tor-browser

The Tor Browser
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ucnv_set.cpp (1986B)

      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==nullptr || U_FAILURE(*pErrorCode)) {
     38        return;
     39    }
     40    if(cnv==nullptr || setFillIn==nullptr || 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==nullptr) {
     47        *pErrorCode=U_UNSUPPORTED_ERROR;
     48        return;
     49    }
     50 
     51    {
     52        USetAdder sa={
     53            nullptr,
     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