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, International Business Machines
6* Corporation and others. All Rights Reserved.
7*****************************************************************************************
8*/
9
10#include "unicode/utypes.h"
11
12#if !UCONFIG_NO_FORMATTING
13
14#include "unicode/ulistformatter.h"
15#include "unicode/listformatter.h"
16#include "unicode/localpointer.h"
17#include "cmemory.h"
18
19U_NAMESPACE_USE
20
21U_CAPI UListFormatter* U_EXPORT2
22ulistfmt_open(const char*  locale,
23              UErrorCode*  status)
24{
25    if (U_FAILURE(*status)) {
26        return NULL;
27    }
28    LocalPointer<ListFormatter> listfmt(ListFormatter::createInstance(Locale(locale), *status));
29    if (U_FAILURE(*status)) {
30        return NULL;
31    }
32    return (UListFormatter*)listfmt.orphan();
33}
34
35
36U_CAPI void U_EXPORT2
37ulistfmt_close(UListFormatter *listfmt)
38{
39    delete (ListFormatter*)listfmt;
40}
41
42
43U_CAPI int32_t U_EXPORT2
44ulistfmt_format(const UListFormatter* listfmt,
45                const UChar* const strings[],
46                const int32_t *    stringLengths,
47                int32_t            stringCount,
48                UChar*             result,
49                int32_t            resultCapacity,
50                UErrorCode*        status)
51{
52    if (U_FAILURE(*status)) {
53        return -1;
54    }
55    if (stringCount < 0 || (strings == NULL && stringCount > 0) || ((result == NULL)? resultCapacity != 0 : resultCapacity < 0)) {
56        *status = U_ILLEGAL_ARGUMENT_ERROR;
57        return -1;
58    }
59    UnicodeString ustringsStackBuf[4];
60    UnicodeString* ustrings = ustringsStackBuf;
61    if (stringCount > UPRV_LENGTHOF(ustringsStackBuf)) {
62        ustrings = new UnicodeString[stringCount];
63        if (ustrings == NULL) {
64            *status = U_MEMORY_ALLOCATION_ERROR;
65            return -1;
66        }
67    }
68    if (stringLengths == NULL) {
69        for (int32_t stringIndex = 0; stringIndex < stringCount; stringIndex++) {
70            ustrings[stringIndex].setTo(TRUE, strings[stringIndex], -1);
71        }
72    } else {
73        for (int32_t stringIndex = 0; stringIndex < stringCount; stringIndex++) {
74            ustrings[stringIndex].setTo(stringLengths[stringIndex] < 0, strings[stringIndex], stringLengths[stringIndex]);
75        }
76    }
77    UnicodeString res;
78    if (result != NULL) {
79        // NULL destination for pure preflighting: empty dummy string
80        // otherwise, alias the destination buffer (copied from udat_format)
81        res.setTo(result, 0, resultCapacity);
82    }
83    ((const ListFormatter*)listfmt)->format( ustrings, stringCount, res, *status );
84    if (ustrings != ustringsStackBuf) {
85        delete[] ustrings;
86    }
87    return res.extract(result, resultCapacity, *status);
88}
89
90
91#endif /* #if !UCONFIG_NO_FORMATTING */
92