1// Copyright (C) 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
19U_NAMESPACE_BEGIN
20
21CStr::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 *>(NULL), 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
47CStr::~CStr() {
48}
49
50const char * CStr::operator ()() const {
51    return s.data();
52}
53
54U_NAMESPACE_END
55