icuSources/samples/cal/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 #include "unicode/ucnv.h"
  18 #include "unicode/ustring.h"
  19
  20 #define BUF_SIZE 128
  21
  22 /* Print a ustring to the specified FILE* in the default codepage */
  23 void
  24 uprint(const UChar *s,
  25        FILE *f,
  26        UErrorCode *status)
  27 {
  28   /* converter */
  29   UConverter *converter;
  30   char buf [BUF_SIZE];
  31   int32_t sourceLen;
  32   const UChar *mySource;
  33   const UChar *mySourceEnd;
  34   char *myTarget;
  35   int32_t arraySize;
  36
  37   if(s == 0) return;
  38
  39   /* set up the conversion parameters */
  40   sourceLen    = u_strlen(s);
  41   mySource     = s;
  42   mySourceEnd  = mySource + sourceLen;
  43   myTarget     = buf;
  44   arraySize    = BUF_SIZE;
  45
  46   /* open a default converter */
  47   converter = ucnv_open(0, status);
  48
  49   /* if we failed, clean up and exit */
  50   if(U_FAILURE(*status)) goto finish;
  51
  52   /* perform the conversion */
  53   do {
  54     /* reset the error code */
  55     *status = U_ZERO_ERROR;
  56
  57     /* perform the conversion */
  58     ucnv_fromUnicode(converter, &myTarget, myTarget + arraySize,
  59              &mySource, mySourceEnd, NULL,
  60              TRUE, status);
  61
  62     /* Write the converted data to the FILE* */
  63     fwrite(buf, sizeof(char), myTarget - buf, f);
  64
  65     /* update the conversion parameters*/
  66     myTarget     = buf;
  67     arraySize    = BUF_SIZE;
  68   }
  69   while(*status == U_BUFFER_OVERFLOW_ERROR);
  70
  71  finish:
  72
  73   /* close the converter */
  74   ucnv_close(converter);
  75 }