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/*
* Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
* Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFObject.h"
#import "OFKernelEventObserver.h"
#import "OFLHAArchiveEntry.h"
#import "OFString.h"
OF_ASSUME_NONNULL_BEGIN
@class OFStream;
@class OFURI;
@class OFIRI;
@class OFStream;
/**
* @class OFLHAArchive OFLHAArchive.h ObjFW/OFLHAArchive.h
*
* @brief A class for accessing and manipulating LHA files.
*/
OF_SUBCLASSING_RESTRICTED
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}
/**
* @brief The encoding to use for the archive. Defaults to ISO 8859-1.
*/
@property (nonatomic) OFStringEncoding encoding;
/**
* @brief A stream for reading the current entry.
*
* @note This is only available in read mode.
*
* @note The returned stream conforms to @ref OFReadyForReadingObserving if the
* underlying stream does so, too.
*/
@property (readonly, nonatomic) OFStream *streamForReadingCurrentEntry;
* @param URI The URI to the LHA file
* @param IRI The IRI to the LHA file
* @param mode The mode for the LHA file. Valid modes are "r" for reading,
* "w" for creating a new file and "a" for appending to an existing
* archive.
* @return A new, autoreleased OFLHAArchive
*/
+ (instancetype)archiveWithURI: (OFURI *)URI mode: (OFString *)mode;
+ (instancetype)archiveWithIRI: (OFIRI *)IRI mode: (OFString *)mode;
/**
* @brief Creates a URI for accessing a the specified file within the specified
* LHA archive.
* @brief Creates an IRI for accessing a the specified file within the
* specified LHA archive.
*
* @param path The path of the file within the archive
* @param URI The URI of the archive
* @return A URI for accessing the specified file within the specified LHA
* @param IRI The IRI of the archive
* @return An IRI for accessing the specified file within the specified LHA
* archive
*/
+ (OFURI *)URIForFilePath: (OFString *)path inArchiveWithURI: (OFURI *)URI;
+ (OFIRI *)IRIForFilePath: (OFString *)path inArchiveWithIRI: (OFIRI *)IRI;
- (instancetype)init OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFLHAArchive object with the
* specified stream.
*
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- (instancetype)initWithStream: (OFStream *)stream
mode: (OFString *)mode OF_DESIGNATED_INITIALIZER;
/**
* @brief Initializes an already allocated OFLHAArchive object with the
* specified file.
*
* @param URI The URI to the LHA file
* @param IRI The IRI to the LHA file
* @param mode The mode for the LHA file. Valid modes are "r" for reading,
* "w" for creating a new file and "a" for appending to an existing
* archive.
* @return An initialized OFLHAArchive
*/
- (instancetype)initWithURI: (OFURI *)URI mode: (OFString *)mode;
- (instancetype)initWithIRI: (OFIRI *)IRI mode: (OFString *)mode;
/**
* @brief Returns the next entry from the LHA archive or `nil` if all entries
* have been read.
*
* @note This is only available in read mode.
*
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* @throw OFInvalidFormatException The archive's format is invalid
* @throw OFUnsupportedVersionException The archive's format is of an
* unsupported version
* @throw OFTruncatedDataException The archive was truncated
*/
- (nullable OFLHAArchiveEntry *)nextEntry;
/**
* @brief Returns a stream for reading the current entry.
*
* @note This is only available in read mode.
*
* @note The returned stream conforms to @ref OFReadyForReadingObserving if the
* underlying stream does so, too.
*
* @return A stream for reading the current entry
*/
- (OFStream *)streamForReadingCurrentEntry;
/**
* @brief Returns a stream for writing the specified entry.
*
* @note This is only available in write and append mode.
*
* @note The uncompressed size, compressed size and CRC16 of the specified
* entry are ignored.
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* @param entry The entry for which a stream for writing should be returned
* @return A stream for writing the specified entry
*/
- (OFStream *)streamForWritingEntry: (OFLHAArchiveEntry *)entry;
/**
* @brief Closes the OFLHAArchive.
*
* @throw OFNotOpenException The archive is not open
*/
- (void)close;
@end
OF_ASSUME_NONNULL_END
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