1/*
2*******************************************************************************
3*
4*   Copyright (C) 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) 1999-2006, International Business Machines
11*   Corporation and others.  All Rights Reserved.
12*
13*******************************************************************************
14*   file name:  writer.c
15*   encoding:   US-ASCII
16*   tab size:   8 (not used)
17*   indentation:4
18*
19*   created on: 2000sep5
20*   created by: Vladimir Weinstein
21*/
22
23/******************************************************************************
24 * A program to write simple binary data readable by udata - example for
25 * ICU workshop
26 ******************************************************************************/
27
28
29#include <stdio.h>
30#include <stdlib.h>
31#ifdef WIN32
32#include <direct.h>
33#else
34#include <unistd.h>
35#endif
36#include "unicode/utypes.h"
37#include "unicode/udata.h"
38
39/* this is private - available only through toolutil */
40#include "unewdata.h"
41
42#define DATA_NAME "mypkg_example"
43#define DATA_TYPE "dat"
44
45/* UDataInfo cf. udata.h */
46static const UDataInfo dataInfo={
47    sizeof(UDataInfo),
48    0,
49
50    U_IS_BIG_ENDIAN,
51    U_CHARSET_FAMILY,
52    sizeof(UChar),
53    0,
54
55    0x4D, 0x79, 0x44, 0x74,     /* dataFormat="MyDt" */
56    1, 0, 0, 0,                 /* formatVersion */
57    1, 0, 0, 0                  /* dataVersion */
58};
59
60
61/* Excersise: add writing out other data types */
62/* see icu/source/tools/toolutil/unewdata.h    */
63/* for other possibilities                     */
64
65extern int
66main(int argc, const char *argv[]) {
67    UNewDataMemory *pData;
68    UErrorCode errorCode=U_ZERO_ERROR;
69    char stringValue[]={'E', 'X', 'A', 'M', 'P', 'L', 'E', '\0'};
70    uint16_t intValue=2000;
71
72    long dataLength;
73    uint32_t size;
74#ifdef WIN32
75    char *currdir = _getcwd(NULL, 0);
76#else
77    char *currdir = getcwd(NULL, 0);
78#endif
79
80    pData=udata_create(currdir, DATA_TYPE, DATA_NAME, &dataInfo,
81                       U_COPYRIGHT_STRING, &errorCode);
82
83    if(currdir != NULL) {
84        free(currdir);
85    }
86
87
88    if(U_FAILURE(errorCode)) {
89        fprintf(stderr, "Error: unable to create data memory, error %d\n", errorCode);
90        exit(errorCode);
91    }
92
93    /* write the data to the file */
94    /* a 16 bit value  and a String*/
95    printf("Writing uint16_t value of %d\n", intValue);
96    udata_write16(pData, intValue);
97    printf("Writing string value of %s\n", stringValue);
98    udata_writeString(pData, stringValue, sizeof(stringValue));
99
100    /* finish up */
101    dataLength=udata_finish(pData, &errorCode);
102    if(U_FAILURE(errorCode)) {
103        fprintf(stderr, "Error: error %d writing the output file\n", errorCode);
104        exit(errorCode);
105    }
106    size=sizeof(stringValue) + sizeof(intValue);
107
108
109    if(dataLength!=(long)size) {
110        fprintf(stderr, "Error: data length %ld != calculated size %lu\n", dataLength, size);
111        exit(U_INTERNAL_PROGRAM_ERROR);
112    }
113    return 0;
114}
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