1 /* 2 ********************************************************************** 3 * Copyright (C) 2000-2010, International Business Machines 4 * Corporation and others. All Rights Reserved. 5 ********************************************************************** 6 */ 7 8 #ifndef URESIMP_H 9 #define URESIMP_H 10 11 #include "unicode/ures.h" 12 13 #include "uresdata.h" 14 15 #define kRootLocaleName "root" 16 #define kPoolBundleName "pool" 17 18 /* 19 The default minor version and the version separator must be exactly one 20 character long. 21 */ 22 23 #define kDefaultMinorVersion "0" 24 #define kVersionSeparator "." 25 #define kVersionTag "Version" 26 27 #define MAGIC1 19700503 28 #define MAGIC2 19641227 29 30 #define URES_MAX_ALIAS_LEVEL 256 31 #define URES_MAX_BUFFER_SIZE 256 32 33 /* 34 enum UResEntryType { 35 ENTRY_OK = 0, 36 ENTRY_GOTO_ROOT = 1, 37 ENTRY_GOTO_DEFAULT = 2, 38 ENTRY_INVALID = 3 39 }; 40 41 typedef enum UResEntryType UResEntryType; 42 */ 43 44 struct UResourceDataEntry; 45 typedef struct UResourceDataEntry UResourceDataEntry; 46 47 /* 48 * Note: If we wanted to make this structure smaller, then we could try 49 * to use one UResourceDataEntry pointer for fAlias and fPool, with a separate 50 * flag to distinguish whether this struct is for a real bundle with a pool, 51 * or for an alias entry for which we won't use the pool after loading. 52 */ 53 struct UResourceDataEntry { 54 char *fName; /* name of the locale for bundle - still to decide whether it is original or fallback */ 55 char *fPath; /* path to bundle - used for distinguishing between resources with the same name */ 56 UResourceDataEntry *fParent; /*next resource in fallback chain*/ 57 UResourceDataEntry *fAlias; 58 UResourceDataEntry *fPool; 59 ResourceData fData; /* data for low level access */ 60 char fNameBuffer[3]; /* A small buffer of free space for fName. The free space is due to struct padding. */ 61 uint32_t fCountExisting; /* how much is this resource used */ 62 UErrorCode fBogus; 63 /* int32_t fHashKey;*/ /* for faster access in the hashtable */ 64 }; 65 66 #define RES_BUFSIZE 64 67 #define RES_PATH_SEPARATOR '/' 68 #define RES_PATH_SEPARATOR_S "/" 69 70 struct UResourceBundle { 71 const char *fKey; /*tag*/ 72 UResourceDataEntry *fData; /*for low-level access*/ 73 char *fVersion; 74 UResourceDataEntry *fTopLevelData; /* for getting the valid locale */ 75 char *fResPath; /* full path to the resource: "zh_TW/CollationElements/Sequence" */ 76 ResourceData fResData; 77 char fResBuf[RES_BUFSIZE]; 78 int32_t fResPathLen; 79 Resource fRes; 80 UBool fHasFallback; 81 UBool fIsTopLevel; 82 uint32_t fMagic1; /* For determining if it's a stack object */ 83 uint32_t fMagic2; /* For determining if it's a stack object */ 84 int32_t fIndex; 85 int32_t fSize; 86 87 /*const UResourceBundle *fParentRes;*/ /* needed to get the actual locale for a child resource */ 88 }; 89 90 U_CAPI void U_EXPORT2 ures_initStackObject(UResourceBundle* resB); 91 92 /* Some getters used by the copy constructor */ 93 U_CFUNC const char* ures_getName(const UResourceBundle* resB); 94 #ifdef URES_DEBUG 95 U_CFUNC const char* ures_getPath(const UResourceBundle* resB); 96 /** 97 * If anything was in the RB cache, dump it to the screen. 98 * @return TRUE if there was anything into the cache 99 */ 100 U_CAPI UBool U_EXPORT2 ures_dumpCacheContents(void); 101 #endif 102 /*U_CFUNC void ures_appendResPath(UResourceBundle *resB, const char* toAdd, int32_t lenToAdd);*/ 103 /*U_CFUNC void ures_setResPath(UResourceBundle *resB, const char* toAdd);*/ 104 /*U_CFUNC void ures_freeResPath(UResourceBundle *resB);*/ 105 106 /* Candidates for export */ 107 U_CFUNC UResourceBundle *ures_copyResb(UResourceBundle *r, const UResourceBundle *original, UErrorCode *status); 108 109 /** 110 * Returns a resource that can be located using the pathToResource argument. One needs optional package, locale 111 * and path inside the locale, for example: "/myData/en/zoneStrings/3". Keys and indexes are supported. Keys 112 * need to reference data in named structures, while indexes can reference both named and anonymous resources. 113 * Features a fill-in parameter. 114 * 115 * Note, this function does NOT have a syntax for specifying items within a tree. May want to consider a 116 * syntax that delineates between package/tree and resource. 117 * 118 * @param pathToResource a path that will lead to the requested resource 119 * @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller. 120 * Alternatively, you can supply a struct to be filled by this function. 121 * @param status fills in the outgoing error code. 122 * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it 123 * @draft ICU 2.2 124 */ 125 U_CAPI UResourceBundle* U_EXPORT2 126 ures_findResource(const char* pathToResource, 127 UResourceBundle *fillIn, UErrorCode *status); 128 129 /** 130 * Returns a sub resource that can be located using the pathToResource argument. One needs a path inside 131 * the supplied resource, for example, if you have "en_US" resource bundle opened, you might ask for 132 * "zoneStrings/3". Keys and indexes are supported. Keys 133 * need to reference data in named structures, while indexes can reference both 134 * named and anonymous resources. 135 * Features a fill-in parameter. 136 * 137 * @param resourceBundle a resource 138 * @param pathToResource a path that will lead to the requested resource 139 * @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller. 140 * Alternatively, you can supply a struct to be filled by this function. 141 * @param status fills in the outgoing error code. 142 * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it 143 * @draft ICU 2.2 144 */ 145 U_CAPI UResourceBundle* U_EXPORT2 146 ures_findSubResource(const UResourceBundle *resB, 147 char* pathToResource, 148 UResourceBundle *fillIn, UErrorCode *status); 149 150 /** 151 * Returns a functionally equivalent locale (considering keywords) for the specified keyword. 152 * @param result fillin for the equivalent locale 153 * @param resultCapacity capacity of the fillin buffer 154 * @param path path to the tree, or NULL for ICU data 155 * @param resName top level resource. Example: "collations" 156 * @param keyword locale keyword. Example: "collation" 157 * @param locid The requested locale 158 * @param isAvailable If non-null, pointer to fillin parameter that indicates whether the 159 * requested locale was available. The locale is defined as 'available' if it physically 160 * exists within the specified tree. 161 * @param omitDefault if TRUE, omit keyword and value if default. 'de_DE\@collation=standard' -> 'de_DE' 162 * @param status error code 163 * @return the actual buffer size needed for the full locale. If it's greater 164 * than resultCapacity, the returned full name will be truncated and an error code will be returned. 165 * @internal ICU 3.0 166 */ 167 U_INTERNAL int32_t U_EXPORT2 168 ures_getFunctionalEquivalent(char *result, int32_t resultCapacity, 169 const char *path, const char *resName, const char *keyword, const char *locid, 170 UBool *isAvailable, UBool omitDefault, UErrorCode *status); 171 172 /** 173 * Given a tree path and keyword, return a string enumeration of all possible values for that keyword. 174 * @param path path to the tree, or NULL for ICU data 175 * @param keyword a particular keyword to consider, must match a top level resource name 176 * within the tree. 177 * @param status error code 178 * @internal ICU 3.0 179 */ 180 U_INTERNAL UEnumeration* U_EXPORT2 181 ures_getKeywordValues(const char *path, const char *keyword, UErrorCode *status); 182 183 184 /** 185 * Get a resource with multi-level fallback. Normally only the top level resources will 186 * fallback to its parent. This performs fallback on subresources. For example, when a table 187 * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs 188 * on the sub-resources because the table is defined in the current resource bundle, but this 189 * function can perform fallback on the sub-resources of the table. 190 * @param resB a resource 191 * @param inKey a key associated with the requested resource 192 * @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller. 193 * Alternatively, you can supply a struct to be filled by this function. 194 * @param status: fills in the outgoing error code 195 * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found 196 * could be a non-failing error 197 * e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT> 198 * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it 199 * @internal ICU 3.0 200 */ 201 U_INTERNAL UResourceBundle* U_EXPORT2 202 ures_getByKeyWithFallback(const UResourceBundle *resB, 203 const char* inKey, 204 UResourceBundle *fillIn, 205 UErrorCode *status); 206 207 208 /** 209 * Get a String with multi-level fallback. Normally only the top level resources will 210 * fallback to its parent. This performs fallback on subresources. For example, when a table 211 * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs 212 * on the sub-resources because the table is defined in the current resource bundle, but this 213 * function can perform fallback on the sub-resources of the table. 214 * @param resB a resource 215 * @param inKey a key associated with the requested resource 216 * @param status: fills in the outgoing error code 217 * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found 218 * could be a non-failing error 219 * e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT> 220 * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it 221 * @internal ICU 3.4 222 * @draft ICU 3.4 223 */ 224 U_INTERNAL const UChar* U_EXPORT2 225 ures_getStringByKeyWithFallback(const UResourceBundle *resB, 226 const char* inKey, 227 int32_t* len, 228 UErrorCode *status); 229 230 /** 231 * Get a version number by key 232 * @param resB bundle containing version number 233 * @param key the key for the version number 234 * @param ver fillin for the version number 235 * @param status error code 236 * @internal ICU 4.2 237 */ 238 U_INTERNAL void U_EXPORT2 239 ures_getVersionByKey(const UResourceBundle *resB, 240 const char *key, 241 UVersionInfo ver, 242 UErrorCode *status); 243 244 245 /** 246 * Internal function. 247 * Return the version number associated with this ResourceBundle as a string. 248 * 249 * @param resourceBundle The resource bundle for which the version is checked. 250 * @return A version number string as specified in the resource bundle or its parent. 251 * The caller does not own this string. 252 * @see ures_getVersion 253 * @internal 254 */ 255 U_INTERNAL const char* U_EXPORT2 256 ures_getVersionNumberInternal(const UResourceBundle *resourceBundle); 257 258 /** 259 * Return the name of the Locale associated with this ResourceBundle. This API allows 260 * you to query for the real locale of the resource. For example, if you requested 261 * "en_US_CALIFORNIA" and only "en_US" bundle exists, "en_US" will be returned. 262 * For subresources, the locale where this resource comes from will be returned. 263 * If fallback has occured, getLocale will reflect this. 264 * 265 * @param resourceBundle resource bundle in question 266 * @param status just for catching illegal arguments 267 * @return A Locale name 268 * @deprecated ICU 2.8 Use ures_getLocaleByType instead. 269 */ 270 U_INTERNAL const char* U_EXPORT2 271 ures_getLocaleInternal(const UResourceBundle* resourceBundle, 272 UErrorCode* status); 273 274 #endif /*URESIMP_H*/ 275