Index: icu46/source/common/locresdata.cpp |
=================================================================== |
--- icu46/source/common/locresdata.cpp (revision 0) |
+++ icu46/source/common/locresdata.cpp (revision 0) |
@@ -0,0 +1,224 @@ |
+/* |
+******************************************************************************* |
+* |
+* Copyright (C) 1997-2010, International Business Machines |
+* Corporation and others. All Rights Reserved. |
+* |
+******************************************************************************* |
+* file name: loclikely.cpp |
+* encoding: US-ASCII |
+* tab size: 8 (not used) |
+* indentation:4 |
+* |
+* created on: 2010feb25 |
+* created by: Markus W. Scherer |
+* |
+* Code for miscellaneous locale-related resource bundle data access, |
+* separated out from other .cpp files |
+* that then do not depend on resource bundle code and this data. |
+*/ |
+ |
+#include "unicode/utypes.h" |
+#include "unicode/putil.h" |
+#include "unicode/uloc.h" |
+#include "unicode/ures.h" |
+#include "cstring.h" |
+#include "ulocimp.h" |
+#include "uresimp.h" |
+ |
+/* |
+ * Lookup a resource bundle table item with fallback on the table level. |
+ * Regular resource bundle lookups perform fallback to parent locale bundles |
+ * and eventually the root bundle, but only for top-level items. |
+ * This function takes the name of a top-level table and of an item in that table |
+ * and performs a lookup of both, falling back until a bundle contains a table |
+ * with this item. |
+ * |
+ * Note: Only the opening of entire bundles falls back through the default locale |
+ * before root. Once a bundle is open, item lookups do not go through the |
+ * default locale because that would result in a mix of languages that is |
+ * unpredictable to the programmer and most likely useless. |
+ */ |
+U_CAPI const UChar * U_EXPORT2 |
+uloc_getTableStringWithFallback(const char *path, const char *locale, |
+ const char *tableKey, const char *subTableKey, |
+ const char *itemKey, |
+ int32_t *pLength, |
+ UErrorCode *pErrorCode) |
+{ |
+/* char localeBuffer[ULOC_FULLNAME_CAPACITY*4];*/ |
+ UResourceBundle *rb=NULL, table, subTable; |
+ const UChar *item=NULL; |
+ UErrorCode errorCode; |
+ char explicitFallbackName[ULOC_FULLNAME_CAPACITY] = {0}; |
+ |
+ /* |
+ * open the bundle for the current locale |
+ * this falls back through the locale's chain to root |
+ */ |
+ errorCode=U_ZERO_ERROR; |
+ rb=ures_open(path, locale, &errorCode); |
+ |
+ if(U_FAILURE(errorCode)) { |
+ /* total failure, not even root could be opened */ |
+ *pErrorCode=errorCode; |
+ return NULL; |
+ } else if(errorCode==U_USING_DEFAULT_WARNING || |
+ (errorCode==U_USING_FALLBACK_WARNING && *pErrorCode!=U_USING_DEFAULT_WARNING) |
+ ) { |
+ /* set the "strongest" error code (success->fallback->default->failure) */ |
+ *pErrorCode=errorCode; |
+ } |
+ |
+ for(;;){ |
+ ures_initStackObject(&table); |
+ ures_initStackObject(&subTable); |
+ ures_getByKeyWithFallback(rb, tableKey, &table, &errorCode); |
+ |
+ if (subTableKey != NULL) { |
+ /* |
+ ures_getByKeyWithFallback(&table,subTableKey, &subTable, &errorCode); |
+ item = ures_getStringByKeyWithFallback(&subTable, itemKey, pLength, &errorCode); |
+ if(U_FAILURE(errorCode)){ |
+ *pErrorCode = errorCode; |
+ } |
+ |
+ break;*/ |
+ |
+ ures_getByKeyWithFallback(&table,subTableKey, &table, &errorCode); |
+ } |
+ if(U_SUCCESS(errorCode)){ |
+ item = ures_getStringByKeyWithFallback(&table, itemKey, pLength, &errorCode); |
+ if(U_FAILURE(errorCode)){ |
+ const char* replacement = NULL; |
+ *pErrorCode = errorCode; /*save the errorCode*/ |
+ errorCode = U_ZERO_ERROR; |
+ /* may be a deprecated code */ |
+ if(uprv_strcmp(tableKey, "Countries")==0){ |
+ replacement = uloc_getCurrentCountryID(itemKey); |
+ }else if(uprv_strcmp(tableKey, "Languages")==0){ |
+ replacement = uloc_getCurrentLanguageID(itemKey); |
+ } |
+ /*pointer comparison is ok since uloc_getCurrentCountryID & uloc_getCurrentLanguageID return the key itself is replacement is not found*/ |
+ if(replacement!=NULL && itemKey != replacement){ |
+ item = ures_getStringByKeyWithFallback(&table, replacement, pLength, &errorCode); |
+ if(U_SUCCESS(errorCode)){ |
+ *pErrorCode = errorCode; |
+ break; |
+ } |
+ } |
+ }else{ |
+ break; |
+ } |
+ } |
+ |
+ if(U_FAILURE(errorCode)){ |
+ |
+ /* still can't figure out ?.. try the fallback mechanism */ |
+ int32_t len = 0; |
+ const UChar* fallbackLocale = NULL; |
+ *pErrorCode = errorCode; |
+ errorCode = U_ZERO_ERROR; |
+ |
+ fallbackLocale = ures_getStringByKeyWithFallback(&table, "Fallback", &len, &errorCode); |
+ if(U_FAILURE(errorCode)){ |
+ *pErrorCode = errorCode; |
+ break; |
+ } |
+ |
+ u_UCharsToChars(fallbackLocale, explicitFallbackName, len); |
+ |
+ /* guard against recursive fallback */ |
+ if(uprv_strcmp(explicitFallbackName, locale)==0){ |
+ *pErrorCode = U_INTERNAL_PROGRAM_ERROR; |
+ break; |
+ } |
+ ures_close(rb); |
+ rb = ures_open(path, explicitFallbackName, &errorCode); |
+ if(U_FAILURE(errorCode)){ |
+ *pErrorCode = errorCode; |
+ break; |
+ } |
+ /* succeeded in opening the fallback bundle .. continue and try to fetch the item */ |
+ }else{ |
+ break; |
+ } |
+ } |
+ /* done with the locale string - ready to close table and rb */ |
+ ures_close(&subTable); |
+ ures_close(&table); |
+ ures_close(rb); |
+ return item; |
+} |
+ |
+static ULayoutType |
+_uloc_getOrientationHelper(const char* localeId, |
+ const char* key, |
+ UErrorCode *status) |
+{ |
+ ULayoutType result = ULOC_LAYOUT_UNKNOWN; |
+ |
+ if (!U_FAILURE(*status)) { |
+ int32_t length = 0; |
+ char localeBuffer[ULOC_FULLNAME_CAPACITY]; |
+ |
+ uloc_canonicalize(localeId, localeBuffer, sizeof(localeBuffer), status); |
+ |
+ if (!U_FAILURE(*status)) { |
+ const UChar* const value = |
+ uloc_getTableStringWithFallback( |
+ NULL, |
+ localeBuffer, |
+ "layout", |
+ NULL, |
+ key, |
+ &length, |
+ status); |
+ |
+ if (!U_FAILURE(*status) && length != 0) { |
+ switch(value[0]) |
+ { |
+ case 0x0062: /* 'b' */ |
+ result = ULOC_LAYOUT_BTT; |
+ break; |
+ case 0x006C: /* 'l' */ |
+ result = ULOC_LAYOUT_LTR; |
+ break; |
+ case 0x0072: /* 'r' */ |
+ result = ULOC_LAYOUT_RTL; |
+ break; |
+ case 0x0074: /* 't' */ |
+ result = ULOC_LAYOUT_TTB; |
+ break; |
+ default: |
+ *status = U_INTERNAL_PROGRAM_ERROR; |
+ break; |
+ } |
+ } |
+ } |
+ } |
+ |
+ return result; |
+} |
+ |
+U_DRAFT ULayoutType U_EXPORT2 |
+uloc_getCharacterOrientation(const char* localeId, |
+ UErrorCode *status) |
+{ |
+ return _uloc_getOrientationHelper(localeId, "characters", status); |
+} |
+ |
+/** |
+ * Get the layout line orientation for the specified locale. |
+ * |
+ * @param localeID locale name |
+ * @param status Error status |
+ * @return an enum indicating the layout orientation for lines. |
+ * @stable ICU 4.0 |
+ */ |
+U_DRAFT ULayoutType U_EXPORT2 |
+uloc_getLineOrientation(const char* localeId, |
+ UErrorCode *status) |
+{ |
+ return _uloc_getOrientationHelper(localeId, "lines", status); |
+} |
Property changes on: icu46/source/common/locresdata.cpp |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |