+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
-* Copyright (C) 2000-2004, International Business Machines
+* Copyright (C) 2000-2016, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#define URESIMP_H
#include "unicode/ures.h"
+#include "unicode/utypes.h"
#include "uresdata.h"
#define kRootLocaleName "root"
+#define kPoolBundleName "pool"
/*
The default minor version and the version separator must be exactly one
#define MAGIC2 19641227
#define URES_MAX_ALIAS_LEVEL 256
+#define URES_MAX_BUFFER_SIZE 256
-/*
-enum UResEntryType {
- ENTRY_OK = 0,
- ENTRY_GOTO_ROOT = 1,
- ENTRY_GOTO_DEFAULT = 2,
- ENTRY_INVALID = 3
-};
-
-typedef enum UResEntryType UResEntryType;
-*/
+#define EMPTY_SET 0x2205
struct UResourceDataEntry;
typedef struct UResourceDataEntry UResourceDataEntry;
+/*
+ * Note: If we wanted to make this structure smaller, then we could try
+ * to use one UResourceDataEntry pointer for fAlias and fPool, with a separate
+ * flag to distinguish whether this struct is for a real bundle with a pool,
+ * or for an alias entry for which we won't use the pool after loading.
+ */
struct UResourceDataEntry {
char *fName; /* name of the locale for bundle - still to decide whether it is original or fallback */
char *fPath; /* path to bundle - used for distinguishing between resources with the same name */
- uint32_t fCountExisting; /* how much is this resource used */
- ResourceData fData; /* data for low level access */
UResourceDataEntry *fParent; /*next resource in fallback chain*/
-/* UResEntryType fStatus;*/
+ UResourceDataEntry *fAlias;
+ UResourceDataEntry *fPool;
+ ResourceData fData; /* data for low level access */
+ char fNameBuffer[3]; /* A small buffer of free space for fName. The free space is due to struct padding. */
+ uint32_t fCountExisting; /* how much is this resource used */
UErrorCode fBogus;
- int32_t fHashKey; /* for faster access in the hashtable */
+ /* int32_t fHashKey;*/ /* for faster access in the hashtable */
};
#define RES_BUFSIZE 64
const char *fKey; /*tag*/
UResourceDataEntry *fData; /*for low-level access*/
char *fVersion;
+ UResourceDataEntry *fTopLevelData; /* for getting the valid locale */
char *fResPath; /* full path to the resource: "zh_TW/CollationElements/Sequence" */
+ // TODO(ICU-20769): Try to change the by-value fResData into a pointer,
+ // with the struct in only one place for each bundle.
+ // Also replace class ResourceDataValue.resData with a pResData pointer again.
+ ResourceData fResData;
char fResBuf[RES_BUFSIZE];
int32_t fResPathLen;
+ Resource fRes;
UBool fHasFallback;
UBool fIsTopLevel;
uint32_t fMagic1; /* For determining if it's a stack object */
uint32_t fMagic2; /* For determining if it's a stack object */
int32_t fIndex;
int32_t fSize;
- ResourceData fResData;
- Resource fRes;
-
- UResourceDataEntry *fTopLevelData; /* for getting the valid locale */
- const UResourceBundle *fParentRes; /* needed to get the actual locale for a child resource */
+ /*const UResourceBundle *fParentRes;*/ /* needed to get the actual locale for a child resource */
};
U_CAPI void U_EXPORT2 ures_initStackObject(UResourceBundle* resB);
+#ifdef __cplusplus
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \class StackUResourceBundle
+ * "Smart pointer" like class, closes a UResourceBundle via ures_close().
+ *
+ * This code:
+ *
+ * StackUResourceBundle bundle;
+ * foo(bundle.getAlias());
+ *
+ * Is equivalent to this code:
+ *
+ * UResourceBundle bundle;
+ * ures_initStackObject(&bundle);
+ * foo(&bundle);
+ * ures_close(&bundle);
+ *
+ * @see LocalUResourceBundlePointer
+ * @internal
+ */
+class U_COMMON_API StackUResourceBundle {
+public:
+ // No heap allocation. Use only on the stack.
+ static void* U_EXPORT2 operator new(size_t) U_NOEXCEPT = delete;
+ static void* U_EXPORT2 operator new[](size_t) U_NOEXCEPT = delete;
+#if U_HAVE_PLACEMENT_NEW
+ static void* U_EXPORT2 operator new(size_t, void*) U_NOEXCEPT = delete;
+#endif
+
+ StackUResourceBundle();
+ ~StackUResourceBundle();
+
+ UResourceBundle* getAlias() { return &bundle; }
+
+ UResourceBundle& ref() { return bundle; }
+ const UResourceBundle& ref() const { return bundle; }
+
+ StackUResourceBundle(const StackUResourceBundle&) = delete;
+ StackUResourceBundle& operator=(const StackUResourceBundle&) = delete;
+
+ StackUResourceBundle(StackUResourceBundle&&) = delete;
+ StackUResourceBundle& operator=(StackUResourceBundle&&) = delete;
+
+private:
+ UResourceBundle bundle;
+};
+
+U_NAMESPACE_END
+
+#endif /* __cplusplus */
+
+/**
+ * Opens a resource bundle for the locale;
+ * if there is not even a base language bundle, then loads the root bundle;
+ * never falls back to the default locale.
+ *
+ * This is used for algorithms that have good pan-Unicode default behavior,
+ * such as case mappings, collation, and segmentation (BreakIterator).
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_openNoDefault(const char* path, const char* localeID, UErrorCode* status);
+
/* Some getters used by the copy constructor */
U_CFUNC const char* ures_getName(const UResourceBundle* resB);
+#ifdef URES_DEBUG
U_CFUNC const char* ures_getPath(const UResourceBundle* resB);
-U_CFUNC void ures_appendResPath(UResourceBundle *resB, const char* toAdd, int32_t lenToAdd);
+/**
+ * If anything was in the RB cache, dump it to the screen.
+ * @return TRUE if there was anything into the cache
+ */
+U_CAPI UBool U_EXPORT2 ures_dumpCacheContents(void);
+#endif
+/*U_CFUNC void ures_appendResPath(UResourceBundle *resB, const char* toAdd, int32_t lenToAdd);*/
/*U_CFUNC void ures_setResPath(UResourceBundle *resB, const char* toAdd);*/
-U_CFUNC void ures_freeResPath(UResourceBundle *resB);
+/*U_CFUNC void ures_freeResPath(UResourceBundle *resB);*/
/* Candidates for export */
U_CFUNC UResourceBundle *ures_copyResb(UResourceBundle *r, const UResourceBundle *original, UErrorCode *status);
* Alternatively, you can supply a struct to be filled by this function.
* @param status fills in the outgoing error code.
* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
- * @draft ICU 2.2
*/
U_CAPI UResourceBundle* U_EXPORT2
ures_findResource(const char* pathToResource,
* Alternatively, you can supply a struct to be filled by this function.
* @param status fills in the outgoing error code.
* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
- * @draft ICU 2.2
*/
U_CAPI UResourceBundle* U_EXPORT2
ures_findSubResource(const UResourceBundle *resB,
* @param status error code
* @return the actual buffer size needed for the full locale. If it's greater
* than resultCapacity, the returned full name will be truncated and an error code will be returned.
- * @internal ICU 3.0
*/
-U_INTERNAL int32_t U_EXPORT2
+U_CAPI int32_t U_EXPORT2
ures_getFunctionalEquivalent(char *result, int32_t resultCapacity,
const char *path, const char *resName, const char *keyword, const char *locid,
UBool *isAvailable, UBool omitDefault, UErrorCode *status);
* @param keyword a particular keyword to consider, must match a top level resource name
* within the tree.
* @param status error code
- * @internal ICU 3.0
*/
-U_INTERNAL UEnumeration* U_EXPORT2
+U_CAPI UEnumeration* U_EXPORT2
ures_getKeywordValues(const char *path, const char *keyword, UErrorCode *status);
+
+/**
+ * Get a resource with multi-level fallback. Normally only the top level resources will
+ * fallback to its parent. This performs fallback on subresources. For example, when a table
+ * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
+ * on the sub-resources because the table is defined in the current resource bundle, but this
+ * function can perform fallback on the sub-resources of the table.
+ * @param resB a resource
+ * @param inKey a key associated with the requested resource
+ * @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
+ * Alternatively, you can supply a struct to be filled by this function.
+ * @param status: fills in the outgoing error code
+ * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
+ * could be a non-failing error
+ * e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
+ * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_getByKeyWithFallback(const UResourceBundle *resB,
+ const char* inKey,
+ UResourceBundle *fillIn,
+ UErrorCode *status);
+
+
+/**
+ * Get a String with multi-level fallback. Normally only the top level resources will
+ * fallback to its parent. This performs fallback on subresources. For example, when a table
+ * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
+ * on the sub-resources because the table is defined in the current resource bundle, but this
+ * function can perform fallback on the sub-resources of the table.
+ * @param resB a resource
+ * @param inKey a key associated with the requested resource
+ * @param status: fills in the outgoing error code
+ * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
+ * could be a non-failing error
+ * e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
+ * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
+ */
+U_CAPI const UChar* U_EXPORT2
+ures_getStringByKeyWithFallback(const UResourceBundle *resB,
+ const char* inKey,
+ int32_t* len,
+ UErrorCode *status);
+
+#ifdef __cplusplus
+
+U_CAPI void U_EXPORT2
+ures_getValueWithFallback(const UResourceBundle *bundle, const char *path,
+ UResourceBundle *tempFillIn,
+ icu::ResourceDataValue &value, UErrorCode &errorCode);
+
+U_CAPI void U_EXPORT2
+ures_getAllItemsWithFallback(const UResourceBundle *bundle, const char *path,
+ icu::ResourceSink &sink, UErrorCode &errorCode);
+
+#endif /* __cplusplus */
+
+/**
+ * Get a version number by key
+ * @param resB bundle containing version number
+ * @param key the key for the version number
+ * @param ver fillin for the version number
+ * @param status error code
+ */
+U_CAPI void U_EXPORT2
+ures_getVersionByKey(const UResourceBundle *resB,
+ const char *key,
+ UVersionInfo ver,
+ UErrorCode *status);
+
+
+/**
+ * Internal function.
+ * Return the version number associated with this ResourceBundle as a string.
+ *
+ * @param resourceBundle The resource bundle for which the version is checked.
+ * @return A version number string as specified in the resource bundle or its parent.
+ * The caller does not own this string.
+ * @see ures_getVersion
+ */
+U_CAPI const char* U_EXPORT2
+ures_getVersionNumberInternal(const UResourceBundle *resourceBundle);
+
+/**
+ * Return the name of the Locale associated with this ResourceBundle. This API allows
+ * you to query for the real locale of the resource. For example, if you requested
+ * "en_US_CALIFORNIA" and only "en_US" bundle exists, "en_US" will be returned.
+ * For subresources, the locale where this resource comes from will be returned.
+ * If fallback has occured, getLocale will reflect this.
+ *
+ * This internal version avoids deprecated-warnings in ICU code.
+ *
+ * @param resourceBundle resource bundle in question
+ * @param status just for catching illegal arguments
+ * @return A Locale name
+ */
+U_CAPI const char* U_EXPORT2
+ures_getLocaleInternal(const UResourceBundle* resourceBundle,
+ UErrorCode* status);
+
+/**
+ * Same as ures_openDirect() but uses the fill-in parameter instead of allocating a new bundle.
+ *
+ * @param r The existing UResourceBundle to fill in. If NULL then status will be
+ * set to U_ILLEGAL_ARGUMENT_ERROR.
+ * @param packageName The packageName and locale together point to an ICU udata object,
+ * as defined by <code> udata_open( packageName, "res", locale, err) </code>
+ * or equivalent. Typically, packageName will refer to a (.dat) file, or to
+ * a package registered with udata_setAppData(). Using a full file or directory
+ * pathname for packageName is deprecated. If NULL, ICU data will be used.
+ * @param locale specifies the locale for which we want to open the resource
+ * if NULL, the default locale will be used. If strlen(locale) == 0
+ * root locale will be used.
+ * @param status The error code.
+ * @see ures_openDirect
+ * @internal
+ */
+U_CAPI void U_EXPORT2
+ures_openDirectFillIn(UResourceBundle *r,
+ const char *packageName,
+ const char *locale,
+ UErrorCode *status);
+
+/**
+ * Same as ures_open(), except that if no resource bundle for the specified package name and locale exists,
+ * and the incoming locale specifies a country, this will fall back to the resource bundle for the specified country
+ * and the specified country's default language. For example, if caller asks for fr_JP and no bundle for fr_JP exists,
+ * ures_open() will fall back to fr and this function will fall back to ja_JP.
+ * @param packageName The packageName and locale together point to an ICU udata object,
+ * as defined by <code> udata_open( packageName, "res", locale, err) </code>
+ * or equivalent. Typically, packageName will refer to a (.dat) file, or to
+ * a package registered with udata_setAppData(). Using a full file or directory
+ * pathname for packageName is deprecated. If NULL, ICU data will be used.
+ * @param locale specifies the locale for which we want to open the resource
+ * if NULL, the default locale will be used. If strlen(locale) == 0
+ * root locale will be used.
+ * @param didFallBackByCountry If not NULL, filled in with a Boolean value that indicates whether we actually
+ * did fall back by country. If this value is FALSE, the result of calling this function
+ * is the same as the caller would have gotten from ures_open().
+ * @param status fills in the outgoing error code.
+ * @return a newly allocated resource bundle.
+ * @see ures_open
+ * @internal
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_openWithCountryFallback(const char* packageName,
+ const char* locale,
+ UBool* didFallBackByCountry,
+ UErrorCode* status);
+
+/**
+ * If localeID has a parent in parentLocale data, return that.
+ * Otherwise return empty string.
+ *
+ * A more general version of this might then itself call
+ * uloc_getParent, but that is not what we want for ualoc usage.
+ *
+ * Some version of this (perhaps more general) should eventually move
+ * (with new name) to ulocimp.h, or perhaps uloc.h.
+ *
+ * @param localeID Input locale ID string.
+ * @param parent Output string buffer for the parent locale ID.
+ * @param parentCapacity Size of the output buffer.
+ * @param err A UErrorCode value.
+ * @return The length of the parent locale ID.
+ * @see uloc_getParent
+ * @internal Apple <rdar://problem/63880069>
+ */
+U_CAPI int32_t U_EXPORT2
+ures_getLocParent(const char* localeID,
+ char* parent,
+ int32_t parentCapacity,
+ UErrorCode* err);
+
#endif /*URESIMP_H*/
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