+++ /dev/null
-// © 2016 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-/*
-*******************************************************************************
-*
-* Copyright (C) 2013-2016, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-*******************************************************************************
-* file name: listformatter.cpp
-* encoding: UTF-8
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 2012aug27
-* created by: Umesh P. Nair
-*/
-
-#include "unicode/listformatter.h"
-#include "unicode/simpleformatter.h"
-#include "mutex.h"
-#include "hash.h"
-#include "cstring.h"
-#include "ulocimp.h"
-#include "charstr.h"
-#include "ucln_cmn.h"
-#include "uresimp.h"
-#include "resource.h"
-
-U_NAMESPACE_BEGIN
-
-struct ListFormatInternal : public UMemory {
- SimpleFormatter twoPattern;
- SimpleFormatter startPattern;
- SimpleFormatter middlePattern;
- SimpleFormatter endPattern;
-
-ListFormatInternal(
- const UnicodeString& two,
- const UnicodeString& start,
- const UnicodeString& middle,
- const UnicodeString& end,
- UErrorCode &errorCode) :
- twoPattern(two, 2, 2, errorCode),
- startPattern(start, 2, 2, errorCode),
- middlePattern(middle, 2, 2, errorCode),
- endPattern(end, 2, 2, errorCode) {}
-
-ListFormatInternal(const ListFormatData &data, UErrorCode &errorCode) :
- twoPattern(data.twoPattern, errorCode),
- startPattern(data.startPattern, errorCode),
- middlePattern(data.middlePattern, errorCode),
- endPattern(data.endPattern, errorCode) { }
-
-ListFormatInternal(const ListFormatInternal &other) :
- twoPattern(other.twoPattern),
- startPattern(other.startPattern),
- middlePattern(other.middlePattern),
- endPattern(other.endPattern) { }
-};
-
-
-
-static Hashtable* listPatternHash = NULL;
-static UMutex listFormatterMutex = U_MUTEX_INITIALIZER;
-static const char STANDARD_STYLE[] = "standard";
-
-U_CDECL_BEGIN
-static UBool U_CALLCONV uprv_listformatter_cleanup() {
- delete listPatternHash;
- listPatternHash = NULL;
- return TRUE;
-}
-
-static void U_CALLCONV
-uprv_deleteListFormatInternal(void *obj) {
- delete static_cast<ListFormatInternal *>(obj);
-}
-
-U_CDECL_END
-
-ListFormatter::ListFormatter(const ListFormatter& other) :
- owned(other.owned), data(other.data) {
- if (other.owned != NULL) {
- owned = new ListFormatInternal(*other.owned);
- data = owned;
- }
-}
-
-ListFormatter& ListFormatter::operator=(const ListFormatter& other) {
- if (this == &other) {
- return *this;
- }
- delete owned;
- if (other.owned) {
- owned = new ListFormatInternal(*other.owned);
- data = owned;
- } else {
- owned = NULL;
- data = other.data;
- }
- return *this;
-}
-
-void ListFormatter::initializeHash(UErrorCode& errorCode) {
- if (U_FAILURE(errorCode)) {
- return;
- }
-
- listPatternHash = new Hashtable();
- if (listPatternHash == NULL) {
- errorCode = U_MEMORY_ALLOCATION_ERROR;
- return;
- }
-
- listPatternHash->setValueDeleter(uprv_deleteListFormatInternal);
- ucln_common_registerCleanup(UCLN_COMMON_LIST_FORMATTER, uprv_listformatter_cleanup);
-
-}
-
-const ListFormatInternal* ListFormatter::getListFormatInternal(
- const Locale& locale, const char *style, UErrorCode& errorCode) {
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
- CharString keyBuffer(locale.getName(), errorCode);
- keyBuffer.append(':', errorCode).append(style, errorCode);
- UnicodeString key(keyBuffer.data(), -1, US_INV);
- ListFormatInternal* result = NULL;
- {
- Mutex m(&listFormatterMutex);
- if (listPatternHash == NULL) {
- initializeHash(errorCode);
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
- }
- result = static_cast<ListFormatInternal*>(listPatternHash->get(key));
- }
- if (result != NULL) {
- return result;
- }
- result = loadListFormatInternal(locale, style, errorCode);
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
-
- {
- Mutex m(&listFormatterMutex);
- ListFormatInternal* temp = static_cast<ListFormatInternal*>(listPatternHash->get(key));
- if (temp != NULL) {
- delete result;
- result = temp;
- } else {
- listPatternHash->put(key, result, errorCode);
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
- }
- }
- return result;
-}
-
-static const UChar solidus = 0x2F;
-static const UChar aliasPrefix[] = { 0x6C,0x69,0x73,0x74,0x50,0x61,0x74,0x74,0x65,0x72,0x6E,0x2F }; // "listPattern/"
-enum {
- kAliasPrefixLen = UPRV_LENGTHOF(aliasPrefix),
- kStyleLenMax = 24 // longest currently is 14
-};
-
-struct ListFormatter::ListPatternsSink : public ResourceSink {
- UnicodeString two, start, middle, end;
-#if ((U_PLATFORM == U_PF_AIX) || (U_PLATFORM == U_PF_OS390)) && (U_CPLUSPLUS_VERSION < 11)
- char aliasedStyle[kStyleLenMax+1];
- ListPatternsSink() {
- uprv_memset(aliasedStyle, 0, kStyleLenMax+1);
- }
-#else
- char aliasedStyle[kStyleLenMax+1] = {0};
-
- ListPatternsSink() {}
-#endif
- virtual ~ListPatternsSink();
-
- void setAliasedStyle(UnicodeString alias) {
- int32_t startIndex = alias.indexOf(aliasPrefix, kAliasPrefixLen, 0);
- if (startIndex < 0) {
- return;
- }
- startIndex += kAliasPrefixLen;
- int32_t endIndex = alias.indexOf(solidus, startIndex);
- if (endIndex < 0) {
- endIndex = alias.length();
- }
- alias.extract(startIndex, endIndex-startIndex, aliasedStyle, kStyleLenMax+1, US_INV);
- aliasedStyle[kStyleLenMax] = 0;
- }
-
- void handleValueForPattern(ResourceValue &value, UnicodeString &pattern, UErrorCode &errorCode) {
- if (pattern.isEmpty()) {
- if (value.getType() == URES_ALIAS) {
- if (aliasedStyle[0] == 0) {
- setAliasedStyle(value.getAliasUnicodeString(errorCode));
- }
- } else {
- pattern = value.getUnicodeString(errorCode);
- }
- }
- }
-
- virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/,
- UErrorCode &errorCode) {
- aliasedStyle[0] = 0;
- if (value.getType() == URES_ALIAS) {
- setAliasedStyle(value.getAliasUnicodeString(errorCode));
- return;
- }
- ResourceTable listPatterns = value.getTable(errorCode);
- for (int i = 0; U_SUCCESS(errorCode) && listPatterns.getKeyAndValue(i, key, value); ++i) {
- if (uprv_strcmp(key, "2") == 0) {
- handleValueForPattern(value, two, errorCode);
- } else if (uprv_strcmp(key, "end") == 0) {
- handleValueForPattern(value, end, errorCode);
- } else if (uprv_strcmp(key, "middle") == 0) {
- handleValueForPattern(value, middle, errorCode);
- } else if (uprv_strcmp(key, "start") == 0) {
- handleValueForPattern(value, start, errorCode);
- }
- }
- }
-};
-
-// Virtual destructors must be defined out of line.
-ListFormatter::ListPatternsSink::~ListPatternsSink() {}
-
-ListFormatInternal* ListFormatter::loadListFormatInternal(
- const Locale& locale, const char * style, UErrorCode& errorCode) {
- UResourceBundle* rb = ures_open(NULL, locale.getName(), &errorCode);
- rb = ures_getByKeyWithFallback(rb, "listPattern", rb, &errorCode);
- if (U_FAILURE(errorCode)) {
- ures_close(rb);
- return NULL;
- }
- ListFormatter::ListPatternsSink sink;
- char currentStyle[kStyleLenMax+1];
- uprv_strncpy(currentStyle, style, kStyleLenMax);
- currentStyle[kStyleLenMax] = 0;
-
- for (;;) {
- ures_getAllItemsWithFallback(rb, currentStyle, sink, errorCode);
- if (U_FAILURE(errorCode) || sink.aliasedStyle[0] == 0 || uprv_strcmp(currentStyle, sink.aliasedStyle) == 0) {
- break;
- }
- uprv_strcpy(currentStyle, sink.aliasedStyle);
- }
- ures_close(rb);
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
- if (sink.two.isEmpty() || sink.start.isEmpty() || sink.middle.isEmpty() || sink.end.isEmpty()) {
- errorCode = U_MISSING_RESOURCE_ERROR;
- return NULL;
- }
- ListFormatInternal* result = new ListFormatInternal(sink.two, sink.start, sink.middle, sink.end, errorCode);
- if (result == NULL) {
- errorCode = U_MEMORY_ALLOCATION_ERROR;
- return NULL;
- }
- if (U_FAILURE(errorCode)) {
- delete result;
- return NULL;
- }
- return result;
-}
-
-ListFormatter* ListFormatter::createInstance(UErrorCode& errorCode) {
- Locale locale; // The default locale.
- return createInstance(locale, errorCode);
-}
-
-ListFormatter* ListFormatter::createInstance(const Locale& locale, UErrorCode& errorCode) {
- return createInstance(locale, STANDARD_STYLE, errorCode);
-}
-
-ListFormatter* ListFormatter::createInstance(const Locale& locale, const char *style, UErrorCode& errorCode) {
- Locale tempLocale = locale;
- const ListFormatInternal* listFormatInternal = getListFormatInternal(tempLocale, style, errorCode);
- if (U_FAILURE(errorCode)) {
- return NULL;
- }
- ListFormatter* p = new ListFormatter(listFormatInternal);
- if (p == NULL) {
- errorCode = U_MEMORY_ALLOCATION_ERROR;
- return NULL;
- }
- return p;
-}
-
-ListFormatter::ListFormatter(const ListFormatData& listFormatData, UErrorCode &errorCode) {
- owned = new ListFormatInternal(listFormatData, errorCode);
- data = owned;
-}
-
-ListFormatter::ListFormatter(const ListFormatInternal* listFormatterInternal) : owned(NULL), data(listFormatterInternal) {
-}
-
-ListFormatter::~ListFormatter() {
- delete owned;
-}
-
-/**
- * Joins first and second using the pattern pat.
- * On entry offset is an offset into first or -1 if offset unspecified.
- * On exit offset is offset of second in result if recordOffset was set
- * Otherwise if it was >=0 it is set to point into result where it used
- * to point into first. On exit, result is the join of first and second
- * according to pat. Any previous value of result gets replaced.
- */
-static void joinStringsAndReplace(
- const SimpleFormatter& pat,
- const UnicodeString& first,
- const UnicodeString& second,
- UnicodeString &result,
- UBool recordOffset,
- int32_t &offset,
- UErrorCode& errorCode) {
- if (U_FAILURE(errorCode)) {
- return;
- }
- const UnicodeString *params[2] = {&first, &second};
- int32_t offsets[2];
- pat.formatAndReplace(
- params,
- UPRV_LENGTHOF(params),
- result,
- offsets,
- UPRV_LENGTHOF(offsets),
- errorCode);
- if (U_FAILURE(errorCode)) {
- return;
- }
- if (offsets[0] == -1 || offsets[1] == -1) {
- errorCode = U_INVALID_FORMAT_ERROR;
- return;
- }
- if (recordOffset) {
- offset = offsets[1];
- } else if (offset >= 0) {
- offset += offsets[0];
- }
-}
-
-UnicodeString& ListFormatter::format(
- const UnicodeString items[],
- int32_t nItems,
- UnicodeString& appendTo,
- UErrorCode& errorCode) const {
- int32_t offset;
- return format(items, nItems, appendTo, -1, offset, errorCode);
-}
-
-UnicodeString& ListFormatter::format(
- const UnicodeString items[],
- int32_t nItems,
- UnicodeString& appendTo,
- int32_t index,
- int32_t &offset,
- UErrorCode& errorCode) const {
- offset = -1;
- if (U_FAILURE(errorCode)) {
- return appendTo;
- }
- if (data == NULL) {
- errorCode = U_INVALID_STATE_ERROR;
- return appendTo;
- }
-
- if (nItems <= 0) {
- return appendTo;
- }
- if (nItems == 1) {
- if (index == 0) {
- offset = appendTo.length();
- }
- appendTo.append(items[0]);
- return appendTo;
- }
- UnicodeString result(items[0]);
- if (index == 0) {
- offset = 0;
- }
- joinStringsAndReplace(
- nItems == 2 ? data->twoPattern : data->startPattern,
- result,
- items[1],
- result,
- index == 1,
- offset,
- errorCode);
- if (nItems > 2) {
- for (int32_t i = 2; i < nItems - 1; ++i) {
- joinStringsAndReplace(
- data->middlePattern,
- result,
- items[i],
- result,
- index == i,
- offset,
- errorCode);
- }
- joinStringsAndReplace(
- data->endPattern,
- result,
- items[nItems - 1],
- result,
- index == nItems - 1,
- offset,
- errorCode);
- }
- if (U_SUCCESS(errorCode)) {
- if (offset >= 0) {
- offset += appendTo.length();
- }
- appendTo += result;
- }
- return appendTo;
-}
-
-U_NAMESPACE_END
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