Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(260)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: icu46/source/i18n/ucol_sit.cpp

Issue 5516007: Check in the pristine copy of ICU 4.6... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 10 years ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « icu46/source/i18n/ucol_res.cpp ('k') | icu46/source/i18n/ucol_tok.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: icu46/source/i18n/ucol_sit.cpp
===================================================================
--- icu46/source/i18n/ucol_sit.cpp (revision 0)
+++ icu46/source/i18n/ucol_sit.cpp (revision 0)
@@ -0,0 +1,911 @@
+/*
+*******************************************************************************
+* Copyright (C) 2004-2010, International Business Machines
+* Corporation and others. All Rights Reserved.
+*******************************************************************************
+* file name: ucol_sit.cpp
+* encoding: US-ASCII
+* tab size: 8 (not used)
+* indentation:4
+*
+* Modification history
+* Date Name Comments
+* 03/12/2004 weiv Creation
+*/
+
+#include "unicode/ustring.h"
+#include "unicode/udata.h"
+
+#include "utracimp.h"
+#include "ucol_imp.h"
+#include "ucol_tok.h"
+#include "cmemory.h"
+#include "cstring.h"
+#include "uresimp.h"
+
+#if !UCONFIG_NO_COLLATION
+
+enum OptionsList {
+ UCOL_SIT_LANGUAGE = 0,
+ UCOL_SIT_SCRIPT,
+ UCOL_SIT_REGION,
+ UCOL_SIT_VARIANT,
+ UCOL_SIT_KEYWORD,
+ UCOL_SIT_BCP47,
+ UCOL_SIT_STRENGTH,
+ UCOL_SIT_CASE_LEVEL,
+ UCOL_SIT_CASE_FIRST,
+ UCOL_SIT_NUMERIC_COLLATION,
+ UCOL_SIT_ALTERNATE_HANDLING,
+ UCOL_SIT_NORMALIZATION_MODE,
+ UCOL_SIT_FRENCH_COLLATION,
+ UCOL_SIT_HIRAGANA_QUATERNARY,
+ UCOL_SIT_VARIABLE_TOP,
+ UCOL_SIT_VARIABLE_TOP_VALUE,
+ UCOL_SIT_ITEMS_COUNT
+};
+
+/* option starters chars. */
+static const char alternateHArg = 'A';
+static const char variableTopValArg = 'B';
+static const char caseFirstArg = 'C';
+static const char numericCollArg = 'D';
+static const char caseLevelArg = 'E';
+static const char frenchCollArg = 'F';
+static const char hiraganaQArg = 'H';
+static const char keywordArg = 'K';
+static const char languageArg = 'L';
+static const char normArg = 'N';
+static const char regionArg = 'R';
+static const char strengthArg = 'S';
+static const char variableTopArg = 'T';
+static const char variantArg = 'V';
+static const char RFC3066Arg = 'X';
+static const char scriptArg = 'Z';
+
+static const char collationKeyword[] = "@collation=";
+
+static const int32_t locElementCount = 5;
+static const int32_t locElementCapacity = 32;
+static const int32_t loc3066Capacity = 256;
+static const int32_t internalBufferSize = 512;
+
+/* structure containing specification of a collator. Initialized
+ * from a short string. Also used to construct a short string from a
+ * collator instance
+ */
+struct CollatorSpec {
+ char locElements[locElementCount][locElementCapacity];
+ char locale[loc3066Capacity];
+ UColAttributeValue options[UCOL_ATTRIBUTE_COUNT];
+ uint32_t variableTopValue;
+ UChar variableTopString[locElementCapacity];
+ int32_t variableTopStringLen;
+ UBool variableTopSet;
+ struct {
+ const char *start;
+ int32_t len;
+ } entries[UCOL_SIT_ITEMS_COUNT];
+};
+
+
+/* structure for converting between character attribute
+ * representation and real collation attribute value.
+ */
+struct AttributeConversion {
+ char letter;
+ UColAttributeValue value;
+};
+
+static const AttributeConversion conversions[12] = {
+ { '1', UCOL_PRIMARY },
+ { '2', UCOL_SECONDARY },
+ { '3', UCOL_TERTIARY },
+ { '4', UCOL_QUATERNARY },
+ { 'D', UCOL_DEFAULT },
+ { 'I', UCOL_IDENTICAL },
+ { 'L', UCOL_LOWER_FIRST },
+ { 'N', UCOL_NON_IGNORABLE },
+ { 'O', UCOL_ON },
+ { 'S', UCOL_SHIFTED },
+ { 'U', UCOL_UPPER_FIRST },
+ { 'X', UCOL_OFF }
+};
+
+
+static char
+ucol_sit_attributeValueToLetter(UColAttributeValue value, UErrorCode *status) {
+ uint32_t i = 0;
+ for(i = 0; i < sizeof(conversions)/sizeof(conversions[0]); i++) {
+ if(conversions[i].value == value) {
+ return conversions[i].letter;
+ }
+ }
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+}
+
+static UColAttributeValue
+ucol_sit_letterToAttributeValue(char letter, UErrorCode *status) {
+ uint32_t i = 0;
+ for(i = 0; i < sizeof(conversions)/sizeof(conversions[0]); i++) {
+ if(conversions[i].letter == letter) {
+ return conversions[i].value;
+ }
+ }
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return UCOL_DEFAULT;
+}
+
+/* function prototype for functions used to parse a short string */
+U_CDECL_BEGIN
+typedef const char* U_CALLCONV
+ActionFunction(CollatorSpec *spec, uint32_t value1, const char* string,
+ UErrorCode *status);
+U_CDECL_END
+
+U_CDECL_BEGIN
+static const char* U_CALLCONV
+_processLocaleElement(CollatorSpec *spec, uint32_t value, const char* string,
+ UErrorCode *status)
+{
+ int32_t len = 0;
+ do {
+ if(value == 0 || value == 4) {
+ spec->locElements[value][len++] = uprv_tolower(*string);
+ } else {
+ spec->locElements[value][len++] = *string;
+ }
+ } while(*(++string) != '_' && *string && len < locElementCapacity);
+ if(len >= locElementCapacity) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ return string;
+ }
+ // don't skip the underscore at the end
+ return string;
+}
+U_CDECL_END
+
+U_CDECL_BEGIN
+static const char* U_CALLCONV
+_processRFC3066Locale(CollatorSpec *spec, uint32_t, const char* string,
+ UErrorCode *status)
+{
+ char terminator = *string;
+ string++;
+ const char *end = uprv_strchr(string+1, terminator);
+ if(end == NULL || end - string >= loc3066Capacity) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ return string;
+ } else {
+ uprv_strncpy(spec->locale, string, end-string);
+ return end+1;
+ }
+}
+
+U_CDECL_END
+
+U_CDECL_BEGIN
+static const char* U_CALLCONV
+_processCollatorOption(CollatorSpec *spec, uint32_t option, const char* string,
+ UErrorCode *status)
+{
+ spec->options[option] = ucol_sit_letterToAttributeValue(*string, status);
+ if((*(++string) != '_' && *string) || U_FAILURE(*status)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ return string;
+}
+U_CDECL_END
+
+
+static UChar
+readHexCodeUnit(const char **string, UErrorCode *status)
+{
+ UChar result = 0;
+ int32_t value = 0;
+ char c;
+ int32_t noDigits = 0;
+ while((c = **string) != 0 && noDigits < 4) {
+ if( c >= '0' && c <= '9') {
+ value = c - '0';
+ } else if ( c >= 'a' && c <= 'f') {
+ value = c - 'a' + 10;
+ } else if ( c >= 'A' && c <= 'F') {
+ value = c - 'A' + 10;
+ } else {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+ result = (result << 4) | (UChar)value;
+ noDigits++;
+ (*string)++;
+ }
+ // if the string was terminated before we read 4 digits, set an error
+ if(noDigits < 4) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ return result;
+}
+
+U_CDECL_BEGIN
+static const char* U_CALLCONV
+_processVariableTop(CollatorSpec *spec, uint32_t value1, const char* string, UErrorCode *status)
+{
+ // get four digits
+ int32_t i = 0;
+ if(!value1) {
+ while(U_SUCCESS(*status) && i < locElementCapacity && *string != 0 && *string != '_') {
+ spec->variableTopString[i++] = readHexCodeUnit(&string, status);
+ }
+ spec->variableTopStringLen = i;
+ if(i == locElementCapacity && (*string != 0 || *string != '_')) {
+ *status = U_BUFFER_OVERFLOW_ERROR;
+ }
+ } else {
+ spec->variableTopValue = readHexCodeUnit(&string, status);
+ }
+ if(U_SUCCESS(*status)) {
+ spec->variableTopSet = TRUE;
+ }
+ return string;
+}
+U_CDECL_END
+
+
+/* Table for parsing short strings */
+struct ShortStringOptions {
+ char optionStart;
+ ActionFunction *action;
+ uint32_t attr;
+};
+
+static const ShortStringOptions options[UCOL_SIT_ITEMS_COUNT] =
+{
+/* 10 ALTERNATE_HANDLING */ {alternateHArg, _processCollatorOption, UCOL_ALTERNATE_HANDLING }, // alternate N, S, D
+/* 15 VARIABLE_TOP_VALUE */ {variableTopValArg, _processVariableTop, 1 },
+/* 08 CASE_FIRST */ {caseFirstArg, _processCollatorOption, UCOL_CASE_FIRST }, // case first L, U, X, D
+/* 09 NUMERIC_COLLATION */ {numericCollArg, _processCollatorOption, UCOL_NUMERIC_COLLATION }, // codan O, X, D
+/* 07 CASE_LEVEL */ {caseLevelArg, _processCollatorOption, UCOL_CASE_LEVEL }, // case level O, X, D
+/* 12 FRENCH_COLLATION */ {frenchCollArg, _processCollatorOption, UCOL_FRENCH_COLLATION }, // french O, X, D
+/* 13 HIRAGANA_QUATERNARY] */ {hiraganaQArg, _processCollatorOption, UCOL_HIRAGANA_QUATERNARY_MODE }, // hiragana O, X, D
+/* 04 KEYWORD */ {keywordArg, _processLocaleElement, 4 }, // keyword
+/* 00 LANGUAGE */ {languageArg, _processLocaleElement, 0 }, // language
+/* 11 NORMALIZATION_MODE */ {normArg, _processCollatorOption, UCOL_NORMALIZATION_MODE }, // norm O, X, D
+/* 02 REGION */ {regionArg, _processLocaleElement, 2 }, // region
+/* 06 STRENGTH */ {strengthArg, _processCollatorOption, UCOL_STRENGTH }, // strength 1, 2, 3, 4, I, D
+/* 14 VARIABLE_TOP */ {variableTopArg, _processVariableTop, 0 },
+/* 03 VARIANT */ {variantArg, _processLocaleElement, 3 }, // variant
+/* 05 RFC3066BIS */ {RFC3066Arg, _processRFC3066Locale, 0 }, // rfc3066bis locale name
+/* 01 SCRIPT */ {scriptArg, _processLocaleElement, 1 } // script
+};
+
+
+static
+const char* ucol_sit_readOption(const char *start, CollatorSpec *spec,
+ UErrorCode *status)
+{
+ int32_t i = 0;
+
+ for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
+ if(*start == options[i].optionStart) {
+ spec->entries[i].start = start;
+ const char* end = options[i].action(spec, options[i].attr, start+1, status);
+ spec->entries[i].len = (int32_t)(end - start);
+ return end;
+ }
+ }
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return start;
+}
+
+static
+void ucol_sit_initCollatorSpecs(CollatorSpec *spec)
+{
+ // reset everything
+ uprv_memset(spec, 0, sizeof(CollatorSpec));
+ // set collation options to default
+ int32_t i = 0;
+ for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
+ spec->options[i] = UCOL_DEFAULT;
+ }
+}
+
+static const char*
+ucol_sit_readSpecs(CollatorSpec *s, const char *string,
+ UParseError *parseError, UErrorCode *status)
+{
+ const char *definition = string;
+ while(U_SUCCESS(*status) && *string) {
+ string = ucol_sit_readOption(string, s, status);
+ // advance over '_'
+ while(*string && *string == '_') {
+ string++;
+ }
+ }
+ if(U_FAILURE(*status)) {
+ parseError->offset = (int32_t)(string - definition);
+ }
+ return string;
+}
+
+static
+int32_t ucol_sit_dumpSpecs(CollatorSpec *s, char *destination, int32_t capacity, UErrorCode *status)
+{
+ int32_t i = 0, j = 0;
+ int32_t len = 0;
+ char optName;
+ if(U_SUCCESS(*status)) {
+ for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
+ if(s->entries[i].start) {
+ if(len) {
+ if(len < capacity) {
+ uprv_strcat(destination, "_");
+ }
+ len++;
+ }
+ optName = *(s->entries[i].start);
+ if(optName == languageArg || optName == regionArg || optName == variantArg || optName == keywordArg) {
+ for(j = 0; j < s->entries[i].len; j++) {
+ if(len + j < capacity) {
+ destination[len+j] = uprv_toupper(*(s->entries[i].start+j));
+ }
+ }
+ len += s->entries[i].len;
+ } else {
+ len += s->entries[i].len;
+ if(len < capacity) {
+ uprv_strncat(destination,s->entries[i].start, s->entries[i].len);
+ }
+ }
+ }
+ }
+ return len;
+ } else {
+ return 0;
+ }
+}
+
+static void
+ucol_sit_calculateWholeLocale(CollatorSpec *s) {
+ // put the locale together, unless we have a done
+ // locale
+ if(s->locale[0] == 0) {
+ // first the language
+ uprv_strcat(s->locale, s->locElements[0]);
+ // then the script, if present
+ if(*(s->locElements[1])) {
+ uprv_strcat(s->locale, "_");
+ uprv_strcat(s->locale, s->locElements[1]);
+ }
+ // then the region, if present
+ if(*(s->locElements[2])) {
+ uprv_strcat(s->locale, "_");
+ uprv_strcat(s->locale, s->locElements[2]);
+ } else if(*(s->locElements[3])) { // if there is a variant, we need an underscore
+ uprv_strcat(s->locale, "_");
+ }
+ // add variant, if there
+ if(*(s->locElements[3])) {
+ uprv_strcat(s->locale, "_");
+ uprv_strcat(s->locale, s->locElements[3]);
+ }
+
+ // if there is a collation keyword, add that too
+ if(*(s->locElements[4])) {
+ uprv_strcat(s->locale, collationKeyword);
+ uprv_strcat(s->locale, s->locElements[4]);
+ }
+ }
+}
+
+
+U_CAPI void U_EXPORT2
+ucol_prepareShortStringOpen( const char *definition,
+ UBool,
+ UParseError *parseError,
+ UErrorCode *status)
+{
+ if(U_FAILURE(*status)) return;
+
+ UParseError internalParseError;
+
+ if(!parseError) {
+ parseError = &internalParseError;
+ }
+ parseError->line = 0;
+ parseError->offset = 0;
+ parseError->preContext[0] = 0;
+ parseError->postContext[0] = 0;
+
+
+ // first we want to pick stuff out of short string.
+ // we'll end up with an UCA version, locale and a bunch of
+ // settings
+
+ // analyse the string in order to get everything we need.
+ CollatorSpec s;
+ ucol_sit_initCollatorSpecs(&s);
+ ucol_sit_readSpecs(&s, definition, parseError, status);
+ ucol_sit_calculateWholeLocale(&s);
+
+ char buffer[internalBufferSize];
+ uprv_memset(buffer, 0, internalBufferSize);
+ uloc_canonicalize(s.locale, buffer, internalBufferSize, status);
+
+ UResourceBundle *b = ures_open(U_ICUDATA_COLL, buffer, status);
+ /* we try to find stuff from keyword */
+ UResourceBundle *collations = ures_getByKey(b, "collations", NULL, status);
+ UResourceBundle *collElem = NULL;
+ char keyBuffer[256];
+ // if there is a keyword, we pick it up and try to get elements
+ if(!uloc_getKeywordValue(buffer, "collation", keyBuffer, 256, status)) {
+ // no keyword. we try to find the default setting, which will give us the keyword value
+ UResourceBundle *defaultColl = ures_getByKeyWithFallback(collations, "default", NULL, status);
+ if(U_SUCCESS(*status)) {
+ int32_t defaultKeyLen = 0;
+ const UChar *defaultKey = ures_getString(defaultColl, &defaultKeyLen, status);
+ u_UCharsToChars(defaultKey, keyBuffer, defaultKeyLen);
+ keyBuffer[defaultKeyLen] = 0;
+ } else {
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ ures_close(defaultColl);
+ }
+ collElem = ures_getByKeyWithFallback(collations, keyBuffer, collElem, status);
+ ures_close(collElem);
+ ures_close(collations);
+ ures_close(b);
+}
+
+
+U_CAPI UCollator* U_EXPORT2
+ucol_openFromShortString( const char *definition,
+ UBool forceDefaults,
+ UParseError *parseError,
+ UErrorCode *status)
+{
+ UTRACE_ENTRY_OC(UTRACE_UCOL_OPEN_FROM_SHORT_STRING);
+ UTRACE_DATA1(UTRACE_INFO, "short string = \"%s\"", definition);
+
+ if(U_FAILURE(*status)) return 0;
+
+ UParseError internalParseError;
+
+ if(!parseError) {
+ parseError = &internalParseError;
+ }
+ parseError->line = 0;
+ parseError->offset = 0;
+ parseError->preContext[0] = 0;
+ parseError->postContext[0] = 0;
+
+
+ // first we want to pick stuff out of short string.
+ // we'll end up with an UCA version, locale and a bunch of
+ // settings
+
+ // analyse the string in order to get everything we need.
+ const char *string = definition;
+ CollatorSpec s;
+ ucol_sit_initCollatorSpecs(&s);
+ string = ucol_sit_readSpecs(&s, definition, parseError, status);
+ ucol_sit_calculateWholeLocale(&s);
+
+ char buffer[internalBufferSize];
+ uprv_memset(buffer, 0, internalBufferSize);
+ uloc_canonicalize(s.locale, buffer, internalBufferSize, status);
+
+ UCollator *result = ucol_open(buffer, status);
+ int32_t i = 0;
+
+ for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
+ if(s.options[i] != UCOL_DEFAULT) {
+ if(forceDefaults || ucol_getAttribute(result, (UColAttribute)i, status) != s.options[i]) {
+ ucol_setAttribute(result, (UColAttribute)i, s.options[i], status);
+ }
+
+ if(U_FAILURE(*status)) {
+ parseError->offset = (int32_t)(string - definition);
+ ucol_close(result);
+ return NULL;
+ }
+
+ }
+ }
+ if(s.variableTopSet) {
+ if(s.variableTopString[0]) {
+ ucol_setVariableTop(result, s.variableTopString, s.variableTopStringLen, status);
+ } else { // we set by value, using 'B'
+ ucol_restoreVariableTop(result, s.variableTopValue, status);
+ }
+ }
+
+
+ if(U_FAILURE(*status)) { // here it can only be a bogus value
+ ucol_close(result);
+ result = NULL;
+ }
+
+ UTRACE_EXIT_PTR_STATUS(result, *status);
+ return result;
+}
+
+
+static void appendShortStringElement(const char *src, int32_t len, char *result, int32_t *resultSize, int32_t capacity, char arg)
+{
+ if(len) {
+ if(*resultSize) {
+ if(*resultSize < capacity) {
+ uprv_strcat(result, "_");
+ }
+ (*resultSize)++;
+ }
+ *resultSize += len + 1;
+ if(*resultSize < capacity) {
+ uprv_strncat(result, &arg, 1);
+ uprv_strncat(result, src, len);
+ }
+ }
+}
+
+U_CAPI int32_t U_EXPORT2
+ucol_getShortDefinitionString(const UCollator *coll,
+ const char *locale,
+ char *dst,
+ int32_t capacity,
+ UErrorCode *status)
+{
+ if(U_FAILURE(*status)) return 0;
+ char buffer[internalBufferSize];
+ uprv_memset(buffer, 0, internalBufferSize*sizeof(char));
+ int32_t resultSize = 0;
+ char tempbuff[internalBufferSize];
+ char locBuff[internalBufferSize];
+ uprv_memset(buffer, 0, internalBufferSize*sizeof(char));
+ int32_t elementSize = 0;
+ UBool isAvailable = 0;
+ CollatorSpec s;
+ ucol_sit_initCollatorSpecs(&s);
+
+ if(!locale) {
+ locale = ucol_getLocaleByType(coll, ULOC_VALID_LOCALE, status);
+ }
+ elementSize = ucol_getFunctionalEquivalent(locBuff, internalBufferSize, "collation", locale, &isAvailable, status);
+
+ if(elementSize) {
+ // we should probably canonicalize here...
+ elementSize = uloc_getLanguage(locBuff, tempbuff, internalBufferSize, status);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, languageArg);
+ elementSize = uloc_getCountry(locBuff, tempbuff, internalBufferSize, status);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, regionArg);
+ elementSize = uloc_getScript(locBuff, tempbuff, internalBufferSize, status);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, scriptArg);
+ elementSize = uloc_getVariant(locBuff, tempbuff, internalBufferSize, status);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, variantArg);
+ elementSize = uloc_getKeywordValue(locBuff, "collation", tempbuff, internalBufferSize, status);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, /*capacity*/internalBufferSize, keywordArg);
+ }
+
+ int32_t i = 0;
+ UColAttributeValue attribute = UCOL_DEFAULT;
+ for(i = 0; i < UCOL_SIT_ITEMS_COUNT; i++) {
+ if(options[i].action == _processCollatorOption) {
+ attribute = ucol_getAttributeOrDefault(coll, (UColAttribute)options[i].attr, status);
+ if(attribute != UCOL_DEFAULT) {
+ char letter = ucol_sit_attributeValueToLetter(attribute, status);
+ appendShortStringElement(&letter, 1,
+ buffer, &resultSize, /*capacity*/internalBufferSize, options[i].optionStart);
+ }
+ }
+ }
+ if(coll->variableTopValueisDefault == FALSE) {
+ //s.variableTopValue = ucol_getVariableTop(coll, status);
+ elementSize = T_CString_integerToString(tempbuff, coll->variableTopValue, 16);
+ appendShortStringElement(tempbuff, elementSize, buffer, &resultSize, capacity, variableTopValArg);
+ }
+
+ UParseError parseError;
+ return ucol_normalizeShortDefinitionString(buffer, dst, capacity, &parseError, status);
+}
+
+U_CAPI int32_t U_EXPORT2
+ucol_normalizeShortDefinitionString(const char *definition,
+ char *destination,
+ int32_t capacity,
+ UParseError *parseError,
+ UErrorCode *status)
+{
+
+ if(U_FAILURE(*status)) {
+ return 0;
+ }
+
+ if(destination) {
+ uprv_memset(destination, 0, capacity*sizeof(char));
+ }
+
+ UParseError pe;
+ if(!parseError) {
+ parseError = &pe;
+ }
+
+ // validate
+ CollatorSpec s;
+ ucol_sit_initCollatorSpecs(&s);
+ ucol_sit_readSpecs(&s, definition, parseError, status);
+ return ucol_sit_dumpSpecs(&s, destination, capacity, status);
+}
+
+U_CAPI UColAttributeValue U_EXPORT2
+ucol_getAttributeOrDefault(const UCollator *coll, UColAttribute attr, UErrorCode *status)
+{
+ if(U_FAILURE(*status) || coll == NULL) {
+ return UCOL_DEFAULT;
+ }
+ switch(attr) {
+ case UCOL_NUMERIC_COLLATION:
+ return coll->numericCollationisDefault?UCOL_DEFAULT:coll->numericCollation;
+ case UCOL_HIRAGANA_QUATERNARY_MODE:
+ return coll->hiraganaQisDefault?UCOL_DEFAULT:coll->hiraganaQ;
+ case UCOL_FRENCH_COLLATION: /* attribute for direction of secondary weights*/
+ return coll->frenchCollationisDefault?UCOL_DEFAULT:coll->frenchCollation;
+ case UCOL_ALTERNATE_HANDLING: /* attribute for handling variable elements*/
+ return coll->alternateHandlingisDefault?UCOL_DEFAULT:coll->alternateHandling;
+ case UCOL_CASE_FIRST: /* who goes first, lower case or uppercase */
+ return coll->caseFirstisDefault?UCOL_DEFAULT:coll->caseFirst;
+ case UCOL_CASE_LEVEL: /* do we have an extra case level */
+ return coll->caseLevelisDefault?UCOL_DEFAULT:coll->caseLevel;
+ case UCOL_NORMALIZATION_MODE: /* attribute for normalization */
+ return coll->normalizationModeisDefault?UCOL_DEFAULT:coll->normalizationMode;
+ case UCOL_STRENGTH: /* attribute for strength */
+ return coll->strengthisDefault?UCOL_DEFAULT:coll->strength;
+ case UCOL_ATTRIBUTE_COUNT:
+ default:
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ break;
+ }
+ return UCOL_DEFAULT;
+}
+
+
+struct contContext {
+ const UCollator *coll;
+ USet *conts;
+ USet *expansions;
+ USet *removedContractions;
+ UBool addPrefixes;
+ UErrorCode *status;
+};
+
+
+
+static void
+addSpecial(contContext *context, UChar *buffer, int32_t bufLen,
+ uint32_t CE, int32_t leftIndex, int32_t rightIndex, UErrorCode *status)
+{
+ const UCollator *coll = context->coll;
+ USet *contractions = context->conts;
+ USet *expansions = context->expansions;
+ UBool addPrefixes = context->addPrefixes;
+
+ const UChar *UCharOffset = (UChar *)coll->image+getContractOffset(CE);
+ uint32_t newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
+ // we might have a contraction that ends from previous level
+ if(newCE != UCOL_NOT_FOUND) {
+ if(isSpecial(CE) && getCETag(CE) == CONTRACTION_TAG && isSpecial(newCE) && getCETag(newCE) == SPEC_PROC_TAG && addPrefixes) {
+ addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex, status);
+ }
+ if(contractions && rightIndex-leftIndex > 1) {
+ uset_addString(contractions, buffer+leftIndex, rightIndex-leftIndex);
+ if(expansions && isSpecial(CE) && getCETag(CE) == EXPANSION_TAG) {
+ uset_addString(expansions, buffer+leftIndex, rightIndex-leftIndex);
+ }
+ }
+ }
+
+ UCharOffset++;
+ // check whether we're doing contraction or prefix
+ if(getCETag(CE) == SPEC_PROC_TAG && addPrefixes) {
+ if(leftIndex == 0) {
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ --leftIndex;
+ while(*UCharOffset != 0xFFFF) {
+ newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
+ buffer[leftIndex] = *UCharOffset;
+ if(isSpecial(newCE) && (getCETag(newCE) == CONTRACTION_TAG || getCETag(newCE) == SPEC_PROC_TAG)) {
+ addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex, status);
+ } else {
+ if(contractions) {
+ uset_addString(contractions, buffer+leftIndex, rightIndex-leftIndex);
+ }
+ if(expansions && isSpecial(newCE) && getCETag(newCE) == EXPANSION_TAG) {
+ uset_addString(expansions, buffer+leftIndex, rightIndex-leftIndex);
+ }
+ }
+ UCharOffset++;
+ }
+ } else if(getCETag(CE) == CONTRACTION_TAG) {
+ if(rightIndex == bufLen-1) {
+ *status = U_INTERNAL_PROGRAM_ERROR;
+ return;
+ }
+ while(*UCharOffset != 0xFFFF) {
+ newCE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
+ buffer[rightIndex] = *UCharOffset;
+ if(isSpecial(newCE) && (getCETag(newCE) == CONTRACTION_TAG || getCETag(newCE) == SPEC_PROC_TAG)) {
+ addSpecial(context, buffer, bufLen, newCE, leftIndex, rightIndex+1, status);
+ } else {
+ if(contractions) {
+ uset_addString(contractions, buffer+leftIndex, rightIndex+1-leftIndex);
+ }
+ if(expansions && isSpecial(newCE) && getCETag(newCE) == EXPANSION_TAG) {
+ uset_addString(expansions, buffer+leftIndex, rightIndex+1-leftIndex);
+ }
+ }
+ UCharOffset++;
+ }
+ }
+
+}
+
+U_CDECL_BEGIN
+static UBool U_CALLCONV
+_processSpecials(const void *context, UChar32 start, UChar32 limit, uint32_t CE)
+{
+ UErrorCode *status = ((contContext *)context)->status;
+ USet *expansions = ((contContext *)context)->expansions;
+ USet *removed = ((contContext *)context)->removedContractions;
+ UBool addPrefixes = ((contContext *)context)->addPrefixes;
+ UChar contraction[internalBufferSize];
+ if(isSpecial(CE)) {
+ if(((getCETag(CE) == SPEC_PROC_TAG && addPrefixes) || getCETag(CE) == CONTRACTION_TAG)) {
+ while(start < limit && U_SUCCESS(*status)) {
+ // if there are suppressed contractions, we don't
+ // want to add them.
+ if(removed && uset_contains(removed, start)) {
+ start++;
+ continue;
+ }
+ // we start our contraction from middle, since we don't know if it
+ // will grow toward right or left
+ contraction[internalBufferSize/2] = (UChar)start;
+ addSpecial(((contContext *)context), contraction, internalBufferSize, CE, internalBufferSize/2, internalBufferSize/2+1, status);
+ start++;
+ }
+ } else if(expansions && getCETag(CE) == EXPANSION_TAG) {
+ while(start < limit && U_SUCCESS(*status)) {
+ uset_add(expansions, start++);
+ }
+ }
+ }
+ if(U_FAILURE(*status)) {
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+}
+
+U_CDECL_END
+
+
+
+/**
+ * Get a set containing the contractions defined by the collator. The set includes
+ * both the UCA contractions and the contractions defined by the collator
+ * @param coll collator
+ * @param conts the set to hold the result
+ * @param status to hold the error code
+ * @return the size of the contraction set
+ */
+U_CAPI int32_t U_EXPORT2
+ucol_getContractions( const UCollator *coll,
+ USet *contractions,
+ UErrorCode *status)
+{
+ ucol_getContractionsAndExpansions(coll, contractions, NULL, FALSE, status);
+ return uset_getItemCount(contractions);
+}
+
+/**
+ * Get a set containing the expansions defined by the collator. The set includes
+ * both the UCA expansions and the expansions defined by the tailoring
+ * @param coll collator
+ * @param conts the set to hold the result
+ * @param addPrefixes add the prefix contextual elements to contractions
+ * @param status to hold the error code
+ *
+ * @draft ICU 3.4
+ */
+U_CAPI void U_EXPORT2
+ucol_getContractionsAndExpansions( const UCollator *coll,
+ USet *contractions,
+ USet *expansions,
+ UBool addPrefixes,
+ UErrorCode *status)
+{
+ if(U_FAILURE(*status)) {
+ return;
+ }
+ if(coll == NULL) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ if(contractions) {
+ uset_clear(contractions);
+ }
+ if(expansions) {
+ uset_clear(expansions);
+ }
+ int32_t rulesLen = 0;
+ const UChar* rules = ucol_getRules(coll, &rulesLen);
+ UColTokenParser src;
+ ucol_tok_initTokenList(&src, rules, rulesLen, coll->UCA,
+ ucol_tok_getRulesFromBundle, NULL, status);
+
+ contContext c = { NULL, contractions, expansions, src.removeSet, addPrefixes, status };
+
+ // Add the UCA contractions
+ c.coll = coll->UCA;
+ utrie_enum(&coll->UCA->mapping, NULL, _processSpecials, &c);
+
+ // This is collator specific. Add contractions from a collator
+ c.coll = coll;
+ c.removedContractions = NULL;
+ utrie_enum(&coll->mapping, NULL, _processSpecials, &c);
+ ucol_tok_closeTokenList(&src);
+}
+
+U_CAPI int32_t U_EXPORT2
+ucol_getUnsafeSet( const UCollator *coll,
+ USet *unsafe,
+ UErrorCode *status)
+{
+ UChar buffer[internalBufferSize];
+ int32_t len = 0;
+
+ uset_clear(unsafe);
+
+ // cccpattern = "[[:^tccc=0:][:^lccc=0:]]", unfortunately variant
+ static const UChar cccpattern[25] = { 0x5b, 0x5b, 0x3a, 0x5e, 0x74, 0x63, 0x63, 0x63, 0x3d, 0x30, 0x3a, 0x5d,
+ 0x5b, 0x3a, 0x5e, 0x6c, 0x63, 0x63, 0x63, 0x3d, 0x30, 0x3a, 0x5d, 0x5d, 0x00 };
+
+ // add chars that fail the fcd check
+ uset_applyPattern(unsafe, cccpattern, 24, USET_IGNORE_SPACE, status);
+
+ // add Thai/Lao prevowels
+ uset_addRange(unsafe, 0xe40, 0xe44);
+ uset_addRange(unsafe, 0xec0, 0xec4);
+ // add lead/trail surrogates
+ uset_addRange(unsafe, 0xd800, 0xdfff);
+
+ USet *contractions = uset_open(0,0);
+
+ int32_t i = 0, j = 0;
+ int32_t contsSize = ucol_getContractions(coll, contractions, status);
+ UChar32 c = 0;
+ // Contraction set consists only of strings
+ // to get unsafe code points, we need to
+ // break the strings apart and add them to the unsafe set
+ for(i = 0; i < contsSize; i++) {
+ len = uset_getItem(contractions, i, NULL, NULL, buffer, internalBufferSize, status);
+ if(len > 0) {
+ j = 0;
+ while(j < len) {
+ U16_NEXT(buffer, j, len, c);
+ if(j < len) {
+ uset_add(unsafe, c);
+ }
+ }
+ }
+ }
+
+ uset_close(contractions);
+
+ return uset_size(unsafe);
+}
+#endif
Property changes on: icu46/source/i18n/ucol_sit.cpp
___________________________________________________________________
Added: svn:eol-style
+ LF
« no previous file with comments | « icu46/source/i18n/ucol_res.cpp ('k') | icu46/source/i18n/ucol_tok.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698