2
*******************************************************************************
3
* Copyright (C) 2004-2009, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* file name: ucol_sit.cpp
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* tab size: 8 (not used)
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* Modification history
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* 03/12/2004 weiv Creation
16
#include "unicode/ustring.h"
17
#include "unicode/udata.h"
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#if !UCONFIG_NO_COLLATION
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UCOL_SIT_LANGUAGE = 0,
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UCOL_SIT_NUMERIC_COLLATION,
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UCOL_SIT_ALTERNATE_HANDLING,
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UCOL_SIT_NORMALIZATION_MODE,
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UCOL_SIT_FRENCH_COLLATION,
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UCOL_SIT_HIRAGANA_QUATERNARY,
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UCOL_SIT_VARIABLE_TOP,
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UCOL_SIT_VARIABLE_TOP_VALUE,
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/* option starters chars. */
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static const char alternateHArg = 'A';
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static const char variableTopValArg = 'B';
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static const char caseFirstArg = 'C';
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static const char numericCollArg = 'D';
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static const char caseLevelArg = 'E';
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static const char frenchCollArg = 'F';
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static const char hiraganaQArg = 'H';
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static const char keywordArg = 'K';
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static const char languageArg = 'L';
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static const char normArg = 'N';
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static const char regionArg = 'R';
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static const char strengthArg = 'S';
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static const char variableTopArg = 'T';
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static const char variantArg = 'V';
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static const char RFC3066Arg = 'X';
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static const char scriptArg = 'Z';
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static const char collationKeyword[] = "@collation=";
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static const int32_t locElementCount = 5;
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static const int32_t locElementCapacity = 32;
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static const int32_t loc3066Capacity = 256;
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static const int32_t internalBufferSize = 512;
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/* structure containing specification of a collator. Initialized
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* from a short string. Also used to construct a short string from a
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char locElements[locElementCount][locElementCapacity];
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char locale[loc3066Capacity];
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UColAttributeValue options[UCOL_ATTRIBUTE_COUNT];
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uint32_t variableTopValue;
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UChar variableTopString[locElementCapacity];
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int32_t variableTopStringLen;
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} entries[UCOL_SIT_ITEMS_COUNT];
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/* structure for converting between character attribute
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* representation and real collation attribute value.
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struct AttributeConversion {
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UColAttributeValue value;
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static const AttributeConversion conversions[12] = {
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{ '1', UCOL_PRIMARY },
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{ '2', UCOL_SECONDARY },
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{ '3', UCOL_TERTIARY },
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{ '4', UCOL_QUATERNARY },
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{ 'D', UCOL_DEFAULT },
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{ 'I', UCOL_IDENTICAL },
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{ 'L', UCOL_LOWER_FIRST },
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{ 'N', UCOL_NON_IGNORABLE },
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{ 'S', UCOL_SHIFTED },
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{ 'U', UCOL_UPPER_FIRST },
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ucol_sit_attributeValueToLetter(UColAttributeValue value, UErrorCode *status) {
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for(i = 0; i < sizeof(conversions)/sizeof(conversions[0]); i++) {
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if(conversions[i].value == value) {
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return conversions[i].letter;
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*status = U_ILLEGAL_ARGUMENT_ERROR;
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static UColAttributeValue
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ucol_sit_letterToAttributeValue(char letter, UErrorCode *status) {
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for(i = 0; i < sizeof(conversions)/sizeof(conversions[0]); i++) {
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if(conversions[i].letter == letter) {
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return conversions[i].value;
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*status = U_ILLEGAL_ARGUMENT_ERROR;
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/* function prototype for functions used to parse a short string */
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typedef const char* U_CALLCONV
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ActionFunction(CollatorSpec *spec, uint32_t value1, const char* string,
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static const char* U_CALLCONV
150
_processLocaleElement(CollatorSpec *spec, uint32_t value, const char* string,
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if(value == 0 || value == 4) {
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spec->locElements[value][len++] = uprv_tolower(*string);
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spec->locElements[value][len++] = *string;
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} while(*(++string) != '_' && *string && len < locElementCapacity);
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if(len >= locElementCapacity) {
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*status = U_BUFFER_OVERFLOW_ERROR;
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// don't skip the underscore at the end
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static const char* U_CALLCONV
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_processRFC3066Locale(CollatorSpec *spec, uint32_t, const char* string,
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char terminator = *string;
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const char *end = uprv_strchr(string+1, terminator);
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if(end == NULL || end - string >= loc3066Capacity) {
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*status = U_BUFFER_OVERFLOW_ERROR;
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uprv_strncpy(spec->locale, string, end-string);
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static const char* U_CALLCONV
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_processCollatorOption(CollatorSpec *spec, uint32_t option, const char* string,
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spec->options[option] = ucol_sit_letterToAttributeValue(*string, status);
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if((*(++string) != '_' && *string) || U_FAILURE(*status)) {
196
*status = U_ILLEGAL_ARGUMENT_ERROR;
204
readHexCodeUnit(const char **string, UErrorCode *status)
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int32_t noDigits = 0;
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while((c = **string) != 0 && noDigits < 4) {
211
if( c >= '0' && c <= '9') {
213
} else if ( c >= 'a' && c <= 'f') {
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value = c - 'a' + 10;
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} else if ( c >= 'A' && c <= 'F') {
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value = c - 'A' + 10;
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*status = U_ILLEGAL_ARGUMENT_ERROR;
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result = (result << 4) | (UChar)value;
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// if the string was terminated before we read 4 digits, set an error
227
*status = U_ILLEGAL_ARGUMENT_ERROR;
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static const char* U_CALLCONV
234
_processVariableTop(CollatorSpec *spec, uint32_t value1, const char* string, UErrorCode *status)
239
while(U_SUCCESS(*status) && i < locElementCapacity && *string != 0 && *string != '_') {
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spec->variableTopString[i++] = readHexCodeUnit(&string, status);
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spec->variableTopStringLen = i;
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if(i == locElementCapacity && (*string != 0 || *string != '_')) {
244
*status = U_BUFFER_OVERFLOW_ERROR;
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spec->variableTopValue = readHexCodeUnit(&string, status);
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if(U_SUCCESS(*status)) {
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spec->variableTopSet = TRUE;
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/* Table for parsing short strings */
258
struct ShortStringOptions {
260
ActionFunction *action;
264
static const ShortStringOptions options[UCOL_SIT_ITEMS_COUNT] =
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/* 10 ALTERNATE_HANDLING */ {alternateHArg, _processCollatorOption, UCOL_ALTERNATE_HANDLING }, // alternate N, S, D
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/* 15 VARIABLE_TOP_VALUE */ {variableTopValArg, _processVariableTop, 1 },
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/* 08 CASE_FIRST */ {caseFirstArg, _processCollatorOption, UCOL_CASE_FIRST }, // case first L, U, X, D
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/* 09 NUMERIC_COLLATION */ {numericCollArg, _processCollatorOption, UCOL_NUMERIC_COLLATION }, // codan O, X, D
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/* 07 CASE_LEVEL */ {caseLevelArg, _processCollatorOption, UCOL_CASE_LEVEL }, // case level O, X, D
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/* 12 FRENCH_COLLATION */ {frenchCollArg, _processCollatorOption, UCOL_FRENCH_COLLATION }, // french O, X, D
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/* 13 HIRAGANA_QUATERNARY] */ {hiraganaQArg, _processCollatorOption, UCOL_HIRAGANA_QUATERNARY_MODE }, // hiragana O, X, D
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/* 04 KEYWORD */ {keywordArg, _processLocaleElement, 4 }, // keyword
274
/* 00 LANGUAGE */ {languageArg, _processLocaleElement, 0 }, // language
275
/* 11 NORMALIZATION_MODE */ {normArg, _processCollatorOption, UCOL_NORMALIZATION_MODE }, // norm O, X, D
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/* 02 REGION */ {regionArg, _processLocaleElement, 2 }, // region
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/* 06 STRENGTH */ {strengthArg, _processCollatorOption, UCOL_STRENGTH }, // strength 1, 2, 3, 4, I, D
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/* 14 VARIABLE_TOP */ {variableTopArg, _processVariableTop, 0 },
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/* 03 VARIANT */ {variantArg, _processLocaleElement, 3 }, // variant
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/* 05 RFC3066BIS */ {RFC3066Arg, _processRFC3066Locale, 0 }, // rfc3066bis locale name
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/* 01 SCRIPT */ {scriptArg, _processLocaleElement, 1 } // script
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const char* ucol_sit_readOption(const char *start, CollatorSpec *spec,
291
for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
292
if(*start == options[i].optionStart) {
293
spec->entries[i].start = start;
294
const char* end = options[i].action(spec, options[i].attr, start+1, status);
295
spec->entries[i].len = end - start;
299
*status = U_ILLEGAL_ARGUMENT_ERROR;
304
void ucol_sit_initCollatorSpecs(CollatorSpec *spec)
307
uprv_memset(spec, 0, sizeof(CollatorSpec));
308
// set collation options to default
310
for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
311
spec->options[i] = UCOL_DEFAULT;
316
ucol_sit_readSpecs(CollatorSpec *s, const char *string,
317
UParseError *parseError, UErrorCode *status)
319
const char *definition = string;
320
while(U_SUCCESS(*status) && *string) {
321
string = ucol_sit_readOption(string, s, status);
323
while(*string && *string == '_') {
327
if(U_FAILURE(*status)) {
328
parseError->offset = string - definition;
334
int32_t ucol_sit_dumpSpecs(CollatorSpec *s, char *destination, int32_t capacity, UErrorCode *status)
336
int32_t i = 0, j = 0;
339
if(U_SUCCESS(*status)) {
340
for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
341
if(s->entries[i].start) {
344
uprv_strcat(destination, "_");
348
optName = *(s->entries[i].start);
349
if(optName == languageArg || optName == regionArg || optName == variantArg || optName == keywordArg) {
350
for(j = 0; j < s->entries[i].len; j++) {
351
if(len + j < capacity) {
352
destination[len+j] = uprv_toupper(*(s->entries[i].start+j));
355
len += s->entries[i].len;
357
len += s->entries[i].len;
359
uprv_strncat(destination,s->entries[i].start, s->entries[i].len);
371
ucol_sit_calculateWholeLocale(CollatorSpec *s) {
372
// put the locale together, unless we have a done
374
if(s->locale[0] == 0) {
375
// first the language
376
uprv_strcat(s->locale, s->locElements[0]);
377
// then the script, if present
378
if(*(s->locElements[1])) {
379
uprv_strcat(s->locale, "_");
380
uprv_strcat(s->locale, s->locElements[1]);
382
// then the region, if present
383
if(*(s->locElements[2])) {
384
uprv_strcat(s->locale, "_");
385
uprv_strcat(s->locale, s->locElements[2]);
386
} else if(*(s->locElements[3])) { // if there is a variant, we need an underscore
387
uprv_strcat(s->locale, "_");
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// add variant, if there
390
if(*(s->locElements[3])) {
391
uprv_strcat(s->locale, "_");
392
uprv_strcat(s->locale, s->locElements[3]);
395
// if there is a collation keyword, add that too
396
if(*(s->locElements[4])) {
397
uprv_strcat(s->locale, collationKeyword);
398
uprv_strcat(s->locale, s->locElements[4]);
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U_CAPI void U_EXPORT2
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ucol_prepareShortStringOpen( const char *definition,
407
UParseError *parseError,
410
if(U_FAILURE(*status)) return;
412
UParseError internalParseError;
415
parseError = &internalParseError;
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parseError->line = 0;
418
parseError->offset = 0;
419
parseError->preContext[0] = 0;
420
parseError->postContext[0] = 0;
423
// first we want to pick stuff out of short string.
424
// we'll end up with an UCA version, locale and a bunch of
427
// analyse the string in order to get everything we need.
429
ucol_sit_initCollatorSpecs(&s);
430
ucol_sit_readSpecs(&s, definition, parseError, status);
431
ucol_sit_calculateWholeLocale(&s);
433
char buffer[internalBufferSize];
434
uprv_memset(buffer, 0, internalBufferSize);
435
uloc_canonicalize(s.locale, buffer, internalBufferSize, status);
437
UResourceBundle *b = ures_open(U_ICUDATA_COLL, buffer, status);
438
/* we try to find stuff from keyword */
439
UResourceBundle *collations = ures_getByKey(b, "collations", NULL, status);
440
UResourceBundle *collElem = NULL;
442
// if there is a keyword, we pick it up and try to get elements
443
if(!uloc_getKeywordValue(buffer, "collation", keyBuffer, 256, status)) {
444
// no keyword. we try to find the default setting, which will give us the keyword value
445
UResourceBundle *defaultColl = ures_getByKeyWithFallback(collations, "default", NULL, status);
446
if(U_SUCCESS(*status)) {
447
int32_t defaultKeyLen = 0;
448
const UChar *defaultKey = ures_getString(defaultColl, &defaultKeyLen, status);
449
u_UCharsToChars(defaultKey, keyBuffer, defaultKeyLen);
450
keyBuffer[defaultKeyLen] = 0;
452
*status = U_INTERNAL_PROGRAM_ERROR;
455
ures_close(defaultColl);
457
collElem = ures_getByKeyWithFallback(collations, keyBuffer, collElem, status);
458
ures_close(collElem);
459
ures_close(collations);
464
U_CAPI UCollator* U_EXPORT2
465
ucol_openFromShortString( const char *definition,
467
UParseError *parseError,
470
UTRACE_ENTRY_OC(UTRACE_UCOL_OPEN_FROM_SHORT_STRING);
471
UTRACE_DATA1(UTRACE_INFO, "short string = \"%s\"", definition);
473
if(U_FAILURE(*status)) return 0;
475
UParseError internalParseError;
478
parseError = &internalParseError;
480
parseError->line = 0;
481
parseError->offset = 0;
482
parseError->preContext[0] = 0;
483
parseError->postContext[0] = 0;
486
// first we want to pick stuff out of short string.
487
// we'll end up with an UCA version, locale and a bunch of
490
// analyse the string in order to get everything we need.
491
const char *string = definition;
493
ucol_sit_initCollatorSpecs(&s);
494
string = ucol_sit_readSpecs(&s, definition, parseError, status);
495
ucol_sit_calculateWholeLocale(&s);
497
char buffer[internalBufferSize];
498
uprv_memset(buffer, 0, internalBufferSize);
499
uloc_canonicalize(s.locale, buffer, internalBufferSize, status);
501
UCollator *result = ucol_open(buffer, status);
504
for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
505
if(s.options[i] != UCOL_DEFAULT) {
506
if(forceDefaults || ucol_getAttribute(result, (UColAttribute)i, status) != s.options[i]) {
507
ucol_setAttribute(result, (UColAttribute)i, s.options[i], status);
510
if(U_FAILURE(*status)) {
511
parseError->offset = string - definition;
518
if(s.variableTopSet) {
519
if(s.variableTopString[0]) {
520
ucol_setVariableTop(result, s.variableTopString, s.variableTopStringLen, status);
521
} else { // we set by value, using 'B'
522
ucol_restoreVariableTop(result, s.variableTopValue, status);
527
if(U_FAILURE(*status)) { // here it can only be a bogus value
532
UTRACE_EXIT_PTR_STATUS(result, *status);
537
static void appendShortStringElement(const char *src, int32_t len, char *result, int32_t *resultSize, int32_t capacity, char arg)
541
if(*resultSize < capacity) {
542
uprv_strcat(result, "_");
546
*resultSize += len + 1;
547
if(*resultSize < capacity) {
548
uprv_strncat(result, &arg, 1);
549
uprv_strncat(result, src, len);
554
U_CAPI int32_t U_EXPORT2
555
ucol_getShortDefinitionString(const UCollator *coll,
561
if(U_FAILURE(*status)) return 0;
562
char buffer[internalBufferSize];
563
uprv_memset(buffer, 0, internalBufferSize*sizeof(char));
564
int32_t resultSize = 0;
565
char tempbuff[internalBufferSize];
566
char locBuff[internalBufferSize];
567
uprv_memset(buffer, 0, internalBufferSize*sizeof(char));
568
int32_t elementSize = 0;
569
UBool isAvailable = 0;
571
ucol_sit_initCollatorSpecs(&s);
574
locale = ucol_getLocaleByType(coll, ULOC_VALID_LOCALE, status);
576
elementSize = ucol_getFunctionalEquivalent(locBuff, internalBufferSize, "collation", locale, &isAvailable, status);
579
// we should probably canonicalize here...
580
elementSize = uloc_getLanguage(locBuff, tempbuff, internalBufferSize, status);
581
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, languageArg);
582
elementSize = uloc_getCountry(locBuff, tempbuff, internalBufferSize, status);
583
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, regionArg);
584
elementSize = uloc_getScript(locBuff, tempbuff, internalBufferSize, status);
585
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, scriptArg);
586
elementSize = uloc_getVariant(locBuff, tempbuff, internalBufferSize, status);
587
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, variantArg);
588
elementSize = uloc_getKeywordValue(locBuff, "collation", tempbuff, internalBufferSize, status);
589
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, keywordArg);
593
UColAttributeValue attribute = UCOL_DEFAULT;
594
for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
595
if(options[i].action == _processCollatorOption) {
596
attribute = ucol_getAttributeOrDefault(coll, (UColAttribute)options[i].attr, status);
597
if(attribute != UCOL_DEFAULT) {
598
char letter = ucol_sit_attributeValueToLetter(attribute, status);
599
appendShortStringElement(&letter, 1,
600
buffer, &resultSize, /*capacity*/internalBufferSize, options[i].optionStart);
604
if(coll->variableTopValueisDefault == FALSE) {
605
//s.variableTopValue = ucol_getVariableTop(coll, status);
606
elementSize = T_CString_integerToString(tempbuff, coll->variableTopValue, 16);
607
appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, capacity, variableTopValArg);
610
UParseError parseError;
611
return ucol_normalizeShortDefinitionString(buffer, dst, capacity, &parseError, status);
614
U_CAPI int32_t U_EXPORT2
615
ucol_normalizeShortDefinitionString(const char *definition,
618
UParseError *parseError,
622
if(U_FAILURE(*status)) {
627
uprv_memset(destination, 0, capacity*sizeof(char));
637
ucol_sit_initCollatorSpecs(&s);
638
ucol_sit_readSpecs(&s, definition, parseError, status);
639
return ucol_sit_dumpSpecs(&s, destination, capacity, status);
642
U_CAPI UColAttributeValue U_EXPORT2
643
ucol_getAttributeOrDefault(const UCollator *coll, UColAttribute attr, UErrorCode *status)
645
if(U_FAILURE(*status) || coll == NULL) {
649
case UCOL_NUMERIC_COLLATION:
650
return coll->numericCollationisDefault?UCOL_DEFAULT:coll->numericCollation;
651
case UCOL_HIRAGANA_QUATERNARY_MODE:
652
return coll->hiraganaQisDefault?UCOL_DEFAULT:coll->hiraganaQ;
653
case UCOL_FRENCH_COLLATION: /* attribute for direction of secondary weights*/
654
return coll->frenchCollationisDefault?UCOL_DEFAULT:coll->frenchCollation;
655
case UCOL_ALTERNATE_HANDLING: /* attribute for handling variable elements*/
656
return coll->alternateHandlingisDefault?UCOL_DEFAULT:coll->alternateHandling;
657
case UCOL_CASE_FIRST: /* who goes first, lower case or uppercase */
658
return coll->caseFirstisDefault?UCOL_DEFAULT:coll->caseFirst;
659
case UCOL_CASE_LEVEL: /* do we have an extra case level */
660
return coll->caseLevelisDefault?UCOL_DEFAULT:coll->caseLevel;
661
case UCOL_NORMALIZATION_MODE: /* attribute for normalization */
662
return coll->normalizationModeisDefault?UCOL_DEFAULT:coll->normalizationMode;
663
case UCOL_STRENGTH: /* attribute for strength */
664
return coll->strengthisDefault?UCOL_DEFAULT:coll->strength;
665
case UCOL_ATTRIBUTE_COUNT:
667
*status = U_ILLEGAL_ARGUMENT_ERROR;
675
const UCollator *coll;
678
USet *removedContractions;
686
addSpecial(contContext *context, UChar *buffer, int32_t bufLen,
687
uint32_t CE, int32_t leftIndex, int32_t rightIndex, UErrorCode *status)
689
const UCollator *coll = context->coll;
690
USet *contractions = context->conts;
691
USet *expansions = context->expansions;
692
UBool addPrefixes = context->addPrefixes;
694
const UChar *UCharOffset = (UChar *)coll->image+getContractOffset(CE);
695
uint32_t newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
696
// we might have a contraction that ends from previous level
697
if(newCE != UCOL_NOT_FOUND) {
698
if(isSpecial(CE) && getCETag(CE) == CONTRACTION_TAG && isSpecial(newCE) && getCETag(newCE) == SPEC_PROC_TAG && addPrefixes) {
699
addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex, status);
701
if(contractions && rightIndex-leftIndex > 1) {
702
uset_addString(contractions, buffer+leftIndex, rightIndex-leftIndex);
703
if(expansions && isSpecial(CE) && getCETag(CE) == EXPANSION_TAG) {
704
uset_addString(expansions, buffer+leftIndex, rightIndex-leftIndex);
710
// check whether we're doing contraction or prefix
711
if(getCETag(CE) == SPEC_PROC_TAG && addPrefixes) {
713
*status = U_INTERNAL_PROGRAM_ERROR;
717
while(*UCharOffset != 0xFFFF) {
718
newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
719
buffer[leftIndex] = *UCharOffset;
720
if(isSpecial(newCE) && (getCETag(newCE) == CONTRACTION_TAG || getCETag(newCE) == SPEC_PROC_TAG)) {
721
addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex, status);
724
uset_addString(contractions, buffer+leftIndex, rightIndex-leftIndex);
726
if(expansions && isSpecial(newCE) && getCETag(newCE) == EXPANSION_TAG) {
727
uset_addString(expansions, buffer+leftIndex, rightIndex-leftIndex);
732
} else if(getCETag(CE) == CONTRACTION_TAG) {
733
if(rightIndex == bufLen-1) {
734
*status = U_INTERNAL_PROGRAM_ERROR;
737
while(*UCharOffset != 0xFFFF) {
738
newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
739
buffer[rightIndex] = *UCharOffset;
740
if(isSpecial(newCE) && (getCETag(newCE) == CONTRACTION_TAG || getCETag(newCE) == SPEC_PROC_TAG)) {
741
addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex+1, status);
744
uset_addString(contractions, buffer+leftIndex, rightIndex+1-leftIndex);
746
if(expansions && isSpecial(newCE) && getCETag(newCE) == EXPANSION_TAG) {
747
uset_addString(expansions, buffer+leftIndex, rightIndex+1-leftIndex);
757
static UBool U_CALLCONV
758
_processSpecials(const void *context, UChar32 start, UChar32 limit, uint32_t CE)
760
UErrorCode *status = ((contContext *)context)->status;
761
USet *expansions = ((contContext *)context)->expansions;
762
USet *removed = ((contContext *)context)->removedContractions;
763
UBool addPrefixes = ((contContext *)context)->addPrefixes;
764
UChar contraction[internalBufferSize];
766
if(((getCETag(CE) == SPEC_PROC_TAG && addPrefixes) || getCETag(CE) == CONTRACTION_TAG)) {
767
while(start < limit && U_SUCCESS(*status)) {
768
// if there are suppressed contractions, we don't
770
if(removed && uset_contains(removed, start)) {
774
// we start our contraction from middle, since we don't know if it
775
// will grow toward right or left
776
contraction[internalBufferSize/2] = (UChar)start;
777
addSpecial(((contContext *)context), contraction, internalBufferSize, CE, internalBufferSize/2, internalBufferSize/2+1, status);
780
} else if(expansions && getCETag(CE) == EXPANSION_TAG) {
781
while(start < limit && U_SUCCESS(*status)) {
782
uset_add(expansions, start++);
786
if(U_FAILURE(*status)) {
798
* Get a set containing the contractions defined by the collator. The set includes
799
* both the UCA contractions and the contractions defined by the collator
800
* @param coll collator
801
* @param conts the set to hold the result
802
* @param status to hold the error code
803
* @return the size of the contraction set
805
U_CAPI int32_t U_EXPORT2
806
ucol_getContractions( const UCollator *coll,
810
ucol_getContractionsAndExpansions(coll, contractions, NULL, FALSE, status);
811
return uset_getItemCount(contractions);
815
* Get a set containing the expansions defined by the collator. The set includes
816
* both the UCA expansions and the expansions defined by the tailoring
817
* @param coll collator
818
* @param conts the set to hold the result
819
* @param addPrefixes add the prefix contextual elements to contractions
820
* @param status to hold the error code
824
U_CAPI void U_EXPORT2
825
ucol_getContractionsAndExpansions( const UCollator *coll,
831
if(U_FAILURE(*status)) {
835
*status = U_ILLEGAL_ARGUMENT_ERROR;
840
uset_clear(contractions);
843
uset_clear(expansions);
845
int32_t rulesLen = 0;
846
const UChar* rules = ucol_getRules(coll, &rulesLen);
848
ucol_tok_initTokenList(&src, rules, rulesLen, coll->UCA, status);
850
contContext c = { NULL, contractions, expansions, src.removeSet, addPrefixes, status };
852
// Add the UCA contractions
854
utrie_enum(&coll->UCA->mapping, NULL, _processSpecials, &c);
856
// This is collator specific. Add contractions from a collator
858
c.removedContractions = NULL;
859
utrie_enum(&coll->mapping, NULL, _processSpecials, &c);
860
ucol_tok_closeTokenList(&src);
863
U_CAPI int32_t U_EXPORT2
864
ucol_getUnsafeSet( const UCollator *coll,
868
UChar buffer[internalBufferSize];
873
// cccpattern = "[[:^tccc=0:][:^lccc=0:]]", unfortunately variant
874
static const UChar cccpattern[25] = { 0x5b, 0x5b, 0x3a, 0x5e, 0x74, 0x63, 0x63, 0x63, 0x3d, 0x30, 0x3a, 0x5d,
875
0x5b, 0x3a, 0x5e, 0x6c, 0x63, 0x63, 0x63, 0x3d, 0x30, 0x3a, 0x5d, 0x5d, 0x00 };
877
// add chars that fail the fcd check
878
uset_applyPattern(unsafe, cccpattern, 24, USET_IGNORE_SPACE, status);
880
// add Thai/Lao prevowels
881
uset_addRange(unsafe, 0xe40, 0xe44);
882
uset_addRange(unsafe, 0xec0, 0xec4);
883
// add lead/trail surrogates
884
uset_addRange(unsafe, 0xd800, 0xdfff);
886
USet *contractions = uset_open(0,0);
888
int32_t i = 0, j = 0;
889
int32_t contsSize = ucol_getContractions(coll, contractions, status);
891
// Contraction set consists only of strings
892
// to get unsafe code points, we need to
893
// break the strings apart and add them to the unsafe set
894
for(i = 0; i < contsSize; i++) {
895
len = uset_getItem(contractions, i, NULL, NULL, buffer, internalBufferSize, status);
899
U16_NEXT(buffer, j, len, c);
907
uset_close(contractions);
909
return uset_size(unsafe);