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      1 /*
      2  **********************************************************************
      3  *   Copyright (C) 2005-2014, International Business Machines
      4  *   Corporation and others.  All Rights Reserved.
      5  **********************************************************************
      6  */
      7 
      8 #include "unicode/utypes.h"
      9 
     10 #if !UCONFIG_NO_COLLATION
     11 
     12 #include "cmemory.h"
     13 #include "cstring.h"
     14 #include "usrchimp.h"
     15 
     16 #include "unicode/coll.h"
     17 #include "unicode/tblcoll.h"
     18 #include "unicode/usearch.h"
     19 #include "unicode/uset.h"
     20 #include "unicode/ustring.h"
     21 
     22 #include "unicode/coleitr.h"
     23 #include "unicode/regex.h"        // TODO: make conditional on regexp being built.
     24 
     25 #include "colldata.h"
     26 #include "ssearch.h"
     27 #include "xmlparser.h"
     28 
     29 #include <stdio.h>  // for sprintf
     30 
     31 char testId[100];
     32 
     33 #define TEST_ASSERT(x) {if (!(x)) { \
     34     errln("Failure in file %s, line %d, test ID = \"%s\"", __FILE__, __LINE__, testId);}}
     35 
     36 #define TEST_ASSERT_M(x, m) {if (!(x)) { \
     37     dataerrln("Failure in file %s, line %d.   \"%s\"", __FILE__, __LINE__, m);return;}}
     38 
     39 #define TEST_ASSERT_SUCCESS(errcode) {if (U_FAILURE(errcode)) { \
     40     dataerrln("Failure in file %s, line %d, test ID \"%s\", status = \"%s\"", \
     41           __FILE__, __LINE__, testId, u_errorName(errcode));}}
     42 
     43 #define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
     44 #define NEW_ARRAY(type, count) (type *) uprv_malloc((count) * sizeof(type))
     45 #define DELETE_ARRAY(array) uprv_free((void *) (array))
     46 
     47 //---------------------------------------------------------------------------
     48 //
     49 //  Test class boilerplate
     50 //
     51 //---------------------------------------------------------------------------
     52 SSearchTest::SSearchTest()
     53 {
     54 }
     55 
     56 SSearchTest::~SSearchTest()
     57 {
     58 }
     59 
     60 void SSearchTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char *params )
     61 {
     62     if (exec) logln("TestSuite SSearchTest: ");
     63     switch (index) {
     64 #if !UCONFIG_NO_BREAK_ITERATION
     65        case 0: name = "searchTest";
     66             if (exec) searchTest();
     67             break;
     68 
     69         case 1: name = "offsetTest";
     70             if (exec) offsetTest();
     71             break;
     72 
     73         case 2: name = "monkeyTest";
     74             if (exec) monkeyTest(params);
     75             break;
     76 
     77         case 3: name = "sharpSTest";
     78             if (exec) sharpSTest();
     79             break;
     80 
     81         case 4: name = "goodSuffixTest";
     82             if (exec) goodSuffixTest();
     83             break;
     84 
     85         case 5: name = "searchTime";
     86             if (exec) searchTime();
     87             break;
     88 #endif
     89         default: name = "";
     90             break; //needed to end loop
     91     }
     92 }
     93 
     94 
     95 #if !UCONFIG_NO_BREAK_ITERATION
     96 
     97 #define PATH_BUFFER_SIZE 2048
     98 const char *SSearchTest::getPath(char buffer[2048], const char *filename) {
     99     UErrorCode status = U_ZERO_ERROR;
    100     const char *testDataDirectory = IntlTest::getSourceTestData(status);
    101 
    102     if (U_FAILURE(status) || strlen(testDataDirectory) + strlen(filename) + 1 >= PATH_BUFFER_SIZE) {
    103         errln("ERROR: getPath() failed - %s", u_errorName(status));
    104         return NULL;
    105     }
    106 
    107     strcpy(buffer, testDataDirectory);
    108     strcat(buffer, filename);
    109     return buffer;
    110 }
    111 
    112 
    113 void SSearchTest::searchTest()
    114 {
    115 #if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_FILE_IO
    116     UErrorCode status = U_ZERO_ERROR;
    117     char path[PATH_BUFFER_SIZE];
    118     const char *testFilePath = getPath(path, "ssearch.xml");
    119 
    120     if (testFilePath == NULL) {
    121         return; /* Couldn't get path: error message already output. */
    122     }
    123 
    124     LocalPointer<UXMLParser> parser(UXMLParser::createParser(status));
    125     TEST_ASSERT_SUCCESS(status);
    126     LocalPointer<UXMLElement> root(parser->parseFile(testFilePath, status));
    127     TEST_ASSERT_SUCCESS(status);
    128     if (U_FAILURE(status)) {
    129         return;
    130     }
    131 
    132     const UnicodeString *debugTestCase = root->getAttribute("debug");
    133     if (debugTestCase != NULL) {
    134 //       setenv("USEARCH_DEBUG", "1", 1);
    135     }
    136 
    137 
    138     const UXMLElement *testCase;
    139     int32_t tc = 0;
    140 
    141     while((testCase = root->nextChildElement(tc)) != NULL) {
    142 
    143         if (testCase->getTagName().compare("test-case") != 0) {
    144             errln("ssearch, unrecognized XML Element in test file");
    145             continue;
    146         }
    147         const UnicodeString *id       = testCase->getAttribute("id");
    148         *testId = 0;
    149         if (id != NULL) {
    150             id->extract(0, id->length(), testId,  sizeof(testId), US_INV);
    151         }
    152 
    153         // If debugging test case has been specified and this is not it, skip to next.
    154         if (id!=NULL && debugTestCase!=NULL && *id != *debugTestCase) {
    155             continue;
    156         }
    157         //
    158         //  Get the requested collation strength.
    159         //    Default is tertiary if the XML attribute is missing from the test case.
    160         //
    161         const UnicodeString *strength = testCase->getAttribute("strength");
    162         UColAttributeValue collatorStrength = UCOL_PRIMARY;
    163         if      (strength==NULL)          { collatorStrength = UCOL_TERTIARY;}
    164         else if (*strength=="PRIMARY")    { collatorStrength = UCOL_PRIMARY;}
    165         else if (*strength=="SECONDARY")  { collatorStrength = UCOL_SECONDARY;}
    166         else if (*strength=="TERTIARY")   { collatorStrength = UCOL_TERTIARY;}
    167         else if (*strength=="QUATERNARY") { collatorStrength = UCOL_QUATERNARY;}
    168         else if (*strength=="IDENTICAL")  { collatorStrength = UCOL_IDENTICAL;}
    169         else {
    170             // Bogus value supplied for strength.  Shouldn't happen, even from
    171             //  typos, if the  XML source has been validated.
    172             //  This assert is a little deceiving in that strength can be
    173             //   any of the allowed values, not just TERTIARY, but it will
    174             //   do the job of getting the error output.
    175             TEST_ASSERT(*strength=="TERTIARY")
    176         }
    177 
    178         //
    179         // Get the collator normalization flag.  Default is UCOL_OFF.
    180         //
    181         UColAttributeValue normalize = UCOL_OFF;
    182         const UnicodeString *norm = testCase->getAttribute("norm");
    183         TEST_ASSERT (norm==NULL || *norm=="ON" || *norm=="OFF");
    184         if (norm!=NULL && *norm=="ON") {
    185             normalize = UCOL_ON;
    186         }
    187 
    188         //
    189         // Get the alternate_handling flag. Default is UCOL_NON_IGNORABLE.
    190         //
    191         UColAttributeValue alternateHandling = UCOL_NON_IGNORABLE;
    192         const UnicodeString *alt = testCase->getAttribute("alternate_handling");
    193         TEST_ASSERT (alt == NULL || *alt == "SHIFTED" || *alt == "NON_IGNORABLE");
    194         if (alt != NULL && *alt == "SHIFTED") {
    195             alternateHandling = UCOL_SHIFTED;
    196         }
    197 
    198         const UnicodeString defLocale("en");
    199         char  clocale[100];
    200         const UnicodeString *locale   = testCase->getAttribute("locale");
    201         if (locale == NULL || locale->length()==0) {
    202             locale = &defLocale;
    203         };
    204         locale->extract(0, locale->length(), clocale, sizeof(clocale), NULL);
    205 
    206 
    207         UnicodeString  text;
    208         UnicodeString  target;
    209         UnicodeString  pattern;
    210         int32_t        expectedMatchStart = -1;
    211         int32_t        expectedMatchLimit = -1;
    212         const UXMLElement  *n;
    213         int32_t                nodeCount = 0;
    214 
    215         n = testCase->getChildElement("pattern");
    216         TEST_ASSERT(n != NULL);
    217         if (n==NULL) {
    218             continue;
    219         }
    220         text = n->getText(FALSE);
    221         text = text.unescape();
    222         pattern.append(text);
    223         nodeCount++;
    224 
    225         n = testCase->getChildElement("pre");
    226         if (n!=NULL) {
    227             text = n->getText(FALSE);
    228             text = text.unescape();
    229             target.append(text);
    230             nodeCount++;
    231         }
    232 
    233         n = testCase->getChildElement("m");
    234         if (n!=NULL) {
    235             expectedMatchStart = target.length();
    236             text = n->getText(FALSE);
    237             text = text.unescape();
    238             target.append(text);
    239             expectedMatchLimit = target.length();
    240             nodeCount++;
    241         }
    242 
    243         n = testCase->getChildElement("post");
    244         if (n!=NULL) {
    245             text = n->getText(FALSE);
    246             text = text.unescape();
    247             target.append(text);
    248             nodeCount++;
    249         }
    250 
    251         //  Check that there weren't extra things in the XML
    252         TEST_ASSERT(nodeCount == testCase->countChildren());
    253 
    254         // Open a collator and StringSearch based on the parameters
    255         //   obtained from the XML.
    256         //
    257         status = U_ZERO_ERROR;
    258         LocalUCollatorPointer collator(ucol_open(clocale, &status));
    259         ucol_setStrength(collator.getAlias(), collatorStrength);
    260         ucol_setAttribute(collator.getAlias(), UCOL_NORMALIZATION_MODE, normalize, &status);
    261         ucol_setAttribute(collator.getAlias(), UCOL_ALTERNATE_HANDLING, alternateHandling, &status);
    262         LocalUStringSearchPointer uss(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
    263                                                                target.getBuffer(), target.length(),
    264                                                                collator.getAlias(),
    265                                                                NULL,     // the break iterator
    266                                                                &status));
    267 
    268         TEST_ASSERT_SUCCESS(status);
    269         if (U_FAILURE(status)) {
    270             continue;
    271         }
    272 
    273         int32_t foundStart = 0;
    274         int32_t foundLimit = 0;
    275         UBool   foundMatch;
    276 
    277         //
    278         // Do the search, check the match result against the expected results.
    279         //
    280         foundMatch= usearch_search(uss.getAlias(), 0, &foundStart, &foundLimit, &status);
    281         TEST_ASSERT_SUCCESS(status);
    282         if ((foundMatch && expectedMatchStart<0) ||
    283             (foundStart != expectedMatchStart)   ||
    284             (foundLimit != expectedMatchLimit)) {
    285                 TEST_ASSERT(FALSE);   //  ouput generic error position
    286                 infoln("Found, expected match start = %d, %d \n"
    287                        "Found, expected match limit = %d, %d",
    288                 foundStart, expectedMatchStart, foundLimit, expectedMatchLimit);
    289         }
    290 
    291         // In case there are other matches...
    292         // (should we only do this if the test case passed?)
    293         while (foundMatch) {
    294             expectedMatchStart = foundStart;
    295             expectedMatchLimit = foundLimit;
    296 
    297             foundMatch = usearch_search(uss.getAlias(), foundLimit, &foundStart, &foundLimit, &status);
    298         }
    299 
    300         uss.adoptInstead(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
    301             target.getBuffer(), target.length(),
    302             collator.getAlias(),
    303             NULL,
    304             &status));
    305 
    306         //
    307         // Do the backwards search, check the match result against the expected results.
    308         //
    309         foundMatch= usearch_searchBackwards(uss.getAlias(), target.length(), &foundStart, &foundLimit, &status);
    310         TEST_ASSERT_SUCCESS(status);
    311         if ((foundMatch && expectedMatchStart<0) ||
    312             (foundStart != expectedMatchStart)   ||
    313             (foundLimit != expectedMatchLimit)) {
    314                 TEST_ASSERT(FALSE);   //  ouput generic error position
    315                 infoln("Found, expected backwards match start = %d, %d \n"
    316                        "Found, expected backwards match limit = %d, %d",
    317                 foundStart, expectedMatchStart, foundLimit, expectedMatchLimit);
    318         }
    319     }
    320 #endif
    321 }
    322 
    323 struct Order
    324 {
    325     int32_t order;
    326     int32_t lowOffset;
    327     int32_t highOffset;
    328 };
    329 
    330 class OrderList
    331 {
    332 public:
    333     OrderList();
    334     OrderList(UCollator *coll, const UnicodeString &string, int32_t stringOffset = 0);
    335     ~OrderList();
    336 
    337     int32_t size(void) const;
    338     void add(int32_t order, int32_t low, int32_t high);
    339     const Order *get(int32_t index) const;
    340     int32_t getLowOffset(int32_t index) const;
    341     int32_t getHighOffset(int32_t index) const;
    342     int32_t getOrder(int32_t index) const;
    343     void reverse(void);
    344     UBool compare(const OrderList &other) const;
    345     UBool matchesAt(int32_t offset, const OrderList &other) const;
    346 
    347 private:
    348     Order *list;
    349     int32_t listMax;
    350     int32_t listSize;
    351 };
    352 
    353 OrderList::OrderList()
    354   : list(NULL),  listMax(16), listSize(0)
    355 {
    356     list = new Order[listMax];
    357 }
    358 
    359 OrderList::OrderList(UCollator *coll, const UnicodeString &string, int32_t stringOffset)
    360     : list(NULL), listMax(16), listSize(0)
    361 {
    362     UErrorCode status = U_ZERO_ERROR;
    363     UCollationElements *elems = ucol_openElements(coll, string.getBuffer(), string.length(), &status);
    364     uint32_t strengthMask = 0;
    365     int32_t order, low, high;
    366 
    367     switch (ucol_getStrength(coll))
    368     {
    369     default:
    370         strengthMask |= UCOL_TERTIARYORDERMASK;
    371         /* fall through */
    372 
    373     case UCOL_SECONDARY:
    374         strengthMask |= UCOL_SECONDARYORDERMASK;
    375         /* fall through */
    376 
    377     case UCOL_PRIMARY:
    378         strengthMask |= UCOL_PRIMARYORDERMASK;
    379     }
    380 
    381     list = new Order[listMax];
    382 
    383     ucol_setOffset(elems, stringOffset, &status);
    384 
    385     do {
    386         low   = ucol_getOffset(elems);
    387         order = ucol_next(elems, &status);
    388         high  = ucol_getOffset(elems);
    389 
    390         if (order != UCOL_NULLORDER) {
    391             order &= strengthMask;
    392         }
    393 
    394         if (order != UCOL_IGNORABLE) {
    395             add(order, low, high);
    396         }
    397     } while (order != UCOL_NULLORDER);
    398 
    399     ucol_closeElements(elems);
    400 }
    401 
    402 OrderList::~OrderList()
    403 {
    404     delete[] list;
    405 }
    406 
    407 void OrderList::add(int32_t order, int32_t low, int32_t high)
    408 {
    409     if (listSize >= listMax) {
    410         listMax *= 2;
    411 
    412         Order *newList = new Order[listMax];
    413 
    414         uprv_memcpy(newList, list, listSize * sizeof(Order));
    415         delete[] list;
    416         list = newList;
    417     }
    418 
    419     list[listSize].order      = order;
    420     list[listSize].lowOffset  = low;
    421     list[listSize].highOffset = high;
    422 
    423     listSize += 1;
    424 }
    425 
    426 const Order *OrderList::get(int32_t index) const
    427 {
    428     if (index >= listSize) {
    429         return NULL;
    430     }
    431 
    432     return &list[index];
    433 }
    434 
    435 int32_t OrderList::getLowOffset(int32_t index) const
    436 {
    437     const Order *order = get(index);
    438 
    439     if (order != NULL) {
    440         return order->lowOffset;
    441     }
    442 
    443     return -1;
    444 }
    445 
    446 int32_t OrderList::getHighOffset(int32_t index) const
    447 {
    448     const Order *order = get(index);
    449 
    450     if (order != NULL) {
    451         return order->highOffset;
    452     }
    453 
    454     return -1;
    455 }
    456 
    457 int32_t OrderList::getOrder(int32_t index) const
    458 {
    459     const Order *order = get(index);
    460 
    461     if (order != NULL) {
    462         return order->order;
    463     }
    464 
    465     return UCOL_NULLORDER;
    466 }
    467 
    468 int32_t OrderList::size() const
    469 {
    470     return listSize;
    471 }
    472 
    473 void OrderList::reverse()
    474 {
    475     for(int32_t f = 0, b = listSize - 1; f < b; f += 1, b -= 1) {
    476         Order swap = list[b];
    477 
    478         list[b] = list[f];
    479         list[f] = swap;
    480     }
    481 }
    482 
    483 UBool OrderList::compare(const OrderList &other) const
    484 {
    485     if (listSize != other.listSize) {
    486         return FALSE;
    487     }
    488 
    489     for(int32_t i = 0; i < listSize; i += 1) {
    490         if (list[i].order  != other.list[i].order ||
    491             list[i].lowOffset != other.list[i].lowOffset ||
    492             list[i].highOffset != other.list[i].highOffset) {
    493                 return FALSE;
    494         }
    495     }
    496 
    497     return TRUE;
    498 }
    499 
    500 UBool OrderList::matchesAt(int32_t offset, const OrderList &other) const
    501 {
    502     // NOTE: sizes include the NULLORDER, which we don't want to compare.
    503     int32_t otherSize = other.size() - 1;
    504 
    505     if (listSize - 1 - offset < otherSize) {
    506         return FALSE;
    507     }
    508 
    509     for (int32_t i = offset, j = 0; j < otherSize; i += 1, j += 1) {
    510         if (getOrder(i) != other.getOrder(j)) {
    511             return FALSE;
    512         }
    513     }
    514 
    515     return TRUE;
    516 }
    517 
    518 static char *printOffsets(char *buffer, OrderList &list)
    519 {
    520     int32_t size = list.size();
    521     char *s = buffer;
    522 
    523     for(int32_t i = 0; i < size; i += 1) {
    524         const Order *order = list.get(i);
    525 
    526         if (i != 0) {
    527             s += sprintf(s, ", ");
    528         }
    529 
    530         s += sprintf(s, "(%d, %d)", order->lowOffset, order->highOffset);
    531     }
    532 
    533     return buffer;
    534 }
    535 
    536 static char *printOrders(char *buffer, OrderList &list)
    537 {
    538     int32_t size = list.size();
    539     char *s = buffer;
    540 
    541     for(int32_t i = 0; i < size; i += 1) {
    542         const Order *order = list.get(i);
    543 
    544         if (i != 0) {
    545             s += sprintf(s, ", ");
    546         }
    547 
    548         s += sprintf(s, "%8.8X", order->order);
    549     }
    550 
    551     return buffer;
    552 }
    553 
    554 void SSearchTest::offsetTest()
    555 {
    556     const char *test[] = {
    557         // The sequence \u0FB3\u0F71\u0F71\u0F80 contains a discontiguous
    558         // contraction (\u0FB3\u0F71\u0F80) logically followed by \u0F71.
    559         "\\u1E33\\u0FB3\\u0F71\\u0F71\\u0F80\\uD835\\uDF6C\\u01B0",
    560 
    561         "\\ua191\\u16ef\\u2036\\u017a",
    562 
    563 #if 0
    564         // This results in a complex interaction between contraction,
    565         // expansion and normalization that confuses the backwards offset fixups.
    566         "\\u0F7F\\u0F80\\u0F81\\u0F82\\u0F83\\u0F84\\u0F85",
    567 #endif
    568 
    569         "\\u0F80\\u0F81\\u0F82\\u0F83\\u0F84\\u0F85",
    570         "\\u07E9\\u07EA\\u07F1\\u07F2\\u07F3",
    571 
    572         "\\u02FE\\u02FF"
    573         "\\u0300\\u0301\\u0302\\u0303\\u0304\\u0305\\u0306\\u0307\\u0308\\u0309\\u030A\\u030B\\u030C\\u030D\\u030E\\u030F"
    574         "\\u0310\\u0311\\u0312\\u0313\\u0314\\u0315\\u0316\\u0317\\u0318\\u0319\\u031A\\u031B\\u031C\\u031D\\u031E\\u031F"
    575         "\\u0320\\u0321\\u0322\\u0323\\u0324\\u0325\\u0326\\u0327\\u0328\\u0329\\u032A\\u032B\\u032C\\u032D\\u032E\\u032F"
    576         "\\u0330\\u0331\\u0332\\u0333\\u0334\\u0335\\u0336\\u0337\\u0338\\u0339\\u033A\\u033B\\u033C\\u033D\\u033E\\u033F"
    577         "\\u0340\\u0341\\u0342\\u0343\\u0344\\u0345\\u0346\\u0347\\u0348\\u0349\\u034A\\u034B\\u034C\\u034D\\u034E", // currently not working, see #8081
    578 
    579         "\\u02FE\\u02FF\\u0300\\u0301\\u0302\\u0303\\u0316\\u0317\\u0318", // currently not working, see #8081
    580         "a\\u02FF\\u0301\\u0316", // currently not working, see #8081
    581         "a\\u02FF\\u0316\\u0301",
    582         "a\\u0430\\u0301\\u0316",
    583         "a\\u0430\\u0316\\u0301",
    584         "abc\\u0E41\\u0301\\u0316",
    585         "abc\\u0E41\\u0316\\u0301",
    586         "\\u0E41\\u0301\\u0316",
    587         "\\u0E41\\u0316\\u0301",
    588         "a\\u0301\\u0316",
    589         "a\\u0316\\u0301",
    590         "\\uAC52\\uAC53",
    591         "\\u34CA\\u34CB",
    592         "\\u11ED\\u11EE",
    593         "\\u30C3\\u30D0",
    594         "p\\u00E9ch\\u00E9",
    595         "a\\u0301\\u0325",
    596         "a\\u0300\\u0325",
    597         "a\\u0325\\u0300",
    598         "A\\u0323\\u0300B",
    599         "A\\u0300\\u0323B",
    600         "A\\u0301\\u0323B",
    601         "A\\u0302\\u0301\\u0323B",
    602         "abc",
    603         "ab\\u0300c",
    604         "ab\\u0300\\u0323c",
    605         " \\uD800\\uDC00\\uDC00",
    606         "a\\uD800\\uDC00\\uDC00",
    607         "A\\u0301\\u0301",
    608         "A\\u0301\\u0323",
    609         "A\\u0301\\u0323B",
    610         "B\\u0301\\u0323C",
    611         "A\\u0300\\u0323B",
    612         "\\u0301A\\u0301\\u0301",
    613         "abcd\\r\\u0301",
    614         "p\\u00EAche",
    615         "pe\\u0302che",
    616     };
    617 
    618     int32_t testCount = ARRAY_SIZE(test);
    619     UErrorCode status = U_ZERO_ERROR;
    620     RuleBasedCollator *col = (RuleBasedCollator *) Collator::createInstance(Locale::getEnglish(), status);
    621     if (U_FAILURE(status)) {
    622         errcheckln(status, "Failed to create collator in offsetTest! - %s", u_errorName(status));
    623         return;
    624     }
    625     char buffer[4096];  // A bit of a hack... just happens to be long enough for all the test cases...
    626                         // We could allocate one that's the right size by (CE_count * 10) + 2
    627                         // 10 chars is enough room for 8 hex digits plus ", ". 2 extra chars for "[" and "]"
    628 
    629     col->setAttribute(UCOL_NORMALIZATION_MODE, UCOL_ON, status);
    630 
    631     for(int32_t i = 0; i < testCount; i += 1) {
    632         UnicodeString ts = CharsToUnicodeString(test[i]);
    633         CollationElementIterator *iter = col->createCollationElementIterator(ts);
    634         OrderList forwardList;
    635         OrderList backwardList;
    636         int32_t order, low, high;
    637 
    638         do {
    639             low   = iter->getOffset();
    640             order = iter->next(status);
    641             high  = iter->getOffset();
    642 
    643             forwardList.add(order, low, high);
    644         } while (order != CollationElementIterator::NULLORDER);
    645 
    646         iter->reset();
    647         iter->setOffset(ts.length(), status);
    648 
    649         backwardList.add(CollationElementIterator::NULLORDER, iter->getOffset(), iter->getOffset());
    650 
    651         do {
    652             high  = iter->getOffset();
    653             order = iter->previous(status);
    654             low   = iter->getOffset();
    655 
    656             if (order == CollationElementIterator::NULLORDER) {
    657                 break;
    658             }
    659 
    660             backwardList.add(order, low, high);
    661         } while (TRUE);
    662 
    663         backwardList.reverse();
    664 
    665         if (forwardList.compare(backwardList)) {
    666             logln("Works with \"%s\"", test[i]);
    667             logln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    668 //          logln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    669 
    670             logln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    671 //          logln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    672 
    673             logln();
    674         } else {
    675             errln("Fails with \"%s\"", test[i]);
    676             infoln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    677             infoln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    678 
    679             infoln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    680             infoln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    681 
    682             infoln();
    683         }
    684         delete iter;
    685     }
    686     delete col;
    687 }
    688 
    689 #if 0
    690 static UnicodeString &escape(const UnicodeString &string, UnicodeString &buffer)
    691 {
    692     for(int32_t i = 0; i < string.length(); i += 1) {
    693         UChar32 ch = string.char32At(i);
    694 
    695         if (ch >= 0x0020 && ch <= 0x007F) {
    696             if (ch == 0x005C) {
    697                 buffer.append("\\\\");
    698             } else {
    699                 buffer.append(ch);
    700             }
    701         } else {
    702             char cbuffer[12];
    703 
    704             if (ch <= 0xFFFFL) {
    705                 sprintf(cbuffer, "\\u%4.4X", ch);
    706             } else {
    707                 sprintf(cbuffer, "\\U%8.8X", ch);
    708             }
    709 
    710             buffer.append(cbuffer);
    711         }
    712 
    713         if (ch >= 0x10000L) {
    714             i += 1;
    715         }
    716     }
    717 
    718     return buffer;
    719 }
    720 #endif
    721 
    722 void SSearchTest::sharpSTest()
    723 {
    724     UErrorCode status = U_ZERO_ERROR;
    725     UCollator *coll = NULL;
    726     UnicodeString lp  = "fuss";
    727     UnicodeString sp = "fu\\u00DF";
    728     UnicodeString targets[]  = {"fu\\u00DF", "fu\\u00DFball", "1fu\\u00DFball", "12fu\\u00DFball", "123fu\\u00DFball", "1234fu\\u00DFball",
    729                                 "ffu\\u00DF", "fufu\\u00DF", "fusfu\\u00DF",
    730                                 "fuss", "ffuss", "fufuss", "fusfuss", "1fuss", "12fuss", "123fuss", "1234fuss", "fu\\u00DF", "1fu\\u00DF", "12fu\\u00DF", "123fu\\u00DF", "1234fu\\u00DF"};
    731     int32_t start = -1, end = -1;
    732 
    733     coll = ucol_openFromShortString("LEN_S1", FALSE, NULL, &status);
    734     TEST_ASSERT_SUCCESS(status);
    735 
    736     UnicodeString lpUnescaped = lp.unescape();
    737     UnicodeString spUnescaped = sp.unescape();
    738 
    739     LocalUStringSearchPointer ussLong(usearch_openFromCollator(lpUnescaped.getBuffer(), lpUnescaped.length(),
    740                                                            lpUnescaped.getBuffer(), lpUnescaped.length(),   // actual test data will be set later
    741                                                            coll,
    742                                                            NULL,     // the break iterator
    743                                                            &status));
    744 
    745     LocalUStringSearchPointer ussShort(usearch_openFromCollator(spUnescaped.getBuffer(), spUnescaped.length(),
    746                                                            spUnescaped.getBuffer(), spUnescaped.length(),   // actual test data will be set later
    747                                                            coll,
    748                                                            NULL,     // the break iterator
    749                                                            &status));
    750     TEST_ASSERT_SUCCESS(status);
    751 
    752     for (uint32_t t = 0; t < (sizeof(targets)/sizeof(targets[0])); t += 1) {
    753         UBool bFound;
    754         UnicodeString target = targets[t].unescape();
    755 
    756         start = end = -1;
    757         usearch_setText(ussLong.getAlias(), target.getBuffer(), target.length(), &status);
    758         bFound = usearch_search(ussLong.getAlias(), 0, &start, &end, &status);
    759         TEST_ASSERT_SUCCESS(status);
    760         if (bFound) {
    761             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    762         } else {
    763             dataerrln("Test %d: did not find long pattern.", t);
    764         }
    765 
    766         usearch_setText(ussShort.getAlias(), target.getBuffer(), target.length(), &status);
    767         bFound = usearch_search(ussShort.getAlias(), 0, &start, &end, &status);
    768         TEST_ASSERT_SUCCESS(status);
    769         if (bFound) {
    770             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    771         } else {
    772             dataerrln("Test %d: did not find long pattern.", t);
    773         }
    774     }
    775 
    776     ucol_close(coll);
    777 }
    778 
    779 void SSearchTest::goodSuffixTest()
    780 {
    781     UErrorCode status = U_ZERO_ERROR;
    782     UCollator *coll = NULL;
    783     UnicodeString pat = /*"gcagagag"*/ "fxeld";
    784     UnicodeString target = /*"gcatcgcagagagtatacagtacg"*/ "cloveldfxeld";
    785     int32_t start = -1, end = -1;
    786     UBool bFound;
    787 
    788     coll = ucol_open(NULL, &status);
    789     TEST_ASSERT_SUCCESS(status);
    790 
    791     LocalUStringSearchPointer ss(usearch_openFromCollator(pat.getBuffer(), pat.length(),
    792                                                           target.getBuffer(), target.length(),
    793                                                           coll,
    794                                                           NULL,     // the break iterator
    795                                                           &status));
    796     TEST_ASSERT_SUCCESS(status);
    797 
    798     bFound = usearch_search(ss.getAlias(), 0, &start, &end, &status);
    799     TEST_ASSERT_SUCCESS(status);
    800     if (bFound) {
    801         logln("Found pattern at [%d, %d].", start, end);
    802     } else {
    803         dataerrln("Did not find pattern.");
    804     }
    805 
    806     ucol_close(coll);
    807 }
    808 
    809 //
    810 //  searchTime()    A quick and dirty performance test for string search.
    811 //                  Probably  doesn't really belong as part of intltest, but it
    812 //                  does check that the search succeeds, and gets the right result,
    813 //                  so it serves as a functionality test also.
    814 //
    815 //                  To run as a perf test, up the loop count, select by commenting
    816 //                  and uncommenting in the code the operation to be measured,
    817 //                  rebuild, and measure the running time of this test alone.
    818 //
    819 //                     time LD_LIBRARY_PATH=whatever  ./intltest  collate/SSearchTest/searchTime
    820 //
    821 void SSearchTest::searchTime() {
    822     static const char *longishText =
    823 "Whylom, as olde stories tellen us,\n"
    824 "Ther was a duk that highte Theseus:\n"
    825 "Of Athenes he was lord and governour,\n"
    826 "And in his tyme swich a conquerour,\n"
    827 "That gretter was ther noon under the sonne.\n"
    828 "Ful many a riche contree hadde he wonne;\n"
    829 "What with his wisdom and his chivalrye,\n"
    830 "He conquered al the regne of Femenye,\n"
    831 "That whylom was y-cleped Scithia;\n"
    832 "And weddede the quene Ipolita,\n"
    833 "And broghte hir hoom with him in his contree\n"
    834 "With muchel glorie and greet solempnitee,\n"
    835 "And eek hir yonge suster Emelye.\n"
    836 "And thus with victorie and with melodye\n"
    837 "Lete I this noble duk to Athenes ryde,\n"
    838 "And al his hoost, in armes, him bisyde.\n"
    839 "And certes, if it nere to long to here,\n"
    840 "I wolde han told yow fully the manere,\n"
    841 "How wonnen was the regne of Femenye\n"
    842 "By Theseus, and by his chivalrye;\n"
    843 "And of the grete bataille for the nones\n"
    844 "Bitwixen Athen's and Amazones;\n"
    845 "And how asseged was Ipolita,\n"
    846 "The faire hardy quene of Scithia;\n"
    847 "And of the feste that was at hir weddinge,\n"
    848 "And of the tempest at hir hoom-cominge;\n"
    849 "But al that thing I moot as now forbere.\n"
    850 "I have, God woot, a large feeld to ere,\n"
    851 "And wayke been the oxen in my plough.\n"
    852 "The remenant of the tale is long y-nough.\n"
    853 "I wol nat letten eek noon of this route;\n"
    854 "Lat every felawe telle his tale aboute,\n"
    855 "And lat see now who shal the soper winne;\n"
    856 "And ther I lefte, I wol ageyn biginne.\n"
    857 "This duk, of whom I make mencioun,\n"
    858 "When he was come almost unto the toun,\n"
    859 "In al his wele and in his moste pryde,\n"
    860 "He was war, as he caste his eye asyde,\n"
    861 "Wher that ther kneled in the hye weye\n"
    862 "A companye of ladies, tweye and tweye,\n"
    863 "Ech after other, clad in clothes blake; \n"
    864 "But swich a cry and swich a wo they make,\n"
    865 "That in this world nis creature livinge,\n"
    866 "That herde swich another weymentinge;\n"
    867 "And of this cry they nolde never stenten,\n"
    868 "Til they the reynes of his brydel henten.\n"
    869 "'What folk ben ye, that at myn hoomcominge\n"
    870 "Perturben so my feste with cryinge'?\n"
    871 "Quod Theseus, 'have ye so greet envye\n"
    872 "Of myn honour, that thus compleyne and crye? \n"
    873 "Or who hath yow misboden, or offended?\n"
    874 "And telleth me if it may been amended;\n"
    875 "And why that ye ben clothed thus in blak'?\n"
    876 "The eldest lady of hem alle spak,\n"
    877 "When she hadde swowned with a deedly chere,\n"
    878 "That it was routhe for to seen and here,\n"
    879 "And seyde: 'Lord, to whom Fortune hath yiven\n"
    880 "Victorie, and as a conquerour to liven,\n"
    881 "Noght greveth us your glorie and your honour;\n"
    882 "But we biseken mercy and socour.\n"
    883 "Have mercy on our wo and our distresse.\n"
    884 "Som drope of pitee, thurgh thy gentilesse,\n"
    885 "Up-on us wrecched wommen lat thou falle.\n"
    886 "For certes, lord, ther nis noon of us alle,\n"
    887 "That she nath been a duchesse or a quene;\n"
    888 "Now be we caitifs, as it is wel sene:\n"
    889 "Thanked be Fortune, and hir false wheel,\n"
    890 "That noon estat assureth to be weel.\n"
    891 "And certes, lord, t'abyden your presence,\n"
    892 "Here in the temple of the goddesse Clemence\n"
    893 "We han ben waytinge al this fourtenight;\n"
    894 "Now help us, lord, sith it is in thy might.\n"
    895 "I wrecche, which that wepe and waille thus,\n"
    896 "Was whylom wyf to king Capaneus,\n"
    897 "That starf at Thebes, cursed be that day!\n"
    898 "And alle we, that been in this array,\n"
    899 "And maken al this lamentacioun,\n"
    900 "We losten alle our housbondes at that toun,\n"
    901 "Whyl that the sege ther-aboute lay.\n"
    902 "And yet now th'olde Creon, weylaway!\n"
    903 "The lord is now of Thebes the citee, \n"
    904 "Fulfild of ire and of iniquitee,\n"
    905 "He, for despyt, and for his tirannye,\n"
    906 "To do the dede bodyes vileinye,\n"
    907 "Of alle our lordes, whiche that ben slawe,\n"
    908 "Hath alle the bodyes on an heep y-drawe,\n"
    909 "And wol nat suffren hem, by noon assent,\n"
    910 "Neither to been y-buried nor y-brent,\n"
    911 "But maketh houndes ete hem in despyt. zet'\n";
    912 
    913 const char *cPattern = "maketh houndes ete hem";
    914 //const char *cPattern = "Whylom";
    915 //const char *cPattern = "zet";
    916     const char *testId = "searchTime()";   // for error macros.
    917     UnicodeString target = longishText;
    918     UErrorCode status = U_ZERO_ERROR;
    919 
    920 
    921     LocalUCollatorPointer collator(ucol_open("en", &status));
    922     //ucol_setStrength(collator.getAlias(), collatorStrength);
    923     //ucol_setAttribute(collator.getAlias(), UCOL_NORMALIZATION_MODE, normalize, &status);
    924     UnicodeString uPattern = cPattern;
    925     LocalUStringSearchPointer uss(usearch_openFromCollator(uPattern.getBuffer(), uPattern.length(),
    926                                                            target.getBuffer(), target.length(),
    927                                                            collator.getAlias(),
    928                                                            NULL,     // the break iterator
    929                                                            &status));
    930     TEST_ASSERT_SUCCESS(status);
    931 
    932 //  int32_t foundStart;
    933 //  int32_t foundEnd;
    934     UBool   found;
    935 
    936     // Find the match position usgin strstr
    937     const char *pm = strstr(longishText, cPattern);
    938     TEST_ASSERT_M(pm!=NULL, "No pattern match with strstr");
    939     int32_t  refMatchPos = (int32_t)(pm - longishText);
    940     int32_t  icuMatchPos;
    941     int32_t  icuMatchEnd;
    942     usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    943     TEST_ASSERT_SUCCESS(status);
    944     TEST_ASSERT_M(refMatchPos == icuMatchPos, "strstr and icu give different match positions.");
    945 
    946     int32_t i;
    947     // int32_t j=0;
    948 
    949     // Try loopcounts around 100000 to some millions, depending on the operation,
    950     //   to get runtimes of at least several seconds.
    951     for (i=0; i<10000; i++) {
    952         found = usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    953         (void)found;   // Suppress set but not used warning.
    954         //TEST_ASSERT_SUCCESS(status);
    955         //TEST_ASSERT(found);
    956 
    957         // usearch_setOffset(uss.getAlias(), 0, &status);
    958         // icuMatchPos = usearch_next(uss.getAlias(), &status);
    959 
    960          // The i+j stuff is to confuse the optimizer and get it to actually leave the
    961          //   call to strstr in place.
    962          //pm = strstr(longishText+j, cPattern);
    963          //j = (j + i)%5;
    964     }
    965 
    966     //printf("%ld, %d\n", pm-longishText, j);
    967 }
    968 
    969 //----------------------------------------------------------------------------------------
    970 //
    971 //   Random Numbers.  Similar to standard lib rand() and srand()
    972 //                    Not using library to
    973 //                      1.  Get same results on all platforms.
    974 //                      2.  Get access to current seed, to more easily reproduce failures.
    975 //
    976 //---------------------------------------------------------------------------------------
    977 static uint32_t m_seed = 1;
    978 
    979 static uint32_t m_rand()
    980 {
    981     m_seed = m_seed * 1103515245 + 12345;
    982     return (uint32_t)(m_seed/65536) % 32768;
    983 }
    984 
    985 class Monkey
    986 {
    987 public:
    988     virtual void append(UnicodeString &test, UnicodeString &alternate) = 0;
    989 
    990 protected:
    991     Monkey();
    992     virtual ~Monkey();
    993 };
    994 
    995 Monkey::Monkey()
    996 {
    997     // ook?
    998 }
    999 
   1000 Monkey::~Monkey()
   1001 {
   1002     // ook?
   1003 }
   1004 
   1005 class SetMonkey : public Monkey
   1006 {
   1007 public:
   1008     SetMonkey(const USet *theSet);
   1009     ~SetMonkey();
   1010 
   1011     virtual void append(UnicodeString &test, UnicodeString &alternate);
   1012 
   1013 private:
   1014     const USet *set;
   1015 };
   1016 
   1017 SetMonkey::SetMonkey(const USet *theSet)
   1018     : Monkey(), set(theSet)
   1019 {
   1020     // ook?
   1021 }
   1022 
   1023 SetMonkey::~SetMonkey()
   1024 {
   1025     //ook...
   1026 }
   1027 
   1028 void SetMonkey::append(UnicodeString &test, UnicodeString &alternate)
   1029 {
   1030     int32_t size = uset_size(set);
   1031     int32_t index = m_rand() % size;
   1032     UChar32 ch = uset_charAt(set, index);
   1033     UnicodeString str(ch);
   1034 
   1035     test.append(str);
   1036     alternate.append(str); // flip case, or some junk?
   1037 }
   1038 
   1039 class StringSetMonkey : public Monkey
   1040 {
   1041 public:
   1042     StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData);
   1043     ~StringSetMonkey();
   1044 
   1045     void append(UnicodeString &testCase, UnicodeString &alternate);
   1046 
   1047 private:
   1048     UnicodeString &generateAlternative(const UnicodeString &testCase, UnicodeString &alternate);
   1049 
   1050     const USet *set;
   1051     UCollator  *coll;
   1052     CollData   *collData;
   1053 };
   1054 
   1055 StringSetMonkey::StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData)
   1056 : Monkey(), set(theSet), coll(theCollator), collData(theCollData)
   1057 {
   1058     // ook.
   1059 }
   1060 
   1061 StringSetMonkey::~StringSetMonkey()
   1062 {
   1063     // ook?
   1064 }
   1065 
   1066 void StringSetMonkey::append(UnicodeString &testCase, UnicodeString &alternate)
   1067 {
   1068     int32_t itemCount = uset_getItemCount(set), len = 0;
   1069     int32_t index = m_rand() % itemCount;
   1070     UChar32 rangeStart = 0, rangeEnd = 0;
   1071     UChar buffer[16];
   1072     UErrorCode err = U_ZERO_ERROR;
   1073 
   1074     len = uset_getItem(set, index, &rangeStart, &rangeEnd, buffer, 16, &err);
   1075 
   1076     if (len == 0) {
   1077         int32_t offset = m_rand() % (rangeEnd - rangeStart + 1);
   1078         UChar32 ch = rangeStart + offset;
   1079         UnicodeString str(ch);
   1080 
   1081         testCase.append(str);
   1082         generateAlternative(str, alternate);
   1083     } else if (len > 0) {
   1084         // should check that len < 16...
   1085         UnicodeString str(buffer, len);
   1086 
   1087         testCase.append(str);
   1088         generateAlternative(str, alternate);
   1089     } else {
   1090         // shouldn't happen...
   1091     }
   1092 }
   1093 
   1094 UnicodeString &StringSetMonkey::generateAlternative(const UnicodeString &testCase, UnicodeString &alternate)
   1095 {
   1096     // find out shortest string for the longest sequence of ces.
   1097     // needs to be refined to use dynamic programming, but will be roughly right
   1098     UErrorCode status = U_ZERO_ERROR;
   1099     CEList ceList(coll, testCase, status);
   1100     UnicodeString alt;
   1101     int32_t offset = 0;
   1102 
   1103     if (ceList.size() == 0) {
   1104         return alternate.append(testCase);
   1105     }
   1106 
   1107     while (offset < ceList.size()) {
   1108         int32_t ce = ceList.get(offset);
   1109         const StringList *strings = collData->getStringList(ce);
   1110 
   1111         if (strings == NULL) {
   1112             return alternate.append(testCase);
   1113         }
   1114 
   1115         int32_t stringCount = strings->size();
   1116         int32_t tries = 0;
   1117 
   1118         // find random string that generates the same CEList
   1119         const CEList *ceList2 = NULL;
   1120         const UnicodeString *string = NULL;
   1121               UBool matches = FALSE;
   1122 
   1123         do {
   1124             int32_t s = m_rand() % stringCount;
   1125 
   1126             if (tries++ > stringCount) {
   1127                 alternate.append(testCase);
   1128                 return alternate;
   1129             }
   1130 
   1131             string = strings->get(s);
   1132             ceList2 = collData->getCEList(string);
   1133             matches = ceList.matchesAt(offset, ceList2);
   1134 
   1135             if (! matches) {
   1136                 collData->freeCEList((CEList *) ceList2);
   1137             }
   1138         } while (! matches);
   1139 
   1140         alt.append(*string);
   1141         offset += ceList2->size();
   1142         collData->freeCEList(ceList2);
   1143     }
   1144 
   1145     const CEList altCEs(coll, alt, status);
   1146 
   1147     if (ceList.matchesAt(0, &altCEs)) {
   1148         return alternate.append(alt);
   1149     }
   1150 
   1151     return alternate.append(testCase);
   1152 }
   1153 
   1154 static void generateTestCase(UCollator *coll, Monkey *monkeys[], int32_t monkeyCount, UnicodeString &testCase, UnicodeString &alternate)
   1155 {
   1156     int32_t pieces = (m_rand() % 4) + 1;
   1157     UErrorCode status = U_ZERO_ERROR;
   1158     UBool matches;
   1159 
   1160     do {
   1161         testCase.remove();
   1162         alternate.remove();
   1163         monkeys[0]->append(testCase, alternate);
   1164 
   1165         for(int32_t piece = 0; piece < pieces; piece += 1) {
   1166             int32_t monkey = m_rand() % monkeyCount;
   1167 
   1168             monkeys[monkey]->append(testCase, alternate);
   1169         }
   1170 
   1171         const CEList ceTest(coll, testCase, status);
   1172         const CEList ceAlt(coll, alternate, status);
   1173 
   1174         matches = ceTest.matchesAt(0, &ceAlt);
   1175     } while (! matches);
   1176 }
   1177 
   1178 static UBool simpleSearch(UCollator *coll, const UnicodeString &target, int32_t offset, const UnicodeString &pattern, int32_t &matchStart, int32_t &matchEnd)
   1179 {
   1180     UErrorCode      status = U_ZERO_ERROR;
   1181     OrderList       targetOrders(coll, target, offset);
   1182     OrderList       patternOrders(coll, pattern);
   1183     int32_t         targetSize  = targetOrders.size() - 1;
   1184     int32_t         patternSize = patternOrders.size() - 1;
   1185     UBreakIterator *charBreakIterator = ubrk_open(UBRK_CHARACTER, ucol_getLocaleByType(coll, ULOC_VALID_LOCALE, &status),
   1186                                                   target.getBuffer(), target.length(), &status);
   1187 
   1188     if (patternSize == 0) {
   1189         // Searching for an empty pattern always fails
   1190         matchStart = matchEnd = -1;
   1191         ubrk_close(charBreakIterator);
   1192         return FALSE;
   1193     }
   1194 
   1195     matchStart = matchEnd = -1;
   1196 
   1197     for(int32_t i = 0; i < targetSize; i += 1) {
   1198         if (targetOrders.matchesAt(i, patternOrders)) {
   1199             int32_t start    = targetOrders.getLowOffset(i);
   1200             int32_t maxLimit = targetOrders.getLowOffset(i + patternSize);
   1201             int32_t minLimit = targetOrders.getLowOffset(i + patternSize - 1);
   1202 
   1203             // if the low and high offsets of the first CE in
   1204             // the match are the same, it means that the match
   1205             // starts in the middle of an expansion - all but
   1206             // the first CE of the expansion will have the offset
   1207             // of the following character.
   1208             if (start == targetOrders.getHighOffset(i)) {
   1209                 continue;
   1210             }
   1211 
   1212             // Make sure match starts on a grapheme boundary
   1213             if (! ubrk_isBoundary(charBreakIterator, start)) {
   1214                 continue;
   1215             }
   1216 
   1217             // If the low and high offsets of the CE after the match
   1218             // are the same, it means that the match ends in the middle
   1219             // of an expansion sequence.
   1220             if (maxLimit == targetOrders.getHighOffset(i + patternSize) &&
   1221                 targetOrders.getOrder(i + patternSize) != UCOL_NULLORDER) {
   1222                 continue;
   1223             }
   1224 
   1225             int32_t mend = maxLimit;
   1226 
   1227             // Find the first grapheme break after the character index
   1228             // of the last CE in the match. If it's after character index
   1229             // that's after the last CE in the match, use that index
   1230             // as the end of the match.
   1231             if (minLimit < maxLimit) {
   1232                 // When the last CE's low index is same with its high index, the CE is likely
   1233                 // a part of expansion. In this case, the index is located just after the
   1234                 // character corresponding to the CEs compared above. If the index is right
   1235                 // at the break boundary, move the position to the next boundary will result
   1236                 // incorrect match length when there are ignorable characters exist between
   1237                 // the position and the next character produces CE(s). See ticket#8482.
   1238                 if (minLimit == targetOrders.getHighOffset(i + patternSize - 1) && ubrk_isBoundary(charBreakIterator, minLimit)) {
   1239                     mend = minLimit;
   1240                 } else {
   1241                     int32_t nba = ubrk_following(charBreakIterator, minLimit);
   1242 
   1243                     if (nba >= targetOrders.getHighOffset(i + patternSize - 1)) {
   1244                         mend = nba;
   1245                     }
   1246                 }
   1247             }
   1248 
   1249             if (mend > maxLimit) {
   1250                 continue;
   1251             }
   1252 
   1253             if (! ubrk_isBoundary(charBreakIterator, mend)) {
   1254                 continue;
   1255             }
   1256 
   1257             matchStart = start;
   1258             matchEnd   = mend;
   1259 
   1260             ubrk_close(charBreakIterator);
   1261             return TRUE;
   1262         }
   1263     }
   1264 
   1265     ubrk_close(charBreakIterator);
   1266     return FALSE;
   1267 }
   1268 
   1269 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1270 static int32_t  getIntParam(UnicodeString name, UnicodeString &params, int32_t defaultVal) {
   1271     int32_t val = defaultVal;
   1272 
   1273     name.append(" *= *(-?\\d+)");
   1274 
   1275     UErrorCode status = U_ZERO_ERROR;
   1276     RegexMatcher m(name, params, 0, status);
   1277 
   1278     if (m.find()) {
   1279         // The param exists.  Convert the string to an int.
   1280         char valString[100];
   1281         int32_t paramLength = m.end(1, status) - m.start(1, status);
   1282 
   1283         if (paramLength >= (int32_t)(sizeof(valString)-1)) {
   1284             paramLength = (int32_t)(sizeof(valString)-2);
   1285         }
   1286 
   1287         params.extract(m.start(1, status), paramLength, valString, sizeof(valString));
   1288         val = uprv_strtol(valString,  NULL, 10);
   1289 
   1290         // Delete this parameter from the params string.
   1291         m.reset();
   1292         params = m.replaceFirst("", status);
   1293     }
   1294 
   1295   //U_ASSERT(U_SUCCESS(status));
   1296     if (! U_SUCCESS(status)) {
   1297         val = defaultVal;
   1298     }
   1299 
   1300     return val;
   1301 }
   1302 #endif
   1303 
   1304 #if !UCONFIG_NO_COLLATION
   1305 int32_t SSearchTest::monkeyTestCase(UCollator *coll, const UnicodeString &testCase, const UnicodeString &pattern, const UnicodeString &altPattern,
   1306                                     const char *name, const char *strength, uint32_t seed)
   1307 {
   1308     UErrorCode status = U_ZERO_ERROR;
   1309     int32_t actualStart = -1, actualEnd = -1;
   1310   //int32_t expectedStart = prefix.length(), expectedEnd = prefix.length() + altPattern.length();
   1311     int32_t expectedStart = -1, expectedEnd = -1;
   1312     int32_t notFoundCount = 0;
   1313     LocalUStringSearchPointer uss(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
   1314                                                            testCase.getBuffer(), testCase.length(),
   1315                                                            coll,
   1316                                                            NULL,     // the break iterator
   1317                                                            &status));
   1318 
   1319     // **** TODO: find *all* matches, not just first one ****
   1320     simpleSearch(coll, testCase, 0, pattern, expectedStart, expectedEnd);
   1321 
   1322     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1323 
   1324     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1325         errln("Search for <pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1326               "    strength=%s seed=%d",
   1327               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1328     }
   1329 
   1330     if (expectedStart == -1 && actualStart == -1) {
   1331         notFoundCount += 1;
   1332     }
   1333 
   1334     // **** TODO: find *all* matches, not just first one ****
   1335     simpleSearch(coll, testCase, 0, altPattern, expectedStart, expectedEnd);
   1336 
   1337     usearch_setPattern(uss.getAlias(), altPattern.getBuffer(), altPattern.length(), &status);
   1338 
   1339     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1340 
   1341     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1342         errln("Search for <alt_pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1343               "    strength=%s seed=%d",
   1344               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1345     }
   1346 
   1347     if (expectedStart == -1 && actualStart == -1) {
   1348         notFoundCount += 1;
   1349     }
   1350 
   1351     return notFoundCount;
   1352 }
   1353 #endif
   1354 
   1355 void SSearchTest::monkeyTest(char *params)
   1356 {
   1357     // ook!
   1358     UErrorCode status = U_ZERO_ERROR;
   1359   //UCollator *coll = ucol_open(NULL, &status);
   1360     UCollator *coll = ucol_openFromShortString("S1", FALSE, NULL, &status);
   1361 
   1362     if (U_FAILURE(status)) {
   1363         errcheckln(status, "Failed to create collator in MonkeyTest! - %s", u_errorName(status));
   1364         return;
   1365     }
   1366 
   1367     CollData  *monkeyData = new CollData(coll, status);
   1368 
   1369     USet *expansions   = uset_openEmpty();
   1370     USet *contractions = uset_openEmpty();
   1371 
   1372     ucol_getContractionsAndExpansions(coll, contractions, expansions, FALSE, &status);
   1373 
   1374     U_STRING_DECL(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1375     U_STRING_INIT(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1376     USet *letters = uset_openPattern(letter_pattern, 39, &status);
   1377     SetMonkey letterMonkey(letters);
   1378     StringSetMonkey contractionMonkey(contractions, coll, monkeyData);
   1379     StringSetMonkey expansionMonkey(expansions, coll, monkeyData);
   1380     UnicodeString testCase;
   1381     UnicodeString alternate;
   1382     UnicodeString pattern, altPattern;
   1383     UnicodeString prefix, altPrefix;
   1384     UnicodeString suffix, altSuffix;
   1385 
   1386     Monkey *monkeys[] = {
   1387         &letterMonkey,
   1388         &contractionMonkey,
   1389         &expansionMonkey,
   1390         &contractionMonkey,
   1391         &expansionMonkey,
   1392         &contractionMonkey,
   1393         &expansionMonkey,
   1394         &contractionMonkey,
   1395         &expansionMonkey};
   1396     int32_t monkeyCount = sizeof(monkeys) / sizeof(monkeys[0]);
   1397     // int32_t nonMatchCount = 0;
   1398 
   1399     UCollationStrength strengths[] = {UCOL_PRIMARY, UCOL_SECONDARY, UCOL_TERTIARY};
   1400     const char *strengthNames[] = {"primary", "secondary", "tertiary"};
   1401     int32_t strengthCount = sizeof(strengths) / sizeof(strengths[0]);
   1402     int32_t loopCount = quick? 1000 : 10000;
   1403     int32_t firstStrength = 0;
   1404     int32_t lastStrength  = strengthCount - 1; //*/ 0;
   1405 
   1406     if (params != NULL) {
   1407 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1408         UnicodeString p(params);
   1409 
   1410         loopCount = getIntParam("loop", p, loopCount);
   1411         m_seed    = getIntParam("seed", p, m_seed);
   1412 
   1413         RegexMatcher m(" *strength *= *(primary|secondary|tertiary) *", p, 0, status);
   1414         if (m.find()) {
   1415             UnicodeString breakType = m.group(1, status);
   1416 
   1417             for (int32_t s = 0; s < strengthCount; s += 1) {
   1418                 if (breakType == strengthNames[s]) {
   1419                     firstStrength = lastStrength = s;
   1420                     break;
   1421                 }
   1422             }
   1423 
   1424             m.reset();
   1425             p = m.replaceFirst("", status);
   1426         }
   1427 
   1428         if (RegexMatcher("\\S", p, 0, status).find()) {
   1429             // Each option is stripped out of the option string as it is processed.
   1430             // All options have been checked.  The option string should have been completely emptied..
   1431             char buf[100];
   1432             p.extract(buf, sizeof(buf), NULL, status);
   1433             buf[sizeof(buf)-1] = 0;
   1434             errln("Unrecognized or extra parameter:  %s\n", buf);
   1435             return;
   1436         }
   1437 #else
   1438         infoln("SSearchTest built with UCONFIG_NO_REGULAR_EXPRESSIONS: ignoring parameters.");
   1439 #endif
   1440     }
   1441 
   1442     for(int32_t s = firstStrength; s <= lastStrength; s += 1) {
   1443         int32_t notFoundCount = 0;
   1444 
   1445         logln("Setting strength to %s.", strengthNames[s]);
   1446         ucol_setStrength(coll, strengths[s]);
   1447 
   1448         // TODO: try alternate prefix and suffix too?
   1449         // TODO: alternates are only equal at primary strength. Is this OK?
   1450         for(int32_t t = 0; t < loopCount; t += 1) {
   1451             uint32_t seed = m_seed;
   1452             // int32_t  nmc = 0;
   1453 
   1454             generateTestCase(coll, monkeys, monkeyCount, pattern, altPattern);
   1455             generateTestCase(coll, monkeys, monkeyCount, prefix,  altPrefix);
   1456             generateTestCase(coll, monkeys, monkeyCount, suffix,  altSuffix);
   1457 
   1458             // pattern
   1459             notFoundCount += monkeyTestCase(coll, pattern, pattern, altPattern, "pattern", strengthNames[s], seed);
   1460 
   1461             testCase.remove();
   1462             testCase.append(prefix);
   1463             testCase.append(/*alt*/pattern);
   1464 
   1465             // prefix + pattern
   1466             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern", strengthNames[s], seed);
   1467 
   1468             testCase.append(suffix);
   1469 
   1470             // prefix + pattern + suffix
   1471             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern + suffix", strengthNames[s], seed);
   1472 
   1473             testCase.remove();
   1474             testCase.append(pattern);
   1475             testCase.append(suffix);
   1476 
   1477             // pattern + suffix
   1478             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "pattern + suffix", strengthNames[s], seed);
   1479         }
   1480 
   1481        logln("For strength %s the not found count is %d.", strengthNames[s], notFoundCount);
   1482     }
   1483 
   1484     uset_close(contractions);
   1485     uset_close(expansions);
   1486     uset_close(letters);
   1487     delete monkeyData;
   1488 
   1489     ucol_close(coll);
   1490 }
   1491 
   1492 #endif
   1493 
   1494 #endif
   1495