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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) 2015-2016, International Business Machines
* Corporation and others. All Rights Reserved.
*****************************************************************************************
*/
#ifndef ULISTFORMATTER_H
#define ULISTFORMATTER_H
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/localpointer.h"
/**
* \file
* \brief C API: Format a list in a locale-appropriate way.
*
* A UListFormatter is used to format a list of items in a locale-appropriate way,
* using data from CLDR.
* Example: Input data ["Alice", "Bob", "Charlie", "Delta"] will be formatted
* as "Alice, Bob, Charlie, and Delta" in English.
*/
/**
* Opaque UListFormatter object for use in C
* @stable ICU 55
*/
struct UListFormatter;
typedef struct UListFormatter UListFormatter; /**< C typedef for struct UListFormatter. @stable ICU 55 */
/**
* Open a new UListFormatter object using the rules for a given locale.
* @param locale
* The locale whose rules should be used; may be NULL for
* default locale.
* @param status
* A pointer to a standard ICU UErrorCode (input/output parameter).
* Its input value must pass the U_SUCCESS() test, or else the
* function returns immediately. The caller should check its output
* value with U_FAILURE(), or use with function chaining (see User
* Guide for details).
* @return
* A pointer to a UListFormatter object for the specified locale,
* or NULL if an error occurred.
* @stable ICU 55
*/
U_STABLE UListFormatter* U_EXPORT2
ulistfmt_open(const char* locale,
UErrorCode* status);
/**
* Close a UListFormatter object. Once closed it may no longer be used.
* @param listfmt
* The UListFormatter object to close.
* @stable ICU 55
*/
U_STABLE void U_EXPORT2
ulistfmt_close(UListFormatter *listfmt);
#if U_SHOW_CPLUSPLUS_API
U_NAMESPACE_BEGIN
/**
* \class LocalUListFormatterPointer
* "Smart pointer" class, closes a UListFormatter via ulistfmt_close().
* For most methods see the LocalPointerBase base class.
*
* @see LocalPointerBase
* @see LocalPointer
* @stable ICU 55
*/
U_DEFINE_LOCAL_OPEN_POINTER(LocalUListFormatterPointer, UListFormatter, ulistfmt_close);
U_NAMESPACE_END
#endif
/**
* Formats a list of strings using the conventions established for the
* UListFormatter object.
* @param listfmt
* The UListFormatter object specifying the list conventions.
* @param strings
* An array of pointers to UChar strings; the array length is
* specified by stringCount. Must be non-NULL if stringCount > 0.
* @param stringLengths
* An array of string lengths corresponding to the strings[]
* parameter; any individual length value may be negative to indicate
* that the corresponding strings[] entry is 0-terminated, or
* stringLengths itself may be NULL if all of the strings are
* 0-terminated. If non-NULL, the stringLengths array must have
* stringCount entries.
* @param stringCount
* the number of entries in strings[], and the number of entries
* in the stringLengths array if it is not NULL. Must be >= 0.
* @param result
* A pointer to a buffer to receive the formatted list.
* @param resultCapacity
* The maximum size of result.
* @param status
* A pointer to a standard ICU UErrorCode (input/output parameter).
* Its input value must pass the U_SUCCESS() test, or else the
* function returns immediately. The caller should check its output
* value with U_FAILURE(), or use with function chaining (see User
* Guide for details).
* @return
* The total buffer size needed; if greater than resultLength, the
* output was truncated. May be <=0 if unable to determine the
* total buffer size needed (e.g. for illegal arguments).
* @stable ICU 55
*/
U_DRAFT int32_t U_EXPORT2
ulistfmt_format(const UListFormatter* listfmt,
const UChar* const strings[],
const int32_t * stringLengths,
int32_t stringCount,
UChar* result,
int32_t resultCapacity,
UErrorCode* status);
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif
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