1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /********************************************************************
4 * COPYRIGHT:
5 * Copyright (c) 1997-2015, International Business Machines Corporation and
6 * others. All Rights Reserved.
7 ********************************************************************
8 *
9 * File MSGFMT.CPP
10 *
11 * Modification History:
12 *
13 * Date Name Description
14 * 02/19/97 aliu Converted from java.
15 * 03/20/97 helena Finished first cut of implementation.
16 * 04/10/97 aliu Made to work on AIX. Added stoi to replace wtoi.
17 * 06/11/97 helena Fixed addPattern to take the pattern correctly.
18 * 06/17/97 helena Fixed the getPattern to return the correct pattern.
19 * 07/09/97 helena Made ParsePosition into a class.
20 * 02/22/99 stephen Removed character literals for EBCDIC safety
21 * 11/01/09 kirtig Added SelectFormat
22 ********************************************************************/
23
24 #include "unicode/utypes.h"
25
26 #if !UCONFIG_NO_FORMATTING
27
28 #include "unicode/appendable.h"
29 #include "unicode/choicfmt.h"
30 #include "unicode/datefmt.h"
31 #include "unicode/decimfmt.h"
32 #include "unicode/localpointer.h"
33 #include "unicode/msgfmt.h"
34 #include "unicode/numberformatter.h"
35 #include "unicode/plurfmt.h"
36 #include "unicode/rbnf.h"
37 #include "unicode/selfmt.h"
38 #include "unicode/smpdtfmt.h"
39 #include "unicode/umsg.h"
40 #include "unicode/ustring.h"
41 #include "cmemory.h"
42 #include "patternprops.h"
43 #include "messageimpl.h"
44 #include "msgfmt_impl.h"
45 #include "plurrule_impl.h"
46 #include "uassert.h"
47 #include "uelement.h"
48 #include "uhash.h"
49 #include "ustrfmt.h"
50 #include "util.h"
51 #include "uvector.h"
52 #include "number_decimalquantity.h"
53
54 // *****************************************************************************
55 // class MessageFormat
56 // *****************************************************************************
57
58 #define SINGLE_QUOTE ((UChar)0x0027)
59 #define COMMA ((UChar)0x002C)
60 #define LEFT_CURLY_BRACE ((UChar)0x007B)
61 #define RIGHT_CURLY_BRACE ((UChar)0x007D)
62
63 //---------------------------------------
64 // static data
65
66 static const UChar ID_NUMBER[] = {
67 0x6E, 0x75, 0x6D, 0x62, 0x65, 0x72, 0 /* "number" */
68 };
69 static const UChar ID_DATE[] = {
70 0x64, 0x61, 0x74, 0x65, 0 /* "date" */
71 };
72 static const UChar ID_TIME[] = {
73 0x74, 0x69, 0x6D, 0x65, 0 /* "time" */
74 };
75 static const UChar ID_SPELLOUT[] = {
76 0x73, 0x70, 0x65, 0x6c, 0x6c, 0x6f, 0x75, 0x74, 0 /* "spellout" */
77 };
78 static const UChar ID_ORDINAL[] = {
79 0x6f, 0x72, 0x64, 0x69, 0x6e, 0x61, 0x6c, 0 /* "ordinal" */
80 };
81 static const UChar ID_DURATION[] = {
82 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0 /* "duration" */
83 };
84
85 // MessageFormat Type List Number, Date, Time or Choice
86 static const UChar * const TYPE_IDS[] = {
87 ID_NUMBER,
88 ID_DATE,
89 ID_TIME,
90 ID_SPELLOUT,
91 ID_ORDINAL,
92 ID_DURATION,
93 NULL,
94 };
95
96 static const UChar ID_EMPTY[] = {
97 0 /* empty string, used for default so that null can mark end of list */
98 };
99 static const UChar ID_CURRENCY[] = {
100 0x63, 0x75, 0x72, 0x72, 0x65, 0x6E, 0x63, 0x79, 0 /* "currency" */
101 };
102 static const UChar ID_PERCENT[] = {
103 0x70, 0x65, 0x72, 0x63, 0x65, 0x6E, 0x74, 0 /* "percent" */
104 };
105 static const UChar ID_INTEGER[] = {
106 0x69, 0x6E, 0x74, 0x65, 0x67, 0x65, 0x72, 0 /* "integer" */
107 };
108
109 // NumberFormat modifier list, default, currency, percent or integer
110 static const UChar * const NUMBER_STYLE_IDS[] = {
111 ID_EMPTY,
112 ID_CURRENCY,
113 ID_PERCENT,
114 ID_INTEGER,
115 NULL,
116 };
117
118 static const UChar ID_SHORT[] = {
119 0x73, 0x68, 0x6F, 0x72, 0x74, 0 /* "short" */
120 };
121 static const UChar ID_MEDIUM[] = {
122 0x6D, 0x65, 0x64, 0x69, 0x75, 0x6D, 0 /* "medium" */
123 };
124 static const UChar ID_LONG[] = {
125 0x6C, 0x6F, 0x6E, 0x67, 0 /* "long" */
126 };
127 static const UChar ID_FULL[] = {
128 0x66, 0x75, 0x6C, 0x6C, 0 /* "full" */
129 };
130
131 // DateFormat modifier list, default, short, medium, long or full
132 static const UChar * const DATE_STYLE_IDS[] = {
133 ID_EMPTY,
134 ID_SHORT,
135 ID_MEDIUM,
136 ID_LONG,
137 ID_FULL,
138 NULL,
139 };
140
141 static const icu::DateFormat::EStyle DATE_STYLES[] = {
142 icu::DateFormat::kDefault,
143 icu::DateFormat::kShort,
144 icu::DateFormat::kMedium,
145 icu::DateFormat::kLong,
146 icu::DateFormat::kFull,
147 };
148
149 static const int32_t DEFAULT_INITIAL_CAPACITY = 10;
150
151 static const UChar NULL_STRING[] = {
152 0x6E, 0x75, 0x6C, 0x6C, 0 // "null"
153 };
154
155 static const UChar OTHER_STRING[] = {
156 0x6F, 0x74, 0x68, 0x65, 0x72, 0 // "other"
157 };
158
159 U_CDECL_BEGIN
equalFormatsForHash(const UHashTok key1,const UHashTok key2)160 static UBool U_CALLCONV equalFormatsForHash(const UHashTok key1,
161 const UHashTok key2) {
162 return icu::MessageFormat::equalFormats(key1.pointer, key2.pointer);
163 }
164
165 U_CDECL_END
166
167 U_NAMESPACE_BEGIN
168
169 // -------------------------------------
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(MessageFormat)170 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(MessageFormat)
171 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FormatNameEnumeration)
172
173 //--------------------------------------------------------------------
174
175 /**
176 * Convert an integer value to a string and append the result to
177 * the given UnicodeString.
178 */
179 static UnicodeString& itos(int32_t i, UnicodeString& appendTo) {
180 UChar temp[16];
181 uprv_itou(temp,16,i,10,0); // 10 == radix
182 appendTo.append(temp, -1);
183 return appendTo;
184 }
185
186
187 // AppendableWrapper: encapsulates the result of formatting, keeping track
188 // of the string and its length.
189 class AppendableWrapper : public UMemory {
190 public:
AppendableWrapper(Appendable & appendable)191 AppendableWrapper(Appendable& appendable) : app(appendable), len(0) {
192 }
append(const UnicodeString & s)193 void append(const UnicodeString& s) {
194 app.appendString(s.getBuffer(), s.length());
195 len += s.length();
196 }
append(const UChar * s,const int32_t sLength)197 void append(const UChar* s, const int32_t sLength) {
198 app.appendString(s, sLength);
199 len += sLength;
200 }
append(const UnicodeString & s,int32_t start,int32_t length)201 void append(const UnicodeString& s, int32_t start, int32_t length) {
202 append(s.tempSubString(start, length));
203 }
formatAndAppend(const Format * formatter,const Formattable & arg,UErrorCode & ec)204 void formatAndAppend(const Format* formatter, const Formattable& arg, UErrorCode& ec) {
205 UnicodeString s;
206 formatter->format(arg, s, ec);
207 if (U_SUCCESS(ec)) {
208 append(s);
209 }
210 }
formatAndAppend(const Format * formatter,const Formattable & arg,const UnicodeString & argString,UErrorCode & ec)211 void formatAndAppend(const Format* formatter, const Formattable& arg,
212 const UnicodeString &argString, UErrorCode& ec) {
213 if (!argString.isEmpty()) {
214 if (U_SUCCESS(ec)) {
215 append(argString);
216 }
217 } else {
218 formatAndAppend(formatter, arg, ec);
219 }
220 }
length()221 int32_t length() {
222 return len;
223 }
224 private:
225 Appendable& app;
226 int32_t len;
227 };
228
229
230 // -------------------------------------
231 // Creates a MessageFormat instance based on the pattern.
232
MessageFormat(const UnicodeString & pattern,UErrorCode & success)233 MessageFormat::MessageFormat(const UnicodeString& pattern,
234 UErrorCode& success)
235 : fLocale(Locale::getDefault()), // Uses the default locale
236 msgPattern(success),
237 formatAliases(NULL),
238 formatAliasesCapacity(0),
239 argTypes(NULL),
240 argTypeCount(0),
241 argTypeCapacity(0),
242 hasArgTypeConflicts(FALSE),
243 defaultNumberFormat(NULL),
244 defaultDateFormat(NULL),
245 cachedFormatters(NULL),
246 customFormatArgStarts(NULL),
247 pluralProvider(*this, UPLURAL_TYPE_CARDINAL),
248 ordinalProvider(*this, UPLURAL_TYPE_ORDINAL)
249 {
250 setLocaleIDs(fLocale.getName(), fLocale.getName());
251 applyPattern(pattern, success);
252 }
253
MessageFormat(const UnicodeString & pattern,const Locale & newLocale,UErrorCode & success)254 MessageFormat::MessageFormat(const UnicodeString& pattern,
255 const Locale& newLocale,
256 UErrorCode& success)
257 : fLocale(newLocale),
258 msgPattern(success),
259 formatAliases(NULL),
260 formatAliasesCapacity(0),
261 argTypes(NULL),
262 argTypeCount(0),
263 argTypeCapacity(0),
264 hasArgTypeConflicts(FALSE),
265 defaultNumberFormat(NULL),
266 defaultDateFormat(NULL),
267 cachedFormatters(NULL),
268 customFormatArgStarts(NULL),
269 pluralProvider(*this, UPLURAL_TYPE_CARDINAL),
270 ordinalProvider(*this, UPLURAL_TYPE_ORDINAL)
271 {
272 setLocaleIDs(fLocale.getName(), fLocale.getName());
273 applyPattern(pattern, success);
274 }
275
MessageFormat(const UnicodeString & pattern,const Locale & newLocale,UParseError & parseError,UErrorCode & success)276 MessageFormat::MessageFormat(const UnicodeString& pattern,
277 const Locale& newLocale,
278 UParseError& parseError,
279 UErrorCode& success)
280 : fLocale(newLocale),
281 msgPattern(success),
282 formatAliases(NULL),
283 formatAliasesCapacity(0),
284 argTypes(NULL),
285 argTypeCount(0),
286 argTypeCapacity(0),
287 hasArgTypeConflicts(FALSE),
288 defaultNumberFormat(NULL),
289 defaultDateFormat(NULL),
290 cachedFormatters(NULL),
291 customFormatArgStarts(NULL),
292 pluralProvider(*this, UPLURAL_TYPE_CARDINAL),
293 ordinalProvider(*this, UPLURAL_TYPE_ORDINAL)
294 {
295 setLocaleIDs(fLocale.getName(), fLocale.getName());
296 applyPattern(pattern, parseError, success);
297 }
298
MessageFormat(const MessageFormat & that)299 MessageFormat::MessageFormat(const MessageFormat& that)
300 :
301 Format(that),
302 fLocale(that.fLocale),
303 msgPattern(that.msgPattern),
304 formatAliases(NULL),
305 formatAliasesCapacity(0),
306 argTypes(NULL),
307 argTypeCount(0),
308 argTypeCapacity(0),
309 hasArgTypeConflicts(that.hasArgTypeConflicts),
310 defaultNumberFormat(NULL),
311 defaultDateFormat(NULL),
312 cachedFormatters(NULL),
313 customFormatArgStarts(NULL),
314 pluralProvider(*this, UPLURAL_TYPE_CARDINAL),
315 ordinalProvider(*this, UPLURAL_TYPE_ORDINAL)
316 {
317 // This will take care of creating the hash tables (since they are NULL).
318 UErrorCode ec = U_ZERO_ERROR;
319 copyObjects(that, ec);
320 if (U_FAILURE(ec)) {
321 resetPattern();
322 }
323 }
324
~MessageFormat()325 MessageFormat::~MessageFormat()
326 {
327 uhash_close(cachedFormatters);
328 uhash_close(customFormatArgStarts);
329
330 uprv_free(argTypes);
331 uprv_free(formatAliases);
332 delete defaultNumberFormat;
333 delete defaultDateFormat;
334 }
335
336 //--------------------------------------------------------------------
337 // Variable-size array management
338
339 /**
340 * Allocate argTypes[] to at least the given capacity and return
341 * TRUE if successful. If not, leave argTypes[] unchanged.
342 *
343 * If argTypes is NULL, allocate it. If it is not NULL, enlarge it
344 * if necessary to be at least as large as specified.
345 */
allocateArgTypes(int32_t capacity,UErrorCode & status)346 UBool MessageFormat::allocateArgTypes(int32_t capacity, UErrorCode& status) {
347 if (U_FAILURE(status)) {
348 return FALSE;
349 }
350 if (argTypeCapacity >= capacity) {
351 return TRUE;
352 }
353 if (capacity < DEFAULT_INITIAL_CAPACITY) {
354 capacity = DEFAULT_INITIAL_CAPACITY;
355 } else if (capacity < 2*argTypeCapacity) {
356 capacity = 2*argTypeCapacity;
357 }
358 Formattable::Type* a = (Formattable::Type*)
359 uprv_realloc(argTypes, sizeof(*argTypes) * capacity);
360 if (a == NULL) {
361 status = U_MEMORY_ALLOCATION_ERROR;
362 return FALSE;
363 }
364 argTypes = a;
365 argTypeCapacity = capacity;
366 return TRUE;
367 }
368
369 // -------------------------------------
370 // assignment operator
371
372 const MessageFormat&
operator =(const MessageFormat & that)373 MessageFormat::operator=(const MessageFormat& that)
374 {
375 if (this != &that) {
376 // Calls the super class for assignment first.
377 Format::operator=(that);
378
379 setLocale(that.fLocale);
380 msgPattern = that.msgPattern;
381 hasArgTypeConflicts = that.hasArgTypeConflicts;
382
383 UErrorCode ec = U_ZERO_ERROR;
384 copyObjects(that, ec);
385 if (U_FAILURE(ec)) {
386 resetPattern();
387 }
388 }
389 return *this;
390 }
391
392 UBool
operator ==(const Format & rhs) const393 MessageFormat::operator==(const Format& rhs) const
394 {
395 if (this == &rhs) return TRUE;
396
397 MessageFormat& that = (MessageFormat&)rhs;
398
399 // Check class ID before checking MessageFormat members
400 if (!Format::operator==(rhs) ||
401 msgPattern != that.msgPattern ||
402 fLocale != that.fLocale) {
403 return FALSE;
404 }
405
406 // Compare hashtables.
407 if ((customFormatArgStarts == NULL) != (that.customFormatArgStarts == NULL)) {
408 return FALSE;
409 }
410 if (customFormatArgStarts == NULL) {
411 return TRUE;
412 }
413
414 UErrorCode ec = U_ZERO_ERROR;
415 const int32_t count = uhash_count(customFormatArgStarts);
416 const int32_t rhs_count = uhash_count(that.customFormatArgStarts);
417 if (count != rhs_count) {
418 return FALSE;
419 }
420 int32_t idx = 0, rhs_idx = 0, pos = UHASH_FIRST, rhs_pos = UHASH_FIRST;
421 for (; idx < count && rhs_idx < rhs_count && U_SUCCESS(ec); ++idx, ++rhs_idx) {
422 const UHashElement* cur = uhash_nextElement(customFormatArgStarts, &pos);
423 const UHashElement* rhs_cur = uhash_nextElement(that.customFormatArgStarts, &rhs_pos);
424 if (cur->key.integer != rhs_cur->key.integer) {
425 return FALSE;
426 }
427 const Format* format = (const Format*)uhash_iget(cachedFormatters, cur->key.integer);
428 const Format* rhs_format = (const Format*)uhash_iget(that.cachedFormatters, rhs_cur->key.integer);
429 if (*format != *rhs_format) {
430 return FALSE;
431 }
432 }
433 return TRUE;
434 }
435
436 // -------------------------------------
437 // Creates a copy of this MessageFormat, the caller owns the copy.
438
439 Format*
clone() const440 MessageFormat::clone() const
441 {
442 return new MessageFormat(*this);
443 }
444
445 // -------------------------------------
446 // Sets the locale of this MessageFormat object to theLocale.
447
448 void
setLocale(const Locale & theLocale)449 MessageFormat::setLocale(const Locale& theLocale)
450 {
451 if (fLocale != theLocale) {
452 delete defaultNumberFormat;
453 defaultNumberFormat = NULL;
454 delete defaultDateFormat;
455 defaultDateFormat = NULL;
456 fLocale = theLocale;
457 setLocaleIDs(fLocale.getName(), fLocale.getName());
458 pluralProvider.reset();
459 ordinalProvider.reset();
460 }
461 }
462
463 // -------------------------------------
464 // Gets the locale of this MessageFormat object.
465
466 const Locale&
getLocale() const467 MessageFormat::getLocale() const
468 {
469 return fLocale;
470 }
471
472 void
applyPattern(const UnicodeString & newPattern,UErrorCode & status)473 MessageFormat::applyPattern(const UnicodeString& newPattern,
474 UErrorCode& status)
475 {
476 UParseError parseError;
477 applyPattern(newPattern,parseError,status);
478 }
479
480
481 // -------------------------------------
482 // Applies the new pattern and returns an error if the pattern
483 // is not correct.
484 void
applyPattern(const UnicodeString & pattern,UParseError & parseError,UErrorCode & ec)485 MessageFormat::applyPattern(const UnicodeString& pattern,
486 UParseError& parseError,
487 UErrorCode& ec)
488 {
489 if(U_FAILURE(ec)) {
490 return;
491 }
492 msgPattern.parse(pattern, &parseError, ec);
493 cacheExplicitFormats(ec);
494
495 if (U_FAILURE(ec)) {
496 resetPattern();
497 }
498 }
499
resetPattern()500 void MessageFormat::resetPattern() {
501 msgPattern.clear();
502 uhash_close(cachedFormatters);
503 cachedFormatters = NULL;
504 uhash_close(customFormatArgStarts);
505 customFormatArgStarts = NULL;
506 argTypeCount = 0;
507 hasArgTypeConflicts = FALSE;
508 }
509
510 void
applyPattern(const UnicodeString & pattern,UMessagePatternApostropheMode aposMode,UParseError * parseError,UErrorCode & status)511 MessageFormat::applyPattern(const UnicodeString& pattern,
512 UMessagePatternApostropheMode aposMode,
513 UParseError* parseError,
514 UErrorCode& status) {
515 if (aposMode != msgPattern.getApostropheMode()) {
516 msgPattern.clearPatternAndSetApostropheMode(aposMode);
517 }
518 applyPattern(pattern, *parseError, status);
519 }
520
521 // -------------------------------------
522 // Converts this MessageFormat instance to a pattern.
523
524 UnicodeString&
toPattern(UnicodeString & appendTo) const525 MessageFormat::toPattern(UnicodeString& appendTo) const {
526 if ((customFormatArgStarts != NULL && 0 != uhash_count(customFormatArgStarts)) ||
527 0 == msgPattern.countParts()
528 ) {
529 appendTo.setToBogus();
530 return appendTo;
531 }
532 return appendTo.append(msgPattern.getPatternString());
533 }
534
nextTopLevelArgStart(int32_t partIndex) const535 int32_t MessageFormat::nextTopLevelArgStart(int32_t partIndex) const {
536 if (partIndex != 0) {
537 partIndex = msgPattern.getLimitPartIndex(partIndex);
538 }
539 for (;;) {
540 UMessagePatternPartType type = msgPattern.getPartType(++partIndex);
541 if (type == UMSGPAT_PART_TYPE_ARG_START) {
542 return partIndex;
543 }
544 if (type == UMSGPAT_PART_TYPE_MSG_LIMIT) {
545 return -1;
546 }
547 }
548 }
549
setArgStartFormat(int32_t argStart,Format * formatter,UErrorCode & status)550 void MessageFormat::setArgStartFormat(int32_t argStart,
551 Format* formatter,
552 UErrorCode& status) {
553 if (U_FAILURE(status)) {
554 delete formatter;
555 return;
556 }
557 if (cachedFormatters == NULL) {
558 cachedFormatters=uhash_open(uhash_hashLong, uhash_compareLong,
559 equalFormatsForHash, &status);
560 if (U_FAILURE(status)) {
561 delete formatter;
562 return;
563 }
564 uhash_setValueDeleter(cachedFormatters, uprv_deleteUObject);
565 }
566 if (formatter == NULL) {
567 formatter = new DummyFormat();
568 }
569 uhash_iput(cachedFormatters, argStart, formatter, &status);
570 }
571
572
argNameMatches(int32_t partIndex,const UnicodeString & argName,int32_t argNumber)573 UBool MessageFormat::argNameMatches(int32_t partIndex, const UnicodeString& argName, int32_t argNumber) {
574 const MessagePattern::Part& part = msgPattern.getPart(partIndex);
575 return part.getType() == UMSGPAT_PART_TYPE_ARG_NAME ?
576 msgPattern.partSubstringMatches(part, argName) :
577 part.getValue() == argNumber; // ARG_NUMBER
578 }
579
580 // Sets a custom formatter for a MessagePattern ARG_START part index.
581 // "Custom" formatters are provided by the user via setFormat() or similar APIs.
setCustomArgStartFormat(int32_t argStart,Format * formatter,UErrorCode & status)582 void MessageFormat::setCustomArgStartFormat(int32_t argStart,
583 Format* formatter,
584 UErrorCode& status) {
585 setArgStartFormat(argStart, formatter, status);
586 if (customFormatArgStarts == NULL) {
587 customFormatArgStarts=uhash_open(uhash_hashLong, uhash_compareLong,
588 NULL, &status);
589 }
590 uhash_iputi(customFormatArgStarts, argStart, 1, &status);
591 }
592
getCachedFormatter(int32_t argumentNumber) const593 Format* MessageFormat::getCachedFormatter(int32_t argumentNumber) const {
594 if (cachedFormatters == NULL) {
595 return NULL;
596 }
597 void* ptr = uhash_iget(cachedFormatters, argumentNumber);
598 if (ptr != NULL && dynamic_cast<DummyFormat*>((Format*)ptr) == NULL) {
599 return (Format*) ptr;
600 } else {
601 // Not cached, or a DummyFormat representing setFormat(NULL).
602 return NULL;
603 }
604 }
605
606 // -------------------------------------
607 // Adopts the new formats array and updates the array count.
608 // This MessageFormat instance owns the new formats.
609 void
adoptFormats(Format ** newFormats,int32_t count)610 MessageFormat::adoptFormats(Format** newFormats,
611 int32_t count) {
612 if (newFormats == NULL || count < 0) {
613 return;
614 }
615 // Throw away any cached formatters.
616 if (cachedFormatters != NULL) {
617 uhash_removeAll(cachedFormatters);
618 }
619 if (customFormatArgStarts != NULL) {
620 uhash_removeAll(customFormatArgStarts);
621 }
622
623 int32_t formatNumber = 0;
624 UErrorCode status = U_ZERO_ERROR;
625 for (int32_t partIndex = 0;
626 formatNumber < count && U_SUCCESS(status) &&
627 (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
628 setCustomArgStartFormat(partIndex, newFormats[formatNumber], status);
629 ++formatNumber;
630 }
631 // Delete those that didn't get used (if any).
632 for (; formatNumber < count; ++formatNumber) {
633 delete newFormats[formatNumber];
634 }
635
636 }
637
638 // -------------------------------------
639 // Sets the new formats array and updates the array count.
640 // This MessageFormat instance maks a copy of the new formats.
641
642 void
setFormats(const Format ** newFormats,int32_t count)643 MessageFormat::setFormats(const Format** newFormats,
644 int32_t count) {
645 if (newFormats == NULL || count < 0) {
646 return;
647 }
648 // Throw away any cached formatters.
649 if (cachedFormatters != NULL) {
650 uhash_removeAll(cachedFormatters);
651 }
652 if (customFormatArgStarts != NULL) {
653 uhash_removeAll(customFormatArgStarts);
654 }
655
656 UErrorCode status = U_ZERO_ERROR;
657 int32_t formatNumber = 0;
658 for (int32_t partIndex = 0;
659 formatNumber < count && U_SUCCESS(status) && (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
660 Format* newFormat = NULL;
661 if (newFormats[formatNumber] != NULL) {
662 newFormat = newFormats[formatNumber]->clone();
663 if (newFormat == NULL) {
664 status = U_MEMORY_ALLOCATION_ERROR;
665 }
666 }
667 setCustomArgStartFormat(partIndex, newFormat, status);
668 ++formatNumber;
669 }
670 if (U_FAILURE(status)) {
671 resetPattern();
672 }
673 }
674
675 // -------------------------------------
676 // Adopt a single format by format number.
677 // Do nothing if the format number is not less than the array count.
678
679 void
adoptFormat(int32_t n,Format * newFormat)680 MessageFormat::adoptFormat(int32_t n, Format *newFormat) {
681 LocalPointer<Format> p(newFormat);
682 if (n >= 0) {
683 int32_t formatNumber = 0;
684 for (int32_t partIndex = 0; (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
685 if (n == formatNumber) {
686 UErrorCode status = U_ZERO_ERROR;
687 setCustomArgStartFormat(partIndex, p.orphan(), status);
688 return;
689 }
690 ++formatNumber;
691 }
692 }
693 }
694
695 // -------------------------------------
696 // Adopt a single format by format name.
697 // Do nothing if there is no match of formatName.
698 void
adoptFormat(const UnicodeString & formatName,Format * formatToAdopt,UErrorCode & status)699 MessageFormat::adoptFormat(const UnicodeString& formatName,
700 Format* formatToAdopt,
701 UErrorCode& status) {
702 LocalPointer<Format> p(formatToAdopt);
703 if (U_FAILURE(status)) {
704 return;
705 }
706 int32_t argNumber = MessagePattern::validateArgumentName(formatName);
707 if (argNumber < UMSGPAT_ARG_NAME_NOT_NUMBER) {
708 status = U_ILLEGAL_ARGUMENT_ERROR;
709 return;
710 }
711 for (int32_t partIndex = 0;
712 (partIndex = nextTopLevelArgStart(partIndex)) >= 0 && U_SUCCESS(status);
713 ) {
714 if (argNameMatches(partIndex + 1, formatName, argNumber)) {
715 Format* f;
716 if (p.isValid()) {
717 f = p.orphan();
718 } else if (formatToAdopt == NULL) {
719 f = NULL;
720 } else {
721 f = formatToAdopt->clone();
722 if (f == NULL) {
723 status = U_MEMORY_ALLOCATION_ERROR;
724 return;
725 }
726 }
727 setCustomArgStartFormat(partIndex, f, status);
728 }
729 }
730 }
731
732 // -------------------------------------
733 // Set a single format.
734 // Do nothing if the variable is not less than the array count.
735 void
setFormat(int32_t n,const Format & newFormat)736 MessageFormat::setFormat(int32_t n, const Format& newFormat) {
737
738 if (n >= 0) {
739 int32_t formatNumber = 0;
740 for (int32_t partIndex = 0;
741 (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
742 if (n == formatNumber) {
743 Format* new_format = newFormat.clone();
744 if (new_format) {
745 UErrorCode status = U_ZERO_ERROR;
746 setCustomArgStartFormat(partIndex, new_format, status);
747 }
748 return;
749 }
750 ++formatNumber;
751 }
752 }
753 }
754
755 // -------------------------------------
756 // Get a single format by format name.
757 // Do nothing if the variable is not less than the array count.
758 Format *
getFormat(const UnicodeString & formatName,UErrorCode & status)759 MessageFormat::getFormat(const UnicodeString& formatName, UErrorCode& status) {
760 if (U_FAILURE(status) || cachedFormatters == NULL) return NULL;
761
762 int32_t argNumber = MessagePattern::validateArgumentName(formatName);
763 if (argNumber < UMSGPAT_ARG_NAME_NOT_NUMBER) {
764 status = U_ILLEGAL_ARGUMENT_ERROR;
765 return NULL;
766 }
767 for (int32_t partIndex = 0; (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
768 if (argNameMatches(partIndex + 1, formatName, argNumber)) {
769 return getCachedFormatter(partIndex);
770 }
771 }
772 return NULL;
773 }
774
775 // -------------------------------------
776 // Set a single format by format name
777 // Do nothing if the variable is not less than the array count.
778 void
setFormat(const UnicodeString & formatName,const Format & newFormat,UErrorCode & status)779 MessageFormat::setFormat(const UnicodeString& formatName,
780 const Format& newFormat,
781 UErrorCode& status) {
782 if (U_FAILURE(status)) return;
783
784 int32_t argNumber = MessagePattern::validateArgumentName(formatName);
785 if (argNumber < UMSGPAT_ARG_NAME_NOT_NUMBER) {
786 status = U_ILLEGAL_ARGUMENT_ERROR;
787 return;
788 }
789 for (int32_t partIndex = 0;
790 (partIndex = nextTopLevelArgStart(partIndex)) >= 0 && U_SUCCESS(status);
791 ) {
792 if (argNameMatches(partIndex + 1, formatName, argNumber)) {
793 Format* new_format = newFormat.clone();
794 if (new_format == NULL) {
795 status = U_MEMORY_ALLOCATION_ERROR;
796 return;
797 }
798 setCustomArgStartFormat(partIndex, new_format, status);
799 }
800 }
801 }
802
803 // -------------------------------------
804 // Gets the format array.
805 const Format**
getFormats(int32_t & cnt) const806 MessageFormat::getFormats(int32_t& cnt) const
807 {
808 // This old API returns an array (which we hold) of Format*
809 // pointers. The array is valid up to the next call to any
810 // method on this object. We construct and resize an array
811 // on demand that contains aliases to the subformats[i].format
812 // pointers.
813 MessageFormat* t = const_cast<MessageFormat*> (this);
814 cnt = 0;
815 if (formatAliases == NULL) {
816 t->formatAliasesCapacity = (argTypeCount<10) ? 10 : argTypeCount;
817 Format** a = (Format**)
818 uprv_malloc(sizeof(Format*) * formatAliasesCapacity);
819 if (a == NULL) {
820 t->formatAliasesCapacity = 0;
821 return NULL;
822 }
823 t->formatAliases = a;
824 } else if (argTypeCount > formatAliasesCapacity) {
825 Format** a = (Format**)
826 uprv_realloc(formatAliases, sizeof(Format*) * argTypeCount);
827 if (a == NULL) {
828 t->formatAliasesCapacity = 0;
829 return NULL;
830 }
831 t->formatAliases = a;
832 t->formatAliasesCapacity = argTypeCount;
833 }
834
835 for (int32_t partIndex = 0; (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
836 t->formatAliases[cnt++] = getCachedFormatter(partIndex);
837 }
838
839 return (const Format**)formatAliases;
840 }
841
842
getArgName(int32_t partIndex)843 UnicodeString MessageFormat::getArgName(int32_t partIndex) {
844 const MessagePattern::Part& part = msgPattern.getPart(partIndex);
845 return msgPattern.getSubstring(part);
846 }
847
848 StringEnumeration*
getFormatNames(UErrorCode & status)849 MessageFormat::getFormatNames(UErrorCode& status) {
850 if (U_FAILURE(status)) return NULL;
851
852 UVector *fFormatNames = new UVector(status);
853 if (U_FAILURE(status)) {
854 status = U_MEMORY_ALLOCATION_ERROR;
855 return NULL;
856 }
857 fFormatNames->setDeleter(uprv_deleteUObject);
858
859 for (int32_t partIndex = 0; (partIndex = nextTopLevelArgStart(partIndex)) >= 0;) {
860 fFormatNames->addElement(new UnicodeString(getArgName(partIndex + 1)), status);
861 }
862
863 StringEnumeration* nameEnumerator = new FormatNameEnumeration(fFormatNames, status);
864 return nameEnumerator;
865 }
866
867 // -------------------------------------
868 // Formats the source Formattable array and copy into the result buffer.
869 // Ignore the FieldPosition result for error checking.
870
871 UnicodeString&
format(const Formattable * source,int32_t cnt,UnicodeString & appendTo,FieldPosition & ignore,UErrorCode & success) const872 MessageFormat::format(const Formattable* source,
873 int32_t cnt,
874 UnicodeString& appendTo,
875 FieldPosition& ignore,
876 UErrorCode& success) const
877 {
878 return format(source, NULL, cnt, appendTo, &ignore, success);
879 }
880
881 // -------------------------------------
882 // Internally creates a MessageFormat instance based on the
883 // pattern and formats the arguments Formattable array and
884 // copy into the appendTo buffer.
885
886 UnicodeString&
format(const UnicodeString & pattern,const Formattable * arguments,int32_t cnt,UnicodeString & appendTo,UErrorCode & success)887 MessageFormat::format( const UnicodeString& pattern,
888 const Formattable* arguments,
889 int32_t cnt,
890 UnicodeString& appendTo,
891 UErrorCode& success)
892 {
893 MessageFormat temp(pattern, success);
894 return temp.format(arguments, NULL, cnt, appendTo, NULL, success);
895 }
896
897 // -------------------------------------
898 // Formats the source Formattable object and copy into the
899 // appendTo buffer. The Formattable object must be an array
900 // of Formattable instances, returns error otherwise.
901
902 UnicodeString&
format(const Formattable & source,UnicodeString & appendTo,FieldPosition & ignore,UErrorCode & success) const903 MessageFormat::format(const Formattable& source,
904 UnicodeString& appendTo,
905 FieldPosition& ignore,
906 UErrorCode& success) const
907 {
908 if (U_FAILURE(success))
909 return appendTo;
910 if (source.getType() != Formattable::kArray) {
911 success = U_ILLEGAL_ARGUMENT_ERROR;
912 return appendTo;
913 }
914 int32_t cnt;
915 const Formattable* tmpPtr = source.getArray(cnt);
916 return format(tmpPtr, NULL, cnt, appendTo, &ignore, success);
917 }
918
919 UnicodeString&
format(const UnicodeString * argumentNames,const Formattable * arguments,int32_t count,UnicodeString & appendTo,UErrorCode & success) const920 MessageFormat::format(const UnicodeString* argumentNames,
921 const Formattable* arguments,
922 int32_t count,
923 UnicodeString& appendTo,
924 UErrorCode& success) const {
925 return format(arguments, argumentNames, count, appendTo, NULL, success);
926 }
927
928 // Does linear search to find the match for an ArgName.
getArgFromListByName(const Formattable * arguments,const UnicodeString * argumentNames,int32_t cnt,UnicodeString & name) const929 const Formattable* MessageFormat::getArgFromListByName(const Formattable* arguments,
930 const UnicodeString *argumentNames,
931 int32_t cnt, UnicodeString& name) const {
932 for (int32_t i = 0; i < cnt; ++i) {
933 if (0 == argumentNames[i].compare(name)) {
934 return arguments + i;
935 }
936 }
937 return NULL;
938 }
939
940
941 UnicodeString&
format(const Formattable * arguments,const UnicodeString * argumentNames,int32_t cnt,UnicodeString & appendTo,FieldPosition * pos,UErrorCode & status) const942 MessageFormat::format(const Formattable* arguments,
943 const UnicodeString *argumentNames,
944 int32_t cnt,
945 UnicodeString& appendTo,
946 FieldPosition* pos,
947 UErrorCode& status) const {
948 if (U_FAILURE(status)) {
949 return appendTo;
950 }
951
952 UnicodeStringAppendable usapp(appendTo);
953 AppendableWrapper app(usapp);
954 format(0, NULL, arguments, argumentNames, cnt, app, pos, status);
955 return appendTo;
956 }
957
958 namespace {
959
960 /**
961 * Mutable input/output values for the PluralSelectorProvider.
962 * Separate so that it is possible to make MessageFormat Freezable.
963 */
964 class PluralSelectorContext {
965 public:
PluralSelectorContext(int32_t start,const UnicodeString & name,const Formattable & num,double off,UErrorCode & errorCode)966 PluralSelectorContext(int32_t start, const UnicodeString &name,
967 const Formattable &num, double off, UErrorCode &errorCode)
968 : startIndex(start), argName(name), offset(off),
969 numberArgIndex(-1), formatter(NULL), forReplaceNumber(FALSE) {
970 // number needs to be set even when select() is not called.
971 // Keep it as a Number/Formattable:
972 // For format() methods, and to preserve information (e.g., BigDecimal).
973 if(off == 0) {
974 number = num;
975 } else {
976 number = num.getDouble(errorCode) - off;
977 }
978 }
979
980 // Input values for plural selection with decimals.
981 int32_t startIndex;
982 const UnicodeString &argName;
983 /** argument number - plural offset */
984 Formattable number;
985 double offset;
986 // Output values for plural selection with decimals.
987 /** -1 if REPLACE_NUMBER, 0 arg not found, >0 ARG_START index */
988 int32_t numberArgIndex;
989 const Format *formatter;
990 /** formatted argument number - plural offset */
991 UnicodeString numberString;
992 /** TRUE if number-offset was formatted with the stock number formatter */
993 UBool forReplaceNumber;
994 };
995
996 } // namespace
997
998 // if argumentNames is NULL, this means arguments is a numeric array.
999 // arguments can not be NULL.
1000 // We use const void *plNumber rather than const PluralSelectorContext *pluralNumber
1001 // so that we need not declare the PluralSelectorContext in the public header file.
format(int32_t msgStart,const void * plNumber,const Formattable * arguments,const UnicodeString * argumentNames,int32_t cnt,AppendableWrapper & appendTo,FieldPosition * ignore,UErrorCode & success) const1002 void MessageFormat::format(int32_t msgStart, const void *plNumber,
1003 const Formattable* arguments,
1004 const UnicodeString *argumentNames,
1005 int32_t cnt,
1006 AppendableWrapper& appendTo,
1007 FieldPosition* ignore,
1008 UErrorCode& success) const {
1009 if (U_FAILURE(success)) {
1010 return;
1011 }
1012
1013 const UnicodeString& msgString = msgPattern.getPatternString();
1014 int32_t prevIndex = msgPattern.getPart(msgStart).getLimit();
1015 for (int32_t i = msgStart + 1; U_SUCCESS(success) ; ++i) {
1016 const MessagePattern::Part* part = &msgPattern.getPart(i);
1017 const UMessagePatternPartType type = part->getType();
1018 int32_t index = part->getIndex();
1019 appendTo.append(msgString, prevIndex, index - prevIndex);
1020 if (type == UMSGPAT_PART_TYPE_MSG_LIMIT) {
1021 return;
1022 }
1023 prevIndex = part->getLimit();
1024 if (type == UMSGPAT_PART_TYPE_REPLACE_NUMBER) {
1025 const PluralSelectorContext &pluralNumber =
1026 *static_cast<const PluralSelectorContext *>(plNumber);
1027 if(pluralNumber.forReplaceNumber) {
1028 // number-offset was already formatted.
1029 appendTo.formatAndAppend(pluralNumber.formatter,
1030 pluralNumber.number, pluralNumber.numberString, success);
1031 } else {
1032 const NumberFormat* nf = getDefaultNumberFormat(success);
1033 appendTo.formatAndAppend(nf, pluralNumber.number, success);
1034 }
1035 continue;
1036 }
1037 if (type != UMSGPAT_PART_TYPE_ARG_START) {
1038 continue;
1039 }
1040 int32_t argLimit = msgPattern.getLimitPartIndex(i);
1041 UMessagePatternArgType argType = part->getArgType();
1042 part = &msgPattern.getPart(++i);
1043 const Formattable* arg;
1044 UBool noArg = FALSE;
1045 UnicodeString argName = msgPattern.getSubstring(*part);
1046 if (argumentNames == NULL) {
1047 int32_t argNumber = part->getValue(); // ARG_NUMBER
1048 if (0 <= argNumber && argNumber < cnt) {
1049 arg = arguments + argNumber;
1050 } else {
1051 arg = NULL;
1052 noArg = TRUE;
1053 }
1054 } else {
1055 arg = getArgFromListByName(arguments, argumentNames, cnt, argName);
1056 if (arg == NULL) {
1057 noArg = TRUE;
1058 }
1059 }
1060 ++i;
1061 int32_t prevDestLength = appendTo.length();
1062 const Format* formatter = NULL;
1063 if (noArg) {
1064 appendTo.append(
1065 UnicodeString(LEFT_CURLY_BRACE).append(argName).append(RIGHT_CURLY_BRACE));
1066 } else if (arg == NULL) {
1067 appendTo.append(NULL_STRING, 4);
1068 } else if(plNumber!=NULL &&
1069 static_cast<const PluralSelectorContext *>(plNumber)->numberArgIndex==(i-2)) {
1070 const PluralSelectorContext &pluralNumber =
1071 *static_cast<const PluralSelectorContext *>(plNumber);
1072 if(pluralNumber.offset == 0) {
1073 // The number was already formatted with this formatter.
1074 appendTo.formatAndAppend(pluralNumber.formatter, pluralNumber.number,
1075 pluralNumber.numberString, success);
1076 } else {
1077 // Do not use the formatted (number-offset) string for a named argument
1078 // that formats the number without subtracting the offset.
1079 appendTo.formatAndAppend(pluralNumber.formatter, *arg, success);
1080 }
1081 } else if ((formatter = getCachedFormatter(i -2)) != 0) {
1082 // Handles all ArgType.SIMPLE, and formatters from setFormat() and its siblings.
1083 if (dynamic_cast<const ChoiceFormat*>(formatter) ||
1084 dynamic_cast<const PluralFormat*>(formatter) ||
1085 dynamic_cast<const SelectFormat*>(formatter)) {
1086 // We only handle nested formats here if they were provided via
1087 // setFormat() or its siblings. Otherwise they are not cached and instead
1088 // handled below according to argType.
1089 UnicodeString subMsgString;
1090 formatter->format(*arg, subMsgString, success);
1091 if (subMsgString.indexOf(LEFT_CURLY_BRACE) >= 0 ||
1092 (subMsgString.indexOf(SINGLE_QUOTE) >= 0 && !MessageImpl::jdkAposMode(msgPattern))
1093 ) {
1094 MessageFormat subMsgFormat(subMsgString, fLocale, success);
1095 subMsgFormat.format(0, NULL, arguments, argumentNames, cnt, appendTo, ignore, success);
1096 } else {
1097 appendTo.append(subMsgString);
1098 }
1099 } else {
1100 appendTo.formatAndAppend(formatter, *arg, success);
1101 }
1102 } else if (argType == UMSGPAT_ARG_TYPE_NONE || (cachedFormatters && uhash_iget(cachedFormatters, i - 2))) {
1103 // We arrive here if getCachedFormatter returned NULL, but there was actually an element in the hash table.
1104 // This can only happen if the hash table contained a DummyFormat, so the if statement above is a check
1105 // for the hash table containind DummyFormat.
1106 if (arg->isNumeric()) {
1107 const NumberFormat* nf = getDefaultNumberFormat(success);
1108 appendTo.formatAndAppend(nf, *arg, success);
1109 } else if (arg->getType() == Formattable::kDate) {
1110 const DateFormat* df = getDefaultDateFormat(success);
1111 appendTo.formatAndAppend(df, *arg, success);
1112 } else {
1113 appendTo.append(arg->getString(success));
1114 }
1115 } else if (argType == UMSGPAT_ARG_TYPE_CHOICE) {
1116 if (!arg->isNumeric()) {
1117 success = U_ILLEGAL_ARGUMENT_ERROR;
1118 return;
1119 }
1120 // We must use the Formattable::getDouble() variant with the UErrorCode parameter
1121 // because only this one converts non-double numeric types to double.
1122 const double number = arg->getDouble(success);
1123 int32_t subMsgStart = ChoiceFormat::findSubMessage(msgPattern, i, number);
1124 formatComplexSubMessage(subMsgStart, NULL, arguments, argumentNames,
1125 cnt, appendTo, success);
1126 } else if (UMSGPAT_ARG_TYPE_HAS_PLURAL_STYLE(argType)) {
1127 if (!arg->isNumeric()) {
1128 success = U_ILLEGAL_ARGUMENT_ERROR;
1129 return;
1130 }
1131 const PluralSelectorProvider &selector =
1132 argType == UMSGPAT_ARG_TYPE_PLURAL ? pluralProvider : ordinalProvider;
1133 // We must use the Formattable::getDouble() variant with the UErrorCode parameter
1134 // because only this one converts non-double numeric types to double.
1135 double offset = msgPattern.getPluralOffset(i);
1136 PluralSelectorContext context(i, argName, *arg, offset, success);
1137 int32_t subMsgStart = PluralFormat::findSubMessage(
1138 msgPattern, i, selector, &context, arg->getDouble(success), success);
1139 formatComplexSubMessage(subMsgStart, &context, arguments, argumentNames,
1140 cnt, appendTo, success);
1141 } else if (argType == UMSGPAT_ARG_TYPE_SELECT) {
1142 int32_t subMsgStart = SelectFormat::findSubMessage(msgPattern, i, arg->getString(success), success);
1143 formatComplexSubMessage(subMsgStart, NULL, arguments, argumentNames,
1144 cnt, appendTo, success);
1145 } else {
1146 // This should never happen.
1147 success = U_INTERNAL_PROGRAM_ERROR;
1148 return;
1149 }
1150 ignore = updateMetaData(appendTo, prevDestLength, ignore, arg);
1151 prevIndex = msgPattern.getPart(argLimit).getLimit();
1152 i = argLimit;
1153 }
1154 }
1155
1156
formatComplexSubMessage(int32_t msgStart,const void * plNumber,const Formattable * arguments,const UnicodeString * argumentNames,int32_t cnt,AppendableWrapper & appendTo,UErrorCode & success) const1157 void MessageFormat::formatComplexSubMessage(int32_t msgStart,
1158 const void *plNumber,
1159 const Formattable* arguments,
1160 const UnicodeString *argumentNames,
1161 int32_t cnt,
1162 AppendableWrapper& appendTo,
1163 UErrorCode& success) const {
1164 if (U_FAILURE(success)) {
1165 return;
1166 }
1167
1168 if (!MessageImpl::jdkAposMode(msgPattern)) {
1169 format(msgStart, plNumber, arguments, argumentNames, cnt, appendTo, NULL, success);
1170 return;
1171 }
1172
1173 // JDK compatibility mode: (see JDK MessageFormat.format() API docs)
1174 // - remove SKIP_SYNTAX; that is, remove half of the apostrophes
1175 // - if the result string contains an open curly brace '{' then
1176 // instantiate a temporary MessageFormat object and format again;
1177 // otherwise just append the result string
1178 const UnicodeString& msgString = msgPattern.getPatternString();
1179 UnicodeString sb;
1180 int32_t prevIndex = msgPattern.getPart(msgStart).getLimit();
1181 for (int32_t i = msgStart;;) {
1182 const MessagePattern::Part& part = msgPattern.getPart(++i);
1183 const UMessagePatternPartType type = part.getType();
1184 int32_t index = part.getIndex();
1185 if (type == UMSGPAT_PART_TYPE_MSG_LIMIT) {
1186 sb.append(msgString, prevIndex, index - prevIndex);
1187 break;
1188 } else if (type == UMSGPAT_PART_TYPE_REPLACE_NUMBER || type == UMSGPAT_PART_TYPE_SKIP_SYNTAX) {
1189 sb.append(msgString, prevIndex, index - prevIndex);
1190 if (type == UMSGPAT_PART_TYPE_REPLACE_NUMBER) {
1191 const PluralSelectorContext &pluralNumber =
1192 *static_cast<const PluralSelectorContext *>(plNumber);
1193 if(pluralNumber.forReplaceNumber) {
1194 // number-offset was already formatted.
1195 sb.append(pluralNumber.numberString);
1196 } else {
1197 const NumberFormat* nf = getDefaultNumberFormat(success);
1198 sb.append(nf->format(pluralNumber.number, sb, success));
1199 }
1200 }
1201 prevIndex = part.getLimit();
1202 } else if (type == UMSGPAT_PART_TYPE_ARG_START) {
1203 sb.append(msgString, prevIndex, index - prevIndex);
1204 prevIndex = index;
1205 i = msgPattern.getLimitPartIndex(i);
1206 index = msgPattern.getPart(i).getLimit();
1207 MessageImpl::appendReducedApostrophes(msgString, prevIndex, index, sb);
1208 prevIndex = index;
1209 }
1210 }
1211 if (sb.indexOf(LEFT_CURLY_BRACE) >= 0) {
1212 UnicodeString emptyPattern; // gcc 3.3.3 fails with "UnicodeString()" as the first parameter.
1213 MessageFormat subMsgFormat(emptyPattern, fLocale, success);
1214 subMsgFormat.applyPattern(sb, UMSGPAT_APOS_DOUBLE_REQUIRED, NULL, success);
1215 subMsgFormat.format(0, NULL, arguments, argumentNames, cnt, appendTo, NULL, success);
1216 } else {
1217 appendTo.append(sb);
1218 }
1219 }
1220
1221
getLiteralStringUntilNextArgument(int32_t from) const1222 UnicodeString MessageFormat::getLiteralStringUntilNextArgument(int32_t from) const {
1223 const UnicodeString& msgString=msgPattern.getPatternString();
1224 int32_t prevIndex=msgPattern.getPart(from).getLimit();
1225 UnicodeString b;
1226 for (int32_t i = from + 1; ; ++i) {
1227 const MessagePattern::Part& part = msgPattern.getPart(i);
1228 const UMessagePatternPartType type=part.getType();
1229 int32_t index=part.getIndex();
1230 b.append(msgString, prevIndex, index - prevIndex);
1231 if(type==UMSGPAT_PART_TYPE_ARG_START || type==UMSGPAT_PART_TYPE_MSG_LIMIT) {
1232 return b;
1233 }
1234 // Unexpected Part "part" in parsed message.
1235 U_ASSERT(type==UMSGPAT_PART_TYPE_SKIP_SYNTAX || type==UMSGPAT_PART_TYPE_INSERT_CHAR);
1236 prevIndex=part.getLimit();
1237 }
1238 }
1239
1240
updateMetaData(AppendableWrapper &,int32_t,FieldPosition *,const Formattable *) const1241 FieldPosition* MessageFormat::updateMetaData(AppendableWrapper& /*dest*/, int32_t /*prevLength*/,
1242 FieldPosition* /*fp*/, const Formattable* /*argId*/) const {
1243 // Unlike in Java, there are no field attributes defined for MessageFormat. Do nothing.
1244 return NULL;
1245 /*
1246 if (fp != NULL && Field.ARGUMENT.equals(fp.getFieldAttribute())) {
1247 fp->setBeginIndex(prevLength);
1248 fp->setEndIndex(dest.get_length());
1249 return NULL;
1250 }
1251 return fp;
1252 */
1253 }
1254
1255 int32_t
findOtherSubMessage(int32_t partIndex) const1256 MessageFormat::findOtherSubMessage(int32_t partIndex) const {
1257 int32_t count=msgPattern.countParts();
1258 const MessagePattern::Part *part = &msgPattern.getPart(partIndex);
1259 if(MessagePattern::Part::hasNumericValue(part->getType())) {
1260 ++partIndex;
1261 }
1262 // Iterate over (ARG_SELECTOR [ARG_INT|ARG_DOUBLE] message) tuples
1263 // until ARG_LIMIT or end of plural-only pattern.
1264 UnicodeString other(FALSE, OTHER_STRING, 5);
1265 do {
1266 part=&msgPattern.getPart(partIndex++);
1267 UMessagePatternPartType type=part->getType();
1268 if(type==UMSGPAT_PART_TYPE_ARG_LIMIT) {
1269 break;
1270 }
1271 U_ASSERT(type==UMSGPAT_PART_TYPE_ARG_SELECTOR);
1272 // part is an ARG_SELECTOR followed by an optional explicit value, and then a message
1273 if(msgPattern.partSubstringMatches(*part, other)) {
1274 return partIndex;
1275 }
1276 if(MessagePattern::Part::hasNumericValue(msgPattern.getPartType(partIndex))) {
1277 ++partIndex; // skip the numeric-value part of "=1" etc.
1278 }
1279 partIndex=msgPattern.getLimitPartIndex(partIndex);
1280 } while(++partIndex<count);
1281 return 0;
1282 }
1283
1284 int32_t
findFirstPluralNumberArg(int32_t msgStart,const UnicodeString & argName) const1285 MessageFormat::findFirstPluralNumberArg(int32_t msgStart, const UnicodeString &argName) const {
1286 for(int32_t i=msgStart+1;; ++i) {
1287 const MessagePattern::Part &part=msgPattern.getPart(i);
1288 UMessagePatternPartType type=part.getType();
1289 if(type==UMSGPAT_PART_TYPE_MSG_LIMIT) {
1290 return 0;
1291 }
1292 if(type==UMSGPAT_PART_TYPE_REPLACE_NUMBER) {
1293 return -1;
1294 }
1295 if(type==UMSGPAT_PART_TYPE_ARG_START) {
1296 UMessagePatternArgType argType=part.getArgType();
1297 if(!argName.isEmpty() && (argType==UMSGPAT_ARG_TYPE_NONE || argType==UMSGPAT_ARG_TYPE_SIMPLE)) {
1298 // ARG_NUMBER or ARG_NAME
1299 if(msgPattern.partSubstringMatches(msgPattern.getPart(i+1), argName)) {
1300 return i;
1301 }
1302 }
1303 i=msgPattern.getLimitPartIndex(i);
1304 }
1305 }
1306 }
1307
copyObjects(const MessageFormat & that,UErrorCode & ec)1308 void MessageFormat::copyObjects(const MessageFormat& that, UErrorCode& ec) {
1309 // Deep copy pointer fields.
1310 // We need not copy the formatAliases because they are re-filled
1311 // in each getFormats() call.
1312 // The defaultNumberFormat, defaultDateFormat and pluralProvider.rules
1313 // also get created on demand.
1314 argTypeCount = that.argTypeCount;
1315 if (argTypeCount > 0) {
1316 if (!allocateArgTypes(argTypeCount, ec)) {
1317 return;
1318 }
1319 uprv_memcpy(argTypes, that.argTypes, argTypeCount * sizeof(argTypes[0]));
1320 }
1321 if (cachedFormatters != NULL) {
1322 uhash_removeAll(cachedFormatters);
1323 }
1324 if (customFormatArgStarts != NULL) {
1325 uhash_removeAll(customFormatArgStarts);
1326 }
1327 if (that.cachedFormatters) {
1328 if (cachedFormatters == NULL) {
1329 cachedFormatters=uhash_open(uhash_hashLong, uhash_compareLong,
1330 equalFormatsForHash, &ec);
1331 if (U_FAILURE(ec)) {
1332 return;
1333 }
1334 uhash_setValueDeleter(cachedFormatters, uprv_deleteUObject);
1335 }
1336
1337 const int32_t count = uhash_count(that.cachedFormatters);
1338 int32_t pos, idx;
1339 for (idx = 0, pos = UHASH_FIRST; idx < count && U_SUCCESS(ec); ++idx) {
1340 const UHashElement* cur = uhash_nextElement(that.cachedFormatters, &pos);
1341 Format* newFormat = ((Format*)(cur->value.pointer))->clone();
1342 if (newFormat) {
1343 uhash_iput(cachedFormatters, cur->key.integer, newFormat, &ec);
1344 } else {
1345 ec = U_MEMORY_ALLOCATION_ERROR;
1346 return;
1347 }
1348 }
1349 }
1350 if (that.customFormatArgStarts) {
1351 if (customFormatArgStarts == NULL) {
1352 customFormatArgStarts=uhash_open(uhash_hashLong, uhash_compareLong,
1353 NULL, &ec);
1354 }
1355 const int32_t count = uhash_count(that.customFormatArgStarts);
1356 int32_t pos, idx;
1357 for (idx = 0, pos = UHASH_FIRST; idx < count && U_SUCCESS(ec); ++idx) {
1358 const UHashElement* cur = uhash_nextElement(that.customFormatArgStarts, &pos);
1359 uhash_iputi(customFormatArgStarts, cur->key.integer, cur->value.integer, &ec);
1360 }
1361 }
1362 }
1363
1364
1365 Formattable*
parse(int32_t msgStart,const UnicodeString & source,ParsePosition & pos,int32_t & count,UErrorCode & ec) const1366 MessageFormat::parse(int32_t msgStart,
1367 const UnicodeString& source,
1368 ParsePosition& pos,
1369 int32_t& count,
1370 UErrorCode& ec) const {
1371 count = 0;
1372 if (U_FAILURE(ec)) {
1373 pos.setErrorIndex(pos.getIndex());
1374 return NULL;
1375 }
1376 // parse() does not work with named arguments.
1377 if (msgPattern.hasNamedArguments()) {
1378 ec = U_ARGUMENT_TYPE_MISMATCH;
1379 pos.setErrorIndex(pos.getIndex());
1380 return NULL;
1381 }
1382 LocalArray<Formattable> resultArray(new Formattable[argTypeCount ? argTypeCount : 1]);
1383 const UnicodeString& msgString=msgPattern.getPatternString();
1384 int32_t prevIndex=msgPattern.getPart(msgStart).getLimit();
1385 int32_t sourceOffset = pos.getIndex();
1386 ParsePosition tempStatus(0);
1387
1388 for(int32_t i=msgStart+1; ; ++i) {
1389 UBool haveArgResult = FALSE;
1390 const MessagePattern::Part* part=&msgPattern.getPart(i);
1391 const UMessagePatternPartType type=part->getType();
1392 int32_t index=part->getIndex();
1393 // Make sure the literal string matches.
1394 int32_t len = index - prevIndex;
1395 if (len == 0 || (0 == msgString.compare(prevIndex, len, source, sourceOffset, len))) {
1396 sourceOffset += len;
1397 prevIndex += len;
1398 } else {
1399 pos.setErrorIndex(sourceOffset);
1400 return NULL; // leave index as is to signal error
1401 }
1402 if(type==UMSGPAT_PART_TYPE_MSG_LIMIT) {
1403 // Things went well! Done.
1404 pos.setIndex(sourceOffset);
1405 return resultArray.orphan();
1406 }
1407 if(type==UMSGPAT_PART_TYPE_SKIP_SYNTAX || type==UMSGPAT_PART_TYPE_INSERT_CHAR) {
1408 prevIndex=part->getLimit();
1409 continue;
1410 }
1411 // We do not support parsing Plural formats. (No REPLACE_NUMBER here.)
1412 // Unexpected Part "part" in parsed message.
1413 U_ASSERT(type==UMSGPAT_PART_TYPE_ARG_START);
1414 int32_t argLimit=msgPattern.getLimitPartIndex(i);
1415
1416 UMessagePatternArgType argType=part->getArgType();
1417 part=&msgPattern.getPart(++i);
1418 int32_t argNumber = part->getValue(); // ARG_NUMBER
1419 UnicodeString key;
1420 ++i;
1421 const Format* formatter = NULL;
1422 Formattable& argResult = resultArray[argNumber];
1423
1424 if(cachedFormatters!=NULL && (formatter = getCachedFormatter(i - 2))!=NULL) {
1425 // Just parse using the formatter.
1426 tempStatus.setIndex(sourceOffset);
1427 formatter->parseObject(source, argResult, tempStatus);
1428 if (tempStatus.getIndex() == sourceOffset) {
1429 pos.setErrorIndex(sourceOffset);
1430 return NULL; // leave index as is to signal error
1431 }
1432 sourceOffset = tempStatus.getIndex();
1433 haveArgResult = TRUE;
1434 } else if(
1435 argType==UMSGPAT_ARG_TYPE_NONE || (cachedFormatters && uhash_iget(cachedFormatters, i -2))) {
1436 // We arrive here if getCachedFormatter returned NULL, but there was actually an element in the hash table.
1437 // This can only happen if the hash table contained a DummyFormat, so the if statement above is a check
1438 // for the hash table containind DummyFormat.
1439
1440 // Match as a string.
1441 // if at end, use longest possible match
1442 // otherwise uses first match to intervening string
1443 // does NOT recursively try all possibilities
1444 UnicodeString stringAfterArgument = getLiteralStringUntilNextArgument(argLimit);
1445 int32_t next;
1446 if (!stringAfterArgument.isEmpty()) {
1447 next = source.indexOf(stringAfterArgument, sourceOffset);
1448 } else {
1449 next = source.length();
1450 }
1451 if (next < 0) {
1452 pos.setErrorIndex(sourceOffset);
1453 return NULL; // leave index as is to signal error
1454 } else {
1455 UnicodeString strValue(source.tempSubString(sourceOffset, next - sourceOffset));
1456 UnicodeString compValue;
1457 compValue.append(LEFT_CURLY_BRACE);
1458 itos(argNumber, compValue);
1459 compValue.append(RIGHT_CURLY_BRACE);
1460 if (0 != strValue.compare(compValue)) {
1461 argResult.setString(strValue);
1462 haveArgResult = TRUE;
1463 }
1464 sourceOffset = next;
1465 }
1466 } else if(argType==UMSGPAT_ARG_TYPE_CHOICE) {
1467 tempStatus.setIndex(sourceOffset);
1468 double choiceResult = ChoiceFormat::parseArgument(msgPattern, i, source, tempStatus);
1469 if (tempStatus.getIndex() == sourceOffset) {
1470 pos.setErrorIndex(sourceOffset);
1471 return NULL; // leave index as is to signal error
1472 }
1473 argResult.setDouble(choiceResult);
1474 haveArgResult = TRUE;
1475 sourceOffset = tempStatus.getIndex();
1476 } else if(UMSGPAT_ARG_TYPE_HAS_PLURAL_STYLE(argType) || argType==UMSGPAT_ARG_TYPE_SELECT) {
1477 // Parsing not supported.
1478 ec = U_UNSUPPORTED_ERROR;
1479 return NULL;
1480 } else {
1481 // This should never happen.
1482 ec = U_INTERNAL_PROGRAM_ERROR;
1483 return NULL;
1484 }
1485 if (haveArgResult && count <= argNumber) {
1486 count = argNumber + 1;
1487 }
1488 prevIndex=msgPattern.getPart(argLimit).getLimit();
1489 i=argLimit;
1490 }
1491 }
1492 // -------------------------------------
1493 // Parses the source pattern and returns the Formattable objects array,
1494 // the array count and the ending parse position. The caller of this method
1495 // owns the array.
1496
1497 Formattable*
parse(const UnicodeString & source,ParsePosition & pos,int32_t & count) const1498 MessageFormat::parse(const UnicodeString& source,
1499 ParsePosition& pos,
1500 int32_t& count) const {
1501 UErrorCode ec = U_ZERO_ERROR;
1502 return parse(0, source, pos, count, ec);
1503 }
1504
1505 // -------------------------------------
1506 // Parses the source string and returns the array of
1507 // Formattable objects and the array count. The caller
1508 // owns the returned array.
1509
1510 Formattable*
parse(const UnicodeString & source,int32_t & cnt,UErrorCode & success) const1511 MessageFormat::parse(const UnicodeString& source,
1512 int32_t& cnt,
1513 UErrorCode& success) const
1514 {
1515 if (msgPattern.hasNamedArguments()) {
1516 success = U_ARGUMENT_TYPE_MISMATCH;
1517 return NULL;
1518 }
1519 ParsePosition status(0);
1520 // Calls the actual implementation method and starts
1521 // from zero offset of the source text.
1522 Formattable* result = parse(source, status, cnt);
1523 if (status.getIndex() == 0) {
1524 success = U_MESSAGE_PARSE_ERROR;
1525 delete[] result;
1526 return NULL;
1527 }
1528 return result;
1529 }
1530
1531 // -------------------------------------
1532 // Parses the source text and copy into the result buffer.
1533
1534 void
parseObject(const UnicodeString & source,Formattable & result,ParsePosition & status) const1535 MessageFormat::parseObject( const UnicodeString& source,
1536 Formattable& result,
1537 ParsePosition& status) const
1538 {
1539 int32_t cnt = 0;
1540 Formattable* tmpResult = parse(source, status, cnt);
1541 if (tmpResult != NULL)
1542 result.adoptArray(tmpResult, cnt);
1543 }
1544
1545 UnicodeString
autoQuoteApostrophe(const UnicodeString & pattern,UErrorCode & status)1546 MessageFormat::autoQuoteApostrophe(const UnicodeString& pattern, UErrorCode& status) {
1547 UnicodeString result;
1548 if (U_SUCCESS(status)) {
1549 int32_t plen = pattern.length();
1550 const UChar* pat = pattern.getBuffer();
1551 int32_t blen = plen * 2 + 1; // space for null termination, convenience
1552 UChar* buf = result.getBuffer(blen);
1553 if (buf == NULL) {
1554 status = U_MEMORY_ALLOCATION_ERROR;
1555 } else {
1556 int32_t len = umsg_autoQuoteApostrophe(pat, plen, buf, blen, &status);
1557 result.releaseBuffer(U_SUCCESS(status) ? len : 0);
1558 }
1559 }
1560 if (U_FAILURE(status)) {
1561 result.setToBogus();
1562 }
1563 return result;
1564 }
1565
1566 // -------------------------------------
1567
makeRBNF(URBNFRuleSetTag tag,const Locale & locale,const UnicodeString & defaultRuleSet,UErrorCode & ec)1568 static Format* makeRBNF(URBNFRuleSetTag tag, const Locale& locale, const UnicodeString& defaultRuleSet, UErrorCode& ec) {
1569 RuleBasedNumberFormat* fmt = new RuleBasedNumberFormat(tag, locale, ec);
1570 if (fmt == NULL) {
1571 ec = U_MEMORY_ALLOCATION_ERROR;
1572 } else if (U_SUCCESS(ec) && defaultRuleSet.length() > 0) {
1573 UErrorCode localStatus = U_ZERO_ERROR; // ignore unrecognized default rule set
1574 fmt->setDefaultRuleSet(defaultRuleSet, localStatus);
1575 }
1576 return fmt;
1577 }
1578
cacheExplicitFormats(UErrorCode & status)1579 void MessageFormat::cacheExplicitFormats(UErrorCode& status) {
1580 if (U_FAILURE(status)) {
1581 return;
1582 }
1583
1584 if (cachedFormatters != NULL) {
1585 uhash_removeAll(cachedFormatters);
1586 }
1587 if (customFormatArgStarts != NULL) {
1588 uhash_removeAll(customFormatArgStarts);
1589 }
1590
1591 // The last two "parts" can at most be ARG_LIMIT and MSG_LIMIT
1592 // which we need not examine.
1593 int32_t limit = msgPattern.countParts() - 2;
1594 argTypeCount = 0;
1595 // We also need not look at the first two "parts"
1596 // (at most MSG_START and ARG_START) in this loop.
1597 // We determine the argTypeCount first so that we can allocateArgTypes
1598 // so that the next loop can set argTypes[argNumber].
1599 // (This is for the C API which needs the argTypes to read its va_arg list.)
1600 for (int32_t i = 2; i < limit && U_SUCCESS(status); ++i) {
1601 const MessagePattern::Part& part = msgPattern.getPart(i);
1602 if (part.getType() == UMSGPAT_PART_TYPE_ARG_NUMBER) {
1603 const int argNumber = part.getValue();
1604 if (argNumber >= argTypeCount) {
1605 argTypeCount = argNumber + 1;
1606 }
1607 }
1608 }
1609 if (!allocateArgTypes(argTypeCount, status)) {
1610 return;
1611 }
1612 // Set all argTypes to kObject, as a "none" value, for lack of any better value.
1613 // We never use kObject for real arguments.
1614 // We use it as "no argument yet" for the check for hasArgTypeConflicts.
1615 for (int32_t i = 0; i < argTypeCount; ++i) {
1616 argTypes[i] = Formattable::kObject;
1617 }
1618 hasArgTypeConflicts = FALSE;
1619
1620 // This loop starts at part index 1 because we do need to examine
1621 // ARG_START parts. (But we can ignore the MSG_START.)
1622 for (int32_t i = 1; i < limit && U_SUCCESS(status); ++i) {
1623 const MessagePattern::Part* part = &msgPattern.getPart(i);
1624 if (part->getType() != UMSGPAT_PART_TYPE_ARG_START) {
1625 continue;
1626 }
1627 UMessagePatternArgType argType = part->getArgType();
1628
1629 int32_t argNumber = -1;
1630 part = &msgPattern.getPart(i + 1);
1631 if (part->getType() == UMSGPAT_PART_TYPE_ARG_NUMBER) {
1632 argNumber = part->getValue();
1633 }
1634 Formattable::Type formattableType;
1635
1636 switch (argType) {
1637 case UMSGPAT_ARG_TYPE_NONE:
1638 formattableType = Formattable::kString;
1639 break;
1640 case UMSGPAT_ARG_TYPE_SIMPLE: {
1641 int32_t index = i;
1642 i += 2;
1643 UnicodeString explicitType = msgPattern.getSubstring(msgPattern.getPart(i++));
1644 UnicodeString style;
1645 if ((part = &msgPattern.getPart(i))->getType() == UMSGPAT_PART_TYPE_ARG_STYLE) {
1646 style = msgPattern.getSubstring(*part);
1647 ++i;
1648 }
1649 UParseError parseError;
1650 Format* formatter = createAppropriateFormat(explicitType, style, formattableType, parseError, status);
1651 setArgStartFormat(index, formatter, status);
1652 break;
1653 }
1654 case UMSGPAT_ARG_TYPE_CHOICE:
1655 case UMSGPAT_ARG_TYPE_PLURAL:
1656 case UMSGPAT_ARG_TYPE_SELECTORDINAL:
1657 formattableType = Formattable::kDouble;
1658 break;
1659 case UMSGPAT_ARG_TYPE_SELECT:
1660 formattableType = Formattable::kString;
1661 break;
1662 default:
1663 status = U_INTERNAL_PROGRAM_ERROR; // Should be unreachable.
1664 formattableType = Formattable::kString;
1665 break;
1666 }
1667 if (argNumber != -1) {
1668 if (argTypes[argNumber] != Formattable::kObject && argTypes[argNumber] != formattableType) {
1669 hasArgTypeConflicts = TRUE;
1670 }
1671 argTypes[argNumber] = formattableType;
1672 }
1673 }
1674 }
1675
1676
createAppropriateFormat(UnicodeString & type,UnicodeString & style,Formattable::Type & formattableType,UParseError & parseError,UErrorCode & ec)1677 Format* MessageFormat::createAppropriateFormat(UnicodeString& type, UnicodeString& style,
1678 Formattable::Type& formattableType, UParseError& parseError,
1679 UErrorCode& ec) {
1680 if (U_FAILURE(ec)) {
1681 return NULL;
1682 }
1683 Format* fmt = NULL;
1684 int32_t typeID, styleID;
1685 DateFormat::EStyle date_style;
1686
1687 switch (typeID = findKeyword(type, TYPE_IDS)) {
1688 case 0: // number
1689 formattableType = Formattable::kDouble;
1690 switch (findKeyword(style, NUMBER_STYLE_IDS)) {
1691 case 0: // default
1692 fmt = NumberFormat::createInstance(fLocale, ec);
1693 break;
1694 case 1: // currency
1695 fmt = NumberFormat::createCurrencyInstance(fLocale, ec);
1696 break;
1697 case 2: // percent
1698 fmt = NumberFormat::createPercentInstance(fLocale, ec);
1699 break;
1700 case 3: // integer
1701 formattableType = Formattable::kLong;
1702 fmt = createIntegerFormat(fLocale, ec);
1703 break;
1704 default: // pattern or skeleton
1705 int32_t i = 0;
1706 for (; PatternProps::isWhiteSpace(style.charAt(i)); i++);
1707 if (style.compare(i, 2, u"::", 0, 2) == 0) {
1708 // Skeleton
1709 UnicodeString skeleton = style.tempSubString(i + 2);
1710 fmt = number::NumberFormatter::forSkeleton(skeleton, ec).locale(fLocale).toFormat(ec);
1711 } else {
1712 // Pattern
1713 fmt = NumberFormat::createInstance(fLocale, ec);
1714 if (fmt) {
1715 auto* decfmt = dynamic_cast<DecimalFormat*>(fmt);
1716 if (decfmt != nullptr) {
1717 decfmt->applyPattern(style, parseError, ec);
1718 }
1719 }
1720 }
1721 break;
1722 }
1723 break;
1724
1725 case 1: // date
1726 case 2: // time
1727 formattableType = Formattable::kDate;
1728 styleID = findKeyword(style, DATE_STYLE_IDS);
1729 date_style = (styleID >= 0) ? DATE_STYLES[styleID] : DateFormat::kDefault;
1730
1731 if (typeID == 1) {
1732 fmt = DateFormat::createDateInstance(date_style, fLocale);
1733 } else {
1734 fmt = DateFormat::createTimeInstance(date_style, fLocale);
1735 }
1736
1737 if (styleID < 0 && fmt != NULL) {
1738 SimpleDateFormat* sdtfmt = dynamic_cast<SimpleDateFormat*>(fmt);
1739 if (sdtfmt != NULL) {
1740 sdtfmt->applyPattern(style);
1741 }
1742 }
1743 break;
1744
1745 case 3: // spellout
1746 formattableType = Formattable::kDouble;
1747 fmt = makeRBNF(URBNF_SPELLOUT, fLocale, style, ec);
1748 break;
1749 case 4: // ordinal
1750 formattableType = Formattable::kDouble;
1751 fmt = makeRBNF(URBNF_ORDINAL, fLocale, style, ec);
1752 break;
1753 case 5: // duration
1754 formattableType = Formattable::kDouble;
1755 fmt = makeRBNF(URBNF_DURATION, fLocale, style, ec);
1756 break;
1757 default:
1758 formattableType = Formattable::kString;
1759 ec = U_ILLEGAL_ARGUMENT_ERROR;
1760 break;
1761 }
1762
1763 return fmt;
1764 }
1765
1766
1767 //-------------------------------------
1768 // Finds the string, s, in the string array, list.
findKeyword(const UnicodeString & s,const UChar * const * list)1769 int32_t MessageFormat::findKeyword(const UnicodeString& s,
1770 const UChar * const *list)
1771 {
1772 if (s.isEmpty()) {
1773 return 0; // default
1774 }
1775
1776 int32_t length = s.length();
1777 const UChar *ps = PatternProps::trimWhiteSpace(s.getBuffer(), length);
1778 UnicodeString buffer(FALSE, ps, length);
1779 // Trims the space characters and turns all characters
1780 // in s to lower case.
1781 buffer.toLower("");
1782 for (int32_t i = 0; list[i]; ++i) {
1783 if (!buffer.compare(list[i], u_strlen(list[i]))) {
1784 return i;
1785 }
1786 }
1787 return -1;
1788 }
1789
1790 /**
1791 * Convenience method that ought to be in NumberFormat
1792 */
1793 NumberFormat*
createIntegerFormat(const Locale & locale,UErrorCode & status) const1794 MessageFormat::createIntegerFormat(const Locale& locale, UErrorCode& status) const {
1795 NumberFormat *temp = NumberFormat::createInstance(locale, status);
1796 DecimalFormat *temp2;
1797 if (temp != NULL && (temp2 = dynamic_cast<DecimalFormat*>(temp)) != NULL) {
1798 temp2->setMaximumFractionDigits(0);
1799 temp2->setDecimalSeparatorAlwaysShown(FALSE);
1800 temp2->setParseIntegerOnly(TRUE);
1801 }
1802
1803 return temp;
1804 }
1805
1806 /**
1807 * Return the default number format. Used to format a numeric
1808 * argument when subformats[i].format is NULL. Returns NULL
1809 * on failure.
1810 *
1811 * Semantically const but may modify *this.
1812 */
getDefaultNumberFormat(UErrorCode & ec) const1813 const NumberFormat* MessageFormat::getDefaultNumberFormat(UErrorCode& ec) const {
1814 if (defaultNumberFormat == NULL) {
1815 MessageFormat* t = (MessageFormat*) this;
1816 t->defaultNumberFormat = NumberFormat::createInstance(fLocale, ec);
1817 if (U_FAILURE(ec)) {
1818 delete t->defaultNumberFormat;
1819 t->defaultNumberFormat = NULL;
1820 } else if (t->defaultNumberFormat == NULL) {
1821 ec = U_MEMORY_ALLOCATION_ERROR;
1822 }
1823 }
1824 return defaultNumberFormat;
1825 }
1826
1827 /**
1828 * Return the default date format. Used to format a date
1829 * argument when subformats[i].format is NULL. Returns NULL
1830 * on failure.
1831 *
1832 * Semantically const but may modify *this.
1833 */
getDefaultDateFormat(UErrorCode & ec) const1834 const DateFormat* MessageFormat::getDefaultDateFormat(UErrorCode& ec) const {
1835 if (defaultDateFormat == NULL) {
1836 MessageFormat* t = (MessageFormat*) this;
1837 t->defaultDateFormat = DateFormat::createDateTimeInstance(DateFormat::kShort, DateFormat::kShort, fLocale);
1838 if (t->defaultDateFormat == NULL) {
1839 ec = U_MEMORY_ALLOCATION_ERROR;
1840 }
1841 }
1842 return defaultDateFormat;
1843 }
1844
1845 UBool
usesNamedArguments() const1846 MessageFormat::usesNamedArguments() const {
1847 return msgPattern.hasNamedArguments();
1848 }
1849
1850 int32_t
getArgTypeCount() const1851 MessageFormat::getArgTypeCount() const {
1852 return argTypeCount;
1853 }
1854
equalFormats(const void * left,const void * right)1855 UBool MessageFormat::equalFormats(const void* left, const void* right) {
1856 return *(const Format*)left==*(const Format*)right;
1857 }
1858
1859
operator ==(const Format &) const1860 UBool MessageFormat::DummyFormat::operator==(const Format&) const {
1861 return TRUE;
1862 }
1863
clone() const1864 Format* MessageFormat::DummyFormat::clone() const {
1865 return new DummyFormat();
1866 }
1867
format(const Formattable &,UnicodeString & appendTo,UErrorCode & status) const1868 UnicodeString& MessageFormat::DummyFormat::format(const Formattable&,
1869 UnicodeString& appendTo,
1870 UErrorCode& status) const {
1871 if (U_SUCCESS(status)) {
1872 status = U_UNSUPPORTED_ERROR;
1873 }
1874 return appendTo;
1875 }
1876
format(const Formattable &,UnicodeString & appendTo,FieldPosition &,UErrorCode & status) const1877 UnicodeString& MessageFormat::DummyFormat::format(const Formattable&,
1878 UnicodeString& appendTo,
1879 FieldPosition&,
1880 UErrorCode& status) const {
1881 if (U_SUCCESS(status)) {
1882 status = U_UNSUPPORTED_ERROR;
1883 }
1884 return appendTo;
1885 }
1886
format(const Formattable &,UnicodeString & appendTo,FieldPositionIterator *,UErrorCode & status) const1887 UnicodeString& MessageFormat::DummyFormat::format(const Formattable&,
1888 UnicodeString& appendTo,
1889 FieldPositionIterator*,
1890 UErrorCode& status) const {
1891 if (U_SUCCESS(status)) {
1892 status = U_UNSUPPORTED_ERROR;
1893 }
1894 return appendTo;
1895 }
1896
parseObject(const UnicodeString &,Formattable &,ParsePosition &) const1897 void MessageFormat::DummyFormat::parseObject(const UnicodeString&,
1898 Formattable&,
1899 ParsePosition& ) const {
1900 }
1901
1902
FormatNameEnumeration(UVector * fNameList,UErrorCode &)1903 FormatNameEnumeration::FormatNameEnumeration(UVector *fNameList, UErrorCode& /*status*/) {
1904 pos=0;
1905 fFormatNames = fNameList;
1906 }
1907
1908 const UnicodeString*
snext(UErrorCode & status)1909 FormatNameEnumeration::snext(UErrorCode& status) {
1910 if (U_SUCCESS(status) && pos < fFormatNames->size()) {
1911 return (const UnicodeString*)fFormatNames->elementAt(pos++);
1912 }
1913 return NULL;
1914 }
1915
1916 void
reset(UErrorCode &)1917 FormatNameEnumeration::reset(UErrorCode& /*status*/) {
1918 pos=0;
1919 }
1920
1921 int32_t
count(UErrorCode &) const1922 FormatNameEnumeration::count(UErrorCode& /*status*/) const {
1923 return (fFormatNames==NULL) ? 0 : fFormatNames->size();
1924 }
1925
~FormatNameEnumeration()1926 FormatNameEnumeration::~FormatNameEnumeration() {
1927 delete fFormatNames;
1928 }
1929
PluralSelectorProvider(const MessageFormat & mf,UPluralType t)1930 MessageFormat::PluralSelectorProvider::PluralSelectorProvider(const MessageFormat &mf, UPluralType t)
1931 : msgFormat(mf), rules(NULL), type(t) {
1932 }
1933
~PluralSelectorProvider()1934 MessageFormat::PluralSelectorProvider::~PluralSelectorProvider() {
1935 delete rules;
1936 }
1937
select(void * ctx,double number,UErrorCode & ec) const1938 UnicodeString MessageFormat::PluralSelectorProvider::select(void *ctx, double number,
1939 UErrorCode& ec) const {
1940 if (U_FAILURE(ec)) {
1941 return UnicodeString(FALSE, OTHER_STRING, 5);
1942 }
1943 MessageFormat::PluralSelectorProvider* t = const_cast<MessageFormat::PluralSelectorProvider*>(this);
1944 if(rules == NULL) {
1945 t->rules = PluralRules::forLocale(msgFormat.fLocale, type, ec);
1946 if (U_FAILURE(ec)) {
1947 return UnicodeString(FALSE, OTHER_STRING, 5);
1948 }
1949 }
1950 // Select a sub-message according to how the number is formatted,
1951 // which is specified in the selected sub-message.
1952 // We avoid this circle by looking at how
1953 // the number is formatted in the "other" sub-message
1954 // which must always be present and usually contains the number.
1955 // Message authors should be consistent across sub-messages.
1956 PluralSelectorContext &context = *static_cast<PluralSelectorContext *>(ctx);
1957 int32_t otherIndex = msgFormat.findOtherSubMessage(context.startIndex);
1958 context.numberArgIndex = msgFormat.findFirstPluralNumberArg(otherIndex, context.argName);
1959 if(context.numberArgIndex > 0 && msgFormat.cachedFormatters != NULL) {
1960 context.formatter =
1961 (const Format*)uhash_iget(msgFormat.cachedFormatters, context.numberArgIndex);
1962 }
1963 if(context.formatter == NULL) {
1964 context.formatter = msgFormat.getDefaultNumberFormat(ec);
1965 context.forReplaceNumber = TRUE;
1966 }
1967 if (context.number.getDouble(ec) != number) {
1968 ec = U_INTERNAL_PROGRAM_ERROR;
1969 return UnicodeString(FALSE, OTHER_STRING, 5);
1970 }
1971 context.formatter->format(context.number, context.numberString, ec);
1972 auto* decFmt = dynamic_cast<const DecimalFormat *>(context.formatter);
1973 if(decFmt != NULL) {
1974 number::impl::DecimalQuantity dq;
1975 decFmt->formatToDecimalQuantity(context.number, dq, ec);
1976 if (U_FAILURE(ec)) {
1977 return UnicodeString(FALSE, OTHER_STRING, 5);
1978 }
1979 return rules->select(dq);
1980 } else {
1981 return rules->select(number);
1982 }
1983 }
1984
reset()1985 void MessageFormat::PluralSelectorProvider::reset() {
1986 delete rules;
1987 rules = NULL;
1988 }
1989
1990
1991 U_NAMESPACE_END
1992
1993 #endif /* #if !UCONFIG_NO_FORMATTING */
1994
1995 //eof
1996