chromium/third_party/icu/source/i18n/unicode/numsys.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2010-2014, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*
*
* File NUMSYS.H
*
* Modification History:*
*   Date        Name        Description
*
********************************************************************************
*/

#ifndef NUMSYS
#define NUMSYS

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

/**
 * \file
 * \brief C++ API: NumberingSystem object
 */

#if !UCONFIG_NO_FORMATTING

#include "unicode/format.h"
#include "unicode/uobject.h"

U_NAMESPACE_BEGIN

// can't be #ifndef U_HIDE_INTERNAL_API; needed for char[] field size
/**
 * Size of a numbering system name.
 * @internal
 */
constexpr const size_t kInternalNumSysNameCapacity = …;

/**
 * Defines numbering systems. A numbering system describes the scheme by which 
 * numbers are to be presented to the end user.  In its simplest form, a numbering
 * system describes the set of digit characters that are to be used to display
 * numbers, such as Western digits, Thai digits, Arabic-Indic digits, etc., in a
 * positional numbering system with a specified radix (typically 10).
 * More complicated numbering systems are algorithmic in nature, and require use
 * of an RBNF formatter ( rule based number formatter ), in order to calculate
 * the characters to be displayed for a given number.  Examples of algorithmic
 * numbering systems include Roman numerals, Chinese numerals, and Hebrew numerals.
 * Formatting rules for many commonly used numbering systems are included in
 * the ICU package, based on the numbering system rules defined in CLDR.
 * Alternate numbering systems can be specified to a locale by using the
 * numbers locale keyword.
 */

class U_I18N_API NumberingSystem : public UObject { … };

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif /* U_SHOW_CPLUSPLUS_API */

#endif // _NUMSYS
//eof