DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (d38398e5144e)

VCS Links

PluralFormat

PluralSelector

PluralSelectorAdapter

Macros

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617
// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2007-2014, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*

* File PLURFMT.H
********************************************************************************
*/

#ifndef PLURFMT
#define PLURFMT

#include "unicode/utypes.h"

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

#if !UCONFIG_NO_FORMATTING

#include "unicode/messagepattern.h"
#include "unicode/numfmt.h"
#include "unicode/plurrule.h"

U_NAMESPACE_BEGIN

class Hashtable;
class NFRule;

/**
 * <p>
 * <code>PluralFormat</code> supports the creation of internationalized
 * messages with plural inflection. It is based on <i>plural
 * selection</i>, i.e. the caller specifies messages for each
 * plural case that can appear in the user's language and the
 * <code>PluralFormat</code> selects the appropriate message based on
 * the number.
 * </p>
 * <h4>The Problem of Plural Forms in Internationalized Messages</h4>
 * <p>
 * Different languages have different ways to inflect
 * plurals. Creating internationalized messages that include plural
 * forms is only feasible when the framework is able to handle plural
 * forms of <i>all</i> languages correctly. <code>ChoiceFormat</code>
 * doesn't handle this well, because it attaches a number interval to
 * each message and selects the message whose interval contains a
 * given number. This can only handle a finite number of
 * intervals. But in some languages, like Polish, one plural case
 * applies to infinitely many intervals (e.g., the plural case applies to
 * numbers ending with 2, 3, or 4 except those ending with 12, 13, or
 * 14). Thus <code>ChoiceFormat</code> is not adequate.
 * </p><p>
 * <code>PluralFormat</code> deals with this by breaking the problem
 * into two parts:
 * <ul>
 * <li>It uses <code>PluralRules</code> that can define more complex
 *     conditions for a plural case than just a single interval. These plural
 *     rules define both what plural cases exist in a language, and to
 *     which numbers these cases apply.
 * <li>It provides predefined plural rules for many languages. Thus, the programmer
 *     need not worry about the plural cases of a language and
 *     does not have to define the plural cases; they can simply
 *     use the predefined keywords. The whole plural formatting of messages can
 *     be done using localized patterns from resource bundles. For predefined plural
 *     rules, see the CLDR <i>Language Plural Rules</i> page at
 *    http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html
 * </ul>
 * </p>
 * <h4>Usage of <code>PluralFormat</code></h4>
 * <p>Note: Typically, plural formatting is done via <code>MessageFormat</code>
 * with a <code>plural</code> argument type,
 * rather than using a stand-alone <code>PluralFormat</code>.
 * </p><p>
 * This discussion assumes that you use <code>PluralFormat</code> with
 * a predefined set of plural rules. You can create one using one of
 * the constructors that takes a <code>locale</code> object. To
 * specify the message pattern, you can either pass it to the
 * constructor or set it explicitly using the
 * <code>applyPattern()</code> method. The <code>format()</code>
 * method takes a number object and selects the message of the
 * matching plural case. This message will be returned.
 * </p>
 * <h5>Patterns and Their Interpretation</h5>
 * <p>
 * The pattern text defines the message output for each plural case of the
 * specified locale. Syntax:
 * <pre>
 * pluralStyle = [offsetValue] (selector '{' message '}')+
 * offsetValue = "offset:" number
 * selector = explicitValue | keyword
 * explicitValue = '=' number  // adjacent, no white space in between
 * keyword = [^[[:Pattern_Syntax:][:Pattern_White_Space:]]]+
 * message: see {@link MessageFormat}
 * </pre>
 * Pattern_White_Space between syntax elements is ignored, except
 * between the {curly braces} and their sub-message,
 * and between the '=' and the number of an explicitValue.
 *
 * </p><p>
 * There are 6 predefined casekeyword in CLDR/ICU - 'zero', 'one', 'two', 'few', 'many' and
 * 'other'. You always have to define a message text for the default plural case
 * <code>other</code> which is contained in every rule set.
 * If you do not specify a message text for a particular plural case, the
 * message text of the plural case <code>other</code> gets assigned to this
 * plural case.
 * </p><p>
 * When formatting, the input number is first matched against the explicitValue clauses.
 * If there is no exact-number match, then a keyword is selected by calling
 * the <code>PluralRules</code> with the input number <em>minus the offset</em>.
 * (The offset defaults to 0 if it is omitted from the pattern string.)
 * If there is no clause with that keyword, then the "other" clauses is returned.
 * </p><p>
 * An unquoted pound sign (<code>#</code>) in the selected sub-message
 * itself (i.e., outside of arguments nested in the sub-message)
 * is replaced by the input number minus the offset.
 * The number-minus-offset value is formatted using a
 * <code>NumberFormat</code> for the <code>PluralFormat</code>'s locale. If you
 * need special number formatting, you have to use a <code>MessageFormat</code>
 * and explicitly specify a <code>NumberFormat</code> argument.
 * <strong>Note:</strong> That argument is formatting without subtracting the offset!
 * If you need a custom format and have a non-zero offset, then you need to pass the
 * number-minus-offset value as a separate parameter.
 * </p>
 * For a usage example, see the {@link MessageFormat} class documentation.
 *
 * <h4>Defining Custom Plural Rules</h4>
 * <p>If you need to use <code>PluralFormat</code> with custom rules, you can
 * create a <code>PluralRules</code> object and pass it to
 * <code>PluralFormat</code>'s constructor. If you also specify a locale in this
 * constructor, this locale will be used to format the number in the message
 * texts.
 * </p><p>
 * For more information about <code>PluralRules</code>, see
 * {@link PluralRules}.
 * </p>
 *
 * ported from Java
 * @stable ICU 4.0
 */

class U_I18N_API PluralFormat : public Format {
public:

    /**
     * Creates a new cardinal-number <code>PluralFormat</code> for the default locale.
     * This locale will be used to get the set of plural rules and for standard
     * number formatting.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(UErrorCode& status);

    /**
     * Creates a new cardinal-number <code>PluralFormat</code> for a given locale.
     * @param locale the <code>PluralFormat</code> will be configured with
     *               rules for this locale. This locale will also be used for
     *               standard number formatting.
     * @param status output param set to success/failure code on exit, which
     *               must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const Locale& locale, UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for a given set of rules.
     * The standard number formatting will be done using the default locale.
     * @param rules   defines the behavior of the <code>PluralFormat</code>
     *                object.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const PluralRules& rules, UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for a given set of rules.
     * The standard number formatting will be done using the given locale.
     * @param locale  the default number formatting will be done using this
     *                locale.
     * @param rules   defines the behavior of the <code>PluralFormat</code>
     *                object.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 4.0
	 * <p>
	 * <h4>Sample code</h4>
	 * \snippet samples/plurfmtsample/plurfmtsample.cpp PluralFormatExample1
	 * \snippet samples/plurfmtsample/plurfmtsample.cpp PluralFormatExample
	 * <p>
     */
    PluralFormat(const Locale& locale, const PluralRules& rules, UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for the plural type.
     * The standard number formatting will be done using the given locale.
     * @param locale  the default number formatting will be done using this
     *                locale.
     * @param type    The plural type (e.g., cardinal or ordinal).
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 50
     */
    PluralFormat(const Locale& locale, UPluralType type, UErrorCode& status);

    /**
     * Creates a new cardinal-number <code>PluralFormat</code> for a given pattern string.
     * The default locale will be used to get the set of plural rules and for
     * standard number formatting.
     * @param  pattern the pattern for this <code>PluralFormat</code>.
     *                 errors are returned to status if the pattern is invalid.
     * @param status   output param set to success/failure code on exit, which
     *                 must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const UnicodeString& pattern, UErrorCode& status);

    /**
     * Creates a new cardinal-number <code>PluralFormat</code> for a given pattern string and
     * locale.
     * The locale will be used to get the set of plural rules and for
     * standard number formatting.
     * @param locale   the <code>PluralFormat</code> will be configured with
     *                 rules for this locale. This locale will also be used for
     *                 standard number formatting.
     * @param pattern  the pattern for this <code>PluralFormat</code>.
     *                 errors are returned to status if the pattern is invalid.
     * @param status   output param set to success/failure code on exit, which
     *                 must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const Locale& locale, const UnicodeString& pattern, UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for a given set of rules, a
     * pattern and a locale.
     * @param rules    defines the behavior of the <code>PluralFormat</code>
     *                 object.
     * @param pattern  the pattern for this <code>PluralFormat</code>.
     *                 errors are returned to status if the pattern is invalid.
     * @param status   output param set to success/failure code on exit, which
     *                 must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const PluralRules& rules,
                 const UnicodeString& pattern,
                 UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for a given set of rules, a
     * pattern and a locale.
     * @param locale  the <code>PluralFormat</code> will be configured with
     *                rules for this locale. This locale will also be used for
     *                standard number formatting.
     * @param rules   defines the behavior of the <code>PluralFormat</code>
     *                object.
     * @param pattern the pattern for this <code>PluralFormat</code>.
     *                errors are returned to status if the pattern is invalid.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    PluralFormat(const Locale& locale,
                 const PluralRules& rules,
                 const UnicodeString& pattern,
                 UErrorCode& status);

    /**
     * Creates a new <code>PluralFormat</code> for a plural type, a
     * pattern and a locale.
     * @param locale  the <code>PluralFormat</code> will be configured with
     *                rules for this locale. This locale will also be used for
     *                standard number formatting.
     * @param type    The plural type (e.g., cardinal or ordinal).
     * @param pattern the pattern for this <code>PluralFormat</code>.
     *                errors are returned to status if the pattern is invalid.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 50
     */
    PluralFormat(const Locale& locale,
                 UPluralType type,
                 const UnicodeString& pattern,
                 UErrorCode& status);

    /**
      * copy constructor.
      * @stable ICU 4.0
      */
    PluralFormat(const PluralFormat& other);

    /**
     * Destructor.
     * @stable ICU 4.0
     */
    virtual ~PluralFormat();

    /**
     * Sets the pattern used by this plural format.
     * The method parses the pattern and creates a map of format strings
     * for the plural rules.
     * Patterns and their interpretation are specified in the class description.
     *
     * @param pattern the pattern for this plural format
     *                errors are returned to status if the pattern is invalid.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @stable ICU 4.0
     */
    void applyPattern(const UnicodeString& pattern, UErrorCode& status);


    using Format::format;

    /**
     * Formats a plural message for a given number.
     *
     * @param number  a number for which the plural message should be formatted
     *                for. If no pattern has been applied to this
     *                <code>PluralFormat</code> object yet, the formatted number
     *                will be returned.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @return        the string containing the formatted plural message.
     * @stable ICU 4.0
     */
    UnicodeString format(int32_t number, UErrorCode& status) const;

    /**
     * Formats a plural message for a given number.
     *
     * @param number  a number for which the plural message should be formatted
     *                for. If no pattern has been applied to this
     *                PluralFormat object yet, the formatted number
     *                will be returned.
     * @param status  output param set to success or failure code on exit, which
     *                must not indicate a failure before the function call.
     * @return        the string containing the formatted plural message.
     * @stable ICU 4.0
     */
    UnicodeString format(double number, UErrorCode& status) const;

    /**
     * Formats a plural message for a given number.
     *
     * @param number   a number for which the plural message should be formatted
     *                 for. If no pattern has been applied to this
     *                 <code>PluralFormat</code> object yet, the formatted number
     *                 will be returned.
     * @param appendTo output parameter to receive result.
     *                 result is appended to existing contents.
     * @param pos      On input: an alignment field, if desired.
     *                 On output: the offsets of the alignment field.
     * @param status   output param set to success/failure code on exit, which
     *                 must not indicate a failure before the function call.
     * @return         the string containing the formatted plural message.
     * @stable ICU 4.0
     */
    UnicodeString& format(int32_t number,
                          UnicodeString& appendTo,
                          FieldPosition& pos,
                          UErrorCode& status) const;

    /**
     * Formats a plural message for a given number.
     *
     * @param number   a number for which the plural message should be formatted
     *                 for. If no pattern has been applied to this
     *                 PluralFormat object yet, the formatted number
     *                 will be returned.
     * @param appendTo output parameter to receive result.
     *                 result is appended to existing contents.
     * @param pos      On input: an alignment field, if desired.
     *                 On output: the offsets of the alignment field.
     * @param status   output param set to success/failure code on exit, which
     *                 must not indicate a failure before the function call.
     * @return         the string containing the formatted plural message.
     * @stable ICU 4.0
     */
    UnicodeString& format(double number,
                          UnicodeString& appendTo,
                          FieldPosition& pos,
                          UErrorCode& status) const;

#ifndef U_HIDE_DEPRECATED_API 
    /**
     * Sets the locale used by this <code>PluraFormat</code> object.
     * Note: Calling this method resets this <code>PluraFormat</code> object,
     *     i.e., a pattern that was applied previously will be removed,
     *     and the NumberFormat is set to the default number format for
     *     the locale.  The resulting format behaves the same as one
     *     constructed from {@link #PluralFormat(const Locale& locale, UPluralType type, UErrorCode& status)}
     *     with UPLURAL_TYPE_CARDINAL.
     * @param locale  the <code>locale</code> to use to configure the formatter.
     * @param status  output param set to success/failure code on exit, which
     *                must not indicate a failure before the function call.
     * @deprecated ICU 50 This method clears the pattern and might create
     *             a different kind of PluralRules instance;
     *             use one of the constructors to create a new instance instead.
     */
    void setLocale(const Locale& locale, UErrorCode& status);
#endif  /* U_HIDE_DEPRECATED_API */

    /**
      * Sets the number format used by this formatter.  You only need to
      * call this if you want a different number format than the default
      * formatter for the locale.
      * @param format  the number format to use.
      * @param status  output param set to success/failure code on exit, which
      *                must not indicate a failure before the function call.
      * @stable ICU 4.0
      */
    void setNumberFormat(const NumberFormat* format, UErrorCode& status);

    /**
       * Assignment operator
       *
       * @param other    the PluralFormat object to copy from.
       * @stable ICU 4.0
       */
    PluralFormat& operator=(const PluralFormat& other);

    /**
      * Return true if another object is semantically equal to this one.
      *
      * @param other    the PluralFormat object to be compared with.
      * @return         true if other is semantically equal to this.
      * @stable ICU 4.0
      */
    virtual UBool operator==(const Format& other) const;

    /**
     * Return true if another object is semantically unequal to this one.
     *
     * @param other    the PluralFormat object to be compared with.
     * @return         true if other is semantically unequal to this.
     * @stable ICU 4.0
     */
    virtual UBool operator!=(const Format& other) const;

    /**
     * Clones this Format object polymorphically.  The caller owns the
     * result and should delete it when done.
     * @stable ICU 4.0
     */
    virtual Format* clone(void) const;

   /**
    * Formats a plural message for a number taken from a Formattable object.
    *
    * @param obj       The object containing a number for which the 
    *                  plural message should be formatted.
    *                  The object must be of a numeric type.
    * @param appendTo  output parameter to receive result.
    *                  Result is appended to existing contents.
    * @param pos       On input: an alignment field, if desired.
    *                  On output: the offsets of the alignment field.
    * @param status    output param filled with success/failure status.
    * @return          Reference to 'appendTo' parameter.
    * @stable ICU 4.0
    */
   UnicodeString& format(const Formattable& obj,
                         UnicodeString& appendTo,
                         FieldPosition& pos,
                         UErrorCode& status) const;

   /**
    * Returns the pattern from applyPattern() or constructor().
    *
    * @param  appendTo  output parameter to receive result.
     *                  Result is appended to existing contents.
    * @return the UnicodeString with inserted pattern.
    * @stable ICU 4.0
    */
   UnicodeString& toPattern(UnicodeString& appendTo);

   /**
    * This method is not yet supported by <code>PluralFormat</code>.
    * <P>
    * Before calling, set parse_pos.index to the offset you want to start
    * parsing at in the source. After calling, parse_pos.index is the end of
    * the text you parsed. If error occurs, index is unchanged.
    * <P>
    * When parsing, leading whitespace is discarded (with a successful parse),
    * while trailing whitespace is left as is.
    * <P>
    * See Format::parseObject() for more.
    *
    * @param source    The string to be parsed into an object.
    * @param result    Formattable to be set to the parse result.
    *                  If parse fails, return contents are undefined.
    * @param parse_pos The position to start parsing at. Upon return
    *                  this param is set to the position after the
    *                  last character successfully parsed. If the
    *                  source is not parsed successfully, this param
    *                  will remain unchanged.
    * @stable ICU 4.0
    */
   virtual void parseObject(const UnicodeString& source,
                            Formattable& result,
                            ParsePosition& parse_pos) const;

    /**
     * ICU "poor man's RTTI", returns a UClassID for this class.
     *
     * @stable ICU 4.0
     *
     */
    static UClassID U_EXPORT2 getStaticClassID(void);

    /**
     * ICU "poor man's RTTI", returns a UClassID for the actual class.
     *
     * @stable ICU 4.0
     */
     virtual UClassID getDynamicClassID() const;

#if (defined(__xlC__) && (__xlC__ < 0x0C00)) || (U_PLATFORM == U_PF_OS390) || (U_PLATFORM ==U_PF_OS400)
// Work around a compiler bug on xlC 11.1 on AIX 7.1 that would
// prevent PluralSelectorAdapter from implementing private PluralSelector.
// xlC error message:
// 1540-0300 (S) The "private" member "class icu_49::PluralFormat::PluralSelector" cannot be accessed.
public:
#else
private:
#endif
     /**
      * @internal
      */
    class U_I18N_API PluralSelector : public UMemory {
      public:
        virtual ~PluralSelector();
        /**
         * Given a number, returns the appropriate PluralFormat keyword.
         *
         * @param context worker object for the selector.
         * @param number The number to be plural-formatted.
         * @param ec Error code.
         * @return The selected PluralFormat keyword.
         * @internal
         */
        virtual UnicodeString select(void *context, double number, UErrorCode& ec) const = 0;
    };

    /**
     * @internal
     */
    class U_I18N_API PluralSelectorAdapter : public PluralSelector {
      public:
        PluralSelectorAdapter() : pluralRules(NULL) {
        }

        virtual ~PluralSelectorAdapter();

        virtual UnicodeString select(void *context, double number, UErrorCode& /*ec*/) const; /**< @internal */

        void reset();

        PluralRules* pluralRules;
    };

#if defined(__xlC__)
// End of xlC bug workaround, keep remaining definitions private.
private:
#endif
    Locale  locale;
    MessagePattern msgPattern;
    NumberFormat*  numberFormat;
    double offset;
    PluralSelectorAdapter pluralRulesWrapper;

    PluralFormat();   // default constructor not implemented
    void init(const PluralRules* rules, UPluralType type, UErrorCode& status);
    /**
     * Copies dynamically allocated values (pointer fields).
     * Others are copied using their copy constructors and assignment operators.
     */
    void copyObjects(const PluralFormat& other);

    UnicodeString& format(const Formattable& numberObject, double number,
                          UnicodeString& appendTo,
                          FieldPosition& pos,
                          UErrorCode& status) const; /**< @internal */

    /**
     * Finds the PluralFormat sub-message for the given number, or the "other" sub-message.
     * @param pattern A MessagePattern.
     * @param partIndex the index of the first PluralFormat argument style part.
     * @param selector the PluralSelector for mapping the number (minus offset) to a keyword.
     * @param context worker object for the selector.
     * @param number a number to be matched to one of the PluralFormat argument's explicit values,
     *        or mapped via the PluralSelector.
     * @param ec ICU error code.
     * @return the sub-message start part index.
     */
    static int32_t findSubMessage(
         const MessagePattern& pattern, int32_t partIndex,
         const PluralSelector& selector, void *context, double number, UErrorCode& ec); /**< @internal */

    void parseType(const UnicodeString& source, const NFRule *rbnfLenientScanner,
        Formattable& result, FieldPosition& pos) const;

    friend class MessageFormat;
    friend class NFRule;
};

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif // _PLURFMT
//eof