cstr.cpp (1723B)
1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * Copyright (C) 2015-2016, International Business Machines 6 * Corporation and others. All Rights Reserved. 7 ******************************************************************************* 8 * file name: charstr.cpp 9 */ 10 #include "unicode/utypes.h" 11 #include "unicode/putil.h" 12 #include "unicode/unistr.h" 13 14 #include "cstr.h" 15 16 #include "charstr.h" 17 #include "uinvchar.h" 18 19 U_NAMESPACE_BEGIN 20 21 CStr::CStr(const UnicodeString &in) { 22 UErrorCode status = U_ZERO_ERROR; 23 #if !UCONFIG_NO_CONVERSION || U_CHARSET_IS_UTF8 24 int32_t length = in.extract(0, in.length(), static_cast<char *>(nullptr), static_cast<uint32_t>(0)); 25 int32_t resultCapacity = 0; 26 char *buf = s.getAppendBuffer(length, length, resultCapacity, status); 27 if (U_SUCCESS(status)) { 28 in.extract(0, in.length(), buf, resultCapacity); 29 s.append(buf, length, status); 30 } 31 #else 32 // No conversion available. Convert any invariant characters; substitute '?' for the rest. 33 // Note: can't just call u_UCharsToChars() or CharString.appendInvariantChars() on the 34 // whole string because they require that the entire input be invariant. 35 char buf[2]; 36 for (int i=0; i<in.length(); i = in.moveIndex32(i, 1)) { 37 if (uprv_isInvariantUString(in.getBuffer()+i, 1)) { 38 u_UCharsToChars(in.getBuffer()+i, buf, 1); 39 } else { 40 buf[0] = '?'; 41 } 42 s.append(buf, 1, status); 43 } 44 #endif 45 } 46 47 CStr::~CStr() { 48 } 49 50 const char * CStr::operator ()() const { 51 return s.data(); 52 } 53 54 U_NAMESPACE_END