icuSources/common/ucnv_set.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 *******************************************************************************
   5 *
   6 *   Copyright (C) 2003-2007, International Business Machines
   7 *   Corporation and others.  All Rights Reserved.
   8 *
   9 *******************************************************************************
  10 *   file name:  ucnv_set.c
  11 *   encoding:   UTF-8
  12 *   tab size:   8 (not used)
  13 *   indentation:4
  14 *
  15 *   created on: 2004sep07
  16 *   created by: Markus W. Scherer
  17 *
  18 *   Conversion API functions using USet (ucnv_getUnicodeSet())
  19 *   moved here from ucnv.c for removing the dependency of other ucnv_
  20 *   implementation functions on the USet implementation.
  21 */
  22
  23 #include "unicode/utypes.h"
  24 #include "unicode/uset.h"
  25 #include "unicode/ucnv.h"
  26 #include "ucnv_bld.h"
  27 #include "uset_imp.h"
  28
  29 #if !UCONFIG_NO_CONVERSION
  30
  31 U_CAPI void U_EXPORT2
  32 ucnv_getUnicodeSet(const UConverter *cnv,
  33                    USet *setFillIn,
  34                    UConverterUnicodeSet whichSet,
  35                    UErrorCode *pErrorCode) {
  36     /* argument checking */
  37     if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
  38         return;
  39     }
  40     if(cnv==NULL || setFillIn==NULL || whichSet<UCNV_ROUNDTRIP_SET || UCNV_SET_COUNT<=whichSet) {
  41         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
  42         return;
  43     }
  44
  45     /* does this converter support this function? */
  46     if(cnv->sharedData->impl->getUnicodeSet==NULL) {
  47         *pErrorCode=U_UNSUPPORTED_ERROR;
  48         return;
  49     }
  50
  51     {
  52         USetAdder sa={
  53             NULL,
  54             uset_add,
  55             uset_addRange,
  56             uset_addString,
  57             uset_remove,
  58             uset_removeRange
  59         };
  60         sa.set=setFillIn;
  61
  62         /* empty the set */
  63         uset_clear(setFillIn);
  64
  65         /* call the converter to add the code points it supports */
  66         cnv->sharedData->impl->getUnicodeSet(cnv, &sa, whichSet, pErrorCode);
  67     }
  68 }
  69
  70 #endif