sl@0: /* sl@0: ****************************************************************************** sl@0: * sl@0: * Copyright (C) 1996-2005, International Business Machines Corporation sl@0: * and others. All Rights Reserved. sl@0: * sl@0: ****************************************************************************** sl@0: * sl@0: * File resbund.h sl@0: * sl@0: * CREATED BY sl@0: * Richard Gillam sl@0: * sl@0: * Modification History: sl@0: * sl@0: * Date Name Description sl@0: * 2/5/97 aliu Added scanForLocaleInFile. Added sl@0: * constructor which attempts to read resource bundle sl@0: * from a specific file, without searching other files. sl@0: * 2/11/97 aliu Added UErrorCode return values to constructors. Fixed sl@0: * infinite loops in scanForFile and scanForLocale. sl@0: * Modified getRawResourceData to not delete storage sl@0: * in localeData and resourceData which it doesn't own. sl@0: * Added Mac compatibility #ifdefs for tellp() and sl@0: * ios::nocreate. sl@0: * 2/18/97 helena Updated with 100% documentation coverage. sl@0: * 3/13/97 aliu Rewrote to load in entire resource bundle and store sl@0: * it as a Hashtable of ResourceBundleData objects. sl@0: * Added state table to govern parsing of files. sl@0: * Modified to load locale index out of new file sl@0: * distinct from default.txt. sl@0: * 3/25/97 aliu Modified to support 2-d arrays, needed for timezone sl@0: * data. Added support for custom file suffixes. Again, sl@0: * needed to support timezone data. sl@0: * 4/7/97 aliu Cleaned up. sl@0: * 03/02/99 stephen Removed dependency on FILE*. sl@0: * 03/29/99 helena Merged Bertrand and Stephen's changes. sl@0: * 06/11/99 stephen Removed parsing of .txt files. sl@0: * Reworked to use new binary format. sl@0: * Cleaned up. sl@0: * 06/14/99 stephen Removed methods taking a filename suffix. sl@0: * 11/09/99 weiv Added getLocale(), fRealLocale, removed fRealLocaleID sl@0: ****************************************************************************** sl@0: */ sl@0: sl@0: #ifndef RESBUND_H sl@0: #define RESBUND_H sl@0: sl@0: #include "unicode/utypes.h" sl@0: #include "unicode/uobject.h" sl@0: #include "unicode/ures.h" sl@0: #include "unicode/unistr.h" sl@0: #include "unicode/locid.h" sl@0: sl@0: /** sl@0: * \file sl@0: * \brief C++ API: Resource Bundle sl@0: */ sl@0: sl@0: U_NAMESPACE_BEGIN sl@0: sl@0: /** sl@0: * A class representing a collection of resource information pertaining to a given sl@0: * locale. A resource bundle provides a way of accessing locale- specfic information in sl@0: * a data file. You create a resource bundle that manages the resources for a given sl@0: * locale and then ask it for individual resources. sl@0: *

sl@0: * Resource bundles in ICU4C are currently defined using text files which conform to the following sl@0: * BNF definition. sl@0: * More on resource bundle concepts and syntax can be found in the sl@0: * Users Guide. sl@0: *

sl@0: * sl@0: * The ResourceBundle class is not suitable for subclassing. sl@0: * sl@0: * @stable ICU 2.0 sl@0: */ sl@0: class U_COMMON_API ResourceBundle : public UObject { sl@0: public: sl@0: /** sl@0: * Constructor sl@0: * sl@0: * @param packageName The packageName and locale together point to an ICU udata object, sl@0: * as defined by udata_open( packageName, "res", locale, err) sl@0: * or equivalent. Typically, packageName will refer to a (.dat) file, or to sl@0: * a package registered with udata_setAppData(). Using a full file or directory sl@0: * pathname for packageName is deprecated. sl@0: * @param locale This is the locale this resource bundle is for. To get resources sl@0: * for the French locale, for example, you would create a sl@0: * ResourceBundle passing Locale::FRENCH for the "locale" parameter, sl@0: * and all subsequent calls to that resource bundle will return sl@0: * resources that pertain to the French locale. If the caller doesn't sl@0: * pass a locale parameter, the default locale for the system (as sl@0: * returned by Locale::getDefault()) will be used. sl@0: * @param err The Error Code. sl@0: * The UErrorCode& err parameter is used to return status information to the user. To sl@0: * check whether the construction succeeded or not, you should check the value of sl@0: * U_SUCCESS(err). If you wish more detailed information, you can check for sl@0: * informational error results which still indicate success. U_USING_FALLBACK_WARNING sl@0: * indicates that a fall back locale was used. For example, 'de_CH' was requested, sl@0: * but nothing was found there, so 'de' was used. U_USING_DEFAULT_WARNING indicates that sl@0: * the default locale data was used; neither the requested locale nor any of its sl@0: * fall back locales could be found. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(const UnicodeString& packageName, sl@0: const Locale& locale, sl@0: UErrorCode& err); sl@0: sl@0: /** sl@0: * Construct a resource bundle for the default bundle in the specified package. sl@0: * sl@0: * @param packageName The packageName and locale together point to an ICU udata object, sl@0: * as defined by udata_open( packageName, "res", locale, err) sl@0: * or equivalent. Typically, packageName will refer to a (.dat) file, or to sl@0: * a package registered with udata_setAppData(). Using a full file or directory sl@0: * pathname for packageName is deprecated. sl@0: * @param err A UErrorCode value sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(const UnicodeString& packageName, sl@0: UErrorCode& err); sl@0: sl@0: /** sl@0: * Construct a resource bundle for the ICU default bundle. sl@0: * sl@0: * @param err A UErrorCode value sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(UErrorCode &err); sl@0: sl@0: /** sl@0: * Standard constructor, onstructs a resource bundle for the locale-specific sl@0: * bundle in the specified package. sl@0: * sl@0: * @param packageName The packageName and locale together point to an ICU udata object, sl@0: * as defined by udata_open( packageName, "res", locale, err) sl@0: * or equivalent. Typically, packageName will refer to a (.dat) file, or to sl@0: * a package registered with udata_setAppData(). Using a full file or directory sl@0: * pathname for packageName is deprecated. sl@0: * NULL is used to refer to ICU data. sl@0: * @param locale The locale for which to open a resource bundle. sl@0: * @param err A UErrorCode value sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(const char* packageName, sl@0: const Locale& locale, sl@0: UErrorCode& err); sl@0: sl@0: /** sl@0: * Copy constructor. sl@0: * sl@0: * @param original The resource bundle to copy. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(const ResourceBundle &original); sl@0: sl@0: /** sl@0: * Constructor from a C UResourceBundle. The resource bundle is sl@0: * copied and not adopted. ures_close will still need to be used on the sl@0: * original resource bundle. sl@0: * sl@0: * @param res A pointer to the C resource bundle. sl@0: * @param status A UErrorCode value. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle(UResourceBundle *res, sl@0: UErrorCode &status); sl@0: sl@0: /** sl@0: * Assignment operator. sl@0: * sl@0: * @param other The resource bundle to copy. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle& sl@0: operator=(const ResourceBundle& other); sl@0: sl@0: /** Destructor. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: virtual ~ResourceBundle(); sl@0: sl@0: /** sl@0: * Clone this object. sl@0: * Clones can be used concurrently in multiple threads. sl@0: * If an error occurs, then NULL is returned. sl@0: * The caller must delete the clone. sl@0: * sl@0: * @return a clone of this object sl@0: * sl@0: * @see getDynamicClassID sl@0: * @stable ICU 2.8 sl@0: */ sl@0: ResourceBundle *clone() const; sl@0: sl@0: /** sl@0: * Returns the size of a resource. Size for scalar types is always 1, and for vector/table types is sl@0: * the number of child resources. sl@0: * @warning Integer array is treated as a scalar type. There are no sl@0: * APIs to access individual members of an integer array. It sl@0: * is always returned as a whole. sl@0: * sl@0: * @return number of resources in a given resource. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: int32_t sl@0: getSize(void) const; sl@0: sl@0: /** sl@0: * returns a string from a string resource type sl@0: * sl@0: * @param status fills in the outgoing error code sl@0: * could be U_MISSING_RESOURCE_ERROR if the key is not found sl@0: * could be a warning sl@0: * e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING sl@0: * @return a pointer to a zero-terminated UChar array which lives in a memory mapped/DLL file. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UnicodeString sl@0: getString(UErrorCode& status) const; sl@0: sl@0: /** sl@0: * returns a binary data from a resource. Can be used at most primitive resource types (binaries, sl@0: * strings, ints) sl@0: * sl@0: * @param len fills in the length of resulting byte chunk sl@0: * @param status fills in the outgoing error code sl@0: * could be U_MISSING_RESOURCE_ERROR if the key is not found sl@0: * could be a warning sl@0: * e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING sl@0: * @return a pointer to a chunk of unsigned bytes which live in a memory mapped/DLL file. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: const uint8_t* sl@0: getBinary(int32_t& len, UErrorCode& status) const; sl@0: sl@0: sl@0: /** sl@0: * returns an integer vector from a resource. sl@0: * sl@0: * @param len fills in the length of resulting integer vector sl@0: * @param status fills in the outgoing error code sl@0: * could be U_MISSING_RESOURCE_ERROR if the key is not found sl@0: * could be a warning sl@0: * e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING sl@0: * @return a pointer to a vector of integers that lives in a memory mapped/DLL file. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: const int32_t* sl@0: getIntVector(int32_t& len, UErrorCode& status) const; sl@0: sl@0: /** sl@0: * returns an unsigned integer from a resource. sl@0: * This integer is originally 28 bits. sl@0: * sl@0: * @param status fills in the outgoing error code sl@0: * could be U_MISSING_RESOURCE_ERROR if the key is not found sl@0: * could be a warning sl@0: * e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING sl@0: * @return an unsigned integer value sl@0: * @stable ICU 2.0 sl@0: */ sl@0: uint32_t sl@0: getUInt(UErrorCode& status) const; sl@0: sl@0: /** sl@0: * returns a signed integer from a resource. sl@0: * This integer is originally 28 bit and the sign gets propagated. sl@0: * sl@0: * @param status fills in the outgoing error code sl@0: * could be U_MISSING_RESOURCE_ERROR if the key is not found sl@0: * could be a warning sl@0: * e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING sl@0: * @return a signed integer value sl@0: * @stable ICU 2.0 sl@0: */ sl@0: int32_t sl@0: getInt(UErrorCode& status) const; sl@0: sl@0: /** sl@0: * Checks whether the resource has another element to iterate over. sl@0: * sl@0: * @return TRUE if there are more elements, FALSE if there is no more elements sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UBool sl@0: hasNext(void) const; sl@0: sl@0: /** sl@0: * Resets the internal context of a resource so that iteration starts from the first element. sl@0: * sl@0: * @stable ICU 2.0 sl@0: */ sl@0: void sl@0: resetIterator(void); sl@0: sl@0: /** sl@0: * Returns the key associated with this resource. Not all the resources have a key - only sl@0: * those that are members of a table. sl@0: * sl@0: * @return a key associated to this resource, or NULL if it doesn't have a key sl@0: * @stable ICU 2.0 sl@0: */ sl@0: const char* sl@0: getKey(void) const; sl@0: sl@0: /** sl@0: * Gets the locale ID of the resource bundle as a string. sl@0: * Same as getLocale().getName() . sl@0: * sl@0: * @return the locale ID of the resource bundle as a string sl@0: * @stable ICU 2.0 sl@0: */ sl@0: const char* sl@0: getName(void) const; sl@0: sl@0: sl@0: /** sl@0: * Returns the type of a resource. Available types are defined in enum UResType sl@0: * sl@0: * @return type of the given resource. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UResType sl@0: getType(void) const; sl@0: sl@0: /** sl@0: * Returns the next resource in a given resource or NULL if there are no more resources sl@0: * sl@0: * @param status fills in the outgoing error code sl@0: * @return ResourceBundle object. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle sl@0: getNext(UErrorCode& status); sl@0: sl@0: /** sl@0: * Returns the next string in a resource or NULL if there are no more resources sl@0: * to iterate over. sl@0: * sl@0: * @param status fills in the outgoing error code sl@0: * @return an UnicodeString object. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UnicodeString sl@0: getNextString(UErrorCode& status); sl@0: sl@0: /** sl@0: * Returns the next string in a resource or NULL if there are no more resources sl@0: * to iterate over. sl@0: * sl@0: * @param key fill in for key associated with this string sl@0: * @param status fills in the outgoing error code sl@0: * @return an UnicodeString object. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UnicodeString sl@0: getNextString(const char ** key, sl@0: UErrorCode& status); sl@0: sl@0: /** sl@0: * Returns the resource in a resource at the specified index. sl@0: * sl@0: * @param index an index to the wanted resource. sl@0: * @param status fills in the outgoing error code sl@0: * @return ResourceBundle object. If there is an error, resource is invalid. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle sl@0: get(int32_t index, sl@0: UErrorCode& status) const; sl@0: sl@0: /** sl@0: * Returns the string in a given resource at the specified index. sl@0: * sl@0: * @param index an index to the wanted string. sl@0: * @param status fills in the outgoing error code sl@0: * @return an UnicodeString object. If there is an error, string is bogus sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UnicodeString sl@0: getStringEx(int32_t index, sl@0: UErrorCode& status) const; sl@0: sl@0: /** sl@0: * Returns a resource in a resource that has a given key. This procedure works only with table sl@0: * resources. sl@0: * sl@0: * @param key a key associated with the wanted resource sl@0: * @param status fills in the outgoing error code. sl@0: * @return ResourceBundle object. If there is an error, resource is invalid. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: ResourceBundle sl@0: get(const char* key, sl@0: UErrorCode& status) const; sl@0: sl@0: /** sl@0: * Returns a string in a resource that has a given key. This procedure works only with table sl@0: * resources. sl@0: * sl@0: * @param key a key associated with the wanted string sl@0: * @param status fills in the outgoing error code sl@0: * @return an UnicodeString object. If there is an error, string is bogus sl@0: * @stable ICU 2.0 sl@0: */ sl@0: UnicodeString sl@0: getStringEx(const char* key, sl@0: UErrorCode& status) const; sl@0: sl@0: /** sl@0: * Return the version number associated with this ResourceBundle as a string. Please sl@0: * use getVersion, as this method is going to be deprecated. sl@0: * sl@0: * @return A version number string as specified in the resource bundle or its parent. sl@0: * The caller does not own this string. sl@0: * @see getVersion sl@0: * @deprecated ICU 2.8 Use getVersion instead. sl@0: */ sl@0: const char* sl@0: getVersionNumber(void) const; sl@0: sl@0: /** sl@0: * Return the version number associated with this ResourceBundle as a UVersionInfo array. sl@0: * sl@0: * @param versionInfo A UVersionInfo array that is filled with the version number sl@0: * as specified in the resource bundle or its parent. sl@0: * @stable ICU 2.0 sl@0: */ sl@0: void sl@0: getVersion(UVersionInfo versionInfo) const; sl@0: sl@0: /** sl@0: * Return the Locale associated with this ResourceBundle. sl@0: * sl@0: * @return a Locale object sl@0: * @deprecated ICU 2.8 Use getLocale(ULocDataLocaleType type, UErrorCode &status) overload instead. sl@0: */ sl@0: const Locale& sl@0: getLocale(void) const; sl@0: sl@0: /** sl@0: * Return the Locale associated with this ResourceBundle. sl@0: * @param type You can choose between requested, valid and actual sl@0: * locale. For description see the definition of sl@0: * ULocDataLocaleType in uloc.h sl@0: * @param status just for catching illegal arguments sl@0: * sl@0: * @return a Locale object sl@0: * @stable ICU 2.8 sl@0: */ sl@0: const Locale sl@0: getLocale(ULocDataLocaleType type, UErrorCode &status) const; sl@0: /** sl@0: * This API implements multilevel fallback sl@0: * @internal sl@0: */ sl@0: ResourceBundle sl@0: getWithFallback(const char* key, UErrorCode& status); sl@0: /** sl@0: * ICU "poor man's RTTI", returns a UClassID for the actual class. sl@0: * sl@0: * @stable ICU 2.2 sl@0: */ sl@0: virtual UClassID getDynamicClassID() const; sl@0: sl@0: /** sl@0: * ICU "poor man's RTTI", returns a UClassID for this class. sl@0: * sl@0: * @stable ICU 2.2 sl@0: */ sl@0: static UClassID U_EXPORT2 getStaticClassID(); sl@0: sl@0: private: sl@0: ResourceBundle(); // default constructor not implemented sl@0: sl@0: UResourceBundle *fResource; sl@0: void constructForLocale(const UnicodeString& path, const Locale& locale, UErrorCode& error); sl@0: Locale *fLocale; sl@0: sl@0: }; sl@0: sl@0: U_NAMESPACE_END sl@0: #endif