The BitInputArchive class, given a handler object, allows reading/extracting the content of archives. More...

#include <bit7z/bitinputarchive.hpp>

Inheritance diagram for BitInputArchive:

Classes
class	ConstIterator
	An iterator for the elements contained in an archive. More...

Public Member Functions
	BitInputArchive (const BitAbstractArchiveHandler &handler, const fs::path &arcPath)
	Constructs a BitInputArchive object, opening the input file archive.

	BitInputArchive (const BitAbstractArchiveHandler &handler, const std::vector< byte_t > &inBuffer)
	Constructs a BitInputArchive object, opening the archive given in the input buffer.

	BitInputArchive (const BitAbstractArchiveHandler &handler, const tstring &inFile)
	Constructs a BitInputArchive object, opening the input file archive.

	BitInputArchive (const BitAbstractArchiveHandler &handler, std::istream &inStream)
	Constructs a BitInputArchive object, opening the archive by reading the given input stream.

auto	archivePath () const noexcept -> const tstring &

auto	archiveProperty (BitProperty property) const -> BitPropVariant
	Gets the specified archive property.

auto	begin () const noexcept -> BitInputArchive::ConstIterator

auto	cbegin () const noexcept -> BitInputArchive::ConstIterator

auto	cend () const noexcept -> BitInputArchive::ConstIterator

auto	contains (const tstring &path) const noexcept -> bool
	Find if there is an item in the archive that has the given path.

auto	detectedFormat () const noexcept -> const BitInFormat &

auto	end () const noexcept -> BitInputArchive::ConstIterator

void	extractTo (byte_t *buffer, std::size_t size, uint32_t index=0) const
	Extracts a file to the pre-allocated output buffer.

template<std::size_t N>
void	extractTo (byte_t(&buffer)[N], uint32_t index=0) const
	Extracts a file to the pre-allocated output buffer.

void	extractTo (const tstring &outDir, const std::vector< uint32_t > &indices={}) const
	Extracts the specified items to the chosen directory.

template<std::size_t N>
void	extractTo (std::array< byte_t, N > &buffer, uint32_t index=0) const
	Extracts a file to the pre-allocated output buffer.

void	extractTo (std::map< tstring, std::vector< byte_t > > &outMap) const
	Extracts the content of the archive to a map of memory buffers, where the keys are the paths of the files (inside the archive), and the values are their decompressed contents.

void	extractTo (std::ostream &outStream, uint32_t index=0) const
	Extracts a file to the output stream.

void	extractTo (std::vector< byte_t > &outBuffer, uint32_t index=0) const
	Extracts a file to the output buffer.

auto	find (const tstring &path) const noexcept -> BitInputArchive::ConstIterator
	Find an item in the archive that has the given path.

auto	handler () const noexcept -> const BitAbstractArchiveHandler &

auto	isItemEncrypted (uint32_t index) const -> bool

auto	isItemFolder (uint32_t index) const -> bool

auto	itemAt (uint32_t index) const -> BitArchiveItemOffset
	Retrieve the item at the given index.

auto	itemProperty (uint32_t index, BitProperty property) const -> BitPropVariant
	Gets the specified property of an item in the archive.

auto	itemsCount () const -> uint32_t

void	test () const
	Tests the archive without extracting its content.

void	testItem (uint32_t index) const
	Tests the item at the given index inside the archive without extracting it.

Detailed Description

The BitInputArchive class, given a handler object, allows reading/extracting the content of archives.

Constructor & Destructor Documentation

◆ BitInputArchive() [1/4]

BitInputArchive	(	const BitAbstractArchiveHandler &	handler,
		const tstring &	inFile
	)

Constructs a BitInputArchive object, opening the input file archive.

Parameters

handler	the reference to the BitAbstractArchiveHandler object containing all the settings to be used for reading the input archive
inFile	the path to the input archive file

◆ BitInputArchive() [2/4]

BitInputArchive	(	const BitAbstractArchiveHandler &	handler,
		const fs::path &	arcPath
	)

Constructs a BitInputArchive object, opening the input file archive.

Parameters

handler	the reference to the BitAbstractArchiveHandler object containing all the settings to be used for reading the input archive
arcPath	the path to the input archive file

◆ BitInputArchive() [3/4]

BitInputArchive	(	const BitAbstractArchiveHandler &	handler,
		const std::vector< byte_t > &	inBuffer
	)

Constructs a BitInputArchive object, opening the archive given in the input buffer.

Parameters

handler	the reference to the BitAbstractArchiveHandler object containing all the settings to be used for reading the input archive
inBuffer	the buffer containing the input archive

◆ BitInputArchive() [4/4]

BitInputArchive	(	const BitAbstractArchiveHandler &	handler,
		std::istream &	inStream
	)

Constructs a BitInputArchive object, opening the archive by reading the given input stream.

Parameters

handler	the reference to the BitAbstractArchiveHandler object containing all the settings to be used for reading the input archive
inStream	the standard input stream of the input archive

Member Function Documentation

◆ archivePath()

auto archivePath ( ) const -> const tstring &

noexcept

Returns: the path to the archive (the empty string for buffer/stream archives).

◆ archiveProperty()

auto archiveProperty ( BitProperty property ) const -> BitPropVariant

Gets the specified archive property.

Parameters

property the property to be retrieved.

Returns: the current value of the archive property or an empty BitPropVariant if no value is specified.

◆ begin()

auto begin ( ) const -> BitInputArchive::ConstIterator

noexcept

Returns: an iterator to the first element of the archive; if the archive is empty, the returned iterator will be equal to the end() iterator.

◆ cbegin()

auto cbegin ( ) const -> BitInputArchive::ConstIterator

noexcept

Returns: an iterator to the first element of the archive; if the archive is empty, the returned iterator will be equal to the end() iterator.

◆ cend()

auto cend ( ) const -> BitInputArchive::ConstIterator

noexcept

Returns: an iterator to the element following the last element of the archive; this element acts as a placeholder: attempting to access it results in undefined behavior.

◆ contains()

auto contains ( const tstring & path ) const -> bool

noexcept

Find if there is an item in the archive that has the given path.

Parameters

path	the path to be searched in the archive.

Returns: true if and only if an item with the given path exists in the archive.

◆ detectedFormat()

auto detectedFormat ( ) const -> const BitInFormat &

noexcept

Returns: the detected format of the file.

◆ end()

auto end ( ) const -> BitInputArchive::ConstIterator

noexcept

Returns: an iterator to the element following the last element of the archive; this element acts as a placeholder: attempting to access it results in undefined behavior.

◆ extractTo() [1/7]

void extractTo	(	byte_t *	buffer,
		std::size_t	size,
		uint32_t	index = `0`
	)		const

Extracts a file to the pre-allocated output buffer.

Parameters

buffer	the pre-allocated output buffer.
size	the size of the output buffer (it must be equal to the unpacked size of the item to be extracted).
index	the index of the file to be extracted.

◆ extractTo() [2/7]

template<std::size_t N>

void extractTo	(	byte_t(&)	buffer[N],
		uint32_t	index = `0`
	)		const

inline

Extracts a file to the pre-allocated output buffer.

Template Parameters

N	the size of the output buffer (it must be equal to the unpacked size of the item to be extracted).

Parameters

buffer	the pre-allocated output buffer.
index	the index of the file to be extracted.

◆ extractTo() [3/7]

void extractTo	(	const tstring &	outDir,
		const std::vector< uint32_t > &	indices = `{}`
	)		const

Extracts the specified items to the chosen directory.

Parameters

outDir	the output directory where the extracted files will be put.
indices	the array of indices of the files in the archive that must be extracted.

◆ extractTo() [4/7]

template<std::size_t N>

void extractTo	(	std::array< byte_t, N > &	buffer,
		uint32_t	index = `0`
	)		const

inline

Extracts a file to the pre-allocated output buffer.

Template Parameters

N	the size of the output buffer (it must be equal to the unpacked size of the item to be extracted).

Parameters

buffer	the pre-allocated output buffer.
index	the index of the file to be extracted.

◆ extractTo() [5/7]

void extractTo ( std::map< tstring, std::vector< byte_t > > & outMap ) const

Extracts the content of the archive to a map of memory buffers, where the keys are the paths of the files (inside the archive), and the values are their decompressed contents.

Parameters

outMap the output map.

◆ extractTo() [6/7]

void extractTo	(	std::ostream &	outStream,
		uint32_t	index = `0`
	)		const

Extracts a file to the output stream.

Parameters

outStream	the (binary) stream where the content of the archive will be put.
index	the index of the file to be extracted.

◆ extractTo() [7/7]

void extractTo	(	std::vector< byte_t > &	outBuffer,
		uint32_t	index = `0`
	)		const

Extracts a file to the output buffer.

Parameters

outBuffer	the output buffer where the content of the archive will be put.
index	the index of the file to be extracted.

◆ find()

auto find ( const tstring & path ) const -> BitInputArchive::ConstIterator

noexcept

Find an item in the archive that has the given path.

Parameters

path	the path to be searched in the archive.

Returns: an iterator to the item with the given path, or an iterator equal to the end() iterator if no item is found.

◆ handler()

auto handler ( ) const -> const BitAbstractArchiveHandler &

noexcept

Returns: the BitAbstractArchiveHandler object containing the settings for reading the archive.

◆ isItemEncrypted()

auto isItemEncrypted ( uint32_t index ) const -> bool

Parameters

index the index of an item in the archive.

Returns: true if and only if the item at the given index is encrypted.

◆ isItemFolder()

auto isItemFolder ( uint32_t index ) const -> bool

Parameters

index the index of an item in the archive.

Returns: true if and only if the item at the given index is a folder.

◆ itemAt()

auto itemAt ( uint32_t index ) const -> BitArchiveItemOffset

Retrieve the item at the given index.

Parameters

index the index of the item to be retrieved.

Returns: the item at the given index within the archive.

◆ itemProperty()

auto itemProperty	(	uint32_t	index,
		BitProperty	property
	)		const -> BitPropVariant

Gets the specified property of an item in the archive.

Parameters

index	the index (in the archive) of the item.
property	the property to be retrieved.

Returns: the current value of the item property or an empty BitPropVariant if the item has no value for the property.

◆ itemsCount()

auto itemsCount ( ) const -> uint32_t

Returns: the number of items contained in the archive.

◆ test()

void test ( ) const

Tests the archive without extracting its content.

If the archive is not valid, a BitException is thrown!

◆ testItem()

void testItem ( uint32_t index ) const

Tests the item at the given index inside the archive without extracting it.

If the archive is not valid, or there's no item at the given index, a BitException is thrown!

Parameters

index the index of the file to be tested.

The documentation for this class was generated from the following file:

include/bit7z/bitinputarchive.hpp

Classes

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ BitInputArchive() [1/4]

◆ BitInputArchive() [2/4]

◆ BitInputArchive() [3/4]

◆ BitInputArchive() [4/4]

Member Function Documentation

◆ archivePath()

◆ archiveProperty()

◆ begin()

◆ cbegin()

◆ cend()

◆ contains()

◆ detectedFormat()

◆ end()

◆ extractTo() [1/7]

◆ extractTo() [2/7]

◆ extractTo() [3/7]

◆ extractTo() [4/7]

◆ extractTo() [5/7]

◆ extractTo() [6/7]

◆ extractTo() [7/7]

◆ find()

◆ handler()

◆ isItemEncrypted()

◆ isItemFolder()

◆ itemAt()

◆ itemProperty()

◆ itemsCount()

◆ test()

◆ testItem()