icuSources/common/ucnv_set.c

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 2003-2005, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *   file name:  ucnv_set.c
   9 *   encoding:   US-ASCII
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 *   created on: 2004sep07
  14 *   created by: Markus W. Scherer
  15 *
  16 *   Conversion API functions using USet (ucnv_getUnicodeSet())
  17 *   moved here from ucnv.c for removing the dependency of other ucnv_
  18 *   implementation functions on the USet implementation.
  19 */
  20
  21 #include "unicode/utypes.h"
  22 #include "unicode/uset.h"
  23 #include "unicode/ucnv.h"
  24 #include "ucnv_bld.h"
  25 #include "uset_imp.h"
  26
  27 #if !UCONFIG_NO_CONVERSION
  28
  29 U_CAPI void U_EXPORT2
  30 ucnv_getUnicodeSet(const UConverter *cnv,
  31                    USet *setFillIn,
  32                    UConverterUnicodeSet whichSet,
  33                    UErrorCode *pErrorCode) {
  34     /* argument checking */
  35     if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
  36         return;
  37     }
  38     if(cnv==NULL || setFillIn==NULL || whichSet<UCNV_ROUNDTRIP_SET || UCNV_SET_COUNT<=whichSet) {
  39         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
  40         return;
  41     }
  42
  43     /* does this converter support this function? */
  44     if(cnv->sharedData->impl->getUnicodeSet==NULL) {
  45         *pErrorCode=U_UNSUPPORTED_ERROR;
  46         return;
  47     }
  48
  49     {
  50         USetAdder sa={
  51             NULL,
  52             uset_add,
  53             uset_addRange,
  54             uset_addString,
  55             uset_remove
  56         };
  57         sa.set=setFillIn;
  58
  59         /* empty the set */
  60         uset_clear(setFillIn);
  61
  62         /* call the converter to add the code points it supports */
  63         cnv->sharedData->impl->getUnicodeSet(cnv, &sa, whichSet, pErrorCode);
  64     }
  65 }
  66
  67 #endif