Quelle resbund.h
Sprache: C
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright ( C ) 1996 - 2013 , International Business Machines Corporation
* and others . All Rights Reserved .
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* File resbund . h
*
* CREATED BY
* Richard Gillam
*
* Modification History :
*
* Date Name Description
* 2 / 5 / 97 aliu Added scanForLocaleInFile . Added
* constructor which attempts to read resource bundle
* from a specific file , without searching other files .
* 2 / 11 / 97 aliu Added UErrorCode return values to constructors . Fixed
* infinite loops in scanForFile and scanForLocale .
* Modified getRawResourceData to not delete storage
* in localeData and resourceData which it doesn ' t own .
* Added Mac compatibility # ifdefs for tellp ( ) and
* ios : : nocreate .
* 2 / 18 / 97 helena Updated with 100 % documentation coverage .
* 3 / 13 / 97 aliu Rewrote to load in entire resource bundle and store
* it as a Hashtable of ResourceBundleData objects .
* Added state table to govern parsing of files .
* Modified to load locale index out of new file
* distinct from default . txt .
* 3 / 25 / 97 aliu Modified to support 2 - d arrays , needed for timezone
* data . Added support for custom file suffixes . Again ,
* needed to support timezone data .
* 4 / 7 / 97 aliu Cleaned up .
* 03 / 02 / 99 stephen Removed dependency on FILE * .
* 03 / 29 / 99 helena Merged Bertrand and Stephen ' s changes .
* 06 / 11 / 99 stephen Removed parsing of . txt files .
* Reworked to use new binary format .
* Cleaned up .
* 06 / 14 / 99 stephen Removed methods taking a filename suffix .
* 11 / 09 / 99 weiv Added getLocale ( ) , fRealLocale , removed fRealLocaleID
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*/
#ifndef RESBUND_H
#define RESBUND_H
#include "unicode/utypes.h"
#if U_SHOW_CPLUSPLUS_API
#include "unicode/uobject.h"
#include "unicode/ures.h"
#include "unicode/unistr.h"
#include "unicode/locid.h"
/**
* \ file
* \ brief C + + API : Resource Bundle
*/
U_NAMESPACE_BEGIN
/**
* A class 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 >
*
* The ResourceBundle class is not suitable for subclassing .
*
* @ stable ICU 2 . 0
*/
class U_COMMON_API ResourceBundle :
public UObject {
public :
/**
* Constructor
*
* @ 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 .
* @ param locale This is the locale this resource bundle is for . To get resources
* for the French locale , for example , you would create a
* ResourceBundle passing Locale : : FRENCH for the " locale " parameter ,
* and all subsequent calls to that resource bundle will return
* resources that pertain to the French locale . If the caller doesn ' t
* pass a locale parameter , the default locale for the system ( as
* returned by Locale : : getDefault ( ) ) will be used .
* @ param err The 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 error 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 was used ; neither the requested locale nor any of its
* fall back locales could be found .
* @ stable ICU 2 . 0
*/
ResourceBundle(
const UnicodeString& packageName,
const Locale& locale,
UErrorCode& err);
/**
* Construct a resource bundle for the default bundle in the specified package .
*
* @ 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 .
* @ param err A UErrorCode value
* @ stable ICU 2 . 0
*/
ResourceBundle(
const UnicodeString& packageName,
UErrorCode& err);
/**
* Construct a resource bundle for the ICU default bundle .
*
* @ param err A UErrorCode value
* @ stable ICU 2 . 0
*/
ResourceBundle(UErrorCode &err);
/**
* Standard constructor , constructs a resource bundle for the locale - specific
* bundle in the specified package .
*
* @ 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 .
* nullptr is used to refer to ICU data .
* @ param locale The locale for which to open a resource bundle .
* @ param err A UErrorCode value
* @ stable ICU 2 . 0
*/
ResourceBundle(
const char * packageName,
const Locale& locale,
UErrorCode& err);
/**
* Copy constructor .
*
* @ param original The resource bundle to copy .
* @ stable ICU 2 . 0
*/
ResourceBundle(
const ResourceBundle &original);
/**
* Constructor from a C UResourceBundle . The resource bundle is
* copied and not adopted . ures_close will still need to be used on the
* original resource bundle .
*
* @ param res A pointer to the C resource bundle .
* @ param status A UErrorCode value .
* @ stable ICU 2 . 0
*/
ResourceBundle(UResourceBundle *res,
UErrorCode &status);
/**
* Assignment operator .
*
* @ param other The resource bundle to copy .
* @ stable ICU 2 . 0
*/
ResourceBundle&
operator =(
const ResourceBundle& other);
/** Destructor.
* @ stable ICU 2 . 0
*/
virtual ~ResourceBundle();
/**
* Clone this object .
* Clones can be used concurrently in multiple threads .
* If an error occurs , then nullptr is returned .
* The caller must delete the clone .
*
* @ return a clone of this object
*
* @ see getDynamicClassID
* @ stable ICU 2 . 8
*/
ResourceBundle *clone()
const ;
/**
* 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 .
*
* @ return number of resources in a given resource .
* @ stable ICU 2 . 0
*/
int32_t getSize()
const ;
/**
* returns a string from a string resource type
*
* @ 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 warning
* e . g . : < TT > U_USING_FALLBACK_WARNING < / TT > , < TT > U_USING_DEFAULT_WARNING < / TT >
* @ return a pointer to a zero - terminated char16_t array which lives in a memory mapped / DLL file .
* @ stable ICU 2 . 0
*/
UnicodeString
getString(UErrorCode& status)
const ;
/**
* returns a binary data from a resource . Can be used at most primitive resource types ( binaries ,
* strings , ints )
*
* @ 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
* could be a warning
* 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 .
* @ stable ICU 2 . 0
*/
const uint8_t*
getBinary(int32_t& len, UErrorCode& status)
const ;
/**
* returns an integer vector from a resource .
*
* @ param len fills in the length of resulting integer vector
* @ 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 warning
* e . g . : < TT > U_USING_FALLBACK_WARNING < / TT > , < TT > U_USING_DEFAULT_WARNING < / TT >
* @ return a pointer to a vector of integers that lives in a memory mapped / DLL file .
* @ stable ICU 2 . 0
*/
const int32_t*
getIntVector(int32_t& len, UErrorCode& status)
const ;
/**
* returns an unsigned integer from a resource .
* This integer is originally 28 bits .
*
* @ 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 warning
* e . g . : < TT > U_USING_FALLBACK_WARNING < / TT > , < TT > U_USING_DEFAULT_WARNING < / TT >
* @ return an unsigned integer value
* @ stable ICU 2 . 0
*/
uint32_t
getUInt(UErrorCode& status)
const ;
/**
* returns a signed integer from a resource .
* This integer is originally 28 bit and the sign gets propagated .
*
* @ 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 warning
* e . g . : < TT > U_USING_FALLBACK_WARNING < / TT > , < TT > U_USING_DEFAULT_WARNING < / TT >
* @ return a signed integer value
* @ stable ICU 2 . 0
*/
int32_t
getInt(UErrorCode& status)
const ;
/**
* Checks whether the resource has another element to iterate over .
*
* @ return true if there are more elements , false if there is no more elements
* @ stable ICU 2 . 0
*/
UBool hasNext()
const ;
/**
* Resets the internal context of a resource so that iteration starts from the first element .
*
* @ stable ICU 2 . 0
*/
void resetIterator();
/**
* Returns the key associated with this resource . Not all the resources have a key - only
* those that are members of a table .
*
* @ return a key associated to this resource , or nullptr if it doesn ' t have a key
* @ stable ICU 2 . 0
*/
const char * getKey()
const ;
/**
* Gets the locale ID of the resource bundle as a string .
* Same as getLocale ( ) . getName ( ) .
*
* @ return the locale ID of the resource bundle as a string
* @ stable ICU 2 . 0
*/
const char * getName()
const ;
/**
* Returns the type of a resource . Available types are defined in enum UResType
*
* @ return type of the given resource .
* @ stable ICU 2 . 0
*/
UResType getType()
const ;
/**
* Returns the next resource in a given resource or nullptr if there are no more resources
*
* @ param status fills in the outgoing error code
* @ return ResourceBundle object .
* @ stable ICU 2 . 0
*/
ResourceBundle
getNext(UErrorCode& status);
/**
* Returns the next string in a resource or nullptr if there are no more resources
* to iterate over .
*
* @ param status fills in the outgoing error code
* @ return an UnicodeString object .
* @ stable ICU 2 . 0
*/
UnicodeString
getNextString(UErrorCode& status);
/**
* Returns the next string in a resource or nullptr if there are no more resources
* to iterate over .
*
* @ param key fill in for key associated with this string
* @ param status fills in the outgoing error code
* @ return an UnicodeString object .
* @ stable ICU 2 . 0
*/
UnicodeString
getNextString(
const char ** key,
UErrorCode& status);
/**
* Returns the resource in a resource at the specified index .
*
* @ param index an index to the wanted resource .
* @ param status fills in the outgoing error code
* @ return ResourceBundle object . If there is an error , resource is invalid .
* @ stable ICU 2 . 0
*/
ResourceBundle
get(int32_t index,
UErrorCode& status)
const ;
/**
* Returns the string in a given resource at the specified index .
*
* @ param index an index to the wanted string .
* @ param status fills in the outgoing error code
* @ return an UnicodeString object . If there is an error , string is bogus
* @ stable ICU 2 . 0
*/
UnicodeString
getStringEx(int32_t index,
UErrorCode& status)
const ;
/**
* Returns a resource in a resource that has a given key . This procedure works only with table
* resources .
*
* @ param key a key associated with the wanted resource
* @ param status fills in the outgoing error code .
* @ return ResourceBundle object . If there is an error , resource is invalid .
* @ stable ICU 2 . 0
*/
ResourceBundle
get(
const char * key,
UErrorCode& status)
const ;
/**
* Returns a string in a resource that has a given key . This procedure works only with table
* resources .
*
* @ param key a key associated with the wanted string
* @ param status fills in the outgoing error code
* @ return an UnicodeString object . If there is an error , string is bogus
* @ stable ICU 2 . 0
*/
UnicodeString
getStringEx(
const char * key,
UErrorCode& status)
const ;
#ifndef U_HIDE_DEPRECATED_API
/**
* Return the version number associated with this ResourceBundle as a string . Please
* use getVersion , as this method is going to be deprecated .
*
* @ return A version number string as specified in the resource bundle or its parent .
* The caller does not own this string .
* @ see getVersion
* @ deprecated ICU 2 . 8 Use getVersion instead .
*/
const char * getVersionNumber()
const ;
#endif /* U_HIDE_DEPRECATED_API */
/**
* Return the version number associated with this ResourceBundle as a UVersionInfo array .
*
* @ 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
*/
void
getVersion(UVersionInfo versionInfo)
const ;
#ifndef U_HIDE_DEPRECATED_API
/**
* Return the Locale associated with this ResourceBundle .
*
* @ return a Locale object
* @ deprecated ICU 2 . 8 Use getLocale ( ULocDataLocaleType type , UErrorCode & status ) overload instead .
*/
const Locale& getLocale()
const ;
#endif /* U_HIDE_DEPRECATED_API */
/**
* Return the Locale associated with this ResourceBundle .
* @ 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 object
* @ stable ICU 2 . 8
*/
Locale
getLocale(ULocDataLocaleType type, UErrorCode &status)
const ;
#ifndef U_HIDE_INTERNAL_API
/**
* This API implements multilevel fallback
* @ internal
*/
ResourceBundle
getWithFallback(
const char * key, UErrorCode& status);
#endif /* U_HIDE_INTERNAL_API */
/**
* ICU " poor man ' s RTTI " , returns a UClassID for the actual class .
*
* @ stable ICU 2 . 2
*/
virtual UClassID getDynamicClassID()
const override;
/**
* ICU " poor man ' s RTTI " , returns a UClassID for this class .
*
* @ stable ICU 2 . 2
*/
static UClassID U_EXPORT2 getStaticClassID();
private :
ResourceBundle() =
delete ;
// default constructor not implemented
UResourceBundle *fResource;
void constructForLocale(
const UnicodeString& path,
const Locale& locale, UError
Code& error);
Locale *fLocale;
};
U_NAMESPACE_END
#endif /* U_SHOW_CPLUSPLUS_API */
#endif
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