1 /******************************************************************** 2 * COPYRIGHT: 3 * Copyright (c) 1997-2010, International Business Machines Corporation and 4 * others. All Rights Reserved. 5 ******************************************************************** 6 * 7 * File MSGFMT.CPP 8 * 9 * Modification History: 10 * 11 * Date Name Description 12 * 02/19/97 aliu Converted from java. 13 * 03/20/97 helena Finished first cut of implementation. 14 * 04/10/97 aliu Made to work on AIX. Added stoi to replace wtoi. 15 * 06/11/97 helena Fixed addPattern to take the pattern correctly. 16 * 06/17/97 helena Fixed the getPattern to return the correct pattern. 17 * 07/09/97 helena Made ParsePosition into a class. 18 * 02/22/99 stephen Removed character literals for EBCDIC safety 19 * 11/01/09 kirtig Added SelectFormat 20 ********************************************************************/ 21 22 #include "unicode/utypes.h" 23 24 #if !UCONFIG_NO_FORMATTING 25 26 #include "unicode/msgfmt.h" 27 #include "unicode/decimfmt.h" 28 #include "unicode/datefmt.h" 29 #include "unicode/smpdtfmt.h" 30 #include "unicode/choicfmt.h" 31 #include "unicode/plurfmt.h" 32 #include "unicode/selfmt.h" 33 #include "unicode/ustring.h" 34 #include "unicode/ucnv_err.h" 35 #include "unicode/uchar.h" 36 #include "unicode/umsg.h" 37 #include "unicode/rbnf.h" 38 #include "cmemory.h" 39 #include "msgfmt_impl.h" 40 #include "util.h" 41 #include "uassert.h" 42 #include "ustrfmt.h" 43 #include "uvector.h" 44 45 // ***************************************************************************** 46 // class MessageFormat 47 // ***************************************************************************** 48 49 #define COMMA ((UChar)0x002C) 50 #define SINGLE_QUOTE ((UChar)0x0027) 51 #define LEFT_CURLY_BRACE ((UChar)0x007B) 52 #define RIGHT_CURLY_BRACE ((UChar)0x007D) 53 54 //--------------------------------------- 55 // static data 56 57 static const UChar ID_EMPTY[] = { 58 0 /* empty string, used for default so that null can mark end of list */ 59 }; 60 61 static const UChar ID_NUMBER[] = { 62 0x6E, 0x75, 0x6D, 0x62, 0x65, 0x72, 0 /* "number" */ 63 }; 64 static const UChar ID_DATE[] = { 65 0x64, 0x61, 0x74, 0x65, 0 /* "date" */ 66 }; 67 static const UChar ID_TIME[] = { 68 0x74, 0x69, 0x6D, 0x65, 0 /* "time" */ 69 }; 70 static const UChar ID_CHOICE[] = { 71 0x63, 0x68, 0x6F, 0x69, 0x63, 0x65, 0 /* "choice" */ 72 }; 73 static const UChar ID_SPELLOUT[] = { 74 0x73, 0x70, 0x65, 0x6c, 0x6c, 0x6f, 0x75, 0x74, 0 /* "spellout" */ 75 }; 76 static const UChar ID_ORDINAL[] = { 77 0x6f, 0x72, 0x64, 0x69, 0x6e, 0x61, 0x6c, 0 /* "ordinal" */ 78 }; 79 static const UChar ID_DURATION[] = { 80 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0 /* "duration" */ 81 }; 82 static const UChar ID_PLURAL[] = { 83 0x70, 0x6c, 0x75, 0x72, 0x61, 0x6c, 0 /* "plural" */ 84 }; 85 static const UChar ID_SELECT[] = { 86 0x73, 0x65, 0x6C, 0x65, 0x63, 0x74, 0 /* "select" */ 87 }; 88 89 // MessageFormat Type List Number, Date, Time or Choice 90 static const UChar * const TYPE_IDS[] = { 91 ID_EMPTY, 92 ID_NUMBER, 93 ID_DATE, 94 ID_TIME, 95 ID_CHOICE, 96 ID_SPELLOUT, 97 ID_ORDINAL, 98 ID_DURATION, 99 ID_PLURAL, 100 ID_SELECT, 101 NULL, 102 }; 103 104 static const UChar ID_CURRENCY[] = { 105 0x63, 0x75, 0x72, 0x72, 0x65, 0x6E, 0x63, 0x79, 0 /* "currency" */ 106 }; 107 static const UChar ID_PERCENT[] = { 108 0x70, 0x65, 0x72, 0x63, 0x65, 0x6E, 0x74, 0 /* "percent" */ 109 }; 110 static const UChar ID_INTEGER[] = { 111 0x69, 0x6E, 0x74, 0x65, 0x67, 0x65, 0x72, 0 /* "integer" */ 112 }; 113 114 // NumberFormat modifier list, default, currency, percent or integer 115 static const UChar * const NUMBER_STYLE_IDS[] = { 116 ID_EMPTY, 117 ID_CURRENCY, 118 ID_PERCENT, 119 ID_INTEGER, 120 NULL, 121 }; 122 123 static const UChar ID_SHORT[] = { 124 0x73, 0x68, 0x6F, 0x72, 0x74, 0 /* "short" */ 125 }; 126 static const UChar ID_MEDIUM[] = { 127 0x6D, 0x65, 0x64, 0x69, 0x75, 0x6D, 0 /* "medium" */ 128 }; 129 static const UChar ID_LONG[] = { 130 0x6C, 0x6F, 0x6E, 0x67, 0 /* "long" */ 131 }; 132 static const UChar ID_FULL[] = { 133 0x66, 0x75, 0x6C, 0x6C, 0 /* "full" */ 134 }; 135 136 // DateFormat modifier list, default, short, medium, long or full 137 static const UChar * const DATE_STYLE_IDS[] = { 138 ID_EMPTY, 139 ID_SHORT, 140 ID_MEDIUM, 141 ID_LONG, 142 ID_FULL, 143 NULL, 144 }; 145 146 static const U_NAMESPACE_QUALIFIER DateFormat::EStyle DATE_STYLES[] = { 147 U_NAMESPACE_QUALIFIER DateFormat::kDefault, 148 U_NAMESPACE_QUALIFIER DateFormat::kShort, 149 U_NAMESPACE_QUALIFIER DateFormat::kMedium, 150 U_NAMESPACE_QUALIFIER DateFormat::kLong, 151 U_NAMESPACE_QUALIFIER DateFormat::kFull, 152 }; 153 154 static const int32_t DEFAULT_INITIAL_CAPACITY = 10; 155 156 U_NAMESPACE_BEGIN 157 158 // ------------------------------------- 159 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(MessageFormat) 160 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FormatNameEnumeration) 161 162 //-------------------------------------------------------------------- 163 164 /** 165 * Convert a string to an unsigned decimal, ignoring rule whitespace. 166 * @return a non-negative number if successful, or a negative number 167 * upon failure. 168 */ 169 static int32_t stou(const UnicodeString& string) { 170 int32_t n = 0; 171 int32_t count = 0; 172 UChar32 c; 173 for (int32_t i=0; i<string.length(); i+=U16_LENGTH(c)) { 174 c = string.char32At(i); 175 if (uprv_isRuleWhiteSpace(c)) { 176 continue; 177 } 178 int32_t d = u_digit(c, 10); 179 if (d < 0 || ++count > 10) { 180 return -1; 181 } 182 n = 10*n + d; 183 } 184 return n; 185 } 186 187 /** 188 * Convert an integer value to a string and append the result to 189 * the given UnicodeString. 190 */ 191 static UnicodeString& itos(int32_t i, UnicodeString& appendTo) { 192 UChar temp[16]; 193 uprv_itou(temp,16,i,10,0); // 10 == radix 194 appendTo.append(temp); 195 return appendTo; 196 } 197 198 /* 199 * A structure representing one subformat of this MessageFormat. 200 * Each subformat has a Format object, an offset into the plain 201 * pattern text fPattern, and an argument number. The argument 202 * number corresponds to the array of arguments to be formatted. 203 * @internal 204 */ 205 class MessageFormat::Subformat : public UMemory { 206 public: 207 /** 208 * @internal 209 */ 210 Format* format; // formatter 211 /** 212 * @internal 213 */ 214 int32_t offset; // offset into fPattern 215 /** 216 * @internal 217 */ 218 // TODO (claireho) or save the number to argName and use itos to convert to number.=> we need this number 219 int32_t argNum; // 0-based argument number 220 /** 221 * @internal 222 */ 223 UnicodeString* argName; // argument name or number 224 225 /** 226 * Clone that.format and assign it to this.format 227 * Do NOT delete this.format 228 * @internal 229 */ 230 Subformat& operator=(const Subformat& that) { 231 if (this != &that) { 232 format = that.format ? that.format->clone() : NULL; 233 offset = that.offset; 234 argNum = that.argNum; 235 argName = (that.argNum==-1) ? new UnicodeString(*that.argName): NULL; 236 } 237 return *this; 238 } 239 240 /** 241 * @internal 242 */ 243 UBool operator==(const Subformat& that) const { 244 // Do cheap comparisons first 245 return offset == that.offset && 246 argNum == that.argNum && 247 ((argName == that.argName) || 248 (*argName == *that.argName)) && 249 ((format == that.format) || // handles NULL 250 (*format == *that.format)); 251 } 252 253 /** 254 * @internal 255 */ 256 UBool operator!=(const Subformat& that) const { 257 return !operator==(that); 258 } 259 }; 260 261 // ------------------------------------- 262 // Creates a MessageFormat instance based on the pattern. 263 264 MessageFormat::MessageFormat(const UnicodeString& pattern, 265 UErrorCode& success) 266 : fLocale(Locale::getDefault()), // Uses the default locale 267 formatAliases(NULL), 268 formatAliasesCapacity(0), 269 idStart(UCHAR_ID_START), 270 idContinue(UCHAR_ID_CONTINUE), 271 subformats(NULL), 272 subformatCount(0), 273 subformatCapacity(0), 274 argTypes(NULL), 275 argTypeCount(0), 276 argTypeCapacity(0), 277 isArgNumeric(TRUE), 278 defaultNumberFormat(NULL), 279 defaultDateFormat(NULL) 280 { 281 if (!allocateSubformats(DEFAULT_INITIAL_CAPACITY) || 282 !allocateArgTypes(DEFAULT_INITIAL_CAPACITY)) { 283 success = U_MEMORY_ALLOCATION_ERROR; 284 return; 285 } 286 applyPattern(pattern, success); 287 setLocaleIDs(fLocale.getName(), fLocale.getName()); 288 } 289 290 MessageFormat::MessageFormat(const UnicodeString& pattern, 291 const Locale& newLocale, 292 UErrorCode& success) 293 : fLocale(newLocale), 294 formatAliases(NULL), 295 formatAliasesCapacity(0), 296 idStart(UCHAR_ID_START), 297 idContinue(UCHAR_ID_CONTINUE), 298 subformats(NULL), 299 subformatCount(0), 300 subformatCapacity(0), 301 argTypes(NULL), 302 argTypeCount(0), 303 argTypeCapacity(0), 304 isArgNumeric(TRUE), 305 defaultNumberFormat(NULL), 306 defaultDateFormat(NULL) 307 { 308 if (!allocateSubformats(DEFAULT_INITIAL_CAPACITY) || 309 !allocateArgTypes(DEFAULT_INITIAL_CAPACITY)) { 310 success = U_MEMORY_ALLOCATION_ERROR; 311 return; 312 } 313 applyPattern(pattern, success); 314 setLocaleIDs(fLocale.getName(), fLocale.getName()); 315 } 316 317 MessageFormat::MessageFormat(const UnicodeString& pattern, 318 const Locale& newLocale, 319 UParseError& parseError, 320 UErrorCode& success) 321 : fLocale(newLocale), 322 formatAliases(NULL), 323 formatAliasesCapacity(0), 324 idStart(UCHAR_ID_START), 325 idContinue(UCHAR_ID_CONTINUE), 326 subformats(NULL), 327 subformatCount(0), 328 subformatCapacity(0), 329 argTypes(NULL), 330 argTypeCount(0), 331 argTypeCapacity(0), 332 isArgNumeric(TRUE), 333 defaultNumberFormat(NULL), 334 defaultDateFormat(NULL) 335 { 336 if (!allocateSubformats(DEFAULT_INITIAL_CAPACITY) || 337 !allocateArgTypes(DEFAULT_INITIAL_CAPACITY)) { 338 success = U_MEMORY_ALLOCATION_ERROR; 339 return; 340 } 341 applyPattern(pattern, parseError, success); 342 setLocaleIDs(fLocale.getName(), fLocale.getName()); 343 } 344 345 MessageFormat::MessageFormat(const MessageFormat& that) 346 : Format(that), 347 formatAliases(NULL), 348 formatAliasesCapacity(0), 349 idStart(UCHAR_ID_START), 350 idContinue(UCHAR_ID_CONTINUE), 351 subformats(NULL), 352 subformatCount(0), 353 subformatCapacity(0), 354 argTypes(NULL), 355 argTypeCount(0), 356 argTypeCapacity(0), 357 isArgNumeric(TRUE), 358 defaultNumberFormat(NULL), 359 defaultDateFormat(NULL) 360 { 361 *this = that; 362 } 363 364 MessageFormat::~MessageFormat() 365 { 366 int32_t idx; 367 for (idx = 0; idx < subformatCount; idx++) { 368 delete subformats[idx].format; 369 delete subformats[idx].argName; 370 } 371 uprv_free(subformats); 372 subformats = NULL; 373 subformatCount = subformatCapacity = 0; 374 375 uprv_free(argTypes); 376 argTypes = NULL; 377 argTypeCount = argTypeCapacity = 0; 378 379 uprv_free(formatAliases); 380 381 delete defaultNumberFormat; 382 delete defaultDateFormat; 383 } 384 385 //-------------------------------------------------------------------- 386 // Variable-size array management 387 388 /** 389 * Allocate subformats[] to at least the given capacity and return 390 * TRUE if successful. If not, leave subformats[] unchanged. 391 * 392 * If subformats is NULL, allocate it. If it is not NULL, enlarge it 393 * if necessary to be at least as large as specified. 394 */ 395 UBool MessageFormat::allocateSubformats(int32_t capacity) { 396 if (subformats == NULL) { 397 subformats = (Subformat*) uprv_malloc(sizeof(*subformats) * capacity); 398 subformatCapacity = capacity; 399 subformatCount = 0; 400 if (subformats == NULL) { 401 subformatCapacity = 0; 402 return FALSE; 403 } 404 } else if (subformatCapacity < capacity) { 405 if (capacity < 2*subformatCapacity) { 406 capacity = 2*subformatCapacity; 407 } 408 Subformat* a = (Subformat*) 409 uprv_realloc(subformats, sizeof(*subformats) * capacity); 410 if (a == NULL) { 411 return FALSE; // request failed 412 } 413 subformats = a; 414 subformatCapacity = capacity; 415 } 416 return TRUE; 417 } 418 419 /** 420 * Allocate argTypes[] to at least the given capacity and return 421 * TRUE if successful. If not, leave argTypes[] unchanged. 422 * 423 * If argTypes is NULL, allocate it. If it is not NULL, enlarge it 424 * if necessary to be at least as large as specified. 425 */ 426 UBool MessageFormat::allocateArgTypes(int32_t capacity) { 427 if (argTypes == NULL) { 428 argTypes = (Formattable::Type*) uprv_malloc(sizeof(*argTypes) * capacity); 429 argTypeCount = 0; 430 argTypeCapacity = capacity; 431 if (argTypes == NULL) { 432 argTypeCapacity = 0; 433 return FALSE; 434 } 435 for (int32_t i=0; i<capacity; ++i) { 436 argTypes[i] = Formattable::kString; 437 } 438 } else if (argTypeCapacity < capacity) { 439 if (capacity < 2*argTypeCapacity) { 440 capacity = 2*argTypeCapacity; 441 } 442 Formattable::Type* a = (Formattable::Type*) 443 uprv_realloc(argTypes, sizeof(*argTypes) * capacity); 444 if (a == NULL) { 445 return FALSE; // request failed 446 } 447 for (int32_t i=argTypeCapacity; i<capacity; ++i) { 448 a[i] = Formattable::kString; 449 } 450 argTypes = a; 451 argTypeCapacity = capacity; 452 } 453 return TRUE; 454 } 455 456 // ------------------------------------- 457 // assignment operator 458 459 const MessageFormat& 460 MessageFormat::operator=(const MessageFormat& that) 461 { 462 // Reallocate the arrays BEFORE changing this object 463 if (this != &that && 464 allocateSubformats(that.subformatCount) && 465 allocateArgTypes(that.argTypeCount)) { 466 467 // Calls the super class for assignment first. 468 Format::operator=(that); 469 470 fPattern = that.fPattern; 471 setLocale(that.fLocale); 472 isArgNumeric = that.isArgNumeric; 473 int32_t j; 474 for (j=0; j<subformatCount; ++j) { 475 delete subformats[j].format; 476 } 477 subformatCount = 0; 478 479 for (j=0; j<that.subformatCount; ++j) { 480 // Subformat::operator= does NOT delete this.format 481 subformats[j] = that.subformats[j]; 482 } 483 subformatCount = that.subformatCount; 484 485 for (j=0; j<that.argTypeCount; ++j) { 486 argTypes[j] = that.argTypes[j]; 487 } 488 argTypeCount = that.argTypeCount; 489 } 490 return *this; 491 } 492 493 UBool 494 MessageFormat::operator==(const Format& rhs) const 495 { 496 if (this == &rhs) return TRUE; 497 498 MessageFormat& that = (MessageFormat&)rhs; 499 500 // Check class ID before checking MessageFormat members 501 if (!Format::operator==(rhs) || 502 fPattern != that.fPattern || 503 fLocale != that.fLocale || 504 isArgNumeric != that.isArgNumeric) { 505 return FALSE; 506 } 507 508 int32_t j; 509 for (j=0; j<subformatCount; ++j) { 510 if (subformats[j] != that.subformats[j]) { 511 return FALSE; 512 } 513 } 514 515 return TRUE; 516 } 517 518 // ------------------------------------- 519 // Creates a copy of this MessageFormat, the caller owns the copy. 520 521 Format* 522 MessageFormat::clone() const 523 { 524 return new MessageFormat(*this); 525 } 526 527 // ------------------------------------- 528 // Sets the locale of this MessageFormat object to theLocale. 529 530 void 531 MessageFormat::setLocale(const Locale& theLocale) 532 { 533 if (fLocale != theLocale) { 534 delete defaultNumberFormat; 535 defaultNumberFormat = NULL; 536 delete defaultDateFormat; 537 defaultDateFormat = NULL; 538 } 539 fLocale = theLocale; 540 setLocaleIDs(fLocale.getName(), fLocale.getName()); 541 } 542 543 // ------------------------------------- 544 // Gets the locale of this MessageFormat object. 545 546 const Locale& 547 MessageFormat::getLocale() const 548 { 549 return fLocale; 550 } 551 552 553 554 555 void 556 MessageFormat::applyPattern(const UnicodeString& newPattern, 557 UErrorCode& status) 558 { 559 UParseError parseError; 560 applyPattern(newPattern,parseError,status); 561 } 562 563 564 // ------------------------------------- 565 // Applies the new pattern and returns an error if the pattern 566 // is not correct. 567 void 568 MessageFormat::applyPattern(const UnicodeString& pattern, 569 UParseError& parseError, 570 UErrorCode& ec) 571 { 572 if(U_FAILURE(ec)) { 573 return; 574 } 575 // The pattern is broken up into segments. Each time a subformat 576 // is encountered, 4 segments are recorded. For example, consider 577 // the pattern: 578 // "There {0,choice,0.0#are no files|1.0#is one file|1.0<are {0, number} files} on disk {1}." 579 // The first set of segments is: 580 // segments[0] = "There " 581 // segments[1] = "0" 582 // segments[2] = "choice" 583 // segments[3] = "0.0#are no files|1.0#is one file|1.0<are {0, number} files" 584 585 // During parsing, the plain text is accumulated into segments[0]. 586 // Segments 1..3 are used to parse each subpattern. Each time a 587 // subpattern is parsed, it creates a format object that is stored 588 // in the subformats array, together with an offset and argument 589 // number. The offset into the plain text stored in 590 // segments[0]. 591 592 // Quotes in segment 0 are handled normally. They are removed. 593 // Quotes may not occur in segments 1 or 2. 594 // Quotes in segment 3 are parsed and _copied_. This makes 595 // subformat patterns work, e.g., {1,number,'#'.##} passes 596 // the pattern "'#'.##" to DecimalFormat. 597 598 UnicodeString segments[4]; 599 int32_t part = 0; // segment we are in, 0..3 600 // Record the highest argument number in the pattern. (In the 601 // subpattern {3,number} the argument number is 3.) 602 int32_t formatNumber = 0; 603 UBool inQuote = FALSE; 604 int32_t braceStack = 0; 605 // Clear error struct 606 parseError.offset = -1; 607 parseError.preContext[0] = parseError.postContext[0] = (UChar)0; 608 int32_t patLen = pattern.length(); 609 int32_t i; 610 611 for (i=0; i<subformatCount; ++i) { 612 delete subformats[i].format; 613 } 614 subformatCount = 0; 615 argTypeCount = 0; 616 617 for (i=0; i<patLen; ++i) { 618 UChar ch = pattern[i]; 619 if (part == 0) { 620 // In segment 0, recognize and remove quotes 621 if (ch == SINGLE_QUOTE) { 622 if (i+1 < patLen && pattern[i+1] == SINGLE_QUOTE) { 623 segments[0] += ch; 624 ++i; 625 } else { 626 inQuote = !inQuote; 627 } 628 } else if (ch == LEFT_CURLY_BRACE && !inQuote) { 629 // The only way we get from segment 0 to 1 is via an 630 // unquoted '{'. 631 part = 1; 632 } else { 633 segments[0] += ch; 634 } 635 } else if (inQuote) { 636 // In segments 1..3, recognize quoted matter, and copy it 637 // into the segment, together with the quotes. This takes 638 // care of '' as well. 639 segments[part] += ch; 640 if (ch == SINGLE_QUOTE) { 641 inQuote = FALSE; 642 } 643 } else { 644 // We have an unquoted character in segment 1..3 645 switch (ch) { 646 case COMMA: 647 // Commas bump us to the next segment, except for segment 3, 648 // which can contain commas. See example above. 649 if (part < 3) 650 part += 1; 651 else 652 segments[3] += ch; 653 break; 654 case LEFT_CURLY_BRACE: 655 // Handle '{' within segment 3. The initial '{' 656 // before segment 1 is handled above. 657 if (part != 3) { 658 ec = U_PATTERN_SYNTAX_ERROR; 659 goto SYNTAX_ERROR; 660 } 661 ++braceStack; 662 segments[part] += ch; 663 break; 664 case RIGHT_CURLY_BRACE: 665 if (braceStack == 0) { 666 makeFormat(formatNumber, segments, parseError,ec); 667 if (U_FAILURE(ec)){ 668 goto SYNTAX_ERROR; 669 } 670 formatNumber++; 671 672 segments[1].remove(); 673 segments[2].remove(); 674 segments[3].remove(); 675 part = 0; 676 } else { 677 --braceStack; 678 segments[part] += ch; 679 } 680 break; 681 case SINGLE_QUOTE: 682 inQuote = TRUE; 683 // fall through (copy quote chars in segments 1..3) 684 default: 685 segments[part] += ch; 686 break; 687 } 688 } 689 } 690 if (braceStack != 0 || part != 0) { 691 // Unmatched braces in the pattern 692 ec = U_UNMATCHED_BRACES; 693 goto SYNTAX_ERROR; 694 } 695 fPattern = segments[0]; 696 return; 697 698 SYNTAX_ERROR: 699 syntaxError(pattern, i, parseError); 700 for (i=0; i<subformatCount; ++i) { 701 delete subformats[i].format; 702 } 703 argTypeCount = subformatCount = 0; 704 } 705 // ------------------------------------- 706 // Converts this MessageFormat instance to a pattern. 707 708 UnicodeString& 709 MessageFormat::toPattern(UnicodeString& appendTo) const { 710 // later, make this more extensible 711 int32_t lastOffset = 0; 712 int32_t i; 713 for (i=0; i<subformatCount; ++i) { 714 copyAndFixQuotes(fPattern, lastOffset, subformats[i].offset, appendTo); 715 lastOffset = subformats[i].offset; 716 appendTo += LEFT_CURLY_BRACE; 717 if (isArgNumeric) { 718 itos(subformats[i].argNum, appendTo); 719 } 720 else { 721 appendTo += *subformats[i].argName; 722 } 723 Format* fmt = subformats[i].format; 724 DecimalFormat* decfmt; 725 SimpleDateFormat* sdtfmt; 726 ChoiceFormat* chcfmt; 727 PluralFormat* plfmt; 728 SelectFormat* selfmt; 729 if (fmt == NULL) { 730 // do nothing, string format 731 } 732 else if ((decfmt = dynamic_cast<DecimalFormat*>(fmt)) != NULL) { 733 UErrorCode ec = U_ZERO_ERROR; 734 NumberFormat& formatAlias = *decfmt; 735 NumberFormat *defaultTemplate = NumberFormat::createInstance(fLocale, ec); 736 NumberFormat *currencyTemplate = NumberFormat::createCurrencyInstance(fLocale, ec); 737 NumberFormat *percentTemplate = NumberFormat::createPercentInstance(fLocale, ec); 738 NumberFormat *integerTemplate = createIntegerFormat(fLocale, ec); 739 740 appendTo += COMMA; 741 appendTo += ID_NUMBER; 742 if (formatAlias != *defaultTemplate) { 743 appendTo += COMMA; 744 if (formatAlias == *currencyTemplate) { 745 appendTo += ID_CURRENCY; 746 } 747 else if (formatAlias == *percentTemplate) { 748 appendTo += ID_PERCENT; 749 } 750 else if (formatAlias == *integerTemplate) { 751 appendTo += ID_INTEGER; 752 } 753 else { 754 UnicodeString buffer; 755 appendTo += decfmt->toPattern(buffer); 756 } 757 } 758 759 delete defaultTemplate; 760 delete currencyTemplate; 761 delete percentTemplate; 762 delete integerTemplate; 763 } 764 else if ((sdtfmt = dynamic_cast<SimpleDateFormat*>(fmt)) != NULL) { 765 DateFormat& formatAlias = *sdtfmt; 766 DateFormat *defaultDateTemplate = DateFormat::createDateInstance(DateFormat::kDefault, fLocale); 767 DateFormat *shortDateTemplate = DateFormat::createDateInstance(DateFormat::kShort, fLocale); 768 DateFormat *longDateTemplate = DateFormat::createDateInstance(DateFormat::kLong, fLocale); 769 DateFormat *fullDateTemplate = DateFormat::createDateInstance(DateFormat::kFull, fLocale); 770 DateFormat *defaultTimeTemplate = DateFormat::createTimeInstance(DateFormat::kDefault, fLocale); 771 DateFormat *shortTimeTemplate = DateFormat::createTimeInstance(DateFormat::kShort, fLocale); 772 DateFormat *longTimeTemplate = DateFormat::createTimeInstance(DateFormat::kLong, fLocale); 773 DateFormat *fullTimeTemplate = DateFormat::createTimeInstance(DateFormat::kFull, fLocale); 774 775 776 appendTo += COMMA; 777 if (formatAlias == *defaultDateTemplate) { 778 appendTo += ID_DATE; 779 } 780 else if (formatAlias == *shortDateTemplate) { 781 appendTo += ID_DATE; 782 appendTo += COMMA; 783 appendTo += ID_SHORT; 784 } 785 else if (formatAlias == *defaultDateTemplate) { 786 appendTo += ID_DATE; 787 appendTo += COMMA; 788 appendTo += ID_MEDIUM; 789 } 790 else if (formatAlias == *longDateTemplate) { 791 appendTo += ID_DATE; 792 appendTo += COMMA; 793 appendTo += ID_LONG; 794 } 795 else if (formatAlias == *fullDateTemplate) { 796 appendTo += ID_DATE; 797 appendTo += COMMA; 798 appendTo += ID_FULL; 799 } 800 else if (formatAlias == *defaultTimeTemplate) { 801 appendTo += ID_TIME; 802 } 803 else if (formatAlias == *shortTimeTemplate) { 804 appendTo += ID_TIME; 805 appendTo += COMMA; 806 appendTo += ID_SHORT; 807 } 808 else if (formatAlias == *defaultTimeTemplate) { 809 appendTo += ID_TIME; 810 appendTo += COMMA; 811 appendTo += ID_MEDIUM; 812 } 813 else if (formatAlias == *longTimeTemplate) { 814 appendTo += ID_TIME; 815 appendTo += COMMA; 816 appendTo += ID_LONG; 817 } 818 else if (formatAlias == *fullTimeTemplate) { 819 appendTo += ID_TIME; 820 appendTo += COMMA; 821 appendTo += ID_FULL; 822 } 823 else { 824 UnicodeString buffer; 825 appendTo += ID_DATE; 826 appendTo += COMMA; 827 appendTo += sdtfmt->toPattern(buffer); 828 } 829 830 delete defaultDateTemplate; 831 delete shortDateTemplate; 832 delete longDateTemplate; 833 delete fullDateTemplate; 834 delete defaultTimeTemplate; 835 delete shortTimeTemplate; 836 delete longTimeTemplate; 837 delete fullTimeTemplate; 838 // {sfb} there should be a more efficient way to do this! 839 } 840 else if ((chcfmt = dynamic_cast<ChoiceFormat*>(fmt)) != NULL) { 841 UnicodeString buffer; 842 appendTo += COMMA; 843 appendTo += ID_CHOICE; 844 appendTo += COMMA; 845 appendTo += ((ChoiceFormat*)fmt)->toPattern(buffer); 846 } 847 else if ((plfmt = dynamic_cast<PluralFormat*>(fmt)) != NULL) { 848 UnicodeString buffer; 849 appendTo += plfmt->toPattern(buffer); 850 } 851 else if ((selfmt = dynamic_cast<SelectFormat*>(fmt)) != NULL) { 852 UnicodeString buffer; 853 appendTo += ((SelectFormat*)fmt)->toPattern(buffer); 854 } 855 else { 856 //appendTo += ", unknown"; 857 } 858 appendTo += RIGHT_CURLY_BRACE; 859 } 860 copyAndFixQuotes(fPattern, lastOffset, fPattern.length(), appendTo); 861 return appendTo; 862 } 863 864 // ------------------------------------- 865 // Adopts the new formats array and updates the array count. 866 // This MessageFormat instance owns the new formats. 867 868 void 869 MessageFormat::adoptFormats(Format** newFormats, 870 int32_t count) { 871 if (newFormats == NULL || count < 0) { 872 return; 873 } 874 875 int32_t i; 876 if (allocateSubformats(count)) { 877 for (i=0; i<subformatCount; ++i) { 878 delete subformats[i].format; 879 } 880 for (i=0; i<count; ++i) { 881 subformats[i].format = newFormats[i]; 882 } 883 subformatCount = count; 884 } else { 885 // An adopt method must always take ownership. Delete 886 // the incoming format objects and return unchanged. 887 for (i=0; i<count; ++i) { 888 delete newFormats[i]; 889 } 890 } 891 892 // TODO: What about the .offset and .argNum fields? 893 } 894 895 // ------------------------------------- 896 // Sets the new formats array and updates the array count. 897 // This MessageFormat instance maks a copy of the new formats. 898 899 void 900 MessageFormat::setFormats(const Format** newFormats, 901 int32_t count) { 902 if (newFormats == NULL || count < 0) { 903 return; 904 } 905 906 if (allocateSubformats(count)) { 907 int32_t i; 908 for (i=0; i<subformatCount; ++i) { 909 delete subformats[i].format; 910 } 911 subformatCount = 0; 912 913 for (i=0; i<count; ++i) { 914 subformats[i].format = newFormats[i] ? newFormats[i]->clone() : NULL; 915 } 916 subformatCount = count; 917 } 918 919 // TODO: What about the .offset and .arg fields? 920 } 921 922 // ------------------------------------- 923 // Adopt a single format by format number. 924 // Do nothing if the format number is not less than the array count. 925 926 void 927 MessageFormat::adoptFormat(int32_t n, Format *newFormat) { 928 if (n < 0 || n >= subformatCount) { 929 delete newFormat; 930 } else { 931 delete subformats[n].format; 932 subformats[n].format = newFormat; 933 } 934 } 935 936 // ------------------------------------- 937 // Adopt a single format by format name. 938 // Do nothing if there is no match of formatName. 939 void 940 MessageFormat::adoptFormat(const UnicodeString& formatName, 941 Format* formatToAdopt, 942 UErrorCode& status) { 943 if (isArgNumeric ) { 944 int32_t argumentNumber = stou(formatName); 945 if (argumentNumber<0) { 946 status = U_ARGUMENT_TYPE_MISMATCH; 947 return; 948 } 949 adoptFormat(argumentNumber, formatToAdopt); 950 return; 951 } 952 for (int32_t i=0; i<subformatCount; ++i) { 953 if (formatName==*subformats[i].argName) { 954 delete subformats[i].format; 955 if ( formatToAdopt== NULL) { 956 // This should never happen -- but we'll be nice if it does 957 subformats[i].format = NULL; 958 } else { 959 subformats[i].format = formatToAdopt; 960 } 961 } 962 } 963 } 964 965 // ------------------------------------- 966 // Set a single format. 967 // Do nothing if the variable is not less than the array count. 968 969 void 970 MessageFormat::setFormat(int32_t n, const Format& newFormat) { 971 if (n >= 0 && n < subformatCount) { 972 delete subformats[n].format; 973 if (&newFormat == NULL) { 974 // This should never happen -- but we'll be nice if it does 975 subformats[n].format = NULL; 976 } else { 977 subformats[n].format = newFormat.clone(); 978 } 979 } 980 } 981 982 // ------------------------------------- 983 // Get a single format by format name. 984 // Do nothing if the variable is not less than the array count. 985 Format * 986 MessageFormat::getFormat(const UnicodeString& formatName, UErrorCode& status) { 987 988 if (U_FAILURE(status)) return NULL; 989 990 if (isArgNumeric ) { 991 int32_t argumentNumber = stou(formatName); 992 if (argumentNumber<0) { 993 status = U_ARGUMENT_TYPE_MISMATCH; 994 return NULL; 995 } 996 if (argumentNumber < 0 || argumentNumber >= subformatCount) { 997 return subformats[argumentNumber].format; 998 } 999 else { 1000 return NULL; 1001 } 1002 } 1003 1004 for (int32_t i=0; i<subformatCount; ++i) { 1005 if (formatName==*subformats[i].argName) 1006 { 1007 return subformats[i].format; 1008 } 1009 } 1010 return NULL; 1011 } 1012 1013 // ------------------------------------- 1014 // Set a single format by format name 1015 // Do nothing if the variable is not less than the array count. 1016 void 1017 MessageFormat::setFormat(const UnicodeString& formatName, 1018 const Format& newFormat, 1019 UErrorCode& status) { 1020 if (isArgNumeric) { 1021 status = U_ARGUMENT_TYPE_MISMATCH; 1022 return; 1023 } 1024 for (int32_t i=0; i<subformatCount; ++i) { 1025 if (formatName==*subformats[i].argName) 1026 { 1027 delete subformats[i].format; 1028 if (&newFormat == NULL) { 1029 // This should never happen -- but we'll be nice if it does 1030 subformats[i].format = NULL; 1031 } else { 1032 subformats[i].format = newFormat.clone(); 1033 } 1034 break; 1035 } 1036 } 1037 } 1038 1039 // ------------------------------------- 1040 // Gets the format array. 1041 1042 const Format** 1043 MessageFormat::getFormats(int32_t& cnt) const 1044 { 1045 // This old API returns an array (which we hold) of Format* 1046 // pointers. The array is valid up to the next call to any 1047 // method on this object. We construct and resize an array 1048 // on demand that contains aliases to the subformats[i].format 1049 // pointers. 1050 MessageFormat* t = (MessageFormat*) this; 1051 cnt = 0; 1052 if (formatAliases == NULL) { 1053 t->formatAliasesCapacity = (subformatCount<10) ? 10 : subformatCount; 1054 Format** a = (Format**) 1055 uprv_malloc(sizeof(Format*) * formatAliasesCapacity); 1056 if (a == NULL) { 1057 return NULL; 1058 } 1059 t->formatAliases = a; 1060 } else if (subformatCount > formatAliasesCapacity) { 1061 Format** a = (Format**) 1062 uprv_realloc(formatAliases, sizeof(Format*) * subformatCount); 1063 if (a == NULL) { 1064 return NULL; 1065 } 1066 t->formatAliases = a; 1067 t->formatAliasesCapacity = subformatCount; 1068 } 1069 for (int32_t i=0; i<subformatCount; ++i) { 1070 t->formatAliases[i] = subformats[i].format; 1071 } 1072 cnt = subformatCount; 1073 return (const Format**)formatAliases; 1074 } 1075 1076 1077 StringEnumeration* 1078 MessageFormat::getFormatNames(UErrorCode& status) { 1079 if (U_FAILURE(status)) return NULL; 1080 1081 if (isArgNumeric) { 1082 status = U_ARGUMENT_TYPE_MISMATCH; 1083 return NULL; 1084 } 1085 UVector *fFormatNames = new UVector(status); 1086 if (U_FAILURE(status)) { 1087 status = U_MEMORY_ALLOCATION_ERROR; 1088 return NULL; 1089 } 1090 for (int32_t i=0; i<subformatCount; ++i) { 1091 fFormatNames->addElement(new UnicodeString(*subformats[i].argName), status); 1092 } 1093 1094 StringEnumeration* nameEnumerator = new FormatNameEnumeration(fFormatNames, status); 1095 return nameEnumerator; 1096 } 1097 1098 // ------------------------------------- 1099 // Formats the source Formattable array and copy into the result buffer. 1100 // Ignore the FieldPosition result for error checking. 1101 1102 UnicodeString& 1103 MessageFormat::format(const Formattable* source, 1104 int32_t cnt, 1105 UnicodeString& appendTo, 1106 FieldPosition& ignore, 1107 UErrorCode& success) const 1108 { 1109 if (U_FAILURE(success)) 1110 return appendTo; 1111 1112 return format(source, cnt, appendTo, ignore, 0, success); 1113 } 1114 1115 // ------------------------------------- 1116 // Internally creates a MessageFormat instance based on the 1117 // pattern and formats the arguments Formattable array and 1118 // copy into the appendTo buffer. 1119 1120 UnicodeString& 1121 MessageFormat::format( const UnicodeString& pattern, 1122 const Formattable* arguments, 1123 int32_t cnt, 1124 UnicodeString& appendTo, 1125 UErrorCode& success) 1126 { 1127 MessageFormat temp(pattern, success); 1128 FieldPosition ignore(0); 1129 temp.format(arguments, cnt, appendTo, ignore, success); 1130 return appendTo; 1131 } 1132 1133 // ------------------------------------- 1134 // Formats the source Formattable object and copy into the 1135 // appendTo buffer. The Formattable object must be an array 1136 // of Formattable instances, returns error otherwise. 1137 1138 UnicodeString& 1139 MessageFormat::format(const Formattable& source, 1140 UnicodeString& appendTo, 1141 FieldPosition& ignore, 1142 UErrorCode& success) const 1143 { 1144 int32_t cnt; 1145 1146 if (U_FAILURE(success)) 1147 return appendTo; 1148 if (source.getType() != Formattable::kArray) { 1149 success = U_ILLEGAL_ARGUMENT_ERROR; 1150 return appendTo; 1151 } 1152 const Formattable* tmpPtr = source.getArray(cnt); 1153 1154 return format(tmpPtr, cnt, appendTo, ignore, 0, success); 1155 } 1156 1157 1158 UnicodeString& 1159 MessageFormat::format(const UnicodeString* argumentNames, 1160 const Formattable* arguments, 1161 int32_t count, 1162 UnicodeString& appendTo, 1163 UErrorCode& success) const { 1164 FieldPosition ignore(0); 1165 return format(arguments, argumentNames, count, appendTo, ignore, 0, success); 1166 } 1167 1168 UnicodeString& 1169 MessageFormat::format(const Formattable* arguments, 1170 int32_t cnt, 1171 UnicodeString& appendTo, 1172 FieldPosition& status, 1173 int32_t recursionProtection, 1174 UErrorCode& success) const 1175 { 1176 return format(arguments, NULL, cnt, appendTo, status, recursionProtection, success); 1177 } 1178 1179 // ------------------------------------- 1180 // Formats the arguments Formattable array and copy into the appendTo buffer. 1181 // Ignore the FieldPosition result for error checking. 1182 1183 UnicodeString& 1184 MessageFormat::format(const Formattable* arguments, 1185 const UnicodeString *argumentNames, 1186 int32_t cnt, 1187 UnicodeString& appendTo, 1188 FieldPosition& status, 1189 int32_t recursionProtection, 1190 UErrorCode& success) const 1191 { 1192 int32_t lastOffset = 0; 1193 int32_t argumentNumber=0; 1194 if (cnt < 0 || (cnt && arguments == NULL)) { 1195 success = U_ILLEGAL_ARGUMENT_ERROR; 1196 return appendTo; 1197 } 1198 1199 if ( !isArgNumeric && argumentNames== NULL ) { 1200 success = U_ILLEGAL_ARGUMENT_ERROR; 1201 return appendTo; 1202 } 1203 1204 const Formattable *obj=NULL; 1205 for (int32_t i=0; i<subformatCount; ++i) { 1206 // Append the prefix of current format element. 1207 appendTo.append(fPattern, lastOffset, subformats[i].offset - lastOffset); 1208 lastOffset = subformats[i].offset; 1209 obj = NULL; 1210 if (isArgNumeric) { 1211 argumentNumber = subformats[i].argNum; 1212 1213 // Checks the scope of the argument number. 1214 if (argumentNumber >= cnt) { 1215 appendTo += LEFT_CURLY_BRACE; 1216 itos(argumentNumber, appendTo); 1217 appendTo += RIGHT_CURLY_BRACE; 1218 continue; 1219 } 1220 obj = arguments+argumentNumber; 1221 } 1222 else { 1223 for (int32_t j=0; j<cnt; ++j) { 1224 if (argumentNames[j]== *subformats[i].argName ) { 1225 obj = arguments+j; 1226 break; 1227 } 1228 } 1229 if (obj == NULL ) { 1230 appendTo += LEFT_CURLY_BRACE; 1231 appendTo += *subformats[i].argName; 1232 appendTo += RIGHT_CURLY_BRACE; 1233 continue; 1234 1235 } 1236 } 1237 Formattable::Type type = obj->getType(); 1238 1239 // Recursively calling the format process only if the current 1240 // format argument refers to either of the following: 1241 // a ChoiceFormat object, a PluralFormat object, a SelectFormat object. 1242 Format* fmt = subformats[i].format; 1243 if (fmt != NULL) { 1244 UnicodeString argNum; 1245 fmt->format(*obj, argNum, success); 1246 1247 // Needs to reprocess the ChoiceFormat and PluralFormat and SelectFormat option by using the 1248 // MessageFormat pattern application. 1249 if ((dynamic_cast<ChoiceFormat*>(fmt) != NULL || 1250 dynamic_cast<PluralFormat*>(fmt) != NULL || 1251 dynamic_cast<SelectFormat*>(fmt) != NULL) && 1252 argNum.indexOf(LEFT_CURLY_BRACE) >= 0 1253 ) { 1254 MessageFormat temp(argNum, fLocale, success); 1255 // TODO: Implement recursion protection 1256 if ( isArgNumeric ) { 1257 temp.format(arguments, NULL, cnt, appendTo, status, recursionProtection, success); 1258 } 1259 else { 1260 temp.format(arguments, argumentNames, cnt, appendTo, status, recursionProtection, success); 1261 } 1262 if (U_FAILURE(success)) { 1263 return appendTo; 1264 } 1265 } 1266 else { 1267 appendTo += argNum; 1268 } 1269 } 1270 // If the obj data type is a number, use a NumberFormat instance. 1271 else if ((type == Formattable::kDouble) || 1272 (type == Formattable::kLong) || 1273 (type == Formattable::kInt64)) { 1274 1275 const NumberFormat* nf = getDefaultNumberFormat(success); 1276 if (nf == NULL) { 1277 return appendTo; 1278 } 1279 if (type == Formattable::kDouble) { 1280 nf->format(obj->getDouble(), appendTo); 1281 } else if (type == Formattable::kLong) { 1282 nf->format(obj->getLong(), appendTo); 1283 } else { 1284 nf->format(obj->getInt64(), appendTo); 1285 } 1286 } 1287 // If the obj data type is a Date instance, use a DateFormat instance. 1288 else if (type == Formattable::kDate) { 1289 const DateFormat* df = getDefaultDateFormat(success); 1290 if (df == NULL) { 1291 return appendTo; 1292 } 1293 df->format(obj->getDate(), appendTo); 1294 } 1295 else if (type == Formattable::kString) { 1296 appendTo += obj->getString(); 1297 } 1298 else { 1299 success = U_ILLEGAL_ARGUMENT_ERROR; 1300 return appendTo; 1301 } 1302 } 1303 // Appends the rest of the pattern characters after the real last offset. 1304 appendTo.append(fPattern, lastOffset, 0x7fffffff); 1305 return appendTo; 1306 } 1307 1308 1309 // ------------------------------------- 1310 // Parses the source pattern and returns the Formattable objects array, 1311 // the array count and the ending parse position. The caller of this method 1312 // owns the array. 1313 1314 Formattable* 1315 MessageFormat::parse(const UnicodeString& source, 1316 ParsePosition& pos, 1317 int32_t& count) const 1318 { 1319 // Allocate at least one element. Allocating an array of length 1320 // zero causes problems on some platforms (e.g. Win32). 1321 Formattable *resultArray = new Formattable[argTypeCount ? argTypeCount : 1]; 1322 int32_t patternOffset = 0; 1323 int32_t sourceOffset = pos.getIndex(); 1324 ParsePosition tempPos(0); 1325 count = 0; // {sfb} reset to zero 1326 int32_t len; 1327 // If resultArray could not be created, exit out. 1328 // Avoid crossing initialization of variables above. 1329 if (resultArray == NULL) { 1330 goto PARSE_ERROR; 1331 } 1332 for (int32_t i = 0; i < subformatCount; ++i) { 1333 // match up to format 1334 len = subformats[i].offset - patternOffset; 1335 if (len == 0 || 1336 fPattern.compare(patternOffset, len, source, sourceOffset, len) == 0) { 1337 sourceOffset += len; 1338 patternOffset += len; 1339 } 1340 else { 1341 goto PARSE_ERROR; 1342 } 1343 1344 // now use format 1345 Format* fmt = subformats[i].format; 1346 int32_t argNum = subformats[i].argNum; 1347 if (fmt == NULL) { // string format 1348 // if at end, use longest possible match 1349 // otherwise uses first match to intervening string 1350 // does NOT recursively try all possibilities 1351 int32_t tempLength = (i+1<subformatCount) ? 1352 subformats[i+1].offset : fPattern.length(); 1353 1354 int32_t next; 1355 if (patternOffset >= tempLength) { 1356 next = source.length(); 1357 } 1358 else { 1359 UnicodeString buffer; 1360 fPattern.extract(patternOffset,tempLength - patternOffset, buffer); 1361 next = source.indexOf(buffer, sourceOffset); 1362 } 1363 1364 if (next < 0) { 1365 goto PARSE_ERROR; 1366 } 1367 else { 1368 UnicodeString buffer; 1369 source.extract(sourceOffset,next - sourceOffset, buffer); 1370 UnicodeString strValue = buffer; 1371 UnicodeString temp(LEFT_CURLY_BRACE); 1372 // {sfb} check this later 1373 if (isArgNumeric) { 1374 itos(argNum, temp); 1375 } 1376 else { 1377 temp+=(*subformats[i].argName); 1378 } 1379 temp += RIGHT_CURLY_BRACE; 1380 if (strValue != temp) { 1381 source.extract(sourceOffset,next - sourceOffset, buffer); 1382 resultArray[argNum].setString(buffer); 1383 // {sfb} not sure about this 1384 if ((argNum + 1) > count) { 1385 count = argNum + 1; 1386 } 1387 } 1388 sourceOffset = next; 1389 } 1390 } 1391 else { 1392 tempPos.setIndex(sourceOffset); 1393 fmt->parseObject(source, resultArray[argNum], tempPos); 1394 if (tempPos.getIndex() == sourceOffset) { 1395 goto PARSE_ERROR; 1396 } 1397 1398 if ((argNum + 1) > count) { 1399 count = argNum + 1; 1400 } 1401 sourceOffset = tempPos.getIndex(); // update 1402 } 1403 } 1404 len = fPattern.length() - patternOffset; 1405 if (len == 0 || 1406 fPattern.compare(patternOffset, len, source, sourceOffset, len) == 0) { 1407 pos.setIndex(sourceOffset + len); 1408 return resultArray; 1409 } 1410 // else fall through... 1411 1412 PARSE_ERROR: 1413 pos.setErrorIndex(sourceOffset); 1414 delete [] resultArray; 1415 count = 0; 1416 return NULL; // leave index as is to signal error 1417 } 1418 1419 // ------------------------------------- 1420 // Parses the source string and returns the array of 1421 // Formattable objects and the array count. The caller 1422 // owns the returned array. 1423 1424 Formattable* 1425 MessageFormat::parse(const UnicodeString& source, 1426 int32_t& cnt, 1427 UErrorCode& success) const 1428 { 1429 if (!isArgNumeric ) { 1430 success = U_ARGUMENT_TYPE_MISMATCH; 1431 return NULL; 1432 } 1433 ParsePosition status(0); 1434 // Calls the actual implementation method and starts 1435 // from zero offset of the source text. 1436 Formattable* result = parse(source, status, cnt); 1437 if (status.getIndex() == 0) { 1438 success = U_MESSAGE_PARSE_ERROR; 1439 delete[] result; 1440 return NULL; 1441 } 1442 return result; 1443 } 1444 1445 // ------------------------------------- 1446 // Parses the source text and copy into the result buffer. 1447 1448 void 1449 MessageFormat::parseObject( const UnicodeString& source, 1450 Formattable& result, 1451 ParsePosition& status) const 1452 { 1453 int32_t cnt = 0; 1454 Formattable* tmpResult = parse(source, status, cnt); 1455 if (tmpResult != NULL) 1456 result.adoptArray(tmpResult, cnt); 1457 } 1458 1459 UnicodeString 1460 MessageFormat::autoQuoteApostrophe(const UnicodeString& pattern, UErrorCode& status) { 1461 UnicodeString result; 1462 if (U_SUCCESS(status)) { 1463 int32_t plen = pattern.length(); 1464 const UChar* pat = pattern.getBuffer(); 1465 int32_t blen = plen * 2 + 1; // space for null termination, convenience 1466 UChar* buf = result.getBuffer(blen); 1467 if (buf == NULL) { 1468 status = U_MEMORY_ALLOCATION_ERROR; 1469 } else { 1470 int32_t len = umsg_autoQuoteApostrophe(pat, plen, buf, blen, &status); 1471 result.releaseBuffer(U_SUCCESS(status) ? len : 0); 1472 } 1473 } 1474 if (U_FAILURE(status)) { 1475 result.setToBogus(); 1476 } 1477 return result; 1478 } 1479 1480 // ------------------------------------- 1481 1482 static Format* makeRBNF(URBNFRuleSetTag tag, const Locale& locale, const UnicodeString& defaultRuleSet, UErrorCode& ec) { 1483 RuleBasedNumberFormat* fmt = new RuleBasedNumberFormat(tag, locale, ec); 1484 if (fmt == NULL) { 1485 ec = U_MEMORY_ALLOCATION_ERROR; 1486 } else if (U_SUCCESS(ec) && defaultRuleSet.length() > 0) { 1487 UErrorCode localStatus = U_ZERO_ERROR; // ignore unrecognized default rule set 1488 fmt->setDefaultRuleSet(defaultRuleSet, localStatus); 1489 } 1490 return fmt; 1491 } 1492 1493 /** 1494 * Reads the segments[] array (see applyPattern()) and parses the 1495 * segments[1..3] into a Format* object. Stores the format object in 1496 * the subformats[] array. Updates the argTypes[] array type 1497 * information for the corresponding argument. 1498 * 1499 * @param formatNumber index into subformats[] for this format 1500 * @param segments array of strings with the parsed pattern segments 1501 * @param parseError parse error data (output param) 1502 * @param ec error code 1503 */ 1504 void 1505 MessageFormat::makeFormat(int32_t formatNumber, 1506 UnicodeString* segments, 1507 UParseError& parseError, 1508 UErrorCode& ec) { 1509 if (U_FAILURE(ec)) { 1510 return; 1511 } 1512 1513 // Parse the argument number 1514 int32_t argumentNumber = stou(segments[1]); // always unlocalized! 1515 UnicodeString argumentName; 1516 if (argumentNumber < 0) { 1517 if ( (isArgNumeric==TRUE) && (formatNumber !=0) ) { 1518 ec = U_INVALID_FORMAT_ERROR; 1519 return; 1520 } 1521 isArgNumeric = FALSE; 1522 argumentNumber=formatNumber; 1523 } 1524 if (!isArgNumeric) { 1525 if ( !isLegalArgName(segments[1]) ) { 1526 ec = U_INVALID_FORMAT_ERROR; 1527 return; 1528 } 1529 argumentName = segments[1]; 1530 } 1531 1532 // Parse the format, recording the argument type and creating a 1533 // new Format object (except for string arguments). 1534 Formattable::Type argType; 1535 Format *fmt = NULL; 1536 int32_t typeID, styleID; 1537 DateFormat::EStyle style; 1538 UnicodeString unquotedPattern, quotedPattern; 1539 UBool inQuote = FALSE; 1540 1541 switch (typeID = findKeyword(segments[2], TYPE_IDS)) { 1542 1543 case 0: // string 1544 argType = Formattable::kString; 1545 break; 1546 1547 case 1: // number 1548 argType = Formattable::kDouble; 1549 1550 switch (findKeyword(segments[3], NUMBER_STYLE_IDS)) { 1551 case 0: // default 1552 fmt = NumberFormat::createInstance(fLocale, ec); 1553 break; 1554 case 1: // currency 1555 fmt = NumberFormat::createCurrencyInstance(fLocale, ec); 1556 break; 1557 case 2: // percent 1558 fmt = NumberFormat::createPercentInstance(fLocale, ec); 1559 break; 1560 case 3: // integer 1561 argType = Formattable::kLong; 1562 fmt = createIntegerFormat(fLocale, ec); 1563 break; 1564 default: // pattern 1565 fmt = NumberFormat::createInstance(fLocale, ec); 1566 if (fmt) { 1567 DecimalFormat* decfmt = dynamic_cast<DecimalFormat*>(fmt); 1568 if (decfmt != NULL) { 1569 decfmt->applyPattern(segments[3],parseError,ec); 1570 } 1571 } 1572 break; 1573 } 1574 break; 1575 1576 case 2: // date 1577 case 3: // time 1578 argType = Formattable::kDate; 1579 styleID = findKeyword(segments[3], DATE_STYLE_IDS); 1580 style = (styleID >= 0) ? DATE_STYLES[styleID] : DateFormat::kDefault; 1581 1582 if (typeID == 2) { 1583 fmt = DateFormat::createDateInstance(style, fLocale); 1584 } else { 1585 fmt = DateFormat::createTimeInstance(style, fLocale); 1586 } 1587 1588 if (styleID < 0 && fmt != NULL) { 1589 SimpleDateFormat* sdtfmt = dynamic_cast<SimpleDateFormat*>(fmt); 1590 if (sdtfmt != NULL) { 1591 sdtfmt->applyPattern(segments[3]); 1592 } 1593 } 1594 break; 1595 1596 case 4: // choice 1597 argType = Formattable::kDouble; 1598 1599 fmt = new ChoiceFormat(segments[3], parseError, ec); 1600 break; 1601 1602 case 5: // spellout 1603 argType = Formattable::kDouble; 1604 fmt = makeRBNF(URBNF_SPELLOUT, fLocale, segments[3], ec); 1605 break; 1606 case 6: // ordinal 1607 argType = Formattable::kDouble; 1608 fmt = makeRBNF(URBNF_ORDINAL, fLocale, segments[3], ec); 1609 break; 1610 case 7: // duration 1611 argType = Formattable::kDouble; 1612 fmt = makeRBNF(URBNF_DURATION, fLocale, segments[3], ec); 1613 break; 1614 case 8: // plural 1615 case 9: // Select 1616 if(typeID == 8) 1617 argType = Formattable::kDouble; 1618 else 1619 argType = Formattable::kString; 1620 quotedPattern = segments[3]; 1621 for (int32_t i = 0; i < quotedPattern.length(); ++i) { 1622 UChar ch = quotedPattern.charAt(i); 1623 if (ch == SINGLE_QUOTE) { 1624 if (i+1 < quotedPattern.length() && quotedPattern.charAt(i+1)==SINGLE_QUOTE) { 1625 unquotedPattern+=ch; 1626 ++i; 1627 } 1628 else { 1629 inQuote = !inQuote; 1630 } 1631 } 1632 else { 1633 unquotedPattern += ch; 1634 } 1635 } 1636 if(typeID == 8) 1637 fmt = new PluralFormat(fLocale, unquotedPattern, ec); 1638 else 1639 fmt = new SelectFormat(unquotedPattern, ec); 1640 break; 1641 default: 1642 argType = Formattable::kString; 1643 ec = U_ILLEGAL_ARGUMENT_ERROR; 1644 break; 1645 } 1646 1647 if (fmt==NULL && argType!=Formattable::kString && U_SUCCESS(ec)) { 1648 ec = U_MEMORY_ALLOCATION_ERROR; 1649 } 1650 1651 if (!allocateSubformats(formatNumber+1) || 1652 !allocateArgTypes(argumentNumber+1)) { 1653 ec = U_MEMORY_ALLOCATION_ERROR; 1654 } 1655 1656 if (U_FAILURE(ec)) { 1657 delete fmt; 1658 return; 1659 } 1660 1661 // Parse succeeded; record results in our arrays 1662 subformats[formatNumber].format = fmt; 1663 subformats[formatNumber].offset = segments[0].length(); 1664 if (isArgNumeric) { 1665 subformats[formatNumber].argName = NULL; 1666 subformats[formatNumber].argNum = argumentNumber; 1667 } 1668 else { 1669 subformats[formatNumber].argName = new UnicodeString(argumentName); 1670 subformats[formatNumber].argNum = -1; 1671 } 1672 subformatCount = formatNumber+1; 1673 1674 // Careful here: argumentNumber may in general arrive out of 1675 // sequence, e.g., "There was {2} on {0,date} (see {1,number})." 1676 argTypes[argumentNumber] = argType; 1677 if (argumentNumber+1 > argTypeCount) { 1678 argTypeCount = argumentNumber+1; 1679 } 1680 } 1681 1682 // ------------------------------------- 1683 // Finds the string, s, in the string array, list. 1684 int32_t MessageFormat::findKeyword(const UnicodeString& s, 1685 const UChar * const *list) 1686 { 1687 if (s.length() == 0) 1688 return 0; // default 1689 1690 UnicodeString buffer = s; 1691 // Trims the space characters and turns all characters 1692 // in s to lower case. 1693 buffer.trim().toLower(""); 1694 for (int32_t i = 0; list[i]; ++i) { 1695 if (!buffer.compare(list[i], u_strlen(list[i]))) { 1696 return i; 1697 } 1698 } 1699 return -1; 1700 } 1701 1702 // ------------------------------------- 1703 // Checks the range of the source text to quote the special 1704 // characters, { and ' and copy to target buffer. 1705 1706 void 1707 MessageFormat::copyAndFixQuotes(const UnicodeString& source, 1708 int32_t start, 1709 int32_t end, 1710 UnicodeString& appendTo) 1711 { 1712 UBool gotLB = FALSE; 1713 1714 for (int32_t i = start; i < end; ++i) { 1715 UChar ch = source[i]; 1716 if (ch == LEFT_CURLY_BRACE) { 1717 appendTo += SINGLE_QUOTE; 1718 appendTo += LEFT_CURLY_BRACE; 1719 appendTo += SINGLE_QUOTE; 1720 gotLB = TRUE; 1721 } 1722 else if (ch == RIGHT_CURLY_BRACE) { 1723 if(gotLB) { 1724 appendTo += RIGHT_CURLY_BRACE; 1725 gotLB = FALSE; 1726 } 1727 else { 1728 // orig code. 1729 appendTo += SINGLE_QUOTE; 1730 appendTo += RIGHT_CURLY_BRACE; 1731 appendTo += SINGLE_QUOTE; 1732 } 1733 } 1734 else if (ch == SINGLE_QUOTE) { 1735 appendTo += SINGLE_QUOTE; 1736 appendTo += SINGLE_QUOTE; 1737 } 1738 else { 1739 appendTo += ch; 1740 } 1741 } 1742 } 1743 1744 /** 1745 * Convenience method that ought to be in NumberFormat 1746 */ 1747 NumberFormat* 1748 MessageFormat::createIntegerFormat(const Locale& locale, UErrorCode& status) const { 1749 NumberFormat *temp = NumberFormat::createInstance(locale, status); 1750 DecimalFormat *temp2; 1751 if (temp != NULL && (temp2 = dynamic_cast<DecimalFormat*>(temp)) != NULL) { 1752 temp2->setMaximumFractionDigits(0); 1753 temp2->setDecimalSeparatorAlwaysShown(FALSE); 1754 temp2->setParseIntegerOnly(TRUE); 1755 } 1756 1757 return temp; 1758 } 1759 1760 /** 1761 * Return the default number format. Used to format a numeric 1762 * argument when subformats[i].format is NULL. Returns NULL 1763 * on failure. 1764 * 1765 * Semantically const but may modify *this. 1766 */ 1767 const NumberFormat* MessageFormat::getDefaultNumberFormat(UErrorCode& ec) const { 1768 if (defaultNumberFormat == NULL) { 1769 MessageFormat* t = (MessageFormat*) this; 1770 t->defaultNumberFormat = NumberFormat::createInstance(fLocale, ec); 1771 if (U_FAILURE(ec)) { 1772 delete t->defaultNumberFormat; 1773 t->defaultNumberFormat = NULL; 1774 } else if (t->defaultNumberFormat == NULL) { 1775 ec = U_MEMORY_ALLOCATION_ERROR; 1776 } 1777 } 1778 return defaultNumberFormat; 1779 } 1780 1781 /** 1782 * Return the default date format. Used to format a date 1783 * argument when subformats[i].format is NULL. Returns NULL 1784 * on failure. 1785 * 1786 * Semantically const but may modify *this. 1787 */ 1788 const DateFormat* MessageFormat::getDefaultDateFormat(UErrorCode& ec) const { 1789 if (defaultDateFormat == NULL) { 1790 MessageFormat* t = (MessageFormat*) this; 1791 t->defaultDateFormat = DateFormat::createDateTimeInstance(DateFormat::kShort, DateFormat::kShort, fLocale); 1792 if (t->defaultDateFormat == NULL) { 1793 ec = U_MEMORY_ALLOCATION_ERROR; 1794 } 1795 } 1796 return defaultDateFormat; 1797 } 1798 1799 UBool 1800 MessageFormat::usesNamedArguments() const { 1801 return !isArgNumeric; 1802 } 1803 1804 UBool 1805 MessageFormat::isLegalArgName(const UnicodeString& argName) const { 1806 if(!u_hasBinaryProperty(argName.charAt(0), idStart)) { 1807 return FALSE; 1808 } 1809 for (int32_t i=1; i<argName.length(); ++i) { 1810 if(!u_hasBinaryProperty(argName.charAt(i), idContinue)) { 1811 return FALSE; 1812 } 1813 } 1814 return TRUE; 1815 } 1816 1817 int32_t 1818 MessageFormat::getArgTypeCount() const { 1819 return argTypeCount; 1820 } 1821 1822 FormatNameEnumeration::FormatNameEnumeration(UVector *fNameList, UErrorCode& /*status*/) { 1823 pos=0; 1824 fFormatNames = fNameList; 1825 } 1826 1827 const UnicodeString* 1828 FormatNameEnumeration::snext(UErrorCode& status) { 1829 if (U_SUCCESS(status) && pos < fFormatNames->size()) { 1830 return (const UnicodeString*)fFormatNames->elementAt(pos++); 1831 } 1832 return NULL; 1833 } 1834 1835 void 1836 FormatNameEnumeration::reset(UErrorCode& /*status*/) { 1837 pos=0; 1838 } 1839 1840 int32_t 1841 FormatNameEnumeration::count(UErrorCode& /*status*/) const { 1842 return (fFormatNames==NULL) ? 0 : fFormatNames->size(); 1843 } 1844 1845 FormatNameEnumeration::~FormatNameEnumeration() { 1846 UnicodeString *s; 1847 for (int32_t i=0; i<fFormatNames->size(); ++i) { 1848 if ((s=(UnicodeString *)fFormatNames->elementAt(i))!=NULL) { 1849 delete s; 1850 } 1851 } 1852 delete fFormatNames; 1853 } 1854 U_NAMESPACE_END 1855 1856 #endif /* #if !UCONFIG_NO_FORMATTING */ 1857 1858 //eof 1859
