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// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*
* Copyright (C) 2012-2016, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: listformatter.h
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 20120426
* created by: Umesh P. Nair
*/
#ifndef __LISTFORMATTER_H__
#define __LISTFORMATTER_H__
#include "unicode/utypes.h"
#include "unicode/unistr.h"
#include "unicode/locid.h"
U_NAMESPACE_BEGIN
/** @internal */
class Hashtable;
/** @internal */
struct ListFormatInternal;
/* The following can't be #ifndef U_HIDE_INTERNAL_API, needed for other .h file declarations */
/** @internal */
struct ListFormatData : public UMemory {
UnicodeString twoPattern;
UnicodeString startPattern;
UnicodeString middlePattern;
UnicodeString endPattern;
ListFormatData(const UnicodeString& two, const UnicodeString& start, const UnicodeString& middle, const UnicodeString& end) :
twoPattern(two), startPattern(start), middlePattern(middle), endPattern(end) {}
};
/**
* \file
* \brief C++ API: API for formatting a list.
*/
/**
* An immutable class for formatting a list, using data from CLDR (or supplied
* separately).
*
* Example: Input data ["Alice", "Bob", "Charlie", "Delta"] will be formatted
* as "Alice, Bob, Charlie and Delta" in English.
*
* The ListFormatter class is not intended for public subclassing.
* @stable ICU 50
*/
class U_COMMON_API ListFormatter : public UObject{
public:
/**
* Copy constructor.
* @stable ICU 52
*/
ListFormatter(const ListFormatter&);
/**
* Assignment operator.
* @stable ICU 52
*/
ListFormatter& operator=(const ListFormatter& other);
/**
* Creates a ListFormatter appropriate for the default locale.
*
* @param errorCode ICU error code, set if no data available for default locale.
* @return Pointer to a ListFormatter object for the default locale,
* created from internal data derived from CLDR data.
* @stable ICU 50
*/
static ListFormatter* createInstance(UErrorCode& errorCode);
/**
* Creates a ListFormatter appropriate for a locale.
*
* @param locale The locale.
* @param errorCode ICU error code, set if no data available for the given locale.
* @return A ListFormatter object created from internal data derived from
* CLDR data.
* @stable ICU 50
*/
static ListFormatter* createInstance(const Locale& locale, UErrorCode& errorCode);
#ifndef U_HIDE_INTERNAL_API
/**
* Creates a ListFormatter appropriate for a locale and style.
*
* @param locale The locale.
* @param style the style, either "standard", "duration", or "duration-short"
* @param errorCode ICU error code, set if no data available for the given locale.
* @return A ListFormatter object created from internal data derived from
* CLDR data.
* @internal
*/
static ListFormatter* createInstance(const Locale& locale, const char* style, UErrorCode& errorCode);
#endif /* U_HIDE_INTERNAL_API */
/**
* Destructor.
*
* @stable ICU 50
*/
virtual ~ListFormatter();
/**
* Formats a list of strings.
*
* @param items An array of strings to be combined and formatted.
* @param n_items Length of the array items.
* @param appendTo The string to which the result should be appended to.
* @param errorCode ICU error code, set if there is an error.
* @return Formatted string combining the elements of items, appended to appendTo.
* @stable ICU 50
*/
UnicodeString& format(const UnicodeString items[], int32_t n_items,
UnicodeString& appendTo, UErrorCode& errorCode) const;
#ifndef U_HIDE_INTERNAL_API
/**
@internal for MeasureFormat
*/
UnicodeString& format(
const UnicodeString items[],
int32_t n_items,
UnicodeString& appendTo,
int32_t index,
int32_t &offset,
UErrorCode& errorCode) const;
/**
* @internal constructor made public for testing.
*/
ListFormatter(const ListFormatData &data, UErrorCode &errorCode);
/**
* @internal constructor made public for testing.
*/
ListFormatter(const ListFormatInternal* listFormatterInternal);
#endif /* U_HIDE_INTERNAL_API */
private:
static void initializeHash(UErrorCode& errorCode);
static const ListFormatInternal* getListFormatInternal(const Locale& locale, const char *style, UErrorCode& errorCode);
ListFormatter();
ListFormatInternal* owned;
const ListFormatInternal* data;
};
U_NAMESPACE_END
#endif
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