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269 lines
12 KiB
C
269 lines
12 KiB
C
/*
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**********************************************************************
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* Copyright (C) 2000-2011, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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*/
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#ifndef URESIMP_H
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#define URESIMP_H
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#include "unicode/ures.h"
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#include "uresdata.h"
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#define kRootLocaleName "root"
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#define kPoolBundleName "pool"
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/*
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The default minor version and the version separator must be exactly one
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character long.
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*/
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#define kDefaultMinorVersion "0"
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#define kVersionSeparator "."
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#define kVersionTag "Version"
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#define MAGIC1 19700503
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#define MAGIC2 19641227
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#define URES_MAX_ALIAS_LEVEL 256
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#define URES_MAX_BUFFER_SIZE 256
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#define EMPTY_SET 0x2205
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/*
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enum UResEntryType {
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ENTRY_OK = 0,
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ENTRY_GOTO_ROOT = 1,
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ENTRY_GOTO_DEFAULT = 2,
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ENTRY_INVALID = 3
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};
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typedef enum UResEntryType UResEntryType;
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*/
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struct UResourceDataEntry;
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typedef struct UResourceDataEntry UResourceDataEntry;
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/*
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* Note: If we wanted to make this structure smaller, then we could try
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* to use one UResourceDataEntry pointer for fAlias and fPool, with a separate
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* flag to distinguish whether this struct is for a real bundle with a pool,
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* or for an alias entry for which we won't use the pool after loading.
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*/
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struct UResourceDataEntry {
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char *fName; /* name of the locale for bundle - still to decide whether it is original or fallback */
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char *fPath; /* path to bundle - used for distinguishing between resources with the same name */
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UResourceDataEntry *fParent; /*next resource in fallback chain*/
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UResourceDataEntry *fAlias;
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UResourceDataEntry *fPool;
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ResourceData fData; /* data for low level access */
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char fNameBuffer[3]; /* A small buffer of free space for fName. The free space is due to struct padding. */
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uint32_t fCountExisting; /* how much is this resource used */
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UErrorCode fBogus;
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/* int32_t fHashKey;*/ /* for faster access in the hashtable */
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};
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#define RES_BUFSIZE 64
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#define RES_PATH_SEPARATOR '/'
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#define RES_PATH_SEPARATOR_S "/"
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struct UResourceBundle {
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const char *fKey; /*tag*/
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UResourceDataEntry *fData; /*for low-level access*/
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char *fVersion;
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UResourceDataEntry *fTopLevelData; /* for getting the valid locale */
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char *fResPath; /* full path to the resource: "zh_TW/CollationElements/Sequence" */
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ResourceData fResData;
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char fResBuf[RES_BUFSIZE];
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int32_t fResPathLen;
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Resource fRes;
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UBool fHasFallback;
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UBool fIsTopLevel;
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uint32_t fMagic1; /* For determining if it's a stack object */
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uint32_t fMagic2; /* For determining if it's a stack object */
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int32_t fIndex;
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int32_t fSize;
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/*const UResourceBundle *fParentRes;*/ /* needed to get the actual locale for a child resource */
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};
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U_CAPI void U_EXPORT2 ures_initStackObject(UResourceBundle* resB);
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/* Some getters used by the copy constructor */
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U_CFUNC const char* ures_getName(const UResourceBundle* resB);
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#ifdef URES_DEBUG
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U_CFUNC const char* ures_getPath(const UResourceBundle* resB);
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/**
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* If anything was in the RB cache, dump it to the screen.
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* @return TRUE if there was anything into the cache
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*/
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U_CAPI UBool U_EXPORT2 ures_dumpCacheContents(void);
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#endif
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/*U_CFUNC void ures_appendResPath(UResourceBundle *resB, const char* toAdd, int32_t lenToAdd);*/
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/*U_CFUNC void ures_setResPath(UResourceBundle *resB, const char* toAdd);*/
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/*U_CFUNC void ures_freeResPath(UResourceBundle *resB);*/
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/* Candidates for export */
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U_CFUNC UResourceBundle *ures_copyResb(UResourceBundle *r, const UResourceBundle *original, UErrorCode *status);
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/**
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* Returns a resource that can be located using the pathToResource argument. One needs optional package, locale
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* and path inside the locale, for example: "/myData/en/zoneStrings/3". Keys and indexes are supported. Keys
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* need to reference data in named structures, while indexes can reference both named and anonymous resources.
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* Features a fill-in parameter.
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*
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* Note, this function does NOT have a syntax for specifying items within a tree. May want to consider a
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* syntax that delineates between package/tree and resource.
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*
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* @param pathToResource a path that will lead to the requested resource
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* @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
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* Alternatively, you can supply a struct to be filled by this function.
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* @param status fills in the outgoing error code.
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* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
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*/
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U_CAPI UResourceBundle* U_EXPORT2
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ures_findResource(const char* pathToResource,
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UResourceBundle *fillIn, UErrorCode *status);
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/**
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* Returns a sub resource that can be located using the pathToResource argument. One needs a path inside
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* the supplied resource, for example, if you have "en_US" resource bundle opened, you might ask for
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* "zoneStrings/3". Keys and indexes are supported. Keys
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* need to reference data in named structures, while indexes can reference both
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* named and anonymous resources.
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* Features a fill-in parameter.
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*
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* @param resourceBundle a resource
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* @param pathToResource a path that will lead to the requested resource
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* @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
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* Alternatively, you can supply a struct to be filled by this function.
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* @param status fills in the outgoing error code.
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* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
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*/
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U_CAPI UResourceBundle* U_EXPORT2
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ures_findSubResource(const UResourceBundle *resB,
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char* pathToResource,
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UResourceBundle *fillIn, UErrorCode *status);
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/**
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* Returns a functionally equivalent locale (considering keywords) for the specified keyword.
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* @param result fillin for the equivalent locale
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* @param resultCapacity capacity of the fillin buffer
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* @param path path to the tree, or NULL for ICU data
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* @param resName top level resource. Example: "collations"
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* @param keyword locale keyword. Example: "collation"
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* @param locid The requested locale
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* @param isAvailable If non-null, pointer to fillin parameter that indicates whether the
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* requested locale was available. The locale is defined as 'available' if it physically
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* exists within the specified tree.
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* @param omitDefault if TRUE, omit keyword and value if default. 'de_DE\@collation=standard' -> 'de_DE'
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* @param status error code
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* @return the actual buffer size needed for the full locale. If it's greater
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* than resultCapacity, the returned full name will be truncated and an error code will be returned.
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*/
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U_CAPI int32_t U_EXPORT2
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ures_getFunctionalEquivalent(char *result, int32_t resultCapacity,
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const char *path, const char *resName, const char *keyword, const char *locid,
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UBool *isAvailable, UBool omitDefault, UErrorCode *status);
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/**
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* Given a tree path and keyword, return a string enumeration of all possible values for that keyword.
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* @param path path to the tree, or NULL for ICU data
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* @param keyword a particular keyword to consider, must match a top level resource name
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* within the tree.
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* @param status error code
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*/
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U_CAPI UEnumeration* U_EXPORT2
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ures_getKeywordValues(const char *path, const char *keyword, UErrorCode *status);
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/**
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* Get a resource with multi-level fallback. Normally only the top level resources will
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* fallback to its parent. This performs fallback on subresources. For example, when a table
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* is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
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* on the sub-resources because the table is defined in the current resource bundle, but this
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* function can perform fallback on the sub-resources of the table.
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* @param resB a resource
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* @param inKey a key associated with the requested resource
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* @param fillIn if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
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* Alternatively, you can supply a struct to be filled by this function.
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* @param status: fills in the outgoing error code
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* could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
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* could be a non-failing error
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* e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
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* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
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*/
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U_CAPI UResourceBundle* U_EXPORT2
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ures_getByKeyWithFallback(const UResourceBundle *resB,
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const char* inKey,
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UResourceBundle *fillIn,
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UErrorCode *status);
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/**
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* Get a String with multi-level fallback. Normally only the top level resources will
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* fallback to its parent. This performs fallback on subresources. For example, when a table
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* is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
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* on the sub-resources because the table is defined in the current resource bundle, but this
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* function can perform fallback on the sub-resources of the table.
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* @param resB a resource
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* @param inKey a key associated with the requested resource
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* @param status: fills in the outgoing error code
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* could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
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* could be a non-failing error
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* e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
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* @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
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*/
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U_CAPI const UChar* U_EXPORT2
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ures_getStringByKeyWithFallback(const UResourceBundle *resB,
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const char* inKey,
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int32_t* len,
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UErrorCode *status);
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/**
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* Get a version number by key
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* @param resB bundle containing version number
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* @param key the key for the version number
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* @param ver fillin for the version number
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* @param status error code
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*/
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U_CAPI void U_EXPORT2
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ures_getVersionByKey(const UResourceBundle *resB,
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const char *key,
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UVersionInfo ver,
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UErrorCode *status);
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/**
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* Internal function.
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* Return the version number associated with this ResourceBundle as a string.
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*
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* @param resourceBundle The resource bundle for which the version is checked.
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* @return A version number string as specified in the resource bundle or its parent.
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* The caller does not own this string.
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* @see ures_getVersion
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*/
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U_CAPI const char* U_EXPORT2
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ures_getVersionNumberInternal(const UResourceBundle *resourceBundle);
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/**
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* Return the name of the Locale associated with this ResourceBundle. This API allows
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* you to query for the real locale of the resource. For example, if you requested
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* "en_US_CALIFORNIA" and only "en_US" bundle exists, "en_US" will be returned.
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* For subresources, the locale where this resource comes from will be returned.
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* If fallback has occured, getLocale will reflect this.
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*
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* This internal version avoids deprecated-warnings in ICU code.
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*
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* @param resourceBundle resource bundle in question
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* @param status just for catching illegal arguments
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* @return A Locale name
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*/
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U_CAPI const char* U_EXPORT2
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ures_getLocaleInternal(const UResourceBundle* resourceBundle,
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UErrorCode* status);
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#endif /*URESIMP_H*/
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