icuSources/samples/date/uprint.c

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