icuSources/samples/date/uprint.c

   1 /*
   2 ***********************************************************************
   3 * © 2016 and later: Unicode, Inc. and others.
   4 * License & terms of use: http://www.unicode.org/copyright.html#License
   5 ***********************************************************************
   6 **********************************************************************
   7 * Copyright (C) 1998-2001, International Business Machines Corporation
   8 * and others.  All Rights Reserved.
   9 **********************************************************************
  10 *
  11 * File date.c
  12 *
  13 * Modification History:
  14 *
  15 *       Date            Name            Description
  16 *       06/14/99        stephen         Creation.
  17 *******************************************************************************
  18 */
  19
  20 #include "uprint.h"
  21
  22 #include "unicode/ucnv.h"
  23 #include "unicode/ustring.h"
  24
  25 #define BUF_SIZE 128
  26
  27 /* Print a ustring to the specified FILE* in the default codepage */
  28 void
  29 uprint(const UChar *s,
  30            FILE *f,
  31            UErrorCode *status)
  32 {
  33   /* converter */
  34   UConverter *converter;
  35   char buf [BUF_SIZE];
  36   int32_t sourceLen;
  37   const UChar *mySource;
  38   const UChar *mySourceEnd;
  39   char *myTarget;
  40   int32_t arraySize;
  41
  42   if(s == 0) return;
  43
  44   /* set up the conversion parameters */
  45   sourceLen    = u_strlen(s);
  46   mySource         = s;
  47   mySourceEnd  = mySource + sourceLen;
  48   myTarget         = buf;
  49   arraySize    = BUF_SIZE;
  50
  51   /* open a default converter */
  52   converter = ucnv_open(0, status);
  53
  54   /* if we failed, clean up and exit */
  55   if(U_FAILURE(*status)) goto finish;
  56
  57   /* perform the conversion */
  58   do {
  59         /* reset the error code */
  60         *status = U_ZERO_ERROR;
  61
  62         /* perform the conversion */
  63         ucnv_fromUnicode(converter, &myTarget,  myTarget + arraySize,
  64                          &mySource, mySourceEnd, NULL,
  65                          TRUE, status);
  66
  67         /* Write the converted data to the FILE* */
  68         fwrite(buf, sizeof(char), myTarget - buf, f);
  69
  70         /* update the conversion parameters*/
  71         myTarget         = buf;
  72         arraySize        = BUF_SIZE;
  73   }
  74   while(*status == U_BUFFER_OVERFLOW_ERROR);
  75
  76  finish:
  77
  78   /* close the converter */
  79   ucnv_close(converter);
  80 }