nextCalendarType;
}
void resetNextCalendarType() {
nextCalendarType.setToBogus();
}
};
// Virtual destructors must be defined out of line.
DateIntervalInfo::DateIntervalSink::~DateIntervalSink() {}
void
DateIntervalInfo::initializeData(const Locale& locale, UErrorCode& status)
{
fIntervalPatterns = initHash(status);
if (U_FAILURE(status)) {
return;
}
const char *locName = locale.getName();
// Get the correct calendar type
const char * calendarTypeToUse = gGregorianTag; // initial default
char calendarType[ULOC_KEYWORDS_CAPACITY]; // to be filled in with the type to use, if all goes well
char localeWithCalendarKey[ULOC_LOCALE_IDENTIFIER_CAPACITY];
// obtain a locale that always has the calendar key value that should be used
(void)ures_getFunctionalEquivalent(localeWithCalendarKey, ULOC_LOCALE_IDENTIFIER_CAPACITY, nullptr,
"calendar", "calendar", locName, nullptr, false, &status);
localeWithCalendarKey[ULOC_LOCALE_IDENTIFIER_CAPACITY-1] = 0; // ensure null termination
// now get the calendar key value from that locale
int32_t calendarTypeLen = uloc_getKeywordValue(localeWithCalendarKey, "calendar", calendarType,
ULOC_KEYWORDS_CAPACITY, &status);
if (U_SUCCESS(status) && calendarTypeLen < ULOC_KEYWORDS_CAPACITY) {
calendarTypeToUse = calendarType;
}
status = U_ZERO_ERROR;
// Instantiate the resource bundles
UResourceBundle *rb, *calBundle;
rb = ures_open(nullptr, locName, &status);
if (U_FAILURE(status)) {
return;
}
calBundle = ures_getByKeyWithFallback(rb, gCalendarTag, nullptr, &status);
if (U_SUCCESS(status)) {
UResourceBundle *calTypeBundle, *itvDtPtnResource;
// Get the fallback pattern
const char16_t* resStr = nullptr;
int32_t resStrLen = 0;
calTypeBundle = ures_getByKeyWithFallback(calBundle, calendarTypeToUse, nullptr, &status);
itvDtPtnResource = ures_getByKeyWithFallback(calTypeBundle,
gIntervalDateTimePatternTag, nullptr, &status);
// TODO(ICU-20400): After the fixing, we should find the "fallback" from
// the rb directly by the path "calendar/${calendar}/intervalFormats/fallback".
if ( U_SUCCESS(status) ) {
resStr = ures_getStringByKeyWithFallback(itvDtPtnResource, gFallbackPatternTag,
&resStrLen, &status);
}
if ( U_SUCCESS(status) && (resStr != nullptr)) {
UnicodeString pattern = UnicodeString(true, resStr, resStrLen);
setFallbackIntervalPattern(pattern, status);
}
ures_close(itvDtPtnResource);
ures_close(calTypeBundle);
// Instantiate the sink
DateIntervalSink sink(*this, calendarTypeToUse);
const UnicodeString &calendarTypeToUseUString = sink.getNextCalendarType();
// Already loaded calendar types
Hashtable loadedCalendarTypes(false, status);
if (U_SUCCESS(status)) {
while (!calendarTypeToUseUString.isBogus()) {
// Set an error when a loop is detected
if (loadedCalendarTypes.geti(calendarTypeToUseUString) == 1) {
status = U_INVALID_FORMAT_ERROR;
break;
}
// Register the calendar type to avoid loops
loadedCalendarTypes.puti(calendarTypeToUseUString, 1, status);
if (U_FAILURE(status)) { break; }
// Get the calendar string
CharString calTypeBuffer;
calTypeBuffer.appendInvariantChars(calendarTypeToUseUString, status);
if (U_FAILURE(status)) { break; }
const char *calType = calTypeBuffer.data();
// Reset the next calendar type to load.
sink.resetNextCalendarType();
// Get all resources for this calendar type
ures_getAllItemsWithFallback(calBundle, calType, sink, status);
}
}
}
// Close the opened resource bundles
ures_close(calBundle);
ures_close(rb);
}
void
DateIntervalInfo::setIntervalPatternInternally(const UnicodeString& skeleton,
UCalendarDateFields lrgDiffCalUnit,
const UnicodeString& intervalPattern,
UErrorCode& status) {
IntervalPatternIndex index = calendarFieldToIntervalIndex(lrgDiffCalUnit,status);
if ( U_FAILURE(status) ) {
return;
}
UnicodeString* patternsOfOneSkeleton = (UnicodeString*)(fIntervalPatterns->get(skeleton));
UBool emptyHash = false;
if ( patternsOfOneSkeleton == nullptr ) {
patternsOfOneSkeleton = new UnicodeString[kIPI_MAX_INDEX];
if (patternsOfOneSkeleton == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
emptyHash = true;
}
patternsOfOneSkeleton[index] = intervalPattern;
if ( emptyHash ) {
fIntervalPatterns->put(skeleton, patternsOfOneSkeleton, status);
}
}
void
DateIntervalInfo::parseSkeleton(const UnicodeString& skeleton,
int32_t* skeletonFieldWidth) {
const int8_t PATTERN_CHAR_BASE = 0x41;
int32_t i;
for ( i = 0; i < skeleton.length(); ++i ) {
// it is an ASCII char in skeleton
int8_t ch = (int8_t)skeleton.charAt(i);
++skeletonFieldWidth[ch - PATTERN_CHAR_BASE];
}
}
UBool
DateIntervalInfo::stringNumeric(int32_t fieldWidth, int32_t anotherFieldWidth,
char patternLetter) {
if ( patternLetter == 'M' ) {
if ( (fieldWidth <= 2 && anotherFieldWidth > 2) ||
(fieldWidth > 2 && anotherFieldWidth <= 2 )) {
return true;
}
}
return false;
}
const UnicodeString*
DateIntervalInfo::getBestSkeleton(const UnicodeString& skeleton,
int8_t& bestMatchDistanceInfo) const {
#ifdef DTITVINF_DEBUG
char result[1000];
char result_1[1000];
char mesg[2000];
skeleton.extract(0, skeleton.length(), result, "UTF-8");
snprintf(mesg, sizeof(mesg), "in getBestSkeleton: skeleton: %s; \n", result);
PRINTMESG(mesg)
#endif
int32_t inputSkeletonFieldWidth[] =
{
// A B C D E F G H I J K L M N O
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// P Q R S T U V W X Y Z
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// a b c d e f g h i j k l m n o
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// p q r s t u v w x y z
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
int32_t skeletonFieldWidth[] =
{
// A B C D E F G H I J K L M N O
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// P Q R S T U V W X Y Z
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// a b c d e f g h i j k l m n o
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// p q r s t u v w x y z
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
const int32_t DIFFERENT_FIELD = 0x1000;
const int32_t STRING_NUMERIC_DIFFERENCE = 0x100;
const int32_t BASE = 0x41;
// hack for certain alternate characters
// resource bundles only have time skeletons containing 'v', 'h', and 'H'
// but not time skeletons containing 'z', 'K', or 'k'
// the skeleton may also include 'a' or 'b', which never occur in the resource bundles, so strip them out too
UBool replacedAlternateChars = false;
const UnicodeString* inputSkeleton = &skeleton;
UnicodeString copySkeleton;
if ( skeleton.indexOf(LOW_Z) != -1 || skeleton.indexOf(CAP_O) != -1 || skeleton.indexOf(LOW_K) != -1 || skeleton.indexOf(CAP_K) != -1 || skeleton.indexOf(LOW_A) != -1 || skeleton.indexOf(LOW_B) != -1 ) {
copySkeleton = skeleton;
copySkeleton.findAndReplace(UnicodeString(LOW_Z), UnicodeString(LOW_V));
copySkeleton.findAndReplace(UnicodeString(CAP_O), UnicodeString(LOW_V));
copySkeleton.findAndReplace(UnicodeString(LOW_K), UnicodeString(CAP_H));
copySkeleton.findAndReplace(UnicodeString(CAP_K), UnicodeString(LOW_H));
copySkeleton.findAndReplace(UnicodeString(LOW_A), UnicodeString());
copySkeleton.findAndReplace(UnicodeString(LOW_B), UnicodeString());
inputSkeleton = ©Skeleton;
replacedAlternateChars = true;
}
parseSkeleton(*inputSkeleton, inputSkeletonFieldWidth);
int32_t bestDistance = MAX_POSITIVE_INT;
const UnicodeString* bestSkeleton = nullptr;
// 0 means exact the same skeletons;
// 1 means having the same field, but with different length,
// 2 means only z/v, h/K, or H/k differs
// -1 means having different field.
bestMatchDistanceInfo = 0;
int8_t fieldLength = UPRV_LENGTHOF(skeletonFieldWidth);
int32_t pos = UHASH_FIRST;
const UHashElement* elem = nullptr;
while ( (elem = fIntervalPatterns->nextElement(pos)) != nullptr ) {
const UHashTok keyTok = elem->key;
UnicodeString* newSkeleton = (UnicodeString*)keyTok.pointer;
#ifdef DTITVINF_DEBUG
skeleton->extract(0, skeleton->length(), result, "UTF-8");
snprintf(mesg, sizeof(mesg), "available skeletons: skeleton: %s; \n", result);
PRINTMESG(mesg)
#endif
// clear skeleton field width
int8_t i;
for ( i = 0; i < fieldLength; ++i ) {
skeletonFieldWidth[i] = 0;
}
parseSkeleton(*newSkeleton, skeletonFieldWidth);
// calculate distance
int32_t distance = 0;
int8_t fieldDifference = 1;
for ( i = 0; i < fieldLength; ++i ) {
int32_t inputFieldWidth = inputSkeletonFieldWidth[i];
int32_t fieldWidth = skeletonFieldWidth[i];
if ( inputFieldWidth == fieldWidth ) {
continue;
}
if ( inputFieldWidth == 0 ) {
fieldDifference = -1;
distance += DIFFERENT_FIELD;
} else if ( fieldWidth == 0 ) {
fieldDifference = -1;
distance += DIFFERENT_FIELD;
} else if (stringNumeric(inputFieldWidth, fieldWidth,
(char)(i+BASE) ) ) {
distance += STRING_NUMERIC_DIFFERENCE;
} else {
distance += (inputFieldWidth > fieldWidth) ?
(inputFieldWidth - fieldWidth) :
(fieldWidth - inputFieldWidth);
}
}
if ( distance < bestDistance ) {
bestSkeleton = newSkeleton;
bestDistance = distance;
bestMatchDistanceInfo = fieldDifference;
}
if ( distance == 0 ) {
bestMatchDistanceInfo = 0;
break;
}
}
if ( replacedAlternateChars && bestMatchDistanceInfo != -1 ) {
bestMatchDistanceInfo = 2;
}
return bestSkeleton;
}
DateIntervalInfo::IntervalPatternIndex
DateIntervalInfo::calendarFieldToIntervalIndex(UCalendarDateFields field,
UErrorCode& status) {
if ( U_FAILURE(status) ) {
return kIPI_MAX_INDEX;
}
IntervalPatternIndex index = kIPI_MAX_INDEX;
switch ( field ) {
case UCAL_ERA:
index = kIPI_ERA;
break;
case UCAL_YEAR:
index = kIPI_YEAR;
break;
case UCAL_MONTH:
index = kIPI_MONTH;
break;
case UCAL_DATE:
case UCAL_DAY_OF_WEEK:
//case UCAL_DAY_OF_MONTH:
index = kIPI_DATE;
break;
case UCAL_AM_PM:
index = kIPI_AM_PM;
break;
case UCAL_HOUR:
case UCAL_HOUR_OF_DAY:
index = kIPI_HOUR;
break;
case UCAL_MINUTE:
index = kIPI_MINUTE;
break;
case UCAL_SECOND:
index = kIPI_SECOND;
break;
case UCAL_MILLISECOND:
index = kIPI_MILLISECOND;
break;
default:
status = U_ILLEGAL_ARGUMENT_ERROR;
}
return index;
}
void
DateIntervalInfo::deleteHash(Hashtable* hTable)
{
if ( hTable == nullptr ) {
return;
}
int32_t pos = UHASH_FIRST;
const UHashElement* element = nullptr;
while ( (element = hTable->nextElement(pos)) != nullptr ) {
const UHashTok valueTok = element->value;
const UnicodeString* value = (UnicodeString*)valueTok.pointer;
delete[] value;
}
delete fIntervalPatterns;
}
U_CDECL_BEGIN
/**
* set hash table value comparator
*
* @param val1 one value in comparison
* @param val2 the other value in comparison
* @return true if 2 values are the same, false otherwise
*/
static UBool U_CALLCONV dtitvinfHashTableValueComparator(UHashTok val1, UHashTok val2);
static UBool
U_CALLCONV dtitvinfHashTableValueComparator(UHashTok val1, UHashTok val2) {
const UnicodeString* pattern1 = (UnicodeString*)val1.pointer;
const UnicodeString* pattern2 = (UnicodeString*)val2.pointer;
UBool ret = true;
int8_t i;
for ( i = 0; i < DateIntervalInfo::kMaxIntervalPatternIndex && ret ; ++i ) {
ret = (pattern1[i] == pattern2[i]);
}
return ret;
}
U_CDECL_END
Hashtable*
DateIntervalInfo::initHash(UErrorCode& status) {
if ( U_FAILURE(status) ) {
return nullptr;
}
Hashtable* hTable;
if ( (hTable = new Hashtable(false, status)) == nullptr ) {
status = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
if ( U_FAILURE(status) ) {
delete hTable;
return nullptr;
}
hTable->setValueComparator(dtitvinfHashTableValueComparator);
return hTable;
}
void
DateIntervalInfo::copyHash(const Hashtable* source,
Hashtable* target,
UErrorCode& status) {
if ( U_FAILURE(status) ) {
return;
}
int32_t pos = UHASH_FIRST;
const UHashElement* element = nullptr;
if ( source ) {
while ( (element = source->nextElement(pos)) != nullptr ) {
const UHashTok keyTok = element->key;
const UnicodeString* key = (UnicodeString*)keyTok.pointer;
const UHashTok valueTok = element->value;
const UnicodeString* value = (UnicodeString*)valueTok.pointer;
UnicodeString* copy = new UnicodeString[kIPI_MAX_INDEX];
if (copy == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
int8_t i;
for ( i = 0; i < kIPI_MAX_INDEX; ++i ) {
copy[i] = value[i];
}
target->put(UnicodeString(*key), copy, status);
if ( U_FAILURE(status) ) {
return;
}
}
}
}
U_NAMESPACE_END
#endif