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      1 /*
      2  **********************************************************************
      3  *   Copyright (C) 2005-2013, 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 "ucol_imp.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         if (!isICUVersionAtLeast(52, 0, 1) && i>=4 && i<=6) {
    633             continue; // timebomb until ticket #9156 (was #8081) is resolved
    634         }
    635         UnicodeString ts = CharsToUnicodeString(test[i]);
    636         CollationElementIterator *iter = col->createCollationElementIterator(ts);
    637         OrderList forwardList;
    638         OrderList backwardList;
    639         int32_t order, low, high;
    640 
    641         do {
    642             low   = iter->getOffset();
    643             order = iter->next(status);
    644             high  = iter->getOffset();
    645 
    646             forwardList.add(order, low, high);
    647         } while (order != CollationElementIterator::NULLORDER);
    648 
    649         iter->reset();
    650         iter->setOffset(ts.length(), status);
    651 
    652         backwardList.add(CollationElementIterator::NULLORDER, iter->getOffset(), iter->getOffset());
    653 
    654         do {
    655             high  = iter->getOffset();
    656             order = iter->previous(status);
    657             low   = iter->getOffset();
    658 
    659             if (order == CollationElementIterator::NULLORDER) {
    660                 break;
    661             }
    662 
    663             backwardList.add(order, low, high);
    664         } while (TRUE);
    665 
    666         backwardList.reverse();
    667 
    668         if (forwardList.compare(backwardList)) {
    669             logln("Works with \"%s\"", test[i]);
    670             logln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    671 //          logln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    672 
    673             logln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    674 //          logln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    675 
    676             logln();
    677         } else {
    678             errln("Fails with \"%s\"", test[i]);
    679             infoln("Forward offsets:  [%s]", printOffsets(buffer, forwardList));
    680             infoln("Backward offsets: [%s]", printOffsets(buffer, backwardList));
    681 
    682             infoln("Forward CEs:  [%s]", printOrders(buffer, forwardList));
    683             infoln("Backward CEs: [%s]", printOrders(buffer, backwardList));
    684 
    685             infoln();
    686         }
    687         delete iter;
    688     }
    689     delete col;
    690 }
    691 
    692 #if 0
    693 static UnicodeString &escape(const UnicodeString &string, UnicodeString &buffer)
    694 {
    695     for(int32_t i = 0; i < string.length(); i += 1) {
    696         UChar32 ch = string.char32At(i);
    697 
    698         if (ch >= 0x0020 && ch <= 0x007F) {
    699             if (ch == 0x005C) {
    700                 buffer.append("\\\\");
    701             } else {
    702                 buffer.append(ch);
    703             }
    704         } else {
    705             char cbuffer[12];
    706 
    707             if (ch <= 0xFFFFL) {
    708                 sprintf(cbuffer, "\\u%4.4X", ch);
    709             } else {
    710                 sprintf(cbuffer, "\\U%8.8X", ch);
    711             }
    712 
    713             buffer.append(cbuffer);
    714         }
    715 
    716         if (ch >= 0x10000L) {
    717             i += 1;
    718         }
    719     }
    720 
    721     return buffer;
    722 }
    723 #endif
    724 
    725 void SSearchTest::sharpSTest()
    726 {
    727     UErrorCode status = U_ZERO_ERROR;
    728     UCollator *coll = NULL;
    729     UnicodeString lp  = "fuss";
    730     UnicodeString sp = "fu\\u00DF";
    731     UnicodeString targets[]  = {"fu\\u00DF", "fu\\u00DFball", "1fu\\u00DFball", "12fu\\u00DFball", "123fu\\u00DFball", "1234fu\\u00DFball",
    732                                 "ffu\\u00DF", "fufu\\u00DF", "fusfu\\u00DF",
    733                                 "fuss", "ffuss", "fufuss", "fusfuss", "1fuss", "12fuss", "123fuss", "1234fuss", "fu\\u00DF", "1fu\\u00DF", "12fu\\u00DF", "123fu\\u00DF", "1234fu\\u00DF"};
    734     int32_t start = -1, end = -1;
    735 
    736     coll = ucol_openFromShortString("LEN_S1", FALSE, NULL, &status);
    737     TEST_ASSERT_SUCCESS(status);
    738 
    739     UnicodeString lpUnescaped = lp.unescape();
    740     UnicodeString spUnescaped = sp.unescape();
    741 
    742     LocalUStringSearchPointer ussLong(usearch_openFromCollator(lpUnescaped.getBuffer(), lpUnescaped.length(),
    743                                                            lpUnescaped.getBuffer(), lpUnescaped.length(),   // actual test data will be set later
    744                                                            coll,
    745                                                            NULL,     // the break iterator
    746                                                            &status));
    747 
    748     LocalUStringSearchPointer ussShort(usearch_openFromCollator(spUnescaped.getBuffer(), spUnescaped.length(),
    749                                                            spUnescaped.getBuffer(), spUnescaped.length(),   // actual test data will be set later
    750                                                            coll,
    751                                                            NULL,     // the break iterator
    752                                                            &status));
    753     TEST_ASSERT_SUCCESS(status);
    754 
    755     for (uint32_t t = 0; t < (sizeof(targets)/sizeof(targets[0])); t += 1) {
    756         UBool bFound;
    757         UnicodeString target = targets[t].unescape();
    758 
    759         start = end = -1;
    760         usearch_setText(ussLong.getAlias(), target.getBuffer(), target.length(), &status);
    761         bFound = usearch_search(ussLong.getAlias(), 0, &start, &end, &status);
    762         TEST_ASSERT_SUCCESS(status);
    763         if (bFound) {
    764             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    765         } else {
    766             dataerrln("Test %d: did not find long pattern.", t);
    767         }
    768 
    769         usearch_setText(ussShort.getAlias(), target.getBuffer(), target.length(), &status);
    770         bFound = usearch_search(ussShort.getAlias(), 0, &start, &end, &status);
    771         TEST_ASSERT_SUCCESS(status);
    772         if (bFound) {
    773             logln("Test %d: found long pattern at [%d, %d].", t, start, end);
    774         } else {
    775             dataerrln("Test %d: did not find long pattern.", t);
    776         }
    777     }
    778 
    779     ucol_close(coll);
    780 }
    781 
    782 void SSearchTest::goodSuffixTest()
    783 {
    784     UErrorCode status = U_ZERO_ERROR;
    785     UCollator *coll = NULL;
    786     UnicodeString pat = /*"gcagagag"*/ "fxeld";
    787     UnicodeString target = /*"gcatcgcagagagtatacagtacg"*/ "cloveldfxeld";
    788     int32_t start = -1, end = -1;
    789     UBool bFound;
    790 
    791     coll = ucol_open(NULL, &status);
    792     TEST_ASSERT_SUCCESS(status);
    793 
    794     LocalUStringSearchPointer ss(usearch_openFromCollator(pat.getBuffer(), pat.length(),
    795                                                           target.getBuffer(), target.length(),
    796                                                           coll,
    797                                                           NULL,     // the break iterator
    798                                                           &status));
    799     TEST_ASSERT_SUCCESS(status);
    800 
    801     bFound = usearch_search(ss.getAlias(), 0, &start, &end, &status);
    802     TEST_ASSERT_SUCCESS(status);
    803     if (bFound) {
    804         logln("Found pattern at [%d, %d].", start, end);
    805     } else {
    806         dataerrln("Did not find pattern.");
    807     }
    808 
    809     ucol_close(coll);
    810 }
    811 
    812 //
    813 //  searchTime()    A quick and dirty performance test for string search.
    814 //                  Probably  doesn't really belong as part of intltest, but it
    815 //                  does check that the search succeeds, and gets the right result,
    816 //                  so it serves as a functionality test also.
    817 //
    818 //                  To run as a perf test, up the loop count, select by commenting
    819 //                  and uncommenting in the code the operation to be measured,
    820 //                  rebuild, and measure the running time of this test alone.
    821 //
    822 //                     time LD_LIBRARY_PATH=whatever  ./intltest  collate/SSearchTest/searchTime
    823 //
    824 void SSearchTest::searchTime() {
    825     static const char *longishText =
    826 "Whylom, as olde stories tellen us,\n"
    827 "Ther was a duk that highte Theseus:\n"
    828 "Of Athenes he was lord and governour,\n"
    829 "And in his tyme swich a conquerour,\n"
    830 "That gretter was ther noon under the sonne.\n"
    831 "Ful many a riche contree hadde he wonne;\n"
    832 "What with his wisdom and his chivalrye,\n"
    833 "He conquered al the regne of Femenye,\n"
    834 "That whylom was y-cleped Scithia;\n"
    835 "And weddede the quene Ipolita,\n"
    836 "And broghte hir hoom with him in his contree\n"
    837 "With muchel glorie and greet solempnitee,\n"
    838 "And eek hir yonge suster Emelye.\n"
    839 "And thus with victorie and with melodye\n"
    840 "Lete I this noble duk to Athenes ryde,\n"
    841 "And al his hoost, in armes, him bisyde.\n"
    842 "And certes, if it nere to long to here,\n"
    843 "I wolde han told yow fully the manere,\n"
    844 "How wonnen was the regne of Femenye\n"
    845 "By Theseus, and by his chivalrye;\n"
    846 "And of the grete bataille for the nones\n"
    847 "Bitwixen Athen's and Amazones;\n"
    848 "And how asseged was Ipolita,\n"
    849 "The faire hardy quene of Scithia;\n"
    850 "And of the feste that was at hir weddinge,\n"
    851 "And of the tempest at hir hoom-cominge;\n"
    852 "But al that thing I moot as now forbere.\n"
    853 "I have, God woot, a large feeld to ere,\n"
    854 "And wayke been the oxen in my plough.\n"
    855 "The remenant of the tale is long y-nough.\n"
    856 "I wol nat letten eek noon of this route;\n"
    857 "Lat every felawe telle his tale aboute,\n"
    858 "And lat see now who shal the soper winne;\n"
    859 "And ther I lefte, I wol ageyn biginne.\n"
    860 "This duk, of whom I make mencioun,\n"
    861 "When he was come almost unto the toun,\n"
    862 "In al his wele and in his moste pryde,\n"
    863 "He was war, as he caste his eye asyde,\n"
    864 "Wher that ther kneled in the hye weye\n"
    865 "A companye of ladies, tweye and tweye,\n"
    866 "Ech after other, clad in clothes blake; \n"
    867 "But swich a cry and swich a wo they make,\n"
    868 "That in this world nis creature livinge,\n"
    869 "That herde swich another weymentinge;\n"
    870 "And of this cry they nolde never stenten,\n"
    871 "Til they the reynes of his brydel henten.\n"
    872 "'What folk ben ye, that at myn hoomcominge\n"
    873 "Perturben so my feste with cryinge'?\n"
    874 "Quod Theseus, 'have ye so greet envye\n"
    875 "Of myn honour, that thus compleyne and crye? \n"
    876 "Or who hath yow misboden, or offended?\n"
    877 "And telleth me if it may been amended;\n"
    878 "And why that ye ben clothed thus in blak'?\n"
    879 "The eldest lady of hem alle spak,\n"
    880 "When she hadde swowned with a deedly chere,\n"
    881 "That it was routhe for to seen and here,\n"
    882 "And seyde: 'Lord, to whom Fortune hath yiven\n"
    883 "Victorie, and as a conquerour to liven,\n"
    884 "Noght greveth us your glorie and your honour;\n"
    885 "But we biseken mercy and socour.\n"
    886 "Have mercy on our wo and our distresse.\n"
    887 "Som drope of pitee, thurgh thy gentilesse,\n"
    888 "Up-on us wrecched wommen lat thou falle.\n"
    889 "For certes, lord, ther nis noon of us alle,\n"
    890 "That she nath been a duchesse or a quene;\n"
    891 "Now be we caitifs, as it is wel sene:\n"
    892 "Thanked be Fortune, and hir false wheel,\n"
    893 "That noon estat assureth to be weel.\n"
    894 "And certes, lord, t'abyden your presence,\n"
    895 "Here in the temple of the goddesse Clemence\n"
    896 "We han ben waytinge al this fourtenight;\n"
    897 "Now help us, lord, sith it is in thy might.\n"
    898 "I wrecche, which that wepe and waille thus,\n"
    899 "Was whylom wyf to king Capaneus,\n"
    900 "That starf at Thebes, cursed be that day!\n"
    901 "And alle we, that been in this array,\n"
    902 "And maken al this lamentacioun,\n"
    903 "We losten alle our housbondes at that toun,\n"
    904 "Whyl that the sege ther-aboute lay.\n"
    905 "And yet now th'olde Creon, weylaway!\n"
    906 "The lord is now of Thebes the citee, \n"
    907 "Fulfild of ire and of iniquitee,\n"
    908 "He, for despyt, and for his tirannye,\n"
    909 "To do the dede bodyes vileinye,\n"
    910 "Of alle our lordes, whiche that ben slawe,\n"
    911 "Hath alle the bodyes on an heep y-drawe,\n"
    912 "And wol nat suffren hem, by noon assent,\n"
    913 "Neither to been y-buried nor y-brent,\n"
    914 "But maketh houndes ete hem in despyt. zet'\n";
    915 
    916 const char *cPattern = "maketh houndes ete hem";
    917 //const char *cPattern = "Whylom";
    918 //const char *cPattern = "zet";
    919     const char *testId = "searchTime()";   // for error macros.
    920     UnicodeString target = longishText;
    921     UErrorCode status = U_ZERO_ERROR;
    922 
    923 
    924     LocalUCollatorPointer collator(ucol_open("en", &status));
    925     //ucol_setStrength(collator.getAlias(), collatorStrength);
    926     //ucol_setAttribute(collator.getAlias(), UCOL_NORMALIZATION_MODE, normalize, &status);
    927     UnicodeString uPattern = cPattern;
    928     LocalUStringSearchPointer uss(usearch_openFromCollator(uPattern.getBuffer(), uPattern.length(),
    929                                                            target.getBuffer(), target.length(),
    930                                                            collator.getAlias(),
    931                                                            NULL,     // the break iterator
    932                                                            &status));
    933     TEST_ASSERT_SUCCESS(status);
    934 
    935 //  int32_t foundStart;
    936 //  int32_t foundEnd;
    937     UBool   found;
    938 
    939     // Find the match position usgin strstr
    940     const char *pm = strstr(longishText, cPattern);
    941     TEST_ASSERT_M(pm!=NULL, "No pattern match with strstr");
    942     int32_t  refMatchPos = (int32_t)(pm - longishText);
    943     int32_t  icuMatchPos;
    944     int32_t  icuMatchEnd;
    945     usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    946     TEST_ASSERT_SUCCESS(status);
    947     TEST_ASSERT_M(refMatchPos == icuMatchPos, "strstr and icu give different match positions.");
    948 
    949     int32_t i;
    950     // int32_t j=0;
    951 
    952     // Try loopcounts around 100000 to some millions, depending on the operation,
    953     //   to get runtimes of at least several seconds.
    954     for (i=0; i<10000; i++) {
    955         found = usearch_search(uss.getAlias(), 0, &icuMatchPos, &icuMatchEnd, &status);
    956         //TEST_ASSERT_SUCCESS(status);
    957         //TEST_ASSERT(found);
    958 
    959         // usearch_setOffset(uss.getAlias(), 0, &status);
    960         // icuMatchPos = usearch_next(uss.getAlias(), &status);
    961 
    962          // The i+j stuff is to confuse the optimizer and get it to actually leave the
    963          //   call to strstr in place.
    964          //pm = strstr(longishText+j, cPattern);
    965          //j = (j + i)%5;
    966     }
    967 
    968     //printf("%ld, %d\n", pm-longishText, j);
    969 }
    970 
    971 //----------------------------------------------------------------------------------------
    972 //
    973 //   Random Numbers.  Similar to standard lib rand() and srand()
    974 //                    Not using library to
    975 //                      1.  Get same results on all platforms.
    976 //                      2.  Get access to current seed, to more easily reproduce failures.
    977 //
    978 //---------------------------------------------------------------------------------------
    979 static uint32_t m_seed = 1;
    980 
    981 static uint32_t m_rand()
    982 {
    983     m_seed = m_seed * 1103515245 + 12345;
    984     return (uint32_t)(m_seed/65536) % 32768;
    985 }
    986 
    987 class Monkey
    988 {
    989 public:
    990     virtual void append(UnicodeString &test, UnicodeString &alternate) = 0;
    991 
    992 protected:
    993     Monkey();
    994     virtual ~Monkey();
    995 };
    996 
    997 Monkey::Monkey()
    998 {
    999     // ook?
   1000 }
   1001 
   1002 Monkey::~Monkey()
   1003 {
   1004     // ook?
   1005 }
   1006 
   1007 class SetMonkey : public Monkey
   1008 {
   1009 public:
   1010     SetMonkey(const USet *theSet);
   1011     ~SetMonkey();
   1012 
   1013     virtual void append(UnicodeString &test, UnicodeString &alternate);
   1014 
   1015 private:
   1016     const USet *set;
   1017 };
   1018 
   1019 SetMonkey::SetMonkey(const USet *theSet)
   1020     : Monkey(), set(theSet)
   1021 {
   1022     // ook?
   1023 }
   1024 
   1025 SetMonkey::~SetMonkey()
   1026 {
   1027     //ook...
   1028 }
   1029 
   1030 void SetMonkey::append(UnicodeString &test, UnicodeString &alternate)
   1031 {
   1032     int32_t size = uset_size(set);
   1033     int32_t index = m_rand() % size;
   1034     UChar32 ch = uset_charAt(set, index);
   1035     UnicodeString str(ch);
   1036 
   1037     test.append(str);
   1038     alternate.append(str); // flip case, or some junk?
   1039 }
   1040 
   1041 class StringSetMonkey : public Monkey
   1042 {
   1043 public:
   1044     StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData);
   1045     ~StringSetMonkey();
   1046 
   1047     void append(UnicodeString &testCase, UnicodeString &alternate);
   1048 
   1049 private:
   1050     UnicodeString &generateAlternative(const UnicodeString &testCase, UnicodeString &alternate);
   1051 
   1052     const USet *set;
   1053     UCollator  *coll;
   1054     CollData   *collData;
   1055 };
   1056 
   1057 StringSetMonkey::StringSetMonkey(const USet *theSet, UCollator *theCollator, CollData *theCollData)
   1058 : Monkey(), set(theSet), coll(theCollator), collData(theCollData)
   1059 {
   1060     // ook.
   1061 }
   1062 
   1063 StringSetMonkey::~StringSetMonkey()
   1064 {
   1065     // ook?
   1066 }
   1067 
   1068 void StringSetMonkey::append(UnicodeString &testCase, UnicodeString &alternate)
   1069 {
   1070     int32_t itemCount = uset_getItemCount(set), len = 0;
   1071     int32_t index = m_rand() % itemCount;
   1072     UChar32 rangeStart = 0, rangeEnd = 0;
   1073     UChar buffer[16];
   1074     UErrorCode err = U_ZERO_ERROR;
   1075 
   1076     len = uset_getItem(set, index, &rangeStart, &rangeEnd, buffer, 16, &err);
   1077 
   1078     if (len == 0) {
   1079         int32_t offset = m_rand() % (rangeEnd - rangeStart + 1);
   1080         UChar32 ch = rangeStart + offset;
   1081         UnicodeString str(ch);
   1082 
   1083         testCase.append(str);
   1084         generateAlternative(str, alternate);
   1085     } else if (len > 0) {
   1086         // should check that len < 16...
   1087         UnicodeString str(buffer, len);
   1088 
   1089         testCase.append(str);
   1090         generateAlternative(str, alternate);
   1091     } else {
   1092         // shouldn't happen...
   1093     }
   1094 }
   1095 
   1096 UnicodeString &StringSetMonkey::generateAlternative(const UnicodeString &testCase, UnicodeString &alternate)
   1097 {
   1098     // find out shortest string for the longest sequence of ces.
   1099     // needs to be refined to use dynamic programming, but will be roughly right
   1100     UErrorCode status = U_ZERO_ERROR;
   1101     CEList ceList(coll, testCase, status);
   1102     UnicodeString alt;
   1103     int32_t offset = 0;
   1104 
   1105     if (ceList.size() == 0) {
   1106         return alternate.append(testCase);
   1107     }
   1108 
   1109     while (offset < ceList.size()) {
   1110         int32_t ce = ceList.get(offset);
   1111         const StringList *strings = collData->getStringList(ce);
   1112 
   1113         if (strings == NULL) {
   1114             return alternate.append(testCase);
   1115         }
   1116 
   1117         int32_t stringCount = strings->size();
   1118         int32_t tries = 0;
   1119 
   1120         // find random string that generates the same CEList
   1121         const CEList *ceList2 = NULL;
   1122         const UnicodeString *string = NULL;
   1123               UBool matches = FALSE;
   1124 
   1125         do {
   1126             int32_t s = m_rand() % stringCount;
   1127 
   1128             if (tries++ > stringCount) {
   1129                 alternate.append(testCase);
   1130                 return alternate;
   1131             }
   1132 
   1133             string = strings->get(s);
   1134             ceList2 = collData->getCEList(string);
   1135             matches = ceList.matchesAt(offset, ceList2);
   1136 
   1137             if (! matches) {
   1138                 collData->freeCEList((CEList *) ceList2);
   1139             }
   1140         } while (! matches);
   1141 
   1142         alt.append(*string);
   1143         offset += ceList2->size();
   1144         collData->freeCEList(ceList2);
   1145     }
   1146 
   1147     const CEList altCEs(coll, alt, status);
   1148 
   1149     if (ceList.matchesAt(0, &altCEs)) {
   1150         return alternate.append(alt);
   1151     }
   1152 
   1153     return alternate.append(testCase);
   1154 }
   1155 
   1156 static void generateTestCase(UCollator *coll, Monkey *monkeys[], int32_t monkeyCount, UnicodeString &testCase, UnicodeString &alternate)
   1157 {
   1158     int32_t pieces = (m_rand() % 4) + 1;
   1159     UErrorCode status = U_ZERO_ERROR;
   1160     UBool matches;
   1161 
   1162     do {
   1163         testCase.remove();
   1164         alternate.remove();
   1165         monkeys[0]->append(testCase, alternate);
   1166 
   1167         for(int32_t piece = 0; piece < pieces; piece += 1) {
   1168             int32_t monkey = m_rand() % monkeyCount;
   1169 
   1170             monkeys[monkey]->append(testCase, alternate);
   1171         }
   1172 
   1173         const CEList ceTest(coll, testCase, status);
   1174         const CEList ceAlt(coll, alternate, status);
   1175 
   1176         matches = ceTest.matchesAt(0, &ceAlt);
   1177     } while (! matches);
   1178 }
   1179 
   1180 static UBool simpleSearch(UCollator *coll, const UnicodeString &target, int32_t offset, const UnicodeString &pattern, int32_t &matchStart, int32_t &matchEnd)
   1181 {
   1182     UErrorCode      status = U_ZERO_ERROR;
   1183     OrderList       targetOrders(coll, target, offset);
   1184     OrderList       patternOrders(coll, pattern);
   1185     int32_t         targetSize  = targetOrders.size() - 1;
   1186     int32_t         patternSize = patternOrders.size() - 1;
   1187     UBreakIterator *charBreakIterator = ubrk_open(UBRK_CHARACTER, ucol_getLocaleByType(coll, ULOC_VALID_LOCALE, &status),
   1188                                                   target.getBuffer(), target.length(), &status);
   1189 
   1190     if (patternSize == 0) {
   1191         // Searching for an empty pattern always fails
   1192         matchStart = matchEnd = -1;
   1193         ubrk_close(charBreakIterator);
   1194         return FALSE;
   1195     }
   1196 
   1197     matchStart = matchEnd = -1;
   1198 
   1199     for(int32_t i = 0; i < targetSize; i += 1) {
   1200         if (targetOrders.matchesAt(i, patternOrders)) {
   1201             int32_t start    = targetOrders.getLowOffset(i);
   1202             int32_t maxLimit = targetOrders.getLowOffset(i + patternSize);
   1203             int32_t minLimit = targetOrders.getLowOffset(i + patternSize - 1);
   1204 
   1205             // if the low and high offsets of the first CE in
   1206             // the match are the same, it means that the match
   1207             // starts in the middle of an expansion - all but
   1208             // the first CE of the expansion will have the offset
   1209             // of the following character.
   1210             if (start == targetOrders.getHighOffset(i)) {
   1211                 continue;
   1212             }
   1213 
   1214             // Make sure match starts on a grapheme boundary
   1215             if (! ubrk_isBoundary(charBreakIterator, start)) {
   1216                 continue;
   1217             }
   1218 
   1219             // If the low and high offsets of the CE after the match
   1220             // are the same, it means that the match ends in the middle
   1221             // of an expansion sequence.
   1222             if (maxLimit == targetOrders.getHighOffset(i + patternSize) &&
   1223                 targetOrders.getOrder(i + patternSize) != UCOL_NULLORDER) {
   1224                 continue;
   1225             }
   1226 
   1227             int32_t mend = maxLimit;
   1228 
   1229             // Find the first grapheme break after the character index
   1230             // of the last CE in the match. If it's after character index
   1231             // that's after the last CE in the match, use that index
   1232             // as the end of the match.
   1233             if (minLimit < maxLimit) {
   1234                 // When the last CE's low index is same with its high index, the CE is likely
   1235                 // a part of expansion. In this case, the index is located just after the
   1236                 // character corresponding to the CEs compared above. If the index is right
   1237                 // at the break boundary, move the position to the next boundary will result
   1238                 // incorrect match length when there are ignorable characters exist between
   1239                 // the position and the next character produces CE(s). See ticket#8482.
   1240                 if (minLimit == targetOrders.getHighOffset(i + patternSize - 1) && ubrk_isBoundary(charBreakIterator, minLimit)) {
   1241                     mend = minLimit;
   1242                 } else {
   1243                     int32_t nba = ubrk_following(charBreakIterator, minLimit);
   1244 
   1245                     if (nba >= targetOrders.getHighOffset(i + patternSize - 1)) {
   1246                         mend = nba;
   1247                     }
   1248                 }
   1249             }
   1250 
   1251             if (mend > maxLimit) {
   1252                 continue;
   1253             }
   1254 
   1255             if (! ubrk_isBoundary(charBreakIterator, mend)) {
   1256                 continue;
   1257             }
   1258 
   1259             matchStart = start;
   1260             matchEnd   = mend;
   1261 
   1262             ubrk_close(charBreakIterator);
   1263             return TRUE;
   1264         }
   1265     }
   1266 
   1267     ubrk_close(charBreakIterator);
   1268     return FALSE;
   1269 }
   1270 
   1271 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1272 static int32_t  getIntParam(UnicodeString name, UnicodeString &params, int32_t defaultVal) {
   1273     int32_t val = defaultVal;
   1274 
   1275     name.append(" *= *(-?\\d+)");
   1276 
   1277     UErrorCode status = U_ZERO_ERROR;
   1278     RegexMatcher m(name, params, 0, status);
   1279 
   1280     if (m.find()) {
   1281         // The param exists.  Convert the string to an int.
   1282         char valString[100];
   1283         int32_t paramLength = m.end(1, status) - m.start(1, status);
   1284 
   1285         if (paramLength >= (int32_t)(sizeof(valString)-1)) {
   1286             paramLength = (int32_t)(sizeof(valString)-2);
   1287         }
   1288 
   1289         params.extract(m.start(1, status), paramLength, valString, sizeof(valString));
   1290         val = uprv_strtol(valString,  NULL, 10);
   1291 
   1292         // Delete this parameter from the params string.
   1293         m.reset();
   1294         params = m.replaceFirst("", status);
   1295     }
   1296 
   1297   //U_ASSERT(U_SUCCESS(status));
   1298     if (! U_SUCCESS(status)) {
   1299         val = defaultVal;
   1300     }
   1301 
   1302     return val;
   1303 }
   1304 #endif
   1305 
   1306 #if !UCONFIG_NO_COLLATION
   1307 int32_t SSearchTest::monkeyTestCase(UCollator *coll, const UnicodeString &testCase, const UnicodeString &pattern, const UnicodeString &altPattern,
   1308                                     const char *name, const char *strength, uint32_t seed)
   1309 {
   1310     UErrorCode status = U_ZERO_ERROR;
   1311     int32_t actualStart = -1, actualEnd = -1;
   1312   //int32_t expectedStart = prefix.length(), expectedEnd = prefix.length() + altPattern.length();
   1313     int32_t expectedStart = -1, expectedEnd = -1;
   1314     int32_t notFoundCount = 0;
   1315     LocalUStringSearchPointer uss(usearch_openFromCollator(pattern.getBuffer(), pattern.length(),
   1316                                                            testCase.getBuffer(), testCase.length(),
   1317                                                            coll,
   1318                                                            NULL,     // the break iterator
   1319                                                            &status));
   1320 
   1321     // **** TODO: find *all* matches, not just first one ****
   1322     simpleSearch(coll, testCase, 0, pattern, expectedStart, expectedEnd);
   1323 
   1324     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1325 
   1326     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1327         errln("Search for <pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1328               "    strength=%s seed=%d",
   1329               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1330     }
   1331 
   1332     if (expectedStart == -1 && actualStart == -1) {
   1333         notFoundCount += 1;
   1334     }
   1335 
   1336     // **** TODO: find *all* matches, not just first one ****
   1337     simpleSearch(coll, testCase, 0, altPattern, expectedStart, expectedEnd);
   1338 
   1339     usearch_setPattern(uss.getAlias(), altPattern.getBuffer(), altPattern.length(), &status);
   1340 
   1341     usearch_search(uss.getAlias(), 0, &actualStart, &actualEnd, &status);
   1342 
   1343     if (expectedStart >= 0 && (actualStart != expectedStart || actualEnd != expectedEnd)) {
   1344         errln("Search for <alt_pattern> in <%s> failed: expected [%d, %d], got [%d, %d]\n"
   1345               "    strength=%s seed=%d",
   1346               name, expectedStart, expectedEnd, actualStart, actualEnd, strength, seed);
   1347     }
   1348 
   1349     if (expectedStart == -1 && actualStart == -1) {
   1350         notFoundCount += 1;
   1351     }
   1352 
   1353     return notFoundCount;
   1354 }
   1355 #endif
   1356 
   1357 void SSearchTest::monkeyTest(char *params)
   1358 {
   1359     // ook!
   1360     UErrorCode status = U_ZERO_ERROR;
   1361   //UCollator *coll = ucol_open(NULL, &status);
   1362     UCollator *coll = ucol_openFromShortString("S1", FALSE, NULL, &status);
   1363 
   1364     if (U_FAILURE(status)) {
   1365         errcheckln(status, "Failed to create collator in MonkeyTest! - %s", u_errorName(status));
   1366         return;
   1367     }
   1368 
   1369     CollData  *monkeyData = new CollData(coll, status);
   1370 
   1371     USet *expansions   = uset_openEmpty();
   1372     USet *contractions = uset_openEmpty();
   1373 
   1374     ucol_getContractionsAndExpansions(coll, contractions, expansions, FALSE, &status);
   1375 
   1376     U_STRING_DECL(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1377     U_STRING_INIT(letter_pattern, "[[:letter:]-[:ideographic:]-[:hangul:]]", 39);
   1378     USet *letters = uset_openPattern(letter_pattern, 39, &status);
   1379     SetMonkey letterMonkey(letters);
   1380     StringSetMonkey contractionMonkey(contractions, coll, monkeyData);
   1381     StringSetMonkey expansionMonkey(expansions, coll, monkeyData);
   1382     UnicodeString testCase;
   1383     UnicodeString alternate;
   1384     UnicodeString pattern, altPattern;
   1385     UnicodeString prefix, altPrefix;
   1386     UnicodeString suffix, altSuffix;
   1387 
   1388     Monkey *monkeys[] = {
   1389         &letterMonkey,
   1390         &contractionMonkey,
   1391         &expansionMonkey,
   1392         &contractionMonkey,
   1393         &expansionMonkey,
   1394         &contractionMonkey,
   1395         &expansionMonkey,
   1396         &contractionMonkey,
   1397         &expansionMonkey};
   1398     int32_t monkeyCount = sizeof(monkeys) / sizeof(monkeys[0]);
   1399     // int32_t nonMatchCount = 0;
   1400 
   1401     UCollationStrength strengths[] = {UCOL_PRIMARY, UCOL_SECONDARY, UCOL_TERTIARY};
   1402     const char *strengthNames[] = {"primary", "secondary", "tertiary"};
   1403     int32_t strengthCount = sizeof(strengths) / sizeof(strengths[0]);
   1404     int32_t loopCount = quick? 1000 : 10000;
   1405     int32_t firstStrength = 0;
   1406     int32_t lastStrength  = strengthCount - 1; //*/ 0;
   1407 
   1408     if (params != NULL) {
   1409 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
   1410         UnicodeString p(params);
   1411 
   1412         loopCount = getIntParam("loop", p, loopCount);
   1413         m_seed    = getIntParam("seed", p, m_seed);
   1414 
   1415         RegexMatcher m(" *strength *= *(primary|secondary|tertiary) *", p, 0, status);
   1416         if (m.find()) {
   1417             UnicodeString breakType = m.group(1, status);
   1418 
   1419             for (int32_t s = 0; s < strengthCount; s += 1) {
   1420                 if (breakType == strengthNames[s]) {
   1421                     firstStrength = lastStrength = s;
   1422                     break;
   1423                 }
   1424             }
   1425 
   1426             m.reset();
   1427             p = m.replaceFirst("", status);
   1428         }
   1429 
   1430         if (RegexMatcher("\\S", p, 0, status).find()) {
   1431             // Each option is stripped out of the option string as it is processed.
   1432             // All options have been checked.  The option string should have been completely emptied..
   1433             char buf[100];
   1434             p.extract(buf, sizeof(buf), NULL, status);
   1435             buf[sizeof(buf)-1] = 0;
   1436             errln("Unrecognized or extra parameter:  %s\n", buf);
   1437             return;
   1438         }
   1439 #else
   1440         infoln("SSearchTest built with UCONFIG_NO_REGULAR_EXPRESSIONS: ignoring parameters.");
   1441 #endif
   1442     }
   1443 
   1444     for(int32_t s = firstStrength; s <= lastStrength; s += 1) {
   1445         int32_t notFoundCount = 0;
   1446 
   1447         logln("Setting strength to %s.", strengthNames[s]);
   1448         ucol_setStrength(coll, strengths[s]);
   1449 
   1450         // TODO: try alternate prefix and suffix too?
   1451         // TODO: alterntaes are only equal at primary strength. Is this OK?
   1452         for(int32_t t = 0; t < loopCount; t += 1) {
   1453             uint32_t seed = m_seed;
   1454             // int32_t  nmc = 0;
   1455 
   1456             generateTestCase(coll, monkeys, monkeyCount, pattern, altPattern);
   1457             generateTestCase(coll, monkeys, monkeyCount, prefix,  altPrefix);
   1458             generateTestCase(coll, monkeys, monkeyCount, suffix,  altSuffix);
   1459 
   1460             // pattern
   1461             notFoundCount += monkeyTestCase(coll, pattern, pattern, altPattern, "pattern", strengthNames[s], seed);
   1462 
   1463             testCase.remove();
   1464             testCase.append(prefix);
   1465             testCase.append(/*alt*/pattern);
   1466 
   1467             // prefix + pattern
   1468             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern", strengthNames[s], seed);
   1469 
   1470             testCase.append(suffix);
   1471 
   1472             // prefix + pattern + suffix
   1473             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "prefix + pattern + suffix", strengthNames[s], seed);
   1474 
   1475             testCase.remove();
   1476             testCase.append(pattern);
   1477             testCase.append(suffix);
   1478 
   1479             // pattern + suffix
   1480             notFoundCount += monkeyTestCase(coll, testCase, pattern, altPattern, "pattern + suffix", strengthNames[s], seed);
   1481         }
   1482 
   1483        logln("For strength %s the not found count is %d.", strengthNames[s], notFoundCount);
   1484     }
   1485 
   1486     uset_close(contractions);
   1487     uset_close(expansions);
   1488     uset_close(letters);
   1489     delete monkeyData;
   1490 
   1491     ucol_close(coll);
   1492 }
   1493 
   1494 #endif
   1495 
   1496 #endif
   1497