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      1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 /*
      4  **********************************************************************
      5  *   Copyright (C) 2005-2016, International Business Machines
      6  *   Corporation and others.  All Rights Reserved.
      7  **********************************************************************
      8  */
      9 
     10 #include "unicode/utypes.h"
     11 
     12 #if !UCONFIG_NO_COLLATION
     13 
     14 #include "cmemory.h"
     15 #include "cstring.h"
     16 #include "usrchimp.h"
     17 
     18 #include "unicode/coll.h"
     19 #include "unicode/tblcoll.h"
     20 #include "unicode/usearch.h"
     21 #include "unicode/uset.h"
     22 #include "unicode/ustring.h"
     23 
     24 #include "unicode/coleitr.h"
     25 #include "unicode/regex.h"        // TODO: make conditional on regexp being built.
     26 
     27 #include "colldata.h"
     28 #include "ssearch.h"
     29 #include "xmlparser.h"
     30 
     31 #include <stdio.h>  // for sprintf
     32 
     33 char testId[100];
     34 
     35 #define TEST_ASSERT(x) {if (!(x)) { \
     36     errln("Failure in file %s, line %d, test ID = \"%s\"", __FILE__, __LINE__, testId);}}
     37 
     38 #define TEST_ASSERT_M(x, m) {if (!(x)) { \
     39     dataerrln("Failure in file %s, line %d.   \"%s\"", __FILE__, __LINE__, m);return;}}
     40 
     41 #define TEST_ASSERT_SUCCESS(errcode) {if (U_FAILURE(errcode)) { \
     42     dataerrln("Failure in file %s, line %d, test ID \"%s\", status = \"%s\"", \
     43           __FILE__, __LINE__, testId, u_errorName(errcode));}}
     44 
     45 #define NEW_ARRAY(type, count) (type *) uprv_malloc((count) * sizeof(type))
     46 #define DELETE_ARRAY(array) uprv_free((void *) (array))
     47 
     48 //---------------------------------------------------------------------------
     49 //
     50 //  Test class boilerplate
     51 //
     52 //---------------------------------------------------------------------------
     53 SSearchTest::SSearchTest()
     54 {
     55 }
     56 
     57 SSearchTest::~SSearchTest()
     58 {
     59 }
     60 
     61 void SSearchTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char *params )
     62 {
     63     if (exec) logln("TestSuite SSearchTest: ");
     64     switch (index) {
     65 #if !UCONFIG_NO_BREAK_ITERATION
     66        case 0: name = "searchTest";
     67             if (exec) searchTest();
     68             break;
     69 
     70         case 1: name = "offsetTest";
     71             if (exec) offsetTest();
     72             break;
     73 
     74         case 2: name = "monkeyTest";
     75             if (exec) monkeyTest(params);
     76             break;
     77 
     78         case 3: name = "sharpSTest";
     79             if (exec) sharpSTest();
     80             break;
     81 
     82         case 4: name = "goodSuffixTest";
     83             if (exec) goodSuffixTest();
     84             break;
     85 
     86         case 5: name = "searchTime";
     87             if (exec) searchTime();
     88             break;
     89 #endif
     90         default: name = "";
     91             break; //needed to end loop
     92     }
     93 }
     94 
     95 
     96 #if !UCONFIG_NO_BREAK_ITERATION
     97 
     98 #define PATH_BUFFER_SIZE 2048
     99 const char *SSearchTest::getPath(char buffer[2048], const char *filename) {
    100     UErrorCode status = U_ZERO_ERROR;
    101     const char *testDataDirectory = IntlTest::getSourceTestData(status);
    102 
    103     if (U_FAILURE(status) || strlen(testDataDirectory) + strlen(filename) + 1 >= PATH_BUFFER_SIZE) {
    104         errln("ERROR: getPath() failed - %s", u_errorName(status));
    105         return NULL;
    106     }
    107 
    108     strcpy(buffer, testDataDirectory);
    109     strcat(buffer, filename);
    110     return buffer;
    111 }
    112 
    113 
    114 void SSearchTest::searchTest()
    115 {
    116 #if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_FILE_IO
    117     UErrorCode status = U_ZERO_ERROR;
    118     char path[PATH_BUFFER_SIZE];
    119     const char *testFilePath = getPath(path, "ssearch.xml");
    120 
    121     if (testFilePath == NULL) {
    122         return; /* Couldn't get path: error message already output. */
    123     }
    124 
    125     LocalPointer<UXMLParser> parser(UXMLParser::createParser(status));
    126     TEST_ASSERT_SUCCESS(status);
    127     LocalPointer<UXMLElement> root(parser->parseFile(testFilePath, status));
    128     TEST_ASSERT_SUCCESS(status);
    129     if (U_FAILURE(status)) {
    130         return;
    131     }
    132 
    133     const UnicodeString *debugTestCase = root->getAttribute("debug");
    134     if (debugTestCase != NULL) {
    135 //       setenv("USEARCH_DEBUG", "1", 1);
    136     }
    137 
    138 
    139     const UXMLElement *testCase;
    140     int32_t tc = 0;
    141 
    142     while((testCase = root->nextChildElement(tc)) != NULL) {
    143 
    144         if (testCase->getTagName().compare("test-case") != 0) {
    145             errln("ssearch, unrecognized XML Element in test file");
    146             continue;
    147         }
    148         const UnicodeString *id       = testCase->getAttribute("id");
    149         *testId = 0;
    150         if (id != NULL) {
    151             id->extract(0, id->length(), testId,  sizeof(testId), US_INV);
    152         }
    153 
    154         // If debugging test case has been specified and this is not it, skip to next.
    155         if (id!=NULL && debugTestCase!=NULL && *id != *debugTestCase) {
    156             continue;
    157         }
    158         //
    159         //  Get the requested collation strength.
    160         //    Default is tertiary if the XML attribute is missing from the test case.
    161         //
    162         const UnicodeString *strength = testCase->getAttribute("strength");
    163         UColAttributeValue collatorStrength = UCOL_PRIMARY;
    164         if      (strength==NULL)          { collatorStrength = UCOL_TERTIARY;}
    165         else if (*strength=="PRIMARY")    { collatorStrength = UCOL_PRIMARY;}
    166         else if (*strength=="SECONDARY")  { collatorStrength = UCOL_SECONDARY;}
    167         else if (*strength=="TERTIARY")   { collatorStrength = UCOL_TERTIARY;}
    168         else if (*strength=="QUATERNARY") { collatorStrength = UCOL_QUATERNARY;}
    169         else if (*strength=="IDENTICAL")  { collatorStrength = UCOL_IDENTICAL;}
    170         else {
    171             // Bogus value supplied for strength.  Shouldn't happen, even from
    172             //  typos, if the  XML source has been validated.
    173             //  This assert is a little deceiving in that strength can be
    174             //   any of the allowed values, not just TERTIARY, but it will
    175             //   do the job of getting the error output.
    176             TEST_ASSERT(*strength=="TERTIARY")
    177         }
    178 
    179         //
    180         // Get the collator normalization flag.  Default is UCOL_OFF.
    181         //
    182         UColAttributeValue normalize = UCOL_OFF;
    183         const UnicodeString *norm = testCase->getAttribute("norm");
    184         TEST_ASSERT (norm==NULL || *norm=="ON" || *norm=="OFF");
    185         if (norm!=NULL && *norm=="ON") {
    186             normalize = UCOL_ON;
    187         }
    188 
    189         //
    190         // Get the alternate_handling flag. Default is UCOL_NON_IGNORABLE.
    191         //
    192         UColAttributeValue alternateHandling = UCOL_NON_IGNORABLE;
    193         const UnicodeString *alt = testCase->getAttribute("alternate_handling");
    194         TEST_ASSERT (alt == NULL || *alt == "SHIFTED" || *alt == "NON_IGNORABLE");
    195         if (alt != NULL && *alt == "SHIFTED") {
    196             alternateHandling = UCOL_SHIFTED;
    197         }
    198 
    199         const UnicodeString defLocale("en");
    200         char  clocale[100];
    201         const UnicodeString *locale   = testCase->getAttribute("locale");
    202         if (locale == NULL || locale->length()==0) {
    203             locale = &defLocale;
    204         };
    205         locale->extract(0, locale->length(), clocale, sizeof(clocale), NULL);
    206 
    207 
    208         UnicodeString  text;
    209         UnicodeString  target;
    210         UnicodeString  pattern;
    211         int32_t        expectedMatchStart = -1;
    212         int32_t        expectedMatchLimit = -1;
    213         const UXMLElement  *n;
    214         int32_t                nodeCount = 0;
    215 
    216         n = testCase->getChildElement("pattern");
    217         TEST_ASSERT(n != NULL);
    218         if (n==NULL) {
    219             continue;
    220         }
    221         text = n->getText(FALSE);
    222         text = text.unescape();
    223         pattern.append(text);
    224         nodeCount++;
    225 
    226         n = testCase->getChildElement("pre");
    227         if (n!=NULL) {
    228             text = n->getText(FALSE);
    229             text = text.unescape();
    230             target.append(text);
    231             nodeCount++;
    232         }
    233 
    234         n = testCase->getChildElement("m");
    235         if (n!=NULL) {
    236             expectedMatchStart = target.length();
    237             text = n->getText(FALSE);
    238             text = text.unescape();
    239             target.append(text);
    240             expectedMatchLimit = target.length();
    241             nodeCount++;
    242         }
    243 
    244         n = testCase->getChildElement("post");
    245         if (n!=NULL) {
    246             text = n->getText(FALSE);
    247             text = text.unescape();
    248             target.append(text);
    249             nodeCount++;
    250         }
    251 
    252         //  Check that there weren't extra things in the XML
    253         TEST_ASSERT(nodeCount == testCase->countChildren());
    254 
    255         // Open a collator and StringSearch based on the parameters
    256         //   obtained from the XML.
    257         //
    258         status = U_ZERO_ERROR;
    259         LocalUCollatorPointer collator(ucol_open(clocale, &status));
    260         ucol_setStrength(collator.getAlias(), collatorStrength);
    261         ucol_setAttribute(collator.getAlias(), UCOL_NORMALIZATION_MODE, normalize, &status);
    262         ucol_setAttribute(collator.getAlias(), UCOL_ALTERNATE_HANDLING, alternateHandling, &status);
    263         LocalUStringSearchPointer uss(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
    264                                                                target.getBuffer(), target.length(),
    265                                                                collator.getAlias(),
    266                                                                NULL,     // the break iterator
    267                                                                &status));
    268 
    269         TEST_ASSERT_SUCCESS(status);
    270         if (U_FAILURE(status)) {
    271             continue;
    272         }
    273 
    274         int32_t foundStart = 0;
    275         int32_t foundLimit = 0;
    276         UBool   foundMatch;
    277 
    278         //
    279         // Do the search, check the match result against the expected results.
    280         //
    281         foundMatch= usearch_search(uss.getAlias(), 0, &foundStart, &foundLimit, &status);
    282         TEST_ASSERT_SUCCESS(status);
    283         if ((foundMatch && expectedMatchStart<0) ||
    284             (foundStart != expectedMatchStart)   ||
    285             (foundLimit != expectedMatchLimit)) {
    286                 TEST_ASSERT(FALSE);   //  ouput generic error position
    287                 infoln("Found, expected match start = %d, %d \n"
    288                        "Found, expected match limit = %d, %d",
    289                 foundStart, expectedMatchStart, foundLimit, expectedMatchLimit);
    290         }
    291 
    292         // In case there are other matches...
    293         // (should we only do this if the test case passed?)
    294         while (foundMatch) {
    295             expectedMatchStart = foundStart;
    296             expectedMatchLimit = foundLimit;
    297 
    298             foundMatch = usearch_search(uss.getAlias(), foundLimit, &foundStart, &foundLimit, &status);
    299         }
    300 
    301         uss.adoptInstead(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
    302             target.getBuffer(), target.length(),
    303             collator.getAlias(),
    304             NULL,
    305             &status));
    306 
    307         //
    308         // Do the backwards search, check the match result against the expected results.
    309         //
    310         foundMatch= usearch_searchBackwards(uss.getAlias(), target.length(), &foundStart, &foundLimit, &status);
    311         TEST_ASSERT_SUCCESS(status);
    312         if ((foundMatch && expectedMatchStart<0) ||
    313             (foundStart != expectedMatchStart)   ||
    314             (foundLimit != expectedMatchLimit)) {
    315                 TEST_ASSERT(FALSE);   //  ouput generic error position
    316                 infoln("Found, expected backwards match start = %d, %d \n"
    317                        "Found, expected backwards match limit = %d, %d",
    318                 foundStart, expectedMatchStart, foundLimit, expectedMatchLimit);
    319         }
    320     }
    321 #endif
    322 }
    323 
    324 struct Order
    325 {
    326     int32_t order;
    327     int32_t lowOffset;
    328     int32_t highOffset;
    329 };
    330 
    331 class OrderList
    332 {
    333 public:
    334     OrderList();
    335     OrderList(UCollator *coll, const UnicodeString &string, int32_t stringOffset = 0);
    336     ~OrderList();
    337 
    338     int32_t size(void) const;
    339     void add(int32_t order, int32_t low, int32_t high);
    340     const Order *get(int32_t index) const;
    341     int32_t getLowOffset(int32_t index) const;
    342     int32_t getHighOffset(int32_t index) const;
    343     int32_t getOrder(int32_t index) const;
    344     void reverse(void);
    345     UBool compare(const OrderList &other) const;
    346     UBool matchesAt(int32_t offset, const OrderList &other) const;
    347 
    348 private:
    349     Order *list;
    350     int32_t listMax;
    351     int32_t listSize;
    352 };
    353 
    354 OrderList::OrderList()
    355   : list(NULL),  listMax(16), listSize(0)
    356 {
    357     list = new Order[listMax];
    358 }
    359 
    360 OrderList::OrderList(UCollator *coll, const UnicodeString &string, int32_t stringOffset)
    361     : list(NULL), listMax(16), listSize(0)
    362 {
    363     UErrorCode status = U_ZERO_ERROR;
    364     UCollationElements *elems = ucol_openElements(coll, string.getBuffer(), string.length(), &status);
    365     uint32_t strengthMask = 0;
    366     int32_t order, low, high;
    367 
    368     switch (ucol_getStrength(coll))
    369     {
    370     default:
    371         strengthMask |= UCOL_TERTIARYORDERMASK;
    372         U_FALLTHROUGH;
    373     case UCOL_SECONDARY:
    374         strengthMask |= UCOL_SECONDARYORDERMASK;
    375         U_FALLTHROUGH;
    376     case UCOL_PRIMARY:
    377         strengthMask |= UCOL_PRIMARYORDERMASK;
    378     }
    379 
    380     list = new Order[listMax];
    381 
    382     ucol_setOffset(elems, stringOffset, &status);
    383 
    384     do {
    385         low   = ucol_getOffset(elems);
    386         order = ucol_next(elems, &status);
    387         high  = ucol_getOffset(elems);
    388 
    389         if (order != UCOL_NULLORDER) {
    390             order &= strengthMask;
    391         }
    392 
    393         if (order != UCOL_IGNORABLE) {
    394             add(order, low, high);
    395         }
    396     } while (order != UCOL_NULLORDER);
    397 
    398     ucol_closeElements(elems);
    399 }
    400 
    401 OrderList::~OrderList()
    402 {
    403     delete[] list;
    404 }
    405 
    406 void OrderList::add(int32_t order, int32_t low, int32_t high)
    407 {
    408     if (listSize >= listMax) {
    409         listMax *= 2;
    410 
    411         Order *newList = new Order[listMax];
    412 
    413         uprv_memcpy(newList, list, listSize * sizeof(Order));
    414         delete[] list;
    415         list = newList;
    416     }
    417 
    418     list[listSize].order      = order;
    419     list[listSize].lowOffset  = low;
    420     list[listSize].highOffset = high;
    421 
    422     listSize += 1;
    423 }
    424 
    425 const Order *OrderList::get(int32_t index) const
    426 {
    427     if (index >= listSize) {
    428         return NULL;
    429     }
    430 
    431     return &list[index];
    432 }
    433 
    434 int32_t OrderList::getLowOffset(int32_t index) const
    435 {
    436     const Order *order = get(index);
    437 
    438     if (order != NULL) {
    439         return order->lowOffset;
    440     }
    441 
    442     return -1;
    443 }
    444 
    445 int32_t OrderList::getHighOffset(int32_t index) const
    446 {
    447     const Order *order = get(index);
    448 
    449     if (order != NULL) {
    450         return order->highOffset;
    451     }
    452 
    453     return -1;
    454 }
    455 
    456 int32_t OrderList::getOrder(int32_t index) const
    457 {
    458     const Order *order = get(index);
    459 
    460     if (order != NULL) {
    461         return order->order;
    462     }
    463 
    464     return UCOL_NULLORDER;
    465 }
    466 
    467 int32_t OrderList::size() const
    468 {
    469     return listSize;
    470 }
    471 
    472 void OrderList::reverse()
    473 {
    474     for(int32_t f = 0, b = listSize - 1; f < b; f += 1, b -= 1) {
    475         Order swap = list[b];
    476 
    477         list[b] = list[f];
    478         list[f] = swap;
    479     }
    480 }
    481 
    482 UBool OrderList::compare(const OrderList &other) const
    483 {
    484     if (listSize != other.listSize) {
    485         return FALSE;
    486     }
    487 
    488     for(int32_t i = 0; i < listSize; i += 1) {
    489         if (list[i].order  != other.list[i].order ||
    490             list[i].lowOffset != other.list[i].lowOffset ||
    491             list[i].highOffset != other.list[i].highOffset) {
    492                 return FALSE;
    493         }
    494     }
    495 
    496     return TRUE;
    497 }
    498 
    499 UBool OrderList::matchesAt(int32_t offset, const OrderList &other) const
    500 {
    501     // NOTE: sizes include the NULLORDER, which we don't want to compare.
    502     int32_t otherSize = other.size() - 1;
    503 
    504     if (listSize - 1 - offset < otherSize) {
    505         return FALSE;
    506     }
    507 
    508     for (int32_t i = offset, j = 0; j < otherSize; i += 1, j += 1) {
    509         if (getOrder(i) != other.getOrder(j)) {
    510             return FALSE;
    511         }
    512     }
    513 
    514     return TRUE;
    515 }
    516 
    517 static char *printOffsets(char *buffer, OrderList &list)
    518 {
    519     int32_t size = list.size();
    520     char *s = buffer;
    521 
    522     for(int32_t i = 0; i < size; i += 1) {
    523         const Order *order = list.get(i);
    524 
    525         if (i != 0) {
    526             s += sprintf(s, ", ");
    527         }
    528 
    529         s += sprintf(s, "(%d, %d)", order->lowOffset, order->highOffset);
    530     }
    531 
    532     return buffer;
    533 }
    534 
    535 static char *printOrders(char *buffer, OrderList &list)
    536 {
    537     int32_t size = list.size();
    538     char *s = buffer;
    539 
    540     for(int32_t i = 0; i < size; i += 1) {
    541         const Order *order = list.get(i);
    542 
    543         if (i != 0) {
    544             s += sprintf(s, ", ");
    545         }
    546 
    547         s += sprintf(s, "%8.8X", order->order);
    548     }
    549 
    550     return buffer;
    551 }
    552 
    553 void SSearchTest::offsetTest()
    554 {
    555     const char *test[] = {
    556         // The sequence \u0FB3\u0F71\u0F71\u0F80 contains a discontiguous
    557         // contraction (\u0FB3\u0F71\u0F80) logically followed by \u0F71.
    558         "\\u1E33\\u0FB3\\u0F71\\u0F71\\u0F80\\uD835\\uDF6C\\u01B0",
    559 
    560         "\\ua191\\u16ef\\u2036\\u017a",
    561 
    562 #if 0
    563         // This results in a complex interaction between contraction,
    564         // expansion and normalization that confuses the backwards offset fixups.
    565         "\\u0F7F\\u0F80\\u0F81\\u0F82\\u0F83\\u0F84\\u0F85",
    566 #endif
    567 
    568         "\\u0F80\\u0F81\\u0F82\\u0F83\\u0F84\\u0F85",
    569         "\\u07E9\\u07EA\\u07F1\\u07F2\\u07F3",
    570 
    571         "\\u02FE\\u02FF"
    572         "\\u0300\\u0301\\u0302\\u0303\\u0304\\u0305\\u0306\\u0307\\u0308\\u0309\\u030A\\u030B\\u030C\\u030D\\u030E\\u030F"
    573         "\\u0310\\u0311\\u0312\\u0313\\u0314\\u0315\\u0316\\u0317\\u0318\\u0319\\u031A\\u031B\\u031C\\u031D\\u031E\\u031F"
    574         "\\u0320\\u0321\\u0322\\u0323\\u0324\\u0325\\u0326\\u0327\\u0328\\u0329\\u032A\\u032B\\u032C\\u032D\\u032E\\u032F"
    575         "\\u0330\\u0331\\u0332\\u0333\\u0334\\u0335\\u0336\\u0337\\u0338\\u0339\\u033A\\u033B\\u033C\\u033D\\u033E\\u033F"
    576         "\\u0340\\u0341\\u0342\\u0343\\u0344\\u0345\\u0346\\u0347\\u0348\\u0349\\u034A\\u034B\\u034C\\u034D\\u034E", // currently not working, see #8081
    577 
    578         "\\u02FE\\u02FF\\u0300\\u0301\\u0302\\u0303\\u0316\\u0317\\u0318", // currently not working, see #8081
    579         "a\\u02FF\\u0301\\u0316", // currently not working, see #8081
    580         "a\\u02FF\\u0316\\u0301",
    581         "a\\u0430\\u0301\\u0316",
    582         "a\\u0430\\u0316\\u0301",
    583         "abc\\u0E41\\u0301\\u0316",
    584         "abc\\u0E41\\u0316\\u0301",
    585         "\\u0E41\\u0301\\u0316",
    586         "\\u0E41\\u0316\\u0301",
    587         "a\\u0301\\u0316",
    588         "a\\u0316\\u0301",
    589         "\\uAC52\\uAC53",
    590         "\\u34CA\\u34CB",
    591         "\\u11ED\\u11EE",
    592         "\\u30C3\\u30D0",
    593         "p\\u00E9ch\\u00E9",
    594         "a\\u0301\\u0325",
    595         "a\\u0300\\u0325",
    596         "a\\u0325\\u0300",
    597         "A\\u0323\\u0300B",
    598         "A\\u0300\\u0323B",
    599         "A\\u0301\\u0323B",
    600         "A\\u0302\\u0301\\u0323B",
    601         "abc",
    602         "ab\\u0300c",
    603         "ab\\u0300\\u0323c",
    604         " \\uD800\\uDC00\\uDC00",
    605         "a\\uD800\\uDC00\\uDC00",
    606         "A\\u0301\\u0301",
    607         "A\\u0301\\u0323",
    608         "A\\u0301\\u0323B",
    609         "B\\u0301\\u0323C",
    610         "A\\u0300\\u0323B",
    611         "\\u0301A\\u0301\\u0301",
    612         "abcd\\r\\u0301",
    613         "p\\u00EAche",
    614         "pe\\u0302che",
    615     };
    616 
    617     int32_t testCount = UPRV_LENGTHOF(test);
    618     UErrorCode status = U_ZERO_ERROR;
    619     RuleBasedCollator *col = (RuleBasedCollator *) Collator::createInstance(Locale::getEnglish(), status);
    620     if (U_FAILURE(status)) {
    621         errcheckln(status, "Failed to create collator in offsetTest! - %s", u_errorName(status));
    622         return;
    623     }
    624     char buffer[4096];  // A bit of a hack... just happens to be long enough for all the test cases...
    625                         // We could allocate one that's the right size by (CE_count * 10) + 2
    626                         // 10 chars is enough room for 8 hex digits plus ", ". 2 extra chars for "[" and "]"
    627 
    628     col->setAttribute(UCOL_NORMALIZATION_MODE, UCOL_ON, status);
    629 
    630     for(int32_t i = 0; i < testCount; i += 1) {
    631         UnicodeString ts = CharsToUnicodeString(test[i]);
    632         CollationElementIterator *iter = col->createCollationElementIterator(ts);
    633         OrderList forwardList;
    634         OrderList backwardList;
    635         int32_t order, low, high;
    636 
    637         do {
    638             low   = iter->getOffset();
    639             order = iter->next(status);
    640             high  = iter->getOffset();
    641 
    642             forwardList.add(order, low, high);
    643         } while (order != CollationElementIterator::NULLORDER);
    644 
    645         iter->reset();
    646         iter->setOffset(ts.length(), status);
    647 
    648         backwardList.add(CollationElementIterator::NULLORDER, iter->getOffset(), iter->getOffset());
    649 
    650         do {
    651             high  = iter->getOffset();
    652             order = iter->previous(status);
    653             low   = iter->getOffset();
    654 
    655             if (order == CollationElementIterator::NULLORDER) {
    656                 break;
    657             }
    658 
    659             backwardList.add(order, low, high);
    660         } while (TRUE);
    661 
    662         backwardList.reverse();
    663 
    664         if (forwardList.compare(backwardList)) {
    665             logln("Works with \"%s\"", test[i]);
    666             logln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    667 //          logln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    668 
    669             logln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    670 //          logln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    671 
    672             logln();
    673         } else {
    674             errln("Fails with \"%s\"", test[i]);
    675             infoln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    676             infoln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    677 
    678             infoln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    679             infoln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    680 
    681             infoln();
    682         }
    683         delete iter;
    684     }
    685     delete col;
    686 }
    687 
    688 #if 0
    689 static UnicodeString &escape(const UnicodeString &string, UnicodeString &buffer)
    690 {
    691     for(int32_t i = 0; i < string.length(); i += 1) {
    692         UChar32 ch = string.char32At(i);
    693 
    694         if (ch >= 0x0020 && ch <= 0x007F) {
    695             if (ch == 0x005C) {
    696                 buffer.append("\\\\");
    697             } else {
    698                 buffer.append(ch);
    699             }
    700         } else {
    701             char cbuffer[12];
    702 
    703             if (ch <= 0xFFFFL) {
    704                 sprintf(cbuffer, "\\u%4.4X", ch);
    705             } else {
    706                 sprintf(cbuffer, "\\U%8.8X", ch);
    707             }
    708 
    709             buffer.append(cbuffer);
    710         }
    711 
    712         if (ch >= 0x10000L) {
    713             i += 1;
    714         }
    715     }
    716 
    717     return buffer;
    718 }
    719 #endif
    720 
    721 void SSearchTest::sharpSTest()
    722 {
    723     UErrorCode status = U_ZERO_ERROR;
    724     UCollator *coll = NULL;
    725     UnicodeString lp  = "fuss";
    726     UnicodeString sp = "fu\\u00DF";
    727     UnicodeString targets[]  = {"fu\\u00DF", "fu\\u00DFball", "1fu\\u00DFball", "12fu\\u00DFball", "123fu\\u00DFball", "1234fu\\u00DFball",
    728                                 "ffu\\u00DF", "fufu\\u00DF", "fusfu\\u00DF",
    729                                 "fuss", "ffuss", "fufuss", "fusfuss", "1fuss", "12fuss", "123fuss", "1234fuss", "fu\\u00DF", "1fu\\u00DF", "12fu\\u00DF", "123fu\\u00DF", "1234fu\\u00DF"};
    730     int32_t start = -1, end = -1;
    731 
    732     coll = ucol_openFromShortString("LEN_S1", FALSE, NULL, &status);
    733     TEST_ASSERT_SUCCESS(status);
    734 
    735     UnicodeString lpUnescaped = lp.unescape();
    736     UnicodeString spUnescaped = sp.unescape();
    737 
    738     LocalUStringSearchPointer ussLong(usearch_openFromCollator(lpUnescaped.getBuffer(), lpUnescaped.length(),
    739                                                            lpUnescaped.getBuffer(), lpUnescaped.length(),   // actual test data will be set later
    740                                                            coll,
    741                                                            NULL,     // the break iterator
    742                                                            &status));
    743 
    744     LocalUStringSearchPointer ussShort(usearch_openFromCollator(spUnescaped.getBuffer(), spUnescaped.length(),
    745                                                            spUnescaped.getBuffer(), spUnescaped.length(),   // actual test data will be set later
    746                                                            coll,
    747                                                            NULL,     // the break iterator
    748                                                            &status));
    749     TEST_ASSERT_SUCCESS(status);
    750 
    751     for (uint32_t t = 0; t < UPRV_LENGTHOF(targets); t += 1) {
    752         UBool bFound;
    753         UnicodeString target = targets[t].unescape();
    754 
    755         start = end = -1;
    756         usearch_setText(ussLong.getAlias(), target.getBuffer(), target.length(), &status);
    757         bFound = usearch_search(ussLong.getAlias(), 0, &start, &end, &status);
    758         TEST_ASSERT_SUCCESS(status);
    759         if (bFound) {
    760             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    761         } else {
    762             dataerrln("Test %d: did not find long pattern.", t);
    763         }
    764 
    765         usearch_setText(ussShort.getAlias(), target.getBuffer(), target.length(), &status);
    766         bFound = usearch_search(ussShort.getAlias(), 0, &start, &end, &status);
    767         TEST_ASSERT_SUCCESS(status);
    768         if (bFound) {
    769             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    770         } else {
    771             dataerrln("Test %d: did not find long pattern.", t);
    772         }
    773     }
    774 
    775     ucol_close(coll);
    776 }
    777 
    778 void SSearchTest::goodSuffixTest()
    779 {
    780     UErrorCode status = U_ZERO_ERROR;
    781     UCollator *coll = NULL;
    782     UnicodeString pat = /*"gcagagag"*/ "fxeld";
    783     UnicodeString target = /*"gcatcgcagagagtatacagtacg"*/ "cloveldfxeld";
    784     int32_t start = -1, end = -1;
    785     UBool bFound;
    786 
    787     coll = ucol_open(NULL, &status);
    788     TEST_ASSERT_SUCCESS(status);
    789 
    790     LocalUStringSearchPointer ss(usearch_openFromCollator(pat.getBuffer(), pat.length(),
    791                                                           target.getBuffer(), target.length(),
    792                                                           coll,
    793                                                           NULL,     // the break iterator
    794                                                           &status));
    795     TEST_ASSERT_SUCCESS(status);
    796 
    797     bFound = usearch_search(ss.getAlias(), 0, &start, &end, &status);
    798     TEST_ASSERT_SUCCESS(status);
    799     if (bFound) {
    800         logln("Found pattern at [%d, %d].", start, end);
    801     } else {
    802         dataerrln("Did not find pattern.");
    803     }
    804 
    805     ucol_close(coll);
    806 }
    807 
    808 //
    809 //  searchTime()    A quick and dirty performance test for string search.
    810 //                  Probably  doesn't really belong as part of intltest, but it
    811 //                  does check that the search succeeds, and gets the right result,
    812 //                  so it serves as a functionality test also.
    813 //
    814 //                  To run as a perf test, up the loop count, select by commenting
    815 //                  and uncommenting in the code the operation to be measured,
    816 //                  rebuild, and measure the running time of this test alone.
    817 //
    818 //                     time LD_LIBRARY_PATH=whatever  ./intltest  collate/SSearchTest/searchTime
    819 //
    820 void SSearchTest::searchTime() {
    821     static const char *longishText =
    822 "Whylom, as olde stories tellen us,\n"
    823 "Ther was a duk that highte Theseus:\n"
    824 "Of Athenes he was lord and governour,\n"
    825 "And in his tyme swich a conquerour,\n"
    826 "That gretter was ther noon under the sonne.\n"
    827 "Ful many a riche contree hadde he wonne;\n"
    828 "What with his wisdom and his chivalrye,\n"
    829 "He conquered al the regne of Femenye,\n"
    830 "That whylom was y-cleped Scithia;\n"
    831 "And weddede the quene Ipolita,\n"
    832 "And broghte hir hoom with him in his contree\n"
    833 "With muchel glorie and greet solempnitee,\n"
    834 "And eek hir yonge suster Emelye.\n"
    835 "And thus with victorie and with melodye\n"
    836 "Lete I this noble duk to Athenes ryde,\n"
    837 "And al his hoost, in armes, him bisyde.\n"
    838 "And certes, if it nere to long to here,\n"
    839 "I wolde han told yow fully the manere,\n"
    840 "How wonnen was the regne of Femenye\n"
    841 "By Theseus, and by his chivalrye;\n"
    842 "And of the grete bataille for the nones\n"
    843 "Bitwixen Athen's and Amazones;\n"
    844 "And how asseged was Ipolita,\n"
    845 "The faire hardy quene of Scithia;\n"
    846 "And of the feste that was at hir weddinge,\n"
    847 "And of the tempest at hir hoom-cominge;\n"
    848 "But al that thing I moot as now forbere.\n"
    849 "I have, God woot, a large feeld to ere,\n"
    850 "And wayke been the oxen in my plough.\n"
    851 "The remenant of the tale is long y-nough.\n"
    852 "I wol nat letten eek noon of this route;\n"
    853 "Lat every felawe telle his tale aboute,\n"
    854 "And lat see now who shal the soper winne;\n"
    855 "And ther I lefte, I wol ageyn biginne.\n"
    856 "This duk, of whom I make mencioun,\n"
    857 "When he was come almost unto the toun,\n"
    858 "In al his wele and in his moste pryde,\n"
    859 "He was war, as he caste his eye asyde,\n"
    860 "Wher that ther kneled in the hye weye\n"
    861 "A companye of ladies, tweye and tweye,\n"
    862 "Ech after other, clad in clothes blake; \n"
    863 "But swich a cry and swich a wo they make,\n"
    864 "That in this world nis creature livinge,\n"
    865 "That herde swich another weymentinge;\n"
    866 "And of this cry they nolde never stenten,\n"
    867 "Til they the reynes of his brydel henten.\n"
    868 "'What folk ben ye, that at myn hoomcominge\n"
    869 "Perturben so my feste with cryinge'?\n"
    870 "Quod Theseus, 'have ye so greet envye\n"
    871 "Of myn honour, that thus compleyne and crye? \n"
    872 "Or who hath yow misboden, or offended?\n"
    873 "And telleth me if it may been amended;\n"
    874 "And why that ye ben clothed thus in blak'?\n"
    875 "The eldest lady of hem alle spak,\n"
    876 "When she hadde swowned with a deedly chere,\n"
    877 "That it was routhe for to seen and here,\n"
    878 "And seyde: 'Lord, to whom Fortune hath yiven\n"
    879 "Victorie, and as a conquerour to liven,\n"
    880 "Noght greveth us your glorie and your honour;\n"
    881 "But we biseken mercy and socour.\n"
    882 "Have mercy on our wo and our distresse.\n"
    883 "Som drope of pitee, thurgh thy gentilesse,\n"
    884 "Up-on us wrecched wommen lat thou falle.\n"
    885 "For certes, lord, ther nis noon of us alle,\n"
    886 "That she nath been a duchesse or a quene;\n"
    887 "Now be we caitifs, as it is wel sene:\n"
    888 "Thanked be Fortune, and hir false wheel,\n"
    889 "That noon estat assureth to be weel.\n"
    890 "And certes, lord, t'abyden your presence,\n"
    891 "Here in the temple of the goddesse Clemence\n"
    892 "We han ben waytinge al this fourtenight;\n"
    893 "Now help us, lord, sith it is in thy might.\n"
    894 "I wrecche, which that wepe and waille thus,\n"
    895 "Was whylom wyf to king Capaneus,\n"
    896 "That starf at Thebes, cursed be that day!\n"
    897 "And alle we, that been in this array,\n"
    898 "And maken al this lamentacioun,\n"
    899 "We losten alle our housbondes at that toun,\n"
    900 "Whyl that the sege ther-aboute lay.\n"
    901 "And yet now th'olde Creon, weylaway!\n"
    902 "The lord is now of Thebes the citee, \n"
    903 "Fulfild of ire and of iniquitee,\n"
    904 "He, for despyt, and for his tirannye,\n"
    905 "To do the dede bodyes vileinye,\n"
    906 "Of alle our lordes, whiche that ben slawe,\n"
    907 "Hath alle the bodyes on an heep y-drawe,\n"
    908 "And wol nat suffren hem, by noon assent,\n"
    909 "Neither to been y-buried nor y-brent,\n"
    910 "But maketh houndes ete hem in despyt. zet'\n";
    911 
    912 const char *cPattern = "maketh houndes ete hem";
    913 //const char *cPattern = "Whylom";
    914 //const char *cPattern = "zet";
    915     const char *testId = "searchTime()";   // for error macros.
    916     UnicodeString target = longishText;
    917     UErrorCode status = U_ZERO_ERROR;
    918 
    919 
    920     LocalUCollatorPointer collator(ucol_open("en", &status));
    921     //ucol_setStrength(collator.getAlias(), collatorStrength);
    922     //ucol_setAttribute(collator.getAlias(), UCOL_NORMALIZATION_MODE, normalize, &status);
    923     UnicodeString uPattern = cPattern;
    924     LocalUStringSearchPointer uss(usearch_openFromCollator(uPattern.getBuffer(), uPattern.length(),
    925                                                            target.getBuffer(), target.length(),
    926                                                            collator.getAlias(),
    927                                                            NULL,     // the break iterator
    928                                                            &status));
    929     TEST_ASSERT_SUCCESS(status);
    930 
    931 //  int32_t foundStart;
    932 //  int32_t foundEnd;
    933     UBool   found;
    934 
    935     // Find the match position usgin strstr
    936     const char *pm = strstr(longishText, cPattern);
    937     TEST_ASSERT_M(pm!=NULL, "No pattern match with strstr");
    938     int32_t  refMatchPos = (int32_t)(pm - longishText);
    939     int32_t  icuMatchPos;
    940     int32_t  icuMatchEnd;
    941     usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    942     TEST_ASSERT_SUCCESS(status);
    943     TEST_ASSERT_M(refMatchPos == icuMatchPos, "strstr and icu give different match positions.");
    944 
    945     int32_t i;
    946     // int32_t j=0;
    947 
    948     // Try loopcounts around 100000 to some millions, depending on the operation,
    949     //   to get runtimes of at least several seconds.
    950     for (i=0; i<10000; i++) {
    951         found = usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    952         (void)found;   // Suppress set but not used warning.
    953         //TEST_ASSERT_SUCCESS(status);
    954         //TEST_ASSERT(found);
    955 
    956         // usearch_setOffset(uss.getAlias(), 0, &status);
    957         // icuMatchPos = usearch_next(uss.getAlias(), &status);
    958 
    959          // The i+j stuff is to confuse the optimizer and get it to actually leave the
    960          //   call to strstr in place.
    961          //pm = strstr(longishText+j, cPattern);
    962          //j = (j + i)%5;
    963     }
    964 
    965     //printf("%ld, %d\n", pm-longishText, j);
    966 }
    967 
    968 //----------------------------------------------------------------------------------------
    969 //
    970 //   Random Numbers.  Similar to standard lib rand() and srand()
    971 //                    Not using library to
    972 //                      1.  Get same results on all platforms.
    973 //                      2.  Get access to current seed, to more easily reproduce failures.
    974 //
    975 //---------------------------------------------------------------------------------------
    976 static uint32_t m_seed = 1;
    977 
    978 static uint32_t m_rand()
    979 {
    980     m_seed = m_seed * 1103515245 + 12345;
    981     return (uint32_t)(m_seed/65536) % 32768;
    982 }
    983 
    984 class Monkey
    985 {
    986 public:
    987     virtual void append(UnicodeString &test, UnicodeString &alternate) = 0;
    988 
    989 protected:
    990     Monkey();
    991     virtual ~Monkey();
    992 };
    993 
    994 Monkey::Monkey()
    995 {
    996     // ook?
    997 }
    998 
    999 Monkey::~Monkey()
   1000 {
   1001     // ook?
   1002 }
   1003 
   1004 class SetMonkey : public Monkey
   1005 {
   1006 public:
   1007     SetMonkey(const USet *theSet);
   1008     ~SetMonkey();
   1009 
   1010     virtual void append(UnicodeString &test, UnicodeString &alternate);
   1011 
   1012 private:
   1013     const USet *set;
   1014 };
   1015 
   1016 SetMonkey::SetMonkey(const USet *theSet)
   1017     : Monkey(), set(theSet)
   1018 {
   1019     // ook?
   1020 }
   1021 
   1022 SetMonkey::~SetMonkey()
   1023 {
   1024     //ook...
   1025 }
   1026 
   1027 void SetMonkey::append(UnicodeString &test, UnicodeString &alternate)
   1028 {
   1029     int32_t size = uset_size(set);
   1030     int32_t index = m_rand() % size;
   1031     UChar32 ch = uset_charAt(set, index);
   1032     UnicodeString str(ch);
   1033 
   1034     test.append(str);
   1035     alternate.append(str); // flip case, or some junk?
   1036 }
   1037 
   1038 class StringSetMonkey : public Monkey
   1039 {
   1040 public:
   1041     StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData);
   1042     ~StringSetMonkey();
   1043 
   1044     void append(UnicodeString &testCase, UnicodeString &alternate);
   1045 
   1046 private:
   1047     UnicodeString &generateAlternative(const UnicodeString &testCase, UnicodeString &alternate);
   1048 
   1049     const USet *set;
   1050     UCollator  *coll;
   1051     CollData   *collData;
   1052 };
   1053 
   1054 StringSetMonkey::StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData)
   1055 : Monkey(), set(theSet), coll(theCollator), collData(theCollData)
   1056 {
   1057     // ook.
   1058 }
   1059 
   1060 StringSetMonkey::~StringSetMonkey()
   1061 {
   1062     // ook?
   1063 }
   1064 
   1065 void StringSetMonkey::append(UnicodeString &testCase, UnicodeString &alternate)
   1066 {
   1067     int32_t itemCount = uset_getItemCount(set), len = 0;
   1068     int32_t index = m_rand() % itemCount;
   1069     UChar32 rangeStart = 0, rangeEnd = 0;
   1070     UChar buffer[16];
   1071     UErrorCode err = U_ZERO_ERROR;
   1072 
   1073     len = uset_getItem(set, index, &rangeStart, &rangeEnd, buffer, 16, &err);
   1074 
   1075     if (len == 0) {
   1076         int32_t offset = m_rand() % (rangeEnd - rangeStart + 1);
   1077         UChar32 ch = rangeStart + offset;
   1078         UnicodeString str(ch);
   1079 
   1080         testCase.append(str);
   1081         generateAlternative(str, alternate);
   1082     } else if (len > 0) {
   1083         // should check that len < 16...
   1084         UnicodeString str(buffer, len);
   1085 
   1086         testCase.append(str);
   1087         generateAlternative(str, alternate);
   1088     } else {
   1089         // shouldn't happen...
   1090     }
   1091 }
   1092 
   1093 UnicodeString &StringSetMonkey::generateAlternative(const UnicodeString &testCase, UnicodeString &alternate)
   1094 {
   1095     // find out shortest string for the longest sequence of ces.
   1096     // needs to be refined to use dynamic programming, but will be roughly right
   1097     UErrorCode status = U_ZERO_ERROR;
   1098     CEList ceList(coll, testCase, status);
   1099     UnicodeString alt;
   1100     int32_t offset = 0;
   1101 
   1102     if (ceList.size() == 0) {
   1103         return alternate.append(testCase);
   1104     }
   1105 
   1106     while (offset < ceList.size()) {
   1107         int32_t ce = ceList.get(offset);
   1108         const StringList *strings = collData->getStringList(ce);
   1109 
   1110         if (strings == NULL) {
   1111             return alternate.append(testCase);
   1112         }
   1113 
   1114         int32_t stringCount = strings->size();
   1115         int32_t tries = 0;
   1116 
   1117         // find random string that generates the same CEList
   1118         const CEList *ceList2 = NULL;
   1119         const UnicodeString *string = NULL;
   1120               UBool matches = FALSE;
   1121 
   1122         do {
   1123             int32_t s = m_rand() % stringCount;
   1124 
   1125             if (tries++ > stringCount) {
   1126                 alternate.append(testCase);
   1127                 return alternate;
   1128             }
   1129 
   1130             string = strings->get(s);
   1131             ceList2 = collData->getCEList(string);
   1132             matches = ceList.matchesAt(offset, ceList2);
   1133 
   1134             if (! matches) {
   1135                 collData->freeCEList((CEList *) ceList2);
   1136             }
   1137         } while (! matches);
   1138 
   1139         alt.append(*string);
   1140         offset += ceList2->size();
   1141         collData->freeCEList(ceList2);
   1142     }
   1143 
   1144     const CEList altCEs(coll, alt, status);
   1145 
   1146     if (ceList.matchesAt(0, &altCEs)) {
   1147         return alternate.append(alt);
   1148     }
   1149 
   1150     return alternate.append(testCase);
   1151 }
   1152 
   1153 static void generateTestCase(UCollator *coll, Monkey *monkeys[], int32_t monkeyCount, UnicodeString &testCase, UnicodeString &alternate)
   1154 {
   1155     int32_t pieces = (m_rand() % 4) + 1;
   1156     UErrorCode status = U_ZERO_ERROR;
   1157     UBool matches;
   1158 
   1159     do {
   1160         testCase.remove();
   1161         alternate.remove();
   1162         monkeys[0]->append(testCase, alternate);
   1163 
   1164         for(int32_t piece = 0; piece < pieces; piece += 1) {
   1165             int32_t monkey = m_rand() % monkeyCount;
   1166 
   1167             monkeys[monkey]->append(testCase, alternate);
   1168         }
   1169 
   1170         const CEList ceTest(coll, testCase, status);
   1171         const CEList ceAlt(coll, alternate, status);
   1172 
   1173         matches = ceTest.matchesAt(0, &ceAlt);
   1174     } while (! matches);
   1175 }
   1176 
   1177 static UBool simpleSearch(UCollator *coll, const UnicodeString &target, int32_t offset, const UnicodeString &pattern, int32_t &matchStart, int32_t &matchEnd)
   1178 {
   1179     UErrorCode      status = U_ZERO_ERROR;
   1180     OrderList       targetOrders(coll, target, offset);
   1181     OrderList       patternOrders(coll, pattern);
   1182     int32_t         targetSize  = targetOrders.size() - 1;
   1183     int32_t         patternSize = patternOrders.size() - 1;
   1184     UBreakIterator *charBreakIterator = ubrk_open(UBRK_CHARACTER, ucol_getLocaleByType(coll, ULOC_VALID_LOCALE, &status),
   1185                                                   target.getBuffer(), target.length(), &status);
   1186 
   1187     if (patternSize == 0) {
   1188         // Searching for an empty pattern always fails
   1189         matchStart = matchEnd = -1;
   1190         ubrk_close(charBreakIterator);
   1191         return FALSE;
   1192     }
   1193 
   1194     matchStart = matchEnd = -1;
   1195 
   1196     for(int32_t i = 0; i < targetSize; i += 1) {
   1197         if (targetOrders.matchesAt(i, patternOrders)) {
   1198             int32_t start    = targetOrders.getLowOffset(i);
   1199             int32_t maxLimit = targetOrders.getLowOffset(i + patternSize);
   1200             int32_t minLimit = targetOrders.getLowOffset(i + patternSize - 1);
   1201 
   1202             // if the low and high offsets of the first CE in
   1203             // the match are the same, it means that the match
   1204             // starts in the middle of an expansion - all but
   1205             // the first CE of the expansion will have the offset
   1206             // of the following character.
   1207             if (start == targetOrders.getHighOffset(i)) {
   1208                 continue;
   1209             }
   1210 
   1211             // Make sure match starts on a grapheme boundary
   1212             if (! ubrk_isBoundary(charBreakIterator, start)) {
   1213                 continue;
   1214             }
   1215 
   1216             // If the low and high offsets of the CE after the match
   1217             // are the same, it means that the match ends in the middle
   1218             // of an expansion sequence.
   1219             if (maxLimit == targetOrders.getHighOffset(i + patternSize) &&
   1220                 targetOrders.getOrder(i + patternSize) != UCOL_NULLORDER) {
   1221                 continue;
   1222             }
   1223 
   1224             int32_t mend = maxLimit;
   1225 
   1226             // Find the first grapheme break after the character index
   1227             // of the last CE in the match. If it's after character index
   1228             // that's after the last CE in the match, use that index
   1229             // as the end of the match.
   1230             if (minLimit < maxLimit) {
   1231                 // When the last CE's low index is same with its high index, the CE is likely
   1232                 // a part of expansion. In this case, the index is located just after the
   1233                 // character corresponding to the CEs compared above. If the index is right
   1234                 // at the break boundary, move the position to the next boundary will result
   1235                 // incorrect match length when there are ignorable characters exist between
   1236                 // the position and the next character produces CE(s). See ticket#8482.
   1237                 if (minLimit == targetOrders.getHighOffset(i + patternSize - 1) && ubrk_isBoundary(charBreakIterator, minLimit)) {
   1238                     mend = minLimit;
   1239                 } else {
   1240                     int32_t nba = ubrk_following(charBreakIterator, minLimit);
   1241 
   1242                     if (nba >= targetOrders.getHighOffset(i + patternSize - 1)) {
   1243                         mend = nba;
   1244                     }
   1245                 }
   1246             }
   1247 
   1248             if (mend > maxLimit) {
   1249                 continue;
   1250             }
   1251 
   1252             if (! ubrk_isBoundary(charBreakIterator, mend)) {
   1253                 continue;
   1254             }
   1255 
   1256             matchStart = start;
   1257             matchEnd   = mend;
   1258 
   1259             ubrk_close(charBreakIterator);
   1260             return TRUE;
   1261         }
   1262     }
   1263 
   1264     ubrk_close(charBreakIterator);
   1265     return FALSE;
   1266 }
   1267 
   1268 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1269 static int32_t  getIntParam(UnicodeString name, UnicodeString &params, int32_t defaultVal) {
   1270     int32_t val = defaultVal;
   1271 
   1272     name.append(" *= *(-?\\d+)");
   1273 
   1274     UErrorCode status = U_ZERO_ERROR;
   1275     RegexMatcher m(name, params, 0, status);
   1276 
   1277     if (m.find()) {
   1278         // The param exists.  Convert the string to an int.
   1279         char valString[100];
   1280         int32_t paramLength = m.end(1, status) - m.start(1, status);
   1281 
   1282         if (paramLength >= (int32_t)(sizeof(valString)-1)) {
   1283             paramLength = (int32_t)(sizeof(valString)-2);
   1284         }
   1285 
   1286         params.extract(m.start(1, status), paramLength, valString, sizeof(valString));
   1287         val = uprv_strtol(valString,  NULL, 10);
   1288 
   1289         // Delete this parameter from the params string.
   1290         m.reset();
   1291         params = m.replaceFirst("", status);
   1292     }
   1293 
   1294   //U_ASSERT(U_SUCCESS(status));
   1295     if (! U_SUCCESS(status)) {
   1296         val = defaultVal;
   1297     }
   1298 
   1299     return val;
   1300 }
   1301 #endif
   1302 
   1303 #if !UCONFIG_NO_COLLATION
   1304 int32_t SSearchTest::monkeyTestCase(UCollator *coll, const UnicodeString &testCase, const UnicodeString &pattern, const UnicodeString &altPattern,
   1305                                     const char *name, const char *strength, uint32_t seed)
   1306 {
   1307     UErrorCode status = U_ZERO_ERROR;
   1308     int32_t actualStart = -1, actualEnd = -1;
   1309   //int32_t expectedStart = prefix.length(), expectedEnd = prefix.length() + altPattern.length();
   1310     int32_t expectedStart = -1, expectedEnd = -1;
   1311     int32_t notFoundCount = 0;
   1312     LocalUStringSearchPointer uss(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
   1313                                                            testCase.getBuffer(), testCase.length(),
   1314                                                            coll,
   1315                                                            NULL,     // the break iterator
   1316                                                            &status));
   1317 
   1318     // **** TODO: find *all* matches, not just first one ****
   1319     simpleSearch(coll, testCase, 0, pattern, expectedStart, expectedEnd);
   1320 
   1321     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1322 
   1323     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1324         errln("Search for <pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1325               "    strength=%s seed=%d",
   1326               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1327     }
   1328 
   1329     if (expectedStart == -1 && actualStart == -1) {
   1330         notFoundCount += 1;
   1331     }
   1332 
   1333     // **** TODO: find *all* matches, not just first one ****
   1334     simpleSearch(coll, testCase, 0, altPattern, expectedStart, expectedEnd);
   1335 
   1336     usearch_setPattern(uss.getAlias(), altPattern.getBuffer(), altPattern.length(), &status);
   1337 
   1338     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1339 
   1340     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1341         errln("Search for <alt_pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1342               "    strength=%s seed=%d",
   1343               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1344     }
   1345 
   1346     if (expectedStart == -1 && actualStart == -1) {
   1347         notFoundCount += 1;
   1348     }
   1349 
   1350     return notFoundCount;
   1351 }
   1352 #endif
   1353 
   1354 void SSearchTest::monkeyTest(char *params)
   1355 {
   1356     // ook!
   1357     UErrorCode status = U_ZERO_ERROR;
   1358   //UCollator *coll = ucol_open(NULL, &status);
   1359     UCollator *coll = ucol_openFromShortString("S1", FALSE, NULL, &status);
   1360 
   1361     if (U_FAILURE(status)) {
   1362         errcheckln(status, "Failed to create collator in MonkeyTest! - %s", u_errorName(status));
   1363         return;
   1364     }
   1365 
   1366     CollData  *monkeyData = new CollData(coll, status);
   1367 
   1368     USet *expansions   = uset_openEmpty();
   1369     USet *contractions = uset_openEmpty();
   1370 
   1371     ucol_getContractionsAndExpansions(coll, contractions, expansions, FALSE, &status);
   1372 
   1373     U_STRING_DECL(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1374     U_STRING_INIT(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1375     USet *letters = uset_openPattern(letter_pattern, 39, &status);
   1376     SetMonkey letterMonkey(letters);
   1377     StringSetMonkey contractionMonkey(contractions, coll, monkeyData);
   1378     StringSetMonkey expansionMonkey(expansions, coll, monkeyData);
   1379     UnicodeString testCase;
   1380     UnicodeString alternate;
   1381     UnicodeString pattern, altPattern;
   1382     UnicodeString prefix, altPrefix;
   1383     UnicodeString suffix, altSuffix;
   1384 
   1385     Monkey *monkeys[] = {
   1386         &letterMonkey,
   1387         &contractionMonkey,
   1388         &expansionMonkey,
   1389         &contractionMonkey,
   1390         &expansionMonkey,
   1391         &contractionMonkey,
   1392         &expansionMonkey,
   1393         &contractionMonkey,
   1394         &expansionMonkey};
   1395     int32_t monkeyCount = UPRV_LENGTHOF(monkeys);
   1396     // int32_t nonMatchCount = 0;
   1397 
   1398     UCollationStrength strengths[] = {UCOL_PRIMARY, UCOL_SECONDARY, UCOL_TERTIARY};
   1399     const char *strengthNames[] = {"primary", "secondary", "tertiary"};
   1400     int32_t strengthCount = UPRV_LENGTHOF(strengths);
   1401     int32_t loopCount = quick? 1000 : 10000;
   1402     int32_t firstStrength = 0;
   1403     int32_t lastStrength  = strengthCount - 1; //*/ 0;
   1404 
   1405     if (params != NULL) {
   1406 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1407         UnicodeString p(params);
   1408 
   1409         loopCount = getIntParam("loop", p, loopCount);
   1410         m_seed    = getIntParam("seed", p, m_seed);
   1411 
   1412         RegexMatcher m(" *strength *= *(primary|secondary|tertiary) *", p, 0, status);
   1413         if (m.find()) {
   1414             UnicodeString breakType = m.group(1, status);
   1415 
   1416             for (int32_t s = 0; s < strengthCount; s += 1) {
   1417                 if (breakType == strengthNames[s]) {
   1418                     firstStrength = lastStrength = s;
   1419                     break;
   1420                 }
   1421             }
   1422 
   1423             m.reset();
   1424             p = m.replaceFirst("", status);
   1425         }
   1426 
   1427         if (RegexMatcher("\\S", p, 0, status).find()) {
   1428             // Each option is stripped out of the option string as it is processed.
   1429             // All options have been checked.  The option string should have been completely emptied..
   1430             char buf[100];
   1431             p.extract(buf, sizeof(buf), NULL, status);
   1432             buf[sizeof(buf)-1] = 0;
   1433             errln("Unrecognized or extra parameter:  %s\n", buf);
   1434             return;
   1435         }
   1436 #else
   1437         infoln("SSearchTest built with UCONFIG_NO_REGULAR_EXPRESSIONS: ignoring parameters.");
   1438 #endif
   1439     }
   1440 
   1441     for(int32_t s = firstStrength; s <= lastStrength; s += 1) {
   1442         int32_t notFoundCount = 0;
   1443 
   1444         logln("Setting strength to %s.", strengthNames[s]);
   1445         ucol_setStrength(coll, strengths[s]);
   1446 
   1447         // TODO: try alternate prefix and suffix too?
   1448         // TODO: alternates are only equal at primary strength. Is this OK?
   1449         for(int32_t t = 0; t < loopCount; t += 1) {
   1450             uint32_t seed = m_seed;
   1451             // int32_t  nmc = 0;
   1452 
   1453             generateTestCase(coll, monkeys, monkeyCount, pattern, altPattern);
   1454             generateTestCase(coll, monkeys, monkeyCount, prefix,  altPrefix);
   1455             generateTestCase(coll, monkeys, monkeyCount, suffix,  altSuffix);
   1456 
   1457             // pattern
   1458             notFoundCount += monkeyTestCase(coll, pattern, pattern, altPattern, "pattern", strengthNames[s], seed);
   1459 
   1460             testCase.remove();
   1461             testCase.append(prefix);
   1462             testCase.append(/*alt*/pattern);
   1463 
   1464             // prefix + pattern
   1465             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern", strengthNames[s], seed);
   1466 
   1467             testCase.append(suffix);
   1468 
   1469             // prefix + pattern + suffix
   1470             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern + suffix", strengthNames[s], seed);
   1471 
   1472             testCase.remove();
   1473             testCase.append(pattern);
   1474             testCase.append(suffix);
   1475 
   1476             // pattern + suffix
   1477             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "pattern + suffix", strengthNames[s], seed);
   1478         }
   1479 
   1480        logln("For strength %s the not found count is %d.", strengthNames[s], notFoundCount);
   1481     }
   1482 
   1483     uset_close(contractions);
   1484     uset_close(expansions);
   1485     uset_close(letters);
   1486     delete monkeyData;
   1487 
   1488     ucol_close(coll);
   1489 }
   1490 
   1491 #endif
   1492 
   1493 #endif
   1494