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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*****************************************************************************************
* Copyright (C) 2015, International Business Machines
* Corporation and others. All Rights Reserved.
*****************************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/ulistformatter.h"
#include "unicode/listformatter.h"
#include "unicode/localpointer.h"
#include "cmemory.h"
#include "formattedval_impl.h"
U_NAMESPACE_USE
U_CAPI UListFormatter* U_EXPORT2
ulistfmt_open(const char* locale,
UErrorCode* status)
{
if (U_FAILURE(*status)) {
return nullptr;
}
LocalPointer<ListFormatter> listfmt(ListFormatter::createInstance(Locale(locale), *status));
if (U_FAILURE(*status)) {
return nullptr;
}
return (UListFormatter*)listfmt.orphan();
}
U_CAPI UListFormatter* U_EXPORT2
ulistfmt_openForType(const char* locale, UListFormatterType type,
UListFormatterWidth width, UErrorCode* status)
{
if (U_FAILURE(*status)) {
return nullptr;
}
LocalPointer<ListFormatter> listfmt(ListFormatter::createInstance(Locale(locale), type, width, *status));
if (U_FAILURE(*status)) {
return nullptr;
}
return (UListFormatter*)listfmt.orphan();
}
U_CAPI void U_EXPORT2
ulistfmt_close(UListFormatter *listfmt)
{
delete (ListFormatter*)listfmt;
}
// Magic number: FLST in ASCII
UPRV_FORMATTED_VALUE_CAPI_AUTO_IMPL(
FormattedList,
UFormattedList,
UFormattedListImpl,
UFormattedListApiHelper,
ulistfmt,
0x464C5354)
static UnicodeString* getUnicodeStrings(
const char16_t* const strings[],
const int32_t* stringLengths,
int32_t stringCount,
UnicodeString* length4StackBuffer,
LocalArray<UnicodeString>& maybeOwner,
UErrorCode& status) {
U_ASSERT(U_SUCCESS(status));
if (stringCount < 0 || (strings == nullptr && stringCount > 0)) {
status = U_ILLEGAL_ARGUMENT_ERROR;
return nullptr;
}
UnicodeString* ustrings = length4StackBuffer;
if (stringCount > 4) {
maybeOwner.adoptInsteadAndCheckErrorCode(new UnicodeString[stringCount], status);
if (U_FAILURE(status)) {
return nullptr;
}
ustrings = maybeOwner.getAlias();
}
if (stringLengths == nullptr) {
for (int32_t stringIndex = 0; stringIndex < stringCount; stringIndex++) {
ustrings[stringIndex].setTo(true, strings[stringIndex], -1);
}
} else {
for (int32_t stringIndex = 0; stringIndex < stringCount; stringIndex++) {
ustrings[stringIndex].setTo(stringLengths[stringIndex] < 0, strings[stringIndex], stringLengths[stringIndex]);
}
}
return ustrings;
}
U_CAPI int32_t U_EXPORT2
ulistfmt_format(const UListFormatter* listfmt,
const char16_t* const strings[],
const int32_t * stringLengths,
int32_t stringCount,
char16_t* result,
int32_t resultCapacity,
UErrorCode* status)
{
if (U_FAILURE(*status)) {
return -1;
}
if ((result == nullptr) ? resultCapacity != 0 : resultCapacity < 0) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return -1;
}
UnicodeString length4StackBuffer[4];
LocalArray<UnicodeString> maybeOwner;
UnicodeString* ustrings = getUnicodeStrings(
strings, stringLengths, stringCount, length4StackBuffer, maybeOwner, *status);
if (U_FAILURE(*status)) {
return -1;
}
UnicodeString res;
if (result != nullptr) {
// nullptr destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer (copied from udat_format)
res.setTo(result, 0, resultCapacity);
}
reinterpret_cast<const ListFormatter*>(listfmt)->format( ustrings, stringCount, res, *status );
return res.extract(result, resultCapacity, *status);
}
U_CAPI void U_EXPORT2
ulistfmt_formatStringsToResult(
const UListFormatter* listfmt,
const char16_t* const strings[],
const int32_t * stringLengths,
int32_t stringCount,
UFormattedList* uresult,
UErrorCode* status) {
auto* result = UFormattedListApiHelper::validate(uresult, *status);
if (U_FAILURE(*status)) {
return;
}
UnicodeString length4StackBuffer[4];
LocalArray<UnicodeString> maybeOwner;
UnicodeString* ustrings = getUnicodeStrings(
strings, stringLengths, stringCount, length4StackBuffer, maybeOwner, *status);
if (U_FAILURE(*status)) {
return;
}
result->fImpl = reinterpret_cast<const ListFormatter*>(listfmt)
->formatStringsToValue(ustrings, stringCount, *status);
}
#endif /* #if !UCONFIG_NO_FORMATTING */
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