icuSources/tools/gensprep/store.c

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 1999-2012, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *   file name:  store.c
   9 *   encoding:   US-ASCII
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 *   created on: 2003-02-06
  14 *   created by: Ram Viswanadha
  15 *
  16 */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include "unicode/utypes.h"
  21 #include "cmemory.h"
  22 #include "cstring.h"
  23 #include "filestrm.h"
  24 #include "unicode/udata.h"
  25 #include "unicode/utf16.h"
  26 #include "utrie.h"
  27 #include "unewdata.h"
  28 #include "gensprep.h"
  29 #include "uhash.h"
  30
  31
  32 #define DO_DEBUG_OUT 0
  33
  34
  35 /*
  36  * StringPrep profile file format ------------------------------------
  37  *
  38  * The file format prepared and written here contains a 16-bit trie and a mapping table.
  39  *
  40  * Before the data contents described below, there are the headers required by
  41  * the udata API for loading ICU data. Especially, a UDataInfo structure
  42  * precedes the actual data. It contains platform properties values and the
  43  * file format version.
  44  *
  45  * The following is a description of format version 2.
  46  *
  47  * Data contents:
  48  *
  49  * The contents is a parsed, binary form of RFC3454 and possibly
  50  * NormalizationCorrections.txt depending on the options specified on the profile.
  51  *
  52  * Any Unicode code point from 0 to 0x10ffff can be looked up to get
  53  * the trie-word, if any, for that code point. This means that the input
  54  * to the lookup are 21-bit unsigned integers, with not all of the
  55  * 21-bit range used.
  56  *
  57  * *.spp files customarily begin with a UDataInfo structure, see udata.h and .c.
  58  * After that there are the following structures:
  59  *
  60  * int32_t indexes[_SPREP_INDEX_TOP];           -- _SPREP_INDEX_TOP=16, see enum in sprpimpl.h file
  61  *
  62  * UTrie stringPrepTrie;                        -- size in bytes=indexes[_SPREP_INDEX_TRIE_SIZE]
  63  *
  64  * uint16_t mappingTable[];                     -- Contains the sequecence of code units that the code point maps to
  65  *                                                 size in bytes = indexes[_SPREP_INDEX_MAPPING_DATA_SIZE]
  66  *
  67  * The indexes array contains the following values:
  68  *  indexes[_SPREP_INDEX_TRIE_SIZE]                  -- The size of the StringPrep trie in bytes
  69  *  indexes[_SPREP_INDEX_MAPPING_DATA_SIZE]          -- The size of the mappingTable in bytes
  70  *  indexes[_SPREP_NORM_CORRECTNS_LAST_UNI_VERSION]  -- The index of Unicode version of last entry in NormalizationCorrections.txt
  71  *  indexes[_SPREP_ONE_UCHAR_MAPPING_INDEX_START]    -- The starting index of 1 UChar  mapping index in the mapping table
  72  *  indexes[_SPREP_TWO_UCHARS_MAPPING_INDEX_START]   -- The starting index of 2 UChars mapping index in the mapping table
  73  *  indexes[_SPREP_THREE_UCHARS_MAPPING_INDEX_START] -- The starting index of 3 UChars mapping index in the mapping table
  74  *  indexes[_SPREP_FOUR_UCHARS_MAPPING_INDEX_START]  -- The starting index of 4 UChars mapping index in the mapping table
  75  *  indexes[_SPREP_OPTIONS]                          -- Bit set of options to turn on in the profile, e.g: USPREP_NORMALIZATION_ON, USPREP_CHECK_BIDI_ON
  76  *
  77  *
  78  * StringPrep Trie :
  79  *
  80  * The StringPrep tries is a 16-bit trie that contains data for the profile.
  81  * Each code point is associated with a value (trie-word) in the trie.
  82  *
  83  * - structure of data words from the trie
  84  *
  85  *  i)  A value greater than or equal to _SPREP_TYPE_THRESHOLD (0xFFF0)
  86  *      represents the type associated with the code point
  87  *      if(trieWord >= _SPREP_TYPE_THRESHOLD){
  88  *          type = trieWord - 0xFFF0;
  89  *      }
  90  *      The type can be :
  91  *             USPREP_UNASSIGNED
  92  *             USPREP_PROHIBITED
  93  *             USPREP_DELETE
  94  *
  95  *  ii) A value less than _SPREP_TYPE_THRESHOLD means the type is USPREP_MAP and
  96  *      contains distribution described below
  97  *
  98  *      0       -  ON : The code point is prohibited (USPREP_PROHIBITED). This is to allow for codepoint that are both prohibited and mapped.
  99  *      1       -  ON : The value in the next 14 bits is an index into the mapping table
 100  *                 OFF: The value in the next 14 bits is an delta value from the code point
 101  *      2..15   -  Contains data as described by bit 1. If all bits are set
 102  *                 (value = _SPREP_MAX_INDEX_VALUE) then the type is USPREP_DELETE
 103  *
 104  *
 105  * Mapping Table:
 106  * The data in mapping table is sorted according to the length of the mapping sequence.
 107  * If the type of the code point is USPREP_MAP and value in trie word is an index, the index
 108  * is compared with start indexes of sequence length start to figure out the length according to
 109  * the following algorithm:
 110  *
 111  *              if(       index >= indexes[_SPREP_ONE_UCHAR_MAPPING_INDEX_START] &&
 112  *                        index < indexes[_SPREP_TWO_UCHARS_MAPPING_INDEX_START]){
 113  *                   length = 1;
 114  *               }else if(index >= indexes[_SPREP_TWO_UCHARS_MAPPING_INDEX_START] &&
 115  *                        index < indexes[_SPREP_THREE_UCHARS_MAPPING_INDEX_START]){
 116  *                   length = 2;
 117  *               }else if(index >= indexes[_SPREP_THREE_UCHARS_MAPPING_INDEX_START] &&
 118  *                        index < indexes[_SPREP_FOUR_UCHARS_MAPPING_INDEX_START]){
 119  *                   length = 3;
 120  *               }else{
 121  *                   // The first position in the mapping table contains the length
 122  *                   // of the sequence
 123  *                   length = mappingTable[index++];
 124  *
 125  *               }
 126  *
 127  */
 128
 129 /* file data ---------------------------------------------------------------- */
 130 /* indexes[] value names */
 131
 132 #if UCONFIG_NO_IDNA
 133
 134 /* dummy UDataInfo cf. udata.h */
 135 static UDataInfo dataInfo = {
 136     sizeof(UDataInfo),
 137     0,
 138
 139     U_IS_BIG_ENDIAN,
 140     U_CHARSET_FAMILY,
 141     U_SIZEOF_UCHAR,
 142     0,
 143
 144     { 0, 0, 0, 0 },                 /* dummy dataFormat */
 145     { 0, 0, 0, 0 },                 /* dummy formatVersion */
 146     { 0, 0, 0, 0 }                  /* dummy dataVersion */
 147 };
 148
 149 #else
 150
 151 static int32_t indexes[_SPREP_INDEX_TOP]={ 0 };
 152
 153 static uint16_t* mappingData= NULL;
 154 static int32_t mappingDataCapacity = 0; /* we skip the first index in mapping data */
 155 static int16_t currentIndex = 0; /* the current index into the data trie */
 156 static int32_t maxLength = 0;  /* maximum length of mapping string */
 157
 158
 159 /* UDataInfo cf. udata.h */
 160 static UDataInfo dataInfo={
 161     sizeof(UDataInfo),
 162     0,
 163
 164     U_IS_BIG_ENDIAN,
 165     U_CHARSET_FAMILY,
 166     U_SIZEOF_UCHAR,
 167     0,
 168
 169     { 0x53, 0x50, 0x52, 0x50 },                 /* dataFormat="SPRP" */
 170     { 3, 2, UTRIE_SHIFT, UTRIE_INDEX_SHIFT },   /* formatVersion */
 171     { 3, 2, 0, 0 }                              /* dataVersion (Unicode version) */
 172 };
 173 void
 174 setUnicodeVersion(const char *v) {
 175     UVersionInfo version;
 176     u_versionFromString(version, v);
 177     uprv_memcpy(dataInfo.dataVersion, version, 4);
 178 }
 179
 180 void
 181 setUnicodeVersionNC(UVersionInfo version){
 182     uint32_t univer = version[0] << 24;
 183     univer += version[1] << 16;
 184     univer += version[2] << 8;
 185     univer += version[3];
 186     indexes[_SPREP_NORM_CORRECTNS_LAST_UNI_VERSION] = univer;
 187 }
 188 static UNewTrie *sprepTrie;
 189
 190 #define MAX_DATA_LENGTH 11500
 191
 192
 193 #define SPREP_DELTA_RANGE_POSITIVE_LIMIT              8191
 194 #define SPREP_DELTA_RANGE_NEGATIVE_LIMIT              -8192
 195
 196
 197 extern void
 198 init() {
 199
 200     sprepTrie = (UNewTrie *)uprv_calloc(1, sizeof(UNewTrie));
 201
 202     /* initialize the two tries */
 203     if(NULL==utrie_open(sprepTrie, NULL, MAX_DATA_LENGTH, 0, 0, FALSE)) {
 204         fprintf(stderr, "error: failed to initialize tries\n");
 205         exit(U_MEMORY_ALLOCATION_ERROR);
 206     }
 207 }
 208
 209 static UHashtable* hashTable = NULL;
 210
 211
 212 typedef struct ValueStruct {
 213     UChar* mapping;
 214     int16_t length;
 215     UStringPrepType type;
 216 } ValueStruct;
 217
 218 /* Callback for deleting the value from the hashtable */
 219 static void U_CALLCONV valueDeleter(void* obj){
 220     ValueStruct* value = (ValueStruct*) obj;
 221     uprv_free(value->mapping);
 222     uprv_free(value);
 223 }
 224
 225 /* Callback for hashing the entry */
 226 static int32_t U_CALLCONV hashEntry(const UHashTok parm) {
 227     return  parm.integer;
 228 }
 229
 230 /* Callback for comparing two entries */
 231 static UBool U_CALLCONV compareEntries(const UHashTok p1, const UHashTok p2) {
 232     return (UBool)(p1.integer != p2.integer);
 233 }
 234
 235
 236 static void
 237 storeMappingData(){
 238
 239     int32_t pos = -1;
 240     const UHashElement* element = NULL;
 241     ValueStruct* value  = NULL;
 242     int32_t codepoint = 0;
 243     int32_t elementCount = 0;
 244     int32_t writtenElementCount = 0;
 245     int32_t mappingLength = 1; /* minimum mapping length */
 246     int32_t oldMappingLength = 0;
 247     uint16_t trieWord =0;
 248     int32_t limitIndex = 0;
 249
 250     if (hashTable == NULL) {
 251         return;
 252     }
 253     elementCount = uhash_count(hashTable);
 254
 255         /*initialize the mapping data */
 256     mappingData = (uint16_t*) uprv_calloc(mappingDataCapacity, U_SIZEOF_UCHAR);
 257
 258     while(writtenElementCount < elementCount){
 259
 260         while( (element = uhash_nextElement(hashTable, &pos))!=NULL){
 261
 262             codepoint = element->key.integer;
 263             value = (ValueStruct*)element->value.pointer;
 264
 265             /* store the start of indexes */
 266             if(oldMappingLength != mappingLength){
 267                 /* Assume that index[] is used according to the enums defined */
 268                 if(oldMappingLength <=_SPREP_MAX_INDEX_TOP_LENGTH){
 269                     indexes[_SPREP_NORM_CORRECTNS_LAST_UNI_VERSION+mappingLength] = currentIndex;
 270                 }
 271                 if(oldMappingLength <= _SPREP_MAX_INDEX_TOP_LENGTH &&
 272                    mappingLength == _SPREP_MAX_INDEX_TOP_LENGTH +1){
 273
 274                     limitIndex = currentIndex;
 275
 276                 }
 277                 oldMappingLength = mappingLength;
 278             }
 279
 280             if(value->length == mappingLength){
 281                 uint32_t savedTrieWord = 0;
 282                 trieWord = currentIndex << 2;
 283                 /* turn on the 2nd bit to signal that the following bits contain an index */
 284                 trieWord += 0x02;
 285
 286                 if(trieWord > _SPREP_TYPE_THRESHOLD){
 287                     fprintf(stderr,"trieWord cannot contain value greater than 0x%04X.\n",_SPREP_TYPE_THRESHOLD);
 288                     exit(U_ILLEGAL_CHAR_FOUND);
 289                 }
 290                 /* figure out if the code point has type already stored */
 291                 savedTrieWord= utrie_get32(sprepTrie,codepoint,NULL);
 292                 if(savedTrieWord!=0){
 293                     if((savedTrieWord- _SPREP_TYPE_THRESHOLD) == USPREP_PROHIBITED){
 294                         /* turn on the first bit in trie word */
 295                         trieWord += 0x01;
 296                     }else{
 297                         /*
 298                          * the codepoint has value something other than prohibited
 299                          * and a mapping .. error!
 300                          */
 301                         fprintf(stderr,"Type for codepoint \\U%08X already set!.\n", (int)codepoint);
 302                         exit(U_ILLEGAL_ARGUMENT_ERROR);
 303                     }
 304                 }
 305
 306                 /* now set the value in the trie */
 307                 if(!utrie_set32(sprepTrie,codepoint,trieWord)){
 308                     fprintf(stderr,"Could not set the value for code point.\n");
 309                     exit(U_ILLEGAL_ARGUMENT_ERROR);
 310                 }
 311
 312                 /* written the trie word for the codepoint... increment the count*/
 313                 writtenElementCount++;
 314
 315                 /* sanity check are we exceeding the max number allowed */
 316                 if(currentIndex+value->length+1 > _SPREP_MAX_INDEX_VALUE){
 317                     fprintf(stderr, "Too many entries in the mapping table %i. Maximum allowed is %i\n", currentIndex+value->length, _SPREP_MAX_INDEX_VALUE);
 318                     exit(U_INDEX_OUTOFBOUNDS_ERROR);
 319                 }
 320
 321                 /* copy the mapping data */
 322                 if(currentIndex+value->length+1 <= mappingDataCapacity){
 323                     /* write the length */
 324                     if(mappingLength > _SPREP_MAX_INDEX_TOP_LENGTH ){
 325                          /* the cast here is safe since we donot expect the length to be > 65535 */
 326                          mappingData[currentIndex++] = (uint16_t) mappingLength;
 327                     }
 328                     /* copy the contents to mappindData array */
 329                     uprv_memmove(mappingData+currentIndex, value->mapping, value->length*U_SIZEOF_UCHAR);
 330                     currentIndex += value->length;
 331
 332                 }else{
 333                     /* realloc */
 334                     UChar* newMappingData = (uint16_t*) uprv_malloc(U_SIZEOF_UCHAR * mappingDataCapacity*2);
 335                     if(newMappingData == NULL){
 336                         fprintf(stderr, "Could not realloc the mapping data!\n");
 337                         exit(U_MEMORY_ALLOCATION_ERROR);
 338                     }
 339                     uprv_memmove(newMappingData, mappingData, U_SIZEOF_UCHAR * mappingDataCapacity);
 340                     mappingDataCapacity *= 2;
 341                     uprv_free(mappingData);
 342                     mappingData = newMappingData;
 343                     /* write the length */
 344                     if(mappingLength > _SPREP_MAX_INDEX_TOP_LENGTH ){
 345                          /* the cast here is safe since we donot expect the length to be > 65535 */
 346                          mappingData[currentIndex++] = (uint16_t) mappingLength;
 347                     }
 348                     /* continue copying */
 349                     uprv_memmove(mappingData+currentIndex, value->mapping, value->length*U_SIZEOF_UCHAR);
 350                     currentIndex += value->length;
 351                 }
 352
 353             }
 354         }
 355         mappingLength++;
 356         pos = -1;
 357     }
 358     /* set the last length for range check */
 359     if(mappingLength <= _SPREP_MAX_INDEX_TOP_LENGTH){
 360         indexes[_SPREP_NORM_CORRECTNS_LAST_UNI_VERSION+mappingLength] = currentIndex+1;
 361     }else{
 362         indexes[_SPREP_FOUR_UCHARS_MAPPING_INDEX_START] = limitIndex;
 363     }
 364
 365 }
 366
 367 extern void setOptions(int32_t options){
 368     indexes[_SPREP_OPTIONS] = options;
 369 }
 370 extern void
 371 storeMapping(uint32_t codepoint, uint32_t* mapping,int32_t length,
 372              UStringPrepType type, UErrorCode* status){
 373
 374
 375     UChar* map = NULL;
 376     int16_t adjustedLen=0, i;
 377     uint16_t trieWord = 0;
 378     ValueStruct *value = NULL;
 379     uint32_t savedTrieWord = 0;
 380
 381     /* initialize the hashtable */
 382     if(hashTable==NULL){
 383         hashTable = uhash_open(hashEntry, compareEntries, NULL, status);
 384         uhash_setValueDeleter(hashTable, valueDeleter);
 385     }
 386
 387     /* figure out if the code point has type already stored */
 388     savedTrieWord= utrie_get32(sprepTrie,codepoint,NULL);
 389     if(savedTrieWord!=0){
 390         if((savedTrieWord- _SPREP_TYPE_THRESHOLD) == USPREP_PROHIBITED){
 391             /* turn on the first bit in trie word */
 392             trieWord += 0x01;
 393         }else{
 394             /*
 395              * the codepoint has value something other than prohibited
 396              * and a mapping .. error!
 397              */
 398             fprintf(stderr,"Type for codepoint \\U%08X already set!.\n", (int)codepoint);
 399             exit(U_ILLEGAL_ARGUMENT_ERROR);
 400         }
 401     }
 402
 403     /* figure out the real length */
 404     for(i=0; i<length; i++){
 405         if(mapping[i] > 0xFFFF){
 406             adjustedLen +=2;
 407         }else{
 408             adjustedLen++;
 409         }
 410     }
 411
 412     if(adjustedLen == 0){
 413         trieWord = (uint16_t)(_SPREP_MAX_INDEX_VALUE << 2);
 414         /* make sure that the value of trieWord is less than the threshold */
 415         if(trieWord < _SPREP_TYPE_THRESHOLD){
 416             /* now set the value in the trie */
 417             if(!utrie_set32(sprepTrie,codepoint,trieWord)){
 418                 fprintf(stderr,"Could not set the value for code point.\n");
 419                 exit(U_ILLEGAL_ARGUMENT_ERROR);
 420             }
 421             /* value is set so just return */
 422             return;
 423         }else{
 424             fprintf(stderr,"trieWord cannot contain value greater than threshold 0x%04X.\n",_SPREP_TYPE_THRESHOLD);
 425             exit(U_ILLEGAL_CHAR_FOUND);
 426         }
 427     }
 428
 429     if(adjustedLen == 1){
 430         /* calculate the delta */
 431         int16_t delta = (int16_t)((int32_t)codepoint - (int16_t) mapping[0]);
 432         if(delta >= SPREP_DELTA_RANGE_NEGATIVE_LIMIT && delta <= SPREP_DELTA_RANGE_POSITIVE_LIMIT){
 433
 434             trieWord = delta << 2;
 435
 436
 437             /* make sure that the second bit is OFF */
 438             if((trieWord & 0x02) != 0 ){
 439                 fprintf(stderr,"The second bit in the trie word is not zero while storing a delta.\n");
 440                 exit(U_INTERNAL_PROGRAM_ERROR);
 441             }
 442             /* make sure that the value of trieWord is less than the threshold */
 443             if(trieWord < _SPREP_TYPE_THRESHOLD){
 444                 /* now set the value in the trie */
 445                 if(!utrie_set32(sprepTrie,codepoint,trieWord)){
 446                     fprintf(stderr,"Could not set the value for code point.\n");
 447                     exit(U_ILLEGAL_ARGUMENT_ERROR);
 448                 }
 449                 /* value is set so just return */
 450                 return;
 451             }
 452         }
 453         /*
 454          * if the delta is not in the given range or if the trieWord is larger than the threshold
 455          * just fall through for storing the mapping in the mapping table
 456          */
 457     }
 458
 459     map = (UChar*) uprv_calloc(adjustedLen + 1, U_SIZEOF_UCHAR);
 460     i=0;
 461
 462     while(i<length){
 463         if(mapping[i] <= 0xFFFF){
 464             map[i] = (uint16_t)mapping[i];
 465         }else{
 466             map[i]   = U16_LEAD(mapping[i]);
 467             map[i+1] = U16_TRAIL(mapping[i]);
 468         }
 469         i++;
 470     }
 471
 472     value = (ValueStruct*) uprv_malloc(sizeof(ValueStruct));
 473     value->mapping = map;
 474     value->type   = type;
 475     value->length  = adjustedLen;
 476     if(value->length > _SPREP_MAX_INDEX_TOP_LENGTH){
 477         mappingDataCapacity++;
 478     }
 479     if(maxLength < value->length){
 480         maxLength = value->length;
 481     }
 482     uhash_iput(hashTable,codepoint,value,status);
 483     mappingDataCapacity += adjustedLen;
 484
 485     if(U_FAILURE(*status)){
 486         fprintf(stderr, "Failed to put entries into the hastable. Error: %s\n", u_errorName(*status));
 487         exit(*status);
 488     }
 489 }
 490
 491
 492 extern void
 493 storeRange(uint32_t start, uint32_t end, UStringPrepType type,UErrorCode* status){
 494     uint16_t trieWord = 0;
 495
 496     if((int)(_SPREP_TYPE_THRESHOLD + type) > 0xFFFF){
 497         fprintf(stderr,"trieWord cannot contain value greater than 0xFFFF.\n");
 498         exit(U_ILLEGAL_CHAR_FOUND);
 499     }
 500     trieWord = (_SPREP_TYPE_THRESHOLD + type); /* the top 4 bits contain the value */
 501     if(start == end){
 502         uint32_t savedTrieWord = utrie_get32(sprepTrie, start, NULL);
 503         if(savedTrieWord>0){
 504             if(savedTrieWord < _SPREP_TYPE_THRESHOLD && type == USPREP_PROHIBITED){
 505                 /*
 506                  * A mapping is stored in the trie word
 507                  * and the only other possible type that a
 508                  * code point can have is USPREP_PROHIBITED
 509                  *
 510                  */
 511
 512                 /* turn on the 0th bit in the savedTrieWord */
 513                 savedTrieWord += 0x01;
 514
 515                 /* the downcast is safe since we only save 16 bit values */
 516                 trieWord = (uint16_t)savedTrieWord;
 517
 518                 /* make sure that the value of trieWord is less than the threshold */
 519                 if(trieWord < _SPREP_TYPE_THRESHOLD){
 520                     /* now set the value in the trie */
 521                     if(!utrie_set32(sprepTrie,start,trieWord)){
 522                         fprintf(stderr,"Could not set the value for code point.\n");
 523                         exit(U_ILLEGAL_ARGUMENT_ERROR);
 524                     }
 525                     /* value is set so just return */
 526                     return;
 527                 }else{
 528                     fprintf(stderr,"trieWord cannot contain value greater than threshold 0x%04X.\n",_SPREP_TYPE_THRESHOLD);
 529                     exit(U_ILLEGAL_CHAR_FOUND);
 530                 }
 531
 532             }else if(savedTrieWord != trieWord){
 533                 fprintf(stderr,"Value for codepoint \\U%08X already set!.\n", (int)start);
 534                 exit(U_ILLEGAL_ARGUMENT_ERROR);
 535             }
 536             /* if savedTrieWord == trieWord .. fall through and set the value */
 537         }
 538         if(!utrie_set32(sprepTrie,start,trieWord)){
 539             fprintf(stderr,"Could not set the value for code point \\U%08X.\n", (int)start);
 540             exit(U_ILLEGAL_ARGUMENT_ERROR);
 541         }
 542     }else{
 543         if(!utrie_setRange32(sprepTrie, start, end+1, trieWord, FALSE)){
 544             fprintf(stderr,"Value for certain codepoint already set.\n");
 545             exit(U_ILLEGAL_CHAR_FOUND);
 546         }
 547     }
 548
 549 }
 550
 551 /* folding value: just store the offset (16 bits) if there is any non-0 entry */
 552 static uint32_t U_CALLCONV
 553 getFoldedValue(UNewTrie *trie, UChar32 start, int32_t offset) {
 554     uint32_t value;
 555     UChar32 limit=0;
 556     UBool inBlockZero;
 557
 558     limit=start+0x400;
 559     while(start<limit) {
 560         value=utrie_get32(trie, start, &inBlockZero);
 561         if(inBlockZero) {
 562             start+=UTRIE_DATA_BLOCK_LENGTH;
 563         } else if(value!=0) {
 564             return (uint32_t)offset;
 565         } else {
 566             ++start;
 567         }
 568     }
 569     return 0;
 570
 571 }
 572
 573 #endif /* #if !UCONFIG_NO_IDNA */
 574
 575 extern void
 576 generateData(const char *dataDir, const char* bundleName) {
 577     static uint8_t sprepTrieBlock[100000];
 578
 579     UNewDataMemory *pData;
 580     UErrorCode errorCode=U_ZERO_ERROR;
 581     int32_t size, dataLength;
 582     char* fileName = (char*) uprv_malloc(uprv_strlen(bundleName) +100);
 583
 584 #if UCONFIG_NO_IDNA
 585
 586     size=0;
 587
 588 #else
 589
 590     int32_t sprepTrieSize;
 591
 592     /* sort and add mapping data */
 593     storeMappingData();
 594
 595     sprepTrieSize=utrie_serialize(sprepTrie, sprepTrieBlock, sizeof(sprepTrieBlock), getFoldedValue, TRUE, &errorCode);
 596     if(U_FAILURE(errorCode)) {
 597         fprintf(stderr, "error: utrie_serialize(sprep trie) failed, %s\n", u_errorName(errorCode));
 598         exit(errorCode);
 599     }
 600
 601     size = sprepTrieSize + mappingDataCapacity*U_SIZEOF_UCHAR + sizeof(indexes);
 602     if(beVerbose) {
 603         printf("size of sprep trie              %5u bytes\n", (int)sprepTrieSize);
 604         printf("size of " U_ICUDATA_NAME "_%s." DATA_TYPE " contents: %ld bytes\n", bundleName,(long)size);
 605         printf("size of mapping data array %5u bytes\n",(int)mappingDataCapacity * U_SIZEOF_UCHAR);
 606         printf("Number of code units in mappingData (currentIndex) are: %i \n", currentIndex);
 607         printf("Maximum length of the mapping string is : %i \n", (int)maxLength);
 608     }
 609
 610 #endif
 611
 612     fileName[0]=0;
 613     uprv_strcat(fileName,bundleName);
 614     /* write the data */
 615     pData=udata_create(dataDir, DATA_TYPE, fileName, &dataInfo,
 616                        haveCopyright ? U_COPYRIGHT_STRING : NULL, &errorCode);
 617     if(U_FAILURE(errorCode)) {
 618         fprintf(stderr, "gensprep: unable to create the output file, error %d\n", errorCode);
 619         exit(errorCode);
 620     }
 621
 622 #if !UCONFIG_NO_IDNA
 623
 624     indexes[_SPREP_INDEX_TRIE_SIZE]=sprepTrieSize;
 625     indexes[_SPREP_INDEX_MAPPING_DATA_SIZE]=mappingDataCapacity*U_SIZEOF_UCHAR;
 626
 627     udata_writeBlock(pData, indexes, sizeof(indexes));
 628     udata_writeBlock(pData, sprepTrieBlock, sprepTrieSize);
 629     udata_writeBlock(pData, mappingData, indexes[_SPREP_INDEX_MAPPING_DATA_SIZE]);
 630
 631
 632 #endif
 633
 634     /* finish up */
 635     dataLength=udata_finish(pData, &errorCode);
 636     if(U_FAILURE(errorCode)) {
 637         fprintf(stderr, "gensprep: error %d writing the output file\n", errorCode);
 638         exit(errorCode);
 639     }
 640
 641     if(dataLength!=size) {
 642         fprintf(stderr, "gensprep error: data length %ld != calculated size %ld\n",
 643             (long)dataLength, (long)size);
 644         exit(U_INTERNAL_PROGRAM_ERROR);
 645     }
 646
 647 #if !UCONFIG_NO_IDNA
 648     /* done with writing the data .. close the hashtable */
 649     if (hashTable != NULL) {
 650         uhash_close(hashTable);
 651     }
 652 #endif
 653 }
 654
 655 #if !UCONFIG_NO_IDNA
 656
 657 extern void
 658 cleanUpData(void) {
 659
 660     utrie_close(sprepTrie);
 661     uprv_free(sprepTrie);
 662 }
 663
 664 #endif /* #if !UCONFIG_NO_IDNA */
 665
 666 /*
 667  * Hey, Emacs, please set the following:
 668  *
 669  * Local Variables:
 670  * indent-tabs-mode: nil
 671  * End:
 672  *
 673  */