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// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ********************************************************************** * Copyright (C) 1997-2016, International Business Machines * Corporation and others. All Rights Reserved. ********************************************************************** * * File URES.H (formerly CRESBUND.H) * * Modification History: * * Date Name Description * 04/01/97 aliu Creation. * 02/22/99 damiba overhaul. * 04/04/99 helena Fixed internal header inclusion. * 04/15/99 Madhu Updated Javadoc * 06/14/99 stephen Removed functions taking a filename suffix. * 07/20/99 stephen Language-independent typedef to void* * 11/09/99 weiv Added ures_getLocale() * 06/24/02 weiv Added support for resource sharing ****************************************************************************** */ #ifndef URES_H #define URES_H #include "unicode/utypes.h" #include "unicode/uloc.h" #if U_SHOW_CPLUSPLUS_API #include "unicode/localpointer.h" #endif // U_SHOW_CPLUSPLUS_API /** * \file * \brief C API: Resource Bundle * * <h2>C API: Resource Bundle</h2> * * C API representing a collection of resource information pertaining to a given * locale. A resource bundle provides a way of accessing locale- specific information in * a data file. You create a resource bundle that manages the resources for a given * locale and then ask it for individual resources. * <P> * Resource bundles in ICU4C are currently defined using text files which conform to the following * <a href="https://github.com/unicode-org/icu-docs/blob/main/design/bnf_rb.txt">BNF definition</a>. * More on resource bundle concepts and syntax can be found in the * <a href="https://unicode-org.github.io/icu/userguide/locale/resources">Users Guide</a>. * <P> */ /** * UResourceBundle is an opaque type for handles for resource bundles in C APIs. * @stable ICU 2.0 */ struct UResourceBundle; /** * @stable ICU 2.0 */ typedef struct UResourceBundle UResourceBundle; /** * Numeric constants for types of resource items. * @see ures_getType * @stable ICU 2.0 */ typedef enum { /** Resource type constant for "no resource". @stable ICU 2.6 */ URES_NONE=-1, /** Resource type constant for 16-bit Unicode strings. @stable ICU 2.6 */ URES_STRING=0, /** Resource type constant for binary data. @stable ICU 2.6 */ URES_BINARY=1, /** Resource type constant for tables of key-value pairs. @stable ICU 2.6 */ URES_TABLE=2, /** * Resource type constant for aliases; * internally stores a string which identifies the actual resource * storing the data (can be in a different resource bundle). * Resolved internally before delivering the actual resource through the API. * @stable ICU 2.6 */ URES_ALIAS=3, /** * Resource type constant for a single 28-bit integer, interpreted as * signed or unsigned by the ures_getInt() or ures_getUInt() function. * @see ures_getInt * @see ures_getUInt * @stable ICU 2.6 */ URES_INT=7, /** Resource type constant for arrays of resources. @stable ICU 2.6 */ URES_ARRAY=8, /** * Resource type constant for vectors of 32-bit integers. * @see ures_getIntVector * @stable ICU 2.6 */ URES_INT_VECTOR = 14, #ifndef U_HIDE_DEPRECATED_API /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_NONE=URES_NONE, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_STRING=URES_STRING, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_BINARY=URES_BINARY, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_TABLE=URES_TABLE, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_ALIAS=URES_ALIAS, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_INT=URES_INT, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_ARRAY=URES_ARRAY, /** @deprecated ICU 2.6 Use the URES_ constant instead. */ RES_INT_VECTOR=URES_INT_VECTOR, /** @deprecated ICU 2.6 Not used. */ RES_RESERVED=15, /** * One more than the highest normal UResType value. * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420. */ URES_LIMIT = 16 #endif // U_HIDE_DEPRECATED_API } UResType; /* * Functions to create and destroy resource bundles. */ /** * Opens a UResourceBundle, from which users can extract strings by using * their corresponding keys. * Note that the caller is responsible of calling <TT>ures_close</TT> on each successfully * opened resource bundle. * @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 fills in the outgoing error code. * The UErrorCode err parameter is used to return status information to the user. To * check whether the construction succeeded or not, you should check the value of * U_SUCCESS(err). If you wish more detailed information, you can check for * informational status results which still indicate success. U_USING_FALLBACK_WARNING * indicates that a fall back locale was used. For example, 'de_CH' was requested, * but nothing was found there, so 'de' was used. U_USING_DEFAULT_WARNING indicates that * the default locale data or root locale data was used; neither the requested locale * nor any of its fall back locales could be found. Please see the users guide for more * information on this topic. * @return a newly allocated resource bundle. * @see ures_close * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_open(const char* packageName, const char* locale, UErrorCode* status); /** This function does not care what kind of localeID is passed in. It simply opens a bundle with * that name. Fallback mechanism is disabled for the new bundle. If the requested bundle contains * an %%ALIAS directive, the results are undefined. * @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 fills in the outgoing error code. Either U_ZERO_ERROR or U_MISSING_RESOURCE_ERROR * @return a newly allocated resource bundle or NULL if it doesn't exist. * @see ures_close * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_openDirect(const char* packageName, const char* locale, UErrorCode* status); /** * Same as ures_open() but takes a const UChar *path. * This path will be converted to char * using the default converter, * then ures_open() is called. * * @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 fills in the outgoing error code. * @return a newly allocated resource bundle. * @see ures_open * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_openU(const UChar* packageName, const char* locale, UErrorCode* status); #ifndef U_HIDE_DEPRECATED_API /** * Returns the number of strings/arrays in resource bundles. * Better to use ures_getSize, as this function will be deprecated. * *@param resourceBundle resource bundle containing the desired strings *@param resourceKey key tagging the resource *@param err 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_FALLBACK_WARNING </TT> *@return: for <STRONG>Arrays</STRONG>: returns the number of resources in the array * <STRONG>Tables</STRONG>: returns the number of resources in the table * <STRONG>single string</STRONG>: returns 1 *@see ures_getSize * @deprecated ICU 2.8 User ures_getSize instead */ U_DEPRECATED int32_t U_EXPORT2 ures_countArrayItems(const UResourceBundle* resourceBundle, const char* resourceKey, UErrorCode* err); #endif /* U_HIDE_DEPRECATED_API */ /** * Close a resource bundle, all pointers returned from the various ures_getXXX calls * on this particular bundle should be considered invalid henceforth. * * @param resourceBundle a pointer to a resourceBundle struct. Can be NULL. * @see ures_open * @stable ICU 2.0 */ U_CAPI void U_EXPORT2 ures_close(UResourceBundle* resourceBundle); #if U_SHOW_CPLUSPLUS_API U_NAMESPACE_BEGIN /** * \class LocalUResourceBundlePointer * "Smart pointer" class, closes a UResourceBundle via ures_close(). * For most methods see the LocalPointerBase base class. * * @see LocalPointerBase * @see LocalPointer * @stable ICU 4.4 */ U_DEFINE_LOCAL_OPEN_POINTER(LocalUResourceBundlePointer, UResourceBundle, ures_close); U_NAMESPACE_END #endif #ifndef U_HIDE_DEPRECATED_API /** * Return the version number associated with this ResourceBundle as a string. Please * use ures_getVersion as this function is going to be deprecated. * * @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 * @deprecated ICU 2.8 Use ures_getVersion instead. */ U_DEPRECATED const char* U_EXPORT2 ures_getVersionNumber(const UResourceBundle* resourceBundle); #endif /* U_HIDE_DEPRECATED_API */ /** * Return the version number associated with this ResourceBundle as an * UVersionInfo array. * * @param resB The resource bundle for which the version is checked. * @param versionInfo A UVersionInfo array that is filled with the version number * as specified in the resource bundle or its parent. * @stable ICU 2.0 */ U_CAPI void U_EXPORT2 ures_getVersion(const UResourceBundle* resB, UVersionInfo versionInfo); #ifndef U_HIDE_DEPRECATED_API /** * 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 occurred, getLocale will reflect this. * * @param resourceBundle resource bundle in question * @param status just for catching illegal arguments * @return A Locale name * @deprecated ICU 2.8 Use ures_getLocaleByType instead. */ U_DEPRECATED const char* U_EXPORT2 ures_getLocale(const UResourceBundle* resourceBundle, UErrorCode* status); #endif /* U_HIDE_DEPRECATED_API */ /** * Return the name of the Locale associated with this ResourceBundle. * You can choose between requested, valid and real locale. * * @param resourceBundle resource bundle in question * @param type You can choose between requested, valid and actual * locale. For description see the definition of * ULocDataLocaleType in uloc.h * @param status just for catching illegal arguments * @return A Locale name * @stable ICU 2.8 */ U_CAPI const char* U_EXPORT2 ures_getLocaleByType(const UResourceBundle* resourceBundle, ULocDataLocaleType type, UErrorCode* status); #ifndef U_HIDE_INTERNAL_API /** * Same as ures_open() but uses the fill-in parameter instead of allocating a new bundle. * * TODO need to revisit usefulness of this function * and usage model for fillIn parameters without knowing sizeof(UResourceBundle) * @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 localeID specifies the locale for which we want to open the resource * @param status The error code. * @internal */ U_CAPI void U_EXPORT2 ures_openFillIn(UResourceBundle *r, const char* packageName, const char* localeID, UErrorCode* status); #endif /* U_HIDE_INTERNAL_API */ /** * Returns a string from a string resource type * * @param resourceBundle a string resource * @param len fills in the length of resulting string * @param status fills in the outgoing error code * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found * Always check the value of status. Don't count on returning NULL. * 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 zero-terminated UChar array which lives in a memory mapped/DLL file. * @see ures_getBinary * @see ures_getIntVector * @see ures_getInt * @see ures_getUInt * @stable ICU 2.0 */ U_CAPI const UChar* U_EXPORT2 ures_getString(const UResourceBundle* resourceBundle, int32_t* len, UErrorCode* status); /** * Returns a UTF-8 string from a string resource. * The UTF-8 string may be returnable directly as a pointer, or * it may need to be copied, or transformed from UTF-16 using u_strToUTF8() * or equivalent. * * If forceCopy==true, then the string is always written to the dest buffer * and dest is returned. * * If forceCopy==false, then the string is returned as a pointer if possible, * without needing a dest buffer (it can be NULL). If the string needs to be * copied or transformed, then it may be placed into dest at an arbitrary offset. * * If the string is to be written to dest, then U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING are set if appropriate, as usual. * * If the string is transformed from UTF-16, then a conversion error may occur * if an unpaired surrogate is encountered. If the function is successful, then * the output UTF-8 string is always well-formed. * * @param resB Resource bundle. * @param dest Destination buffer. Can be NULL only if capacity=*length==0. * @param length Input: Capacity of destination buffer. * Output: Actual length of the UTF-8 string, not counting the * terminating NUL, even in case of U_BUFFER_OVERFLOW_ERROR. * Can be NULL, meaning capacity=0 and the string length is not * returned to the caller. * @param forceCopy If true, then the output string will always be written to * dest, with U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING set if appropriate. * If false, then the dest buffer may or may not contain a * copy of the string. dest may or may not be modified. * If a copy needs to be written, then the UErrorCode parameter * indicates overflow etc. as usual. * @param status Pointer to a standard ICU error code. Its input value must * pass the U_SUCCESS() test, or else the function returns * immediately. Check for U_FAILURE() on output or use with * function chaining. (See User Guide for details.) * @return The pointer to the UTF-8 string. It may be dest, or at some offset * from dest (only if !forceCopy), or in unrelated memory. * Always NUL-terminated unless the string was written to dest and * length==capacity (in which case U_STRING_NOT_TERMINATED_WARNING is set). * * @see ures_getString * @see u_strToUTF8 * @stable ICU 3.6 */ U_CAPI const char * U_EXPORT2 ures_getUTF8String(const UResourceBundle *resB, char *dest, int32_t *length, UBool forceCopy, UErrorCode *status); /** * Returns a binary data from a binary resource. * * @param resourceBundle a string resource * @param len fills in the length of resulting byte chunk * @param status fills in the outgoing error code * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found * Always check the value of status. Don't count on returning NULL. * 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 chunk of unsigned bytes which live in a memory mapped/DLL file. * @see ures_getString * @see ures_getIntVector * @see ures_getInt * @see ures_getUInt * @stable ICU 2.0 */ U_CAPI const uint8_t* U_EXPORT2 ures_getBinary(const UResourceBundle* resourceBundle, int32_t* len, UErrorCode* status); /** * Returns a 32 bit integer array from a resource. * * @param resourceBundle an int vector resource * @param len fills in the length of resulting byte chunk * @param status fills in the outgoing error code * could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found * Always check the value of status. Don't count on returning NULL. * 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 chunk of integers which live in a memory mapped/DLL file. * @see ures_getBinary * @see ures_getString * @see ures_getInt * @see ures_getUInt * @stable ICU 2.0 */ U_CAPI const int32_t* U_EXPORT2 ures_getIntVector(const UResourceBundle* resourceBundle, int32_t* len, UErrorCode* status); /** * Returns an unsigned integer from a resource. * This integer is originally 28 bits. * * @param resourceBundle a string 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 an integer value * @see ures_getInt * @see ures_getIntVector * @see ures_getBinary * @see ures_getString * @stable ICU 2.0 */ U_CAPI uint32_t U_EXPORT2 ures_getUInt(const UResourceBundle* resourceBundle, UErrorCode *status); /** * Returns a signed integer from a resource. * This integer is originally 28 bit and the sign gets propagated. * * @param resourceBundle a string 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 an integer value * @see ures_getUInt * @see ures_getIntVector * @see ures_getBinary * @see ures_getString * @stable ICU 2.0 */ U_CAPI int32_t U_EXPORT2 ures_getInt(const UResourceBundle* resourceBundle, UErrorCode *status); /** * Returns the size of a resource. Size for scalar types is always 1, * and for vector/table types is the number of child resources. * @warning Integer array is treated as a scalar type. There are no * APIs to access individual members of an integer array. It * is always returned as a whole. * @param resourceBundle a resource * @return number of resources in a given resource. * @stable ICU 2.0 */ U_CAPI int32_t U_EXPORT2 ures_getSize(const UResourceBundle *resourceBundle); /** * Returns the type of a resource. Available types are defined in enum UResType * * @param resourceBundle a resource * @return type of the given resource. * @see UResType * @stable ICU 2.0 */ U_CAPI UResType U_EXPORT2 ures_getType(const UResourceBundle *resourceBundle); /** * Returns the key associated with a given resource. Not all the resources have a key - only * those that are members of a table. * * @param resourceBundle a resource * @return a key associated to this resource, or NULL if it doesn't have a key * @stable ICU 2.0 */ U_CAPI const char * U_EXPORT2 ures_getKey(const UResourceBundle *resourceBundle); /* ITERATION API This API provides means for iterating through a resource */ /** * Resets the internal context of a resource so that iteration starts from the first element. * * @param resourceBundle a resource * @stable ICU 2.0 */ U_CAPI void U_EXPORT2 ures_resetIterator(UResourceBundle *resourceBundle); /** * Checks whether the given resource has another element to iterate over. * * @param resourceBundle a resource * @return true if there are more elements, false if there is no more elements * @stable ICU 2.0 */ U_CAPI UBool U_EXPORT2 ures_hasNext(const UResourceBundle *resourceBundle); /** * Returns the next resource in a given resource or NULL if there are no more resources * to iterate over. Features a fill-in parameter. * * @param resourceBundle a resource * @param fillIn if NULL a new UResourceBundle struct is allocated and must be closed by the caller. * Alternatively, you can supply a struct to be filled by this function. * @param status fills in the outgoing error code. You may still get a non NULL result even if an * error occurred. Check status instead. * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must close it * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_getNextResource(UResourceBundle *resourceBundle, UResourceBundle *fillIn, UErrorCode *status); /** * Returns the next string in a given resource or NULL if there are no more resources * to iterate over. * * @param resourceBundle a resource * @param len fill in length of the string * @param key fill in for key associated with this string. NULL if no key * @param status fills in the outgoing error code. If an error occurred, we may return NULL, but don't * count on it. Check status instead! * @return a pointer to a zero-terminated UChar array which lives in a memory mapped/DLL file. * @stable ICU 2.0 */ U_CAPI const UChar* U_EXPORT2 ures_getNextString(UResourceBundle *resourceBundle, int32_t* len, const char ** key, UErrorCode *status); /** * Returns the resource in a given resource at the specified index. Features a fill-in parameter. * * @param resourceBundle the resource bundle from which to get a sub-resource * @param indexR an index to the wanted resource. * @param fillIn if NULL a new UResourceBundle struct is allocated and must be closed by the caller. * Alternatively, you can supply a struct to be filled by this function. * @param status fills in the outgoing error code. Don't count on NULL being returned if an error has * occurred. Check status instead. * @return a pointer to a UResourceBundle struct. If fill in param was NULL, caller must close it * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_getByIndex(const UResourceBundle *resourceBundle, int32_t indexR, UResourceBundle *fillIn, UErrorCode *status); /** * Returns the string in a given resource at the specified index. * * @param resourceBundle a resource * @param indexS an index to the wanted string. * @param len fill in length of the string * @param status fills in the outgoing error code. If an error occurred, we may return NULL, but don't * count on it. Check status instead! * @return a pointer to a zero-terminated UChar array which lives in a memory mapped/DLL file. * @stable ICU 2.0 */ U_CAPI const UChar* U_EXPORT2 ures_getStringByIndex(const UResourceBundle *resourceBundle, int32_t indexS, int32_t* len, UErrorCode *status); /** * Returns a UTF-8 string from a resource at the specified index. * The UTF-8 string may be returnable directly as a pointer, or * it may need to be copied, or transformed from UTF-16 using u_strToUTF8() * or equivalent. * * If forceCopy==true, then the string is always written to the dest buffer * and dest is returned. * * If forceCopy==false, then the string is returned as a pointer if possible, * without needing a dest buffer (it can be NULL). If the string needs to be * copied or transformed, then it may be placed into dest at an arbitrary offset. * * If the string is to be written to dest, then U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING are set if appropriate, as usual. * * If the string is transformed from UTF-16, then a conversion error may occur * if an unpaired surrogate is encountered. If the function is successful, then * the output UTF-8 string is always well-formed. * * @param resB Resource bundle. * @param stringIndex An index to the wanted string. * @param dest Destination buffer. Can be NULL only if capacity=*length==0. * @param pLength Input: Capacity of destination buffer. * Output: Actual length of the UTF-8 string, not counting the * terminating NUL, even in case of U_BUFFER_OVERFLOW_ERROR. * Can be NULL, meaning capacity=0 and the string length is not * returned to the caller. * @param forceCopy If true, then the output string will always be written to * dest, with U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING set if appropriate. * If false, then the dest buffer may or may not contain a * copy of the string. dest may or may not be modified. * If a copy needs to be written, then the UErrorCode parameter * indicates overflow etc. as usual. * @param status Pointer to a standard ICU error code. Its input value must * pass the U_SUCCESS() test, or else the function returns * immediately. Check for U_FAILURE() on output or use with * function chaining. (See User Guide for details.) * @return The pointer to the UTF-8 string. It may be dest, or at some offset * from dest (only if !forceCopy), or in unrelated memory. * Always NUL-terminated unless the string was written to dest and * length==capacity (in which case U_STRING_NOT_TERMINATED_WARNING is set). * * @see ures_getStringByIndex * @see u_strToUTF8 * @stable ICU 3.6 */ U_CAPI const char * U_EXPORT2 ures_getUTF8StringByIndex(const UResourceBundle *resB, int32_t stringIndex, char *dest, int32_t *pLength, UBool forceCopy, UErrorCode *status); /** * Returns a resource in a given resource that has a given key. This procedure works only with table * resources. Features a fill-in parameter. * * @param resourceBundle a resource * @param key a key associated with the wanted resource * @param fillIn if NULL a new UResourceBundle struct is allocated and must be closed by the caller. * 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 close it * @stable ICU 2.0 */ U_CAPI UResourceBundle* U_EXPORT2 ures_getByKey(const UResourceBundle *resourceBundle, const char* key, UResourceBundle *fillIn, UErrorCode *status); /** * Returns a string in a given resource that has a given key. This procedure works only with table * resources. * * @param resB a resource * @param key a key associated with the wanted string * @param len fill in length of the string * @param status fills in the outgoing error code. If an error occurred, we may return NULL, but don't * count on it. Check status instead! * @return a pointer to a zero-terminated UChar array which lives in a memory mapped/DLL file. * @stable ICU 2.0 */ U_CAPI const UChar* U_EXPORT2 ures_getStringByKey(const UResourceBundle *resB, const char* key, int32_t* len, UErrorCode *status); /** * Returns a UTF-8 string from a resource and a key. * This function works only with table resources. * * The UTF-8 string may be returnable directly as a pointer, or * it may need to be copied, or transformed from UTF-16 using u_strToUTF8() * or equivalent. * * If forceCopy==true, then the string is always written to the dest buffer * and dest is returned. * * If forceCopy==false, then the string is returned as a pointer if possible, * without needing a dest buffer (it can be NULL). If the string needs to be * copied or transformed, then it may be placed into dest at an arbitrary offset. * * If the string is to be written to dest, then U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING are set if appropriate, as usual. * * If the string is transformed from UTF-16, then a conversion error may occur * if an unpaired surrogate is encountered. If the function is successful, then * the output UTF-8 string is always well-formed. * * @param resB Resource bundle. * @param key A key associated with the wanted resource * @param dest Destination buffer. Can be NULL only if capacity=*length==0. * @param pLength Input: Capacity of destination buffer. * Output: Actual length of the UTF-8 string, not counting the * terminating NUL, even in case of U_BUFFER_OVERFLOW_ERROR. * Can be NULL, meaning capacity=0 and the string length is not * returned to the caller. * @param forceCopy If true, then the output string will always be written to * dest, with U_BUFFER_OVERFLOW_ERROR and * U_STRING_NOT_TERMINATED_WARNING set if appropriate. * If false, then the dest buffer may or may not contain a * copy of the string. dest may or may not be modified. * If a copy needs to be written, then the UErrorCode parameter * indicates overflow etc. as usual. * @param status Pointer to a standard ICU error code. Its input value must * pass the U_SUCCESS() test, or else the function returns * immediately. Check for U_FAILURE() on output or use with * function chaining. (See User Guide for details.) * @return The pointer to the UTF-8 string. It may be dest, or at some offset * from dest (only if !forceCopy), or in unrelated memory. * Always NUL-terminated unless the string was written to dest and * length==capacity (in which case U_STRING_NOT_TERMINATED_WARNING is set). * * @see ures_getStringByKey * @see u_strToUTF8 * @stable ICU 3.6 */ U_CAPI const char * U_EXPORT2 ures_getUTF8StringByKey(const UResourceBundle *resB, const char *key, char *dest, int32_t *pLength, UBool forceCopy, UErrorCode *status); #if U_SHOW_CPLUSPLUS_API #include "unicode/unistr.h" U_NAMESPACE_BEGIN /** * Returns the string value from a string resource bundle. * * @param resB a resource, should have type URES_STRING * @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 The string value, or a bogus string if there is a failure UErrorCode. * @stable ICU 2.0 */ inline UnicodeString ures_getUnicodeString(const UResourceBundle *resB, UErrorCode* status) { UnicodeString result; int32_t len = 0; const UChar *r = ures_getString(resB, &len, status); if(U_SUCCESS(*status)) { result.setTo(true, r, len); } else { result.setToBogus(); } return result; } /** * Returns the next string in a resource, or an empty string if there are no more resources * to iterate over. * Use ures_getNextString() instead to distinguish between * the end of the iteration and a real empty string value. * * @param resB a resource * @param key fill in for key associated with this string * @param status fills in the outgoing error code * @return The string value, or a bogus string if there is a failure UErrorCode. * @stable ICU 2.0 */ inline UnicodeString ures_getNextUnicodeString(UResourceBundle *resB, const char ** key, UErrorCode* status) { UnicodeString result; int32_t len = 0; const UChar* r = ures_getNextString(resB, &len, key, status); if(U_SUCCESS(*status)) { result.setTo(true, r, len); } else { result.setToBogus(); } return result; } /** * Returns the string in a given resource array or table at the specified index. * * @param resB a resource * @param indexS an index to the wanted string. * @param status fills in the outgoing error code * @return The string value, or a bogus string if there is a failure UErrorCode. * @stable ICU 2.0 */ inline UnicodeString ures_getUnicodeStringByIndex(const UResourceBundle *resB, int32_t indexS, UErrorCode* status) { UnicodeString result; int32_t len = 0; const UChar* r = ures_getStringByIndex(resB, indexS, &len, status); if(U_SUCCESS(*status)) { result.setTo(true, r, len); } else { result.setToBogus(); } return result; } /** * Returns a string in a resource that has a given key. * This procedure works only with table resources. * * @param resB a resource * @param key a key associated with the wanted string * @param status fills in the outgoing error code * @return The string value, or a bogus string if there is a failure UErrorCode. * @stable ICU 2.0 */ inline UnicodeString ures_getUnicodeStringByKey(const UResourceBundle *resB, const char* key, UErrorCode* status) { UnicodeString result; int32_t len = 0; const UChar* r = ures_getStringByKey(resB, key, &len, status); if(U_SUCCESS(*status)) { result.setTo(true, r, len); } else { result.setToBogus(); } return result; } U_NAMESPACE_END #endif /** * Create a string enumerator, owned by the caller, of all locales located within * the specified resource tree. * @param packageName name of the tree, such as (NULL) or U_ICUDATA_ALIAS or or "ICUDATA-coll" * This call is similar to uloc_getAvailable(). * @param status error code * @stable ICU 3.2 */ U_CAPI UEnumeration* U_EXPORT2 ures_openAvailableLocales(const char *packageName, UErrorCode *status); #endif /*_URES*/ /*eof*/