icuSources/samples/udata/writer.c

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 1999-2000, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *   file name:  writer.c
   9 *   encoding:   US-ASCII
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 *   created on: 2000sep5
  14 *   created by: Vladimir Weinstein
  15 */
  16
  17 /******************************************************************************
  18  * A program to write simple binary data readable by udata - example for
  19  * ICU workshop
  20  ******************************************************************************/
  21
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #ifdef WIN32
  26 #include <direct.h>
  27 #else
  28 #include <unistd.h>
  29 #endif
  30 #include "unicode/utypes.h"
  31 #include "unicode/udata.h"
  32
  33 /* this is private - available only through toolutil */
  34 #include "unewdata.h"
  35
  36 #define DATA_NAME "mypkg_example"
  37 #define DATA_TYPE "dat"
  38
  39 /* UDataInfo cf. udata.h */
  40 static const UDataInfo dataInfo={
  41     sizeof(UDataInfo),
  42     0,
  43
  44     U_IS_BIG_ENDIAN,
  45     U_CHARSET_FAMILY,
  46     sizeof(UChar),
  47     0,
  48
  49     0x4D, 0x79, 0x44, 0x74,     /* dataFormat="MyDt" */
  50     1, 0, 0, 0,                 /* formatVersion */
  51     1, 0, 0, 0                  /* dataVersion */
  52 };
  53
  54
  55 /* Excersise: add writing out other data types */
  56 /* see icu/source/tools/toolutil/unewdata.h    */
  57 /* for other possibilities                     */
  58
  59 extern int
  60 main(int argc, const char *argv[]) {
  61     UNewDataMemory *pData;
  62     UErrorCode errorCode=U_ZERO_ERROR;
  63     char stringValue[]={'E', 'X', 'A', 'M', 'P', 'L', 'E', '\0'};
  64     uint16_t intValue=2000;
  65
  66     long dataLength;
  67     uint32_t size;
  68 #ifdef WIN32
  69     char *currdir = _getcwd(NULL, 0);
  70 #else
  71     char *currdir = getcwd(NULL, 0);
  72 #endif
  73
  74     pData=udata_create(getcwd(NULL, 0), DATA_TYPE, DATA_NAME, &dataInfo,
  75                        U_COPYRIGHT_STRING, &errorCode);
  76
  77     if(currdir != NULL) {
  78         free(currdir);
  79     }
  80
  81
  82     if(U_FAILURE(errorCode)) {
  83         fprintf(stderr, "Error: unable to create data memory, error %d\n", errorCode);
  84         exit(errorCode);
  85     }
  86
  87     /* write the data to the file */
  88     /* a 16 bit value  and a String*/
  89     printf("Writing uint16_t value of %d\n", intValue);
  90     udata_write16(pData, intValue);
  91     printf("Writing string value of %s\n", stringValue);
  92     udata_writeString(pData, stringValue, sizeof(stringValue));
  93
  94     /* finish up */
  95     dataLength=udata_finish(pData, &errorCode);
  96     if(U_FAILURE(errorCode)) {
  97         fprintf(stderr, "Error: error %d writing the output file\n", errorCode);
  98         exit(errorCode);
  99     }
 100     size=sizeof(stringValue) + sizeof(intValue);
 101
 102
 103     if(dataLength!=(long)size) {
 104         fprintf(stderr, "Error: data length %ld != calculated size %lu\n", dataLength, size);
 105         exit(U_INTERNAL_PROGRAM_ERROR);
 106     }
 107     return 0;
 108 }
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