icuSources/samples/legacy/oldcol.cpp

   1 /*
   2  *******************************************************************************
   3  *
   4  *   © 2016 and later: Unicode, Inc. and others.
   5  *   License & terms of use: http://www.unicode.org/copyright.html#License
   6  *
   7  *******************************************************************************
   8  *******************************************************************************
   9  *
  10  *   Copyright (C) 2001-2005, International Business Machines
  11  *   Corporation and others.  All Rights Reserved.
  12  *
  13  *******************************************************************************
  14  *   file name:  oldcol.cpp
  15  *   encoding:   UTF-8
  16  *   tab size:   8 (not used)
  17  *   indentation:4
  18  *
  19  *   created on: 2001jul24
  20  *   created by: Vladimir Weinstein
  21  */
  22
  23 /******************************************************************************
  24  * This is the module that uses old collation
  25  ******************************************************************************/
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <unicode/putil.h>
  30 #include <unicode/ucol.h>
  31
  32 // Very simple example code - sticks a sortkey in the buffer
  33 // Not much error checking
  34 int32_t getSortKey_legacy(const char *locale, const UChar *string, int32_t sLen, uint8_t *buffer, int32_t bLen) {
  35   UErrorCode status = U_ZERO_ERROR;
  36   UCollator *coll = ucol_open(locale, &status);
  37   if(U_FAILURE(status)) {
  38     return -1;
  39   }
  40   int32_t result = ucol_getSortKey(coll, string, sLen, buffer, bLen);
  41   ucol_close(coll);
  42   return result;
  43 }
  44
  45 // This one can be used for passing to qsort function
  46 // Not thread safe or anything
  47 static UCollator *compareCollator = NULL;
  48
  49 int compare_legacy(const void *string1, const void *string2) {
  50   if(compareCollator != NULL) {
  51     UCollationResult res = ucol_strcoll(compareCollator, (UChar *) string1, -1, (UChar *) string2, -1);
  52     if(res == UCOL_LESS) {
  53       return -1;
  54     } else if(res == UCOL_GREATER) {
  55       return 1;
  56     } else {
  57       return 0;
  58     }
  59   } else {
  60     return 0;
  61   }
  62 }
  63
  64 void initCollator_legacy(const char *locale) {
  65   UErrorCode status = U_ZERO_ERROR;
  66   compareCollator = ucol_open(locale, &status);
  67
  68   if(U_FAILURE(status))
  69   {
  70     fprintf(stderr, "initCollator_legacy(%s): error opening collator, %s!\n", locale, u_errorName(status));
  71     fprintf(stderr, "Note: ICU data directory is %s\n", u_getDataDirectory());
  72     fprintf(stderr, "Read the README!\n");
  73     exit(0);
  74   }
  75 }
  76
  77 void closeCollator_legacy(void) {
  78   if(compareCollator != NULL)
  79   {
  80     ucol_close(compareCollator);
  81   }
  82   else
  83   {
  84     fprintf(stderr, "closeCollator_legacy(): collator was already NULL!\n");
  85   }
  86   compareCollator = NULL;
  87 }
  88
  89
  90 extern "C" void test_legacy(UChar data[][5], uint32_t size, uint32_t maxlen, uint8_t keys[4][32]) {
  91   uint32_t i = 0;
  92   int32_t keySize = 0;
  93
  94   UVersionInfo uvi;
  95
  96   u_getVersion(uvi);
  97   fprintf(stderr, "Entered legacy, version: [%d.%d.%d.%d]\nMoving to sortkeys\n", uvi[0], uvi[1], uvi[2], uvi[3]);
  98
  99   for(i = 0; i<size; i++) {
 100     keySize = getSortKey_legacy("ja", data[i], -1, keys[i], 32);
 101     fprintf(stderr, "For i=%d, size of sortkey is %d\n", i, keySize);
 102   }
 103
 104   fprintf(stderr, "Done sortkeys, doing qsort test\n");
 105
 106   initCollator_legacy("ja");
 107   qsort(data, size, maxlen*sizeof(UChar), compare_legacy);
 108   closeCollator_legacy();
 109
 110   fprintf(stderr, "Done legacy!\n");
 111 }
 112
 113