Qore Programming Language Reference Manual 1.14.0
|
Functions | |
binary | Qore::bunzip2_to_binary (binary bin) |
Uncompresses the given data with the bzip2 algorithm and returns the uncompressed data as a binary object. More... | |
nothing | Qore::bunzip2_to_binary () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
string | Qore::bunzip2_to_string (binary bin, *string encoding) |
Uncompresses the given data with the bzip2 algorithm and returns the uncompressed data as a string. More... | |
nothing | Qore::bunzip2_to_string () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
binary | Qore::bzip2 (binary bin, softint level=BZ2_DEFAULT_COMPRESSION) |
Compresses the given data with the bzip2 algorithm and returns the compressed data as a binary. More... | |
binary | Qore::bzip2 (string str, softint level=BZ2_DEFAULT_COMPRESSION) |
Compresses the given data with the bzip2 algorithm and returns the compressed data as a binary. More... | |
nothing | Qore::bzip2 () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
binary | Qore::compress (string str, int level=Z_DEFAULT_COMPRESSION) |
Performs zlib-based "deflate" data compression (RFC 1951) and returns a binary object of the compressed data. More... | |
binary | Qore::compress (binary bin, int level=Z_DEFAULT_COMPRESSION) |
Performs zlib-based "deflate" data compression (RFC 1951) and returns a binary object of the compressed data. More... | |
nothing | Qore::compress () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
Transform | Qore::get_compressor (string alg, int level=COMPRESSION_LEVEL_DEFAULT) |
Returns a Transform object for compressing data using the given algorithm for use with TransformInputStream and TransformOutputStream. More... | |
Transform | Qore::get_decompressor (string alg) |
Returns a Transform object for decompressing data using the given algorithm for use with TransformInputStream and TransformOutputStream. More... | |
binary | Qore::gunzip_to_binary (binary bin) |
Performs zlib-based decompression of data compressed with the "gzip" algorithm (RFC 1952) and returns a binary object of the uncompressed data. More... | |
nothing | Qore::gunzip_to_binary () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
string | Qore::gunzip_to_string (binary bin, *string encoding) |
Performs zlib-based decompression of data compressed with the "gzip" algorithm (RFC 1952) and returns a string of the uncompressed datas. More... | |
nothing | Qore::gunzip_to_string () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
binary | Qore::gzip (string str, int level=Z_DEFAULT_COMPRESSION) |
Performs zlib-based "gzip" data compression (RFC 1952) and returns a binary object of the compressed data. More... | |
binary | Qore::gzip (binary bin, int level=Z_DEFAULT_COMPRESSION) |
Performs zlib-based "gzip" data compression (RFC 1952) and returns a binary object of the compressed data. More... | |
nothing | Qore::gzip () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
binary | Qore::uncompress_to_binary (binary bin) |
Performs zlib-based decompression of data compressed by the "deflate" algorithm (RFC 1951) and returns a binary object of the decompressed data. More... | |
nothing | Qore::uncompress_to_binary () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
string | Qore::uncompress_to_string (binary bin, *string encoding) |
Performs zlib-based decompression of data compressed by the "deflate" algorithm (RFC 1951) and returns a string of the decompressed data. More... | |
nothing | Qore::uncompress_to_string () |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments. More... | |
These functions work with compression and decompression
nothing Qore::bunzip2_to_binary | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Uncompresses the given data with the bzip2 algorithm and returns the uncompressed data as a binary object.
bin | the compressed data to decompress |
BZIP2-DECOMPRESS-ERROR | the bzip2 library returned an internal error during processing (possibly due to corrupt input data) |
nothing Qore::bunzip2_to_string | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Uncompresses the given data with the bzip2 algorithm and returns the uncompressed data as a string.
bin | the compressed data to decompress |
encoding | the character encoding tag for the string return value; if not present, the default character encoding is assumed. |
BZIP2-DECOMPRESS-ERROR | the bzip2 library returned an internal error during processing (possibly due to corrupt input data) |
nothing Qore::bzip2 | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
binary Qore::bzip2 | ( | binary | bin, |
softint | level = BZ2_DEFAULT_COMPRESSION |
||
) |
Compresses the given data with the bzip2 algorithm and returns the compressed data as a binary.
bin | the data to compress |
level | the compression level, must be a value between 1 and 9 inclusive, 1 = the least compression (and taking the least memory), 9 = the most compression (using the most memory). An invalid option passed to this argument will result in a BZLIB2-LEVEL-ERROR exception being raised. |
BZLIB2-LEVEL-ERROR | level must be between 1 - 9 |
BZIP2-COMPRESS-ERROR | the bzip2 library returned an error during processing |
binary Qore::bzip2 | ( | string | str, |
softint | level = BZ2_DEFAULT_COMPRESSION |
||
) |
Compresses the given data with the bzip2 algorithm and returns the compressed data as a binary.
Strings are compressed without the trailing null character
str | the data to compress |
level | the compression level, must be a value between 1 and 9 inclusive, 1 = the least compression (and taking the least memory), 9 = the most compression (using the most memory). An invalid option passed to this argument will result in a BZLIB2-LEVEL-ERROR exception being raised. |
BZLIB2-LEVEL-ERROR | level must be between 1 - 9 |
BZIP2-COMPRESS-ERROR | the bzip2 library returned an error during processing |
nothing Qore::compress | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
binary Qore::compress | ( | binary | bin, |
int | level = Z_DEFAULT_COMPRESSION |
||
) |
Performs zlib-based "deflate" data compression (RFC 1951) and returns a binary object of the compressed data.
Note that strings are compressed without the trailing null character.
bin | The binary object to compress |
level | Specifies the compression level; must be an integer between 1 and 9, 9 meaning the highest compression level. The default value Z_DEFAULT_COMPRESSION gives a tradeoff between speed and compression size |
ZLIB-LEVEL-ERROR | level must be between 1 - 9 or -1 |
ZLIB-ERROR | zlib returned an error while processing |
binary Qore::compress | ( | string | str, |
int | level = Z_DEFAULT_COMPRESSION |
||
) |
Performs zlib-based "deflate" data compression (RFC 1951) and returns a binary object of the compressed data.
Note that strings are compressed without the trailing null character.
str | The string to compress |
level | Specifies the compression level; must be an integer between 1 and 9, 9 meaning the highest compression level. The default value Z_DEFAULT_COMPRESSION gives a tradeoff between speed and compression size |
ZLIB-LEVEL-ERROR | level must be between 1 - 9 or -1 |
ZLIB-ERROR | zlib returned an error while processing |
Transform Qore::get_compressor | ( | string | alg, |
int | level = COMPRESSION_LEVEL_DEFAULT |
||
) |
Returns a Transform object for compressing data using the given algorithm for use with TransformInputStream and TransformOutputStream.
alg | the transformation algorithm; see Compression Stream Transformations for possible values |
level | compression level as defined by the algorithm or COMPRESSION_LEVEL_DEFAULT to use the default compression level |
Returns a Transform object for decompressing data using the given algorithm for use with TransformInputStream and TransformOutputStream.
alg | the transformation algorithm; see Compression Stream Transformations for possible values |
nothing Qore::gunzip_to_binary | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Performs zlib-based decompression of data compressed with the "gzip"
algorithm (RFC 1952) and returns a binary object of the uncompressed data.
bin | the compressed data to decompress |
ZLIB-ERROR | The zlib library returned an error during processing (possibly due to corrupt input data) |
nothing Qore::gunzip_to_string | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Performs zlib-based decompression of data compressed with the "gzip" algorithm (RFC 1952) and returns a string of the uncompressed datas.
bin | the compressed data to decompress |
encoding | the character encoding tag for the string return value; if not present, the default character encoding is assumed. |
ZLIB-ERROR | The zlib library returned an error during processing (possibly due to corrupt input data) |
nothing Qore::gzip | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
binary Qore::gzip | ( | binary | bin, |
int | level = Z_DEFAULT_COMPRESSION |
||
) |
Performs zlib-based "gzip" data compression (RFC 1952) and returns a binary object of the compressed data.
bin | the data to compress |
level | the compression level, must be a value between 1 and 9 inclusive, 1 = the least compression (and taking the least memory), 9 = the most compression (using the most memory). An invalid option passed to this argument will result in a ZLIB-LEVEL-ERROR exception being raised. |
ZLIB-LEVEL-ERROR | level must be between 1 - 9 or -1 |
ZLIB-ERROR | The zlib library returned an error during processing (should not normally happen during compression) |
binary Qore::gzip | ( | string | str, |
int | level = Z_DEFAULT_COMPRESSION |
||
) |
Performs zlib-based "gzip" data compression (RFC 1952) and returns a binary object of the compressed data.
Strings are compressed without the trailing null character
str | the data to compress |
level | the compression level, must be a value between 1 and 9 inclusive, 1 = the least compression (and taking the least memory), 9 = the most compression (using the most memory). An invalid option passed to this argument will result in a ZLIB-LEVEL-ERROR exception being raised. |
ZLIB-LEVEL-ERROR | level must be between 1 - 9 or -1 |
ZLIB-ERROR | The zlib library returned an error during processing (should not normally happen during compression) |
nothing Qore::uncompress_to_binary | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Performs zlib-based decompression of data compressed by the "deflate" algorithm (RFC 1951) and returns a binary object of the decompressed data.
bin | the data to decompress |
ZLIB-ERROR | The zlib library returned an error during processing (possibly due to corrupt input data) |
nothing Qore::uncompress_to_string | ( | ) |
This function variant does nothing at all; it is only included for backwards-compatibility with qore prior to version 0.8.0 for functions that would ignore type errors in arguments.
Performs zlib-based decompression of data compressed by the "deflate" algorithm (RFC 1951) and returns a string of the decompressed data.
bin | the compressed data to decompress |
encoding | the character encoding tag for the string return value; if not present, the default character encoding is assumed. |
ZLIB-ERROR | The zlib library returned an error during processing (possibly due to corrupt input data) |