The Tor Browser: intl/icu/source/common/listformatter.cpp@fc2d59ddac77 (annotated)

intl/icu/source/common/listformatter.cpp@fc2d59ddac77 (annotated)

intl/icu/source/common/listformatter.cpp

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
 *******************************************************************************
 *
 *   Copyright (C) 2013, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
 *   file name:  listformatter.cpp
 *   encoding:   US-ASCII
 *   tab size:   8 (not used)
 *   indentation:4
 *
 *   created on: 2012aug27
 *   created by: Umesh P. Nair
 */
 #include "unicode/listformatter.h"
 #include "mutex.h"
 #include "hash.h"
 #include "cstring.h"
 #include "ulocimp.h"
 #include "charstr.h"
 #include "ucln_cmn.h"
 #include "uresimp.h"
 U_NAMESPACE_BEGIN
 static Hashtable* listPatternHash = NULL;
 static UMutex listFormatterMutex = U_MUTEX_INITIALIZER;
 static UChar FIRST_PARAMETER[] = { 0x7b, 0x30, 0x7d };  // "{0}"
 static UChar SECOND_PARAMETER[] = { 0x7b, 0x31, 0x7d };  // "{0}"
 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_deleteListFormatData(void *obj) {
     delete static_cast<ListFormatData *>(obj);
 }
 U_CDECL_END
 static ListFormatData* loadListFormatData(const Locale& locale, const char* style, UErrorCode& errorCode);
 static void getStringByKey(const UResourceBundle* rb, const char* key, UnicodeString& result, UErrorCode& errorCode);
 ListFormatter::ListFormatter(const ListFormatter& other) : data(other.data) {
 }
 ListFormatter& ListFormatter::operator=(const ListFormatter& other) {
     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_deleteListFormatData);
     ucln_common_registerCleanup(UCLN_COMMON_LIST_FORMATTER, uprv_listformatter_cleanup);
 }
 const ListFormatData* ListFormatter::getListFormatData(
         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);
     ListFormatData* result = NULL;
     {
         Mutex m(&listFormatterMutex);
         if (listPatternHash == NULL) {
             initializeHash(errorCode);
             if (U_FAILURE(errorCode)) {
                 return NULL;
             }
         }
         result = static_cast<ListFormatData*>(listPatternHash->get(key));
     }
     if (result != NULL) {
         return result;
     }
     result = loadListFormatData(locale, style, errorCode);
     if (U_FAILURE(errorCode)) {
         return NULL;
     }
     {
         Mutex m(&listFormatterMutex);
         ListFormatData* temp = static_cast<ListFormatData*>(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 ListFormatData* loadListFormatData(
         const Locale& locale, const char * style, UErrorCode& errorCode) {
     UResourceBundle* rb = ures_open(NULL, locale.getName(), &errorCode);
     if (U_FAILURE(errorCode)) {
         ures_close(rb);
         return NULL;
     }
     rb = ures_getByKeyWithFallback(rb, "listPattern", rb, &errorCode);
     rb = ures_getByKeyWithFallback(rb, style, rb, &errorCode);
     // TODO(Travis Keep): This is a hack until fallbacks can be added for
     // listPattern/duration and listPattern/duration-narrow in CLDR.
     if (errorCode == U_MISSING_RESOURCE_ERROR) {
         errorCode = U_ZERO_ERROR;
         rb = ures_getByKeyWithFallback(rb, "standard", rb, &errorCode);
     }
     if (U_FAILURE(errorCode)) {
         ures_close(rb);
         return NULL;
     }
     UnicodeString two, start, middle, end;
     getStringByKey(rb, "2", two, errorCode);
     getStringByKey(rb, "start", start, errorCode);
     getStringByKey(rb, "middle", middle, errorCode);
     getStringByKey(rb, "end", end, errorCode);
     ures_close(rb);
     if (U_FAILURE(errorCode)) {
         return NULL;
     }
     ListFormatData* result = new ListFormatData(two, start, middle, end);
     if (result == NULL) {
         errorCode = U_MEMORY_ALLOCATION_ERROR;
         return NULL;
     }
     return result;
 }
 static void getStringByKey(const UResourceBundle* rb, const char* key, UnicodeString& result, UErrorCode& errorCode) {
     int32_t len;
     const UChar* ustr = ures_getStringByKeyWithFallback(rb, key, &len, &errorCode);
     if (U_FAILURE(errorCode)) {
       return;
     }
     result.setTo(ustr, len);
 }
 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 ListFormatData* listFormatData = getListFormatData(tempLocale, style, errorCode);
     if (U_FAILURE(errorCode)) {
         return NULL;
     }
     ListFormatter* p = new ListFormatter(listFormatData);
     if (p == NULL) {
         errorCode = U_MEMORY_ALLOCATION_ERROR;
         return NULL;
     }
     return p;
 }
 ListFormatter::ListFormatter(const ListFormatData* listFormatterData) : data(listFormatterData) {
 }
 ListFormatter::~ListFormatter() {}
 UnicodeString& ListFormatter::format(const UnicodeString items[], int32_t nItems,
                       UnicodeString& appendTo, UErrorCode& errorCode) const {
     if (U_FAILURE(errorCode)) {
         return appendTo;
     }
     if (data == NULL) {
         errorCode = U_INVALID_STATE_ERROR;
         return appendTo;
     }
     if (nItems > 0) {
         UnicodeString newString = items[0];
         if (nItems == 2) {
             addNewString(data->twoPattern, newString, items[1], errorCode);
         } else if (nItems > 2) {
             addNewString(data->startPattern, newString, items[1], errorCode);
             int32_t i;
             for (i = 2; i < nItems - 1; ++i) {
                 addNewString(data->middlePattern, newString, items[i], errorCode);
             }
             addNewString(data->endPattern, newString, items[nItems - 1], errorCode);
         }
         if (U_SUCCESS(errorCode)) {
             appendTo += newString;
         }
     }
     return appendTo;
 }
 /**
  * Joins originalString and nextString using the pattern pat and puts the result in
  * originalString.
  */
 void ListFormatter::addNewString(const UnicodeString& pat, UnicodeString& originalString,
                                  const UnicodeString& nextString, UErrorCode& errorCode) const {
     if (U_FAILURE(errorCode)) {
         return;
     }
     int32_t p0Offset = pat.indexOf(FIRST_PARAMETER, 3, 0);
     if (p0Offset < 0) {
         errorCode = U_ILLEGAL_ARGUMENT_ERROR;
         return;
     }
     int32_t p1Offset = pat.indexOf(SECOND_PARAMETER, 3, 0);
     if (p1Offset < 0) {
         errorCode = U_ILLEGAL_ARGUMENT_ERROR;
         return;
     }
     int32_t i, j;
     const UnicodeString* firstString;
     const UnicodeString* secondString;
     if (p0Offset < p1Offset) {
         i = p0Offset;
         j = p1Offset;
         firstString = &originalString;
         secondString = &nextString;
     } else {
         i = p1Offset;
         j = p0Offset;
         firstString = &nextString;
         secondString = &originalString;
     }
     UnicodeString result = UnicodeString(pat, 0, i) + *firstString;
     result += UnicodeString(pat, i+3, j-i-3);
     result += *secondString;
     result += UnicodeString(pat, j+3);
     originalString = result;
 }
 U_NAMESPACE_END

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intl/icu/source/common/listformatter.cpp@fc2d59ddac77 (annotated)

intl/icu/source/common/listformatter.cpp