1IO::Uncompress::Unzip(3U)ser Contributed Perl DocumentatiIoOn::Uncompress::Unzip(3)
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6 IO::Uncompress::Unzip - Read zip files/buffers
7
9 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
10
11 my $status = unzip $input => $output [,OPTS]
12 or die "unzip failed: $UnzipError\n";
13
14 my $z = IO::Uncompress::Unzip->new( $input [OPTS] )
15 or die "unzip failed: $UnzipError\n";
16
17 $status = $z->read($buffer)
18 $status = $z->read($buffer, $length)
19 $status = $z->read($buffer, $length, $offset)
20 $line = $z->getline()
21 $char = $z->getc()
22 $char = $z->ungetc()
23 $char = $z->opened()
24
25 $status = $z->inflateSync()
26
27 $data = $z->trailingData()
28 $status = $z->nextStream()
29 $data = $z->getHeaderInfo()
30 $z->tell()
31 $z->seek($position, $whence)
32 $z->binmode()
33 $z->fileno()
34 $z->eof()
35 $z->close()
36
37 $UnzipError ;
38
39 # IO::File mode
40
41 <$z>
42 read($z, $buffer);
43 read($z, $buffer, $length);
44 read($z, $buffer, $length, $offset);
45 tell($z)
46 seek($z, $position, $whence)
47 binmode($z)
48 fileno($z)
49 eof($z)
50 close($z)
51
53 This module provides a Perl interface that allows the reading of zlib
54 files/buffers.
55
56 For writing zip files/buffers, see the companion module
57 IO::Compress::Zip.
58
59 The primary purpose of this module is to provide streaming read access
60 to zip files and buffers.
61
62 At present the following compression methods are supported by
63 IO::Uncompress::Unzip
64
65 Store (0)
66 Deflate (8)
67 Bzip2 (12)
68 To read Bzip2 content, the module "IO::Uncompress::Bunzip2" must
69 be installed.
70
71 Lzma (14)
72 To read LZMA content, the module "IO::Uncompress::UnLzma" must be
73 installed.
74
75 Xz (95)
76 To read Xz content, the module "IO::Uncompress::UnXz" must be
77 installed.
78
79 Zstandard (93)
80 To read Zstandard content, the module "IO::Uncompress::UnZstd"
81 must be installed.
82
84 A top-level function, "unzip", is provided to carry out "one-shot"
85 uncompression between buffers and/or files. For finer control over the
86 uncompression process, see the "OO Interface" section.
87
88 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
89
90 unzip $input_filename_or_reference => $output_filename_or_reference [,OPTS]
91 or die "unzip failed: $UnzipError\n";
92
93 The functional interface needs Perl5.005 or better.
94
95 unzip $input_filename_or_reference => $output_filename_or_reference [,
96 OPTS]
97 "unzip" expects at least two parameters, $input_filename_or_reference
98 and $output_filename_or_reference and zero or more optional parameters
99 (see "Optional Parameters")
100
101 The $input_filename_or_reference parameter
102
103 The parameter, $input_filename_or_reference, is used to define the
104 source of the compressed data.
105
106 It can take one of the following forms:
107
108 A filename
109 If the $input_filename_or_reference parameter is a simple scalar,
110 it is assumed to be a filename. This file will be opened for
111 reading and the input data will be read from it.
112
113 A filehandle
114 If the $input_filename_or_reference parameter is a filehandle, the
115 input data will be read from it. The string '-' can be used as an
116 alias for standard input.
117
118 A scalar reference
119 If $input_filename_or_reference is a scalar reference, the input
120 data will be read from $$input_filename_or_reference.
121
122 An array reference
123 If $input_filename_or_reference is an array reference, each
124 element in the array must be a filename.
125
126 The input data will be read from each file in turn.
127
128 The complete array will be walked to ensure that it only contains
129 valid filenames before any data is uncompressed.
130
131 An Input FileGlob string
132 If $input_filename_or_reference is a string that is delimited by
133 the characters "<" and ">" "unzip" will assume that it is an input
134 fileglob string. The input is the list of files that match the
135 fileglob.
136
137 See File::GlobMapper for more details.
138
139 If the $input_filename_or_reference parameter is any other type,
140 "undef" will be returned.
141
142 The $output_filename_or_reference parameter
143
144 The parameter $output_filename_or_reference is used to control the
145 destination of the uncompressed data. This parameter can take one of
146 these forms.
147
148 A filename
149 If the $output_filename_or_reference parameter is a simple scalar,
150 it is assumed to be a filename. This file will be opened for
151 writing and the uncompressed data will be written to it.
152
153 A filehandle
154 If the $output_filename_or_reference parameter is a filehandle,
155 the uncompressed data will be written to it. The string '-' can
156 be used as an alias for standard output.
157
158 A scalar reference
159 If $output_filename_or_reference is a scalar reference, the
160 uncompressed data will be stored in
161 $$output_filename_or_reference.
162
163 An Array Reference
164 If $output_filename_or_reference is an array reference, the
165 uncompressed data will be pushed onto the array.
166
167 An Output FileGlob
168 If $output_filename_or_reference is a string that is delimited by
169 the characters "<" and ">" "unzip" will assume that it is an
170 output fileglob string. The output is the list of files that match
171 the fileglob.
172
173 When $output_filename_or_reference is an fileglob string,
174 $input_filename_or_reference must also be a fileglob string.
175 Anything else is an error.
176
177 See File::GlobMapper for more details.
178
179 If the $output_filename_or_reference parameter is any other type,
180 "undef" will be returned.
181
182 Notes
183 When $input_filename_or_reference maps to multiple compressed
184 files/buffers and $output_filename_or_reference is a single
185 file/buffer, after uncompression $output_filename_or_reference will
186 contain a concatenation of all the uncompressed data from each of the
187 input files/buffers.
188
189 Optional Parameters
190 The optional parameters for the one-shot function "unzip" are (for the
191 most part) identical to those used with the OO interface defined in the
192 "Constructor Options" section. The exceptions are listed below
193
194 "AutoClose => 0|1"
195 This option applies to any input or output data streams to "unzip"
196 that are filehandles.
197
198 If "AutoClose" is specified, and the value is true, it will result
199 in all input and/or output filehandles being closed once "unzip"
200 has completed.
201
202 This parameter defaults to 0.
203
204 "BinModeOut => 0|1"
205 This option is now a no-op. All files will be written in binmode.
206
207 "Append => 0|1"
208 The behaviour of this option is dependent on the type of output
209 data stream.
210
211 • A Buffer
212
213 If "Append" is enabled, all uncompressed data will be append
214 to the end of the output buffer. Otherwise the output buffer
215 will be cleared before any uncompressed data is written to
216 it.
217
218 • A Filename
219
220 If "Append" is enabled, the file will be opened in append
221 mode. Otherwise the contents of the file, if any, will be
222 truncated before any uncompressed data is written to it.
223
224 • A Filehandle
225
226 If "Append" is enabled, the filehandle will be positioned to
227 the end of the file via a call to "seek" before any
228 uncompressed data is written to it. Otherwise the file
229 pointer will not be moved.
230
231 When "Append" is specified, and set to true, it will append all
232 uncompressed data to the output data stream.
233
234 So when the output is a filehandle it will carry out a seek to the
235 eof before writing any uncompressed data. If the output is a
236 filename, it will be opened for appending. If the output is a
237 buffer, all uncompressed data will be appended to the existing
238 buffer.
239
240 Conversely when "Append" is not specified, or it is present and is
241 set to false, it will operate as follows.
242
243 When the output is a filename, it will truncate the contents of
244 the file before writing any uncompressed data. If the output is a
245 filehandle its position will not be changed. If the output is a
246 buffer, it will be wiped before any uncompressed data is output.
247
248 Defaults to 0.
249
250 "MultiStream => 0|1"
251 If the input file/buffer contains multiple compressed data
252 streams, this option will uncompress the whole lot as a single
253 data stream.
254
255 Defaults to 0.
256
257 "TrailingData => $scalar"
258 Returns the data, if any, that is present immediately after the
259 compressed data stream once uncompression is complete.
260
261 This option can be used when there is useful information
262 immediately following the compressed data stream, and you don't
263 know the length of the compressed data stream.
264
265 If the input is a buffer, "trailingData" will return everything
266 from the end of the compressed data stream to the end of the
267 buffer.
268
269 If the input is a filehandle, "trailingData" will return the data
270 that is left in the filehandle input buffer once the end of the
271 compressed data stream has been reached. You can then use the
272 filehandle to read the rest of the input file.
273
274 Don't bother using "trailingData" if the input is a filename.
275
276 If you know the length of the compressed data stream before you
277 start uncompressing, you can avoid having to use "trailingData" by
278 setting the "InputLength" option.
279
280 OneShot Examples
281 Say you have a zip file, "file1.zip", that only contains a single
282 member, you can read it and write the uncompressed data to the file
283 "file1.txt" like this.
284
285 use strict ;
286 use warnings ;
287 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
288
289 my $input = "file1.zip";
290 my $output = "file1.txt";
291 unzip $input => $output
292 or die "unzip failed: $UnzipError\n";
293
294 If you have a zip file that contains multiple members and want to read
295 a specific member from the file, say "data1", use the "Name" option
296
297 use strict ;
298 use warnings ;
299 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
300
301 my $input = "file1.zip";
302 my $output = "file1.txt";
303 unzip $input => $output, Name => "data1"
304 or die "unzip failed: $UnzipError\n";
305
306 Alternatively, if you want to read the "data1" member into memory, use
307 a scalar reference for the "output" parameter.
308
309 use strict ;
310 use warnings ;
311 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
312
313 my $input = "file1.zip";
314 my $output ;
315 unzip $input => \$output, Name => "data1"
316 or die "unzip failed: $UnzipError\n";
317 # $output now contains the uncompressed data
318
319 To read from an existing Perl filehandle, $input, and write the
320 uncompressed data to a buffer, $buffer.
321
322 use strict ;
323 use warnings ;
324 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
325 use IO::File ;
326
327 my $input = IO::File->new( "<file1.zip" )
328 or die "Cannot open 'file1.zip': $!\n" ;
329 my $buffer ;
330 unzip $input => \$buffer
331 or die "unzip failed: $UnzipError\n";
332
334 Constructor
335 The format of the constructor for IO::Uncompress::Unzip is shown below
336
337 my $z = IO::Uncompress::Unzip->new( $input [OPTS] )
338 or die "IO::Uncompress::Unzip failed: $UnzipError\n";
339
340 The constructor takes one mandatory parameter, $input, defined below,
341 and zero or more "OPTS", defined in "Constructor Options".
342
343 Returns an "IO::Uncompress::Unzip" object on success and undef on
344 failure. The variable $UnzipError will contain an error message on
345 failure.
346
347 If you are running Perl 5.005 or better the object, $z, returned from
348 IO::Uncompress::Unzip can be used exactly like an IO::File filehandle.
349 This means that all normal input file operations can be carried out
350 with $z. For example, to read a line from a compressed file/buffer you
351 can use either of these forms
352
353 $line = $z->getline();
354 $line = <$z>;
355
356 Below is a simple exaple of using the OO interface to read the
357 compressed file "myfile.zip" and write its contents to stdout.
358
359 my $filename = "myfile.zip";
360 my $z = IO::Uncompress::Unzip->new($filename)
361 or die "IO::Uncompress::Unzip failed: $UnzipError\n";
362
363 while (<$z>) {
364 print $_;
365 }
366 $z->close();
367
368 See "EXAMPLES" for further examples
369
370 The mandatory parameter $input is used to determine the source of the
371 compressed data. This parameter can take one of three forms.
372
373 A filename
374 If the $input parameter is a scalar, it is assumed to be a
375 filename. This file will be opened for reading and the compressed
376 data will be read from it.
377
378 A filehandle
379 If the $input parameter is a filehandle, the compressed data will
380 be read from it. The string '-' can be used as an alias for
381 standard input.
382
383 A scalar reference
384 If $input is a scalar reference, the compressed data will be read
385 from $$input.
386
387 Constructor Options
388 The option names defined below are case insensitive and can be
389 optionally prefixed by a '-'. So all of the following are valid
390
391 -AutoClose
392 -autoclose
393 AUTOCLOSE
394 autoclose
395
396 OPTS is a combination of the following options:
397
398 "Name => "membername""
399 Open "membername" from the zip file for reading.
400
401 "Efs => 0| 1"
402 When this option is set to true AND the zip archive being read has
403 the "Language Encoding Flag" (EFS) set, the member name is assumed
404 to be encoded in UTF-8.
405
406 If the member name in the zip archive is not valid UTF-8 when this
407 optionn is true, the script will die with an error message.
408
409 Note that this option only works with Perl 5.8.4 or better.
410
411 This option defaults to false.
412
413 "AutoClose => 0|1"
414 This option is only valid when the $input parameter is a
415 filehandle. If specified, and the value is true, it will result in
416 the file being closed once either the "close" method is called or
417 the IO::Uncompress::Unzip object is destroyed.
418
419 This parameter defaults to 0.
420
421 "MultiStream => 0|1"
422 Treats the complete zip file/buffer as a single compressed data
423 stream. When reading in multi-stream mode each member of the zip
424 file/buffer will be uncompressed in turn until the end of the
425 file/buffer is encountered.
426
427 This parameter defaults to 0.
428
429 "Prime => $string"
430 This option will uncompress the contents of $string before
431 processing the input file/buffer.
432
433 This option can be useful when the compressed data is embedded in
434 another file/data structure and it is not possible to work out
435 where the compressed data begins without having to read the first
436 few bytes. If this is the case, the uncompression can be primed
437 with these bytes using this option.
438
439 "Transparent => 0|1"
440 If this option is set and the input file/buffer is not compressed
441 data, the module will allow reading of it anyway.
442
443 In addition, if the input file/buffer does contain compressed data
444 and there is non-compressed data immediately following it, setting
445 this option will make this module treat the whole file/buffer as a
446 single data stream.
447
448 This option defaults to 1.
449
450 "BlockSize => $num"
451 When reading the compressed input data, IO::Uncompress::Unzip will
452 read it in blocks of $num bytes.
453
454 This option defaults to 4096.
455
456 "InputLength => $size"
457 When present this option will limit the number of compressed bytes
458 read from the input file/buffer to $size. This option can be used
459 in the situation where there is useful data directly after the
460 compressed data stream and you know beforehand the exact length of
461 the compressed data stream.
462
463 This option is mostly used when reading from a filehandle, in
464 which case the file pointer will be left pointing to the first
465 byte directly after the compressed data stream.
466
467 This option defaults to off.
468
469 "Append => 0|1"
470 This option controls what the "read" method does with uncompressed
471 data.
472
473 If set to 1, all uncompressed data will be appended to the output
474 parameter of the "read" method.
475
476 If set to 0, the contents of the output parameter of the "read"
477 method will be overwritten by the uncompressed data.
478
479 Defaults to 0.
480
481 "Strict => 0|1"
482 This option controls whether the extra checks defined below are
483 used when carrying out the decompression. When Strict is on, the
484 extra tests are carried out, when Strict is off they are not.
485
486 The default for this option is off.
487
489 read
490 Usage is
491
492 $status = $z->read($buffer)
493
494 Reads a block of compressed data (the size of the compressed block is
495 determined by the "Buffer" option in the constructor), uncompresses it
496 and writes any uncompressed data into $buffer. If the "Append"
497 parameter is set in the constructor, the uncompressed data will be
498 appended to the $buffer parameter. Otherwise $buffer will be
499 overwritten.
500
501 Returns the number of uncompressed bytes written to $buffer, zero if
502 eof or a negative number on error.
503
504 read
505 Usage is
506
507 $status = $z->read($buffer, $length)
508 $status = $z->read($buffer, $length, $offset)
509
510 $status = read($z, $buffer, $length)
511 $status = read($z, $buffer, $length, $offset)
512
513 Attempt to read $length bytes of uncompressed data into $buffer.
514
515 The main difference between this form of the "read" method and the
516 previous one, is that this one will attempt to return exactly $length
517 bytes. The only circumstances that this function will not is if end-of-
518 file or an IO error is encountered.
519
520 Returns the number of uncompressed bytes written to $buffer, zero if
521 eof or a negative number on error.
522
523 getline
524 Usage is
525
526 $line = $z->getline()
527 $line = <$z>
528
529 Reads a single line.
530
531 This method fully supports the use of the variable $/ (or
532 $INPUT_RECORD_SEPARATOR or $RS when "English" is in use) to determine
533 what constitutes an end of line. Paragraph mode, record mode and file
534 slurp mode are all supported.
535
536 getc
537 Usage is
538
539 $char = $z->getc()
540
541 Read a single character.
542
543 ungetc
544 Usage is
545
546 $char = $z->ungetc($string)
547
548 inflateSync
549 Usage is
550
551 $status = $z->inflateSync()
552
553 TODO
554
555 getHeaderInfo
556 Usage is
557
558 $hdr = $z->getHeaderInfo();
559 @hdrs = $z->getHeaderInfo();
560
561 This method returns either a hash reference (in scalar context) or a
562 list or hash references (in array context) that contains information
563 about each of the header fields in the compressed data stream(s).
564
565 tell
566 Usage is
567
568 $z->tell()
569 tell $z
570
571 Returns the uncompressed file offset.
572
573 eof
574 Usage is
575
576 $z->eof();
577 eof($z);
578
579 Returns true if the end of the compressed input stream has been
580 reached.
581
582 seek
583 $z->seek($position, $whence);
584 seek($z, $position, $whence);
585
586 Provides a sub-set of the "seek" functionality, with the restriction
587 that it is only legal to seek forward in the input file/buffer. It is
588 a fatal error to attempt to seek backward.
589
590 Note that the implementation of "seek" in this module does not provide
591 true random access to a compressed file/buffer. It works by
592 uncompressing data from the current offset in the file/buffer until it
593 reaches the uncompressed offset specified in the parameters to "seek".
594 For very small files this may be acceptable behaviour. For large files
595 it may cause an unacceptable delay.
596
597 The $whence parameter takes one the usual values, namely SEEK_SET,
598 SEEK_CUR or SEEK_END.
599
600 Returns 1 on success, 0 on failure.
601
602 binmode
603 Usage is
604
605 $z->binmode
606 binmode $z ;
607
608 This is a noop provided for completeness.
609
610 opened
611 $z->opened()
612
613 Returns true if the object currently refers to a opened file/buffer.
614
615 autoflush
616 my $prev = $z->autoflush()
617 my $prev = $z->autoflush(EXPR)
618
619 If the $z object is associated with a file or a filehandle, this method
620 returns the current autoflush setting for the underlying filehandle. If
621 "EXPR" is present, and is non-zero, it will enable flushing after every
622 write/print operation.
623
624 If $z is associated with a buffer, this method has no effect and always
625 returns "undef".
626
627 Note that the special variable $| cannot be used to set or retrieve the
628 autoflush setting.
629
630 input_line_number
631 $z->input_line_number()
632 $z->input_line_number(EXPR)
633
634 Returns the current uncompressed line number. If "EXPR" is present it
635 has the effect of setting the line number. Note that setting the line
636 number does not change the current position within the file/buffer
637 being read.
638
639 The contents of $/ are used to determine what constitutes a line
640 terminator.
641
642 fileno
643 $z->fileno()
644 fileno($z)
645
646 If the $z object is associated with a file or a filehandle, "fileno"
647 will return the underlying file descriptor. Once the "close" method is
648 called "fileno" will return "undef".
649
650 If the $z object is associated with a buffer, this method will return
651 "undef".
652
653 close
654 $z->close() ;
655 close $z ;
656
657 Closes the output file/buffer.
658
659 For most versions of Perl this method will be automatically invoked if
660 the IO::Uncompress::Unzip object is destroyed (either explicitly or by
661 the variable with the reference to the object going out of scope). The
662 exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In these
663 cases, the "close" method will be called automatically, but not until
664 global destruction of all live objects when the program is terminating.
665
666 Therefore, if you want your scripts to be able to run on all versions
667 of Perl, you should call "close" explicitly and not rely on automatic
668 closing.
669
670 Returns true on success, otherwise 0.
671
672 If the "AutoClose" option has been enabled when the
673 IO::Uncompress::Unzip object was created, and the object is associated
674 with a file, the underlying file will also be closed.
675
676 nextStream
677 Usage is
678
679 my $status = $z->nextStream();
680
681 Skips to the next compressed data stream in the input file/buffer. If a
682 new compressed data stream is found, the eof marker will be cleared and
683 $. will be reset to 0.
684
685 If trailing data is present immediately after the zip archive and the
686 "Transparent" option is enabled, this method will consider that
687 trailing data to be another member of the zip archive.
688
689 Returns 1 if a new stream was found, 0 if none was found, and -1 if an
690 error was encountered.
691
692 trailingData
693 Usage is
694
695 my $data = $z->trailingData();
696
697 Returns the data, if any, that is present immediately after the
698 compressed data stream once uncompression is complete. It only makes
699 sense to call this method once the end of the compressed data stream
700 has been encountered.
701
702 This option can be used when there is useful information immediately
703 following the compressed data stream, and you don't know the length of
704 the compressed data stream.
705
706 If the input is a buffer, "trailingData" will return everything from
707 the end of the compressed data stream to the end of the buffer.
708
709 If the input is a filehandle, "trailingData" will return the data that
710 is left in the filehandle input buffer once the end of the compressed
711 data stream has been reached. You can then use the filehandle to read
712 the rest of the input file.
713
714 Don't bother using "trailingData" if the input is a filename.
715
716 If you know the length of the compressed data stream before you start
717 uncompressing, you can avoid having to use "trailingData" by setting
718 the "InputLength" option in the constructor.
719
721 No symbolic constants are required by IO::Uncompress::Unzip at present.
722
723 :all Imports "unzip" and $UnzipError. Same as doing this
724
725 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
726
728 Simple Read
729 Say you have a zip file, "file1.zip", that only contains a single
730 member, you can read it and write the uncompressed data to the file
731 "file1.txt" like this.
732
733 use strict ;
734 use warnings ;
735 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
736
737 my $filename = "file1.zip";
738 my $z = IO::Uncompress::Unzip->new($filename)
739 or die "IO::Uncompress::Unzip failed: $UnzipError\n";
740 open my $out, ">", "file1.txt";
741
742 while (<$z>) {
743 print $out $_;
744 }
745 $z->close();
746
747 If you have a zip file that contains multiple members and want to read
748 a specific member from the file, say "data1", use the "Name" option
749 when constructing the
750
751 use strict ;
752 use warnings ;
753 use IO::Uncompress::Unzip qw(unzip $UnzipError) ;
754
755 my $filename = "file1.zip";
756 my $z = IO::Uncompress::Unzip->new($filename, Name => "data1")
757 or die "IO::Uncompress::Unzip failed: $UnzipError\n";
758
759 Walking through a zip file
760 The code below can be used to traverse a zip file, one compressed data
761 stream at a time.
762
763 use IO::Uncompress::Unzip qw($UnzipError);
764
765 my $zipfile = "somefile.zip";
766 my $u = IO::Uncompress::Unzip->new( $zipfile )
767 or die "Cannot open $zipfile: $UnzipError";
768
769 my $status;
770 for ($status = 1; $status > 0; $status = $u->nextStream())
771 {
772
773 my $name = $u->getHeaderInfo()->{Name};
774 warn "Processing member $name\n" ;
775
776 my $buff;
777 while (($status = $u->read($buff)) > 0) {
778 # Do something here
779 }
780
781 last if $status < 0;
782 }
783
784 die "Error processing $zipfile: $!\n"
785 if $status < 0 ;
786
787 Each individual compressed data stream is read until the logical end-
788 of-file is reached. Then "nextStream" is called. This will skip to the
789 start of the next compressed data stream and clear the end-of-file
790 flag.
791
792 It is also worth noting that "nextStream" can be called at any time --
793 you don't have to wait until you have exhausted a compressed data
794 stream before skipping to the next one.
795
796 Unzipping a complete zip file to disk
797 Daniel S. Sterling has written a script that uses
798 "IO::Uncompress::UnZip" to read a zip file and unzip its contents to
799 disk.
800
801 The script is available from <https://gist.github.com/eqhmcow/5389877>
802
803 Working with Net::FTP
804 See IO::Compress::FAQ
805
807 General feedback/questions/bug reports should be sent to
808 <https://github.com/pmqs/IO-Compress/issues> (preferred) or
809 <https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress>.
810
812 Compress::Zlib, IO::Compress::Gzip, IO::Uncompress::Gunzip,
813 IO::Compress::Deflate, IO::Uncompress::Inflate,
814 IO::Compress::RawDeflate, IO::Uncompress::RawInflate,
815 IO::Compress::Bzip2, IO::Uncompress::Bunzip2, IO::Compress::Lzma,
816 IO::Uncompress::UnLzma, IO::Compress::Xz, IO::Uncompress::UnXz,
817 IO::Compress::Lzip, IO::Uncompress::UnLzip, IO::Compress::Lzop,
818 IO::Uncompress::UnLzop, IO::Compress::Lzf, IO::Uncompress::UnLzf,
819 IO::Compress::Zstd, IO::Uncompress::UnZstd, IO::Uncompress::AnyInflate,
820 IO::Uncompress::AnyUncompress
821
822 IO::Compress::FAQ
823
824 File::GlobMapper, Archive::Zip, Archive::Tar, IO::Zlib
825
826 For RFC 1950, 1951 and 1952 see
827 <https://datatracker.ietf.org/doc/html/rfc1950>,
828 <https://datatracker.ietf.org/doc/html/rfc1951> and
829 <https://datatracker.ietf.org/doc/html/rfc1952>
830
831 The zlib compression library was written by Jean-loup Gailly
832 "gzip@prep.ai.mit.edu" and Mark Adler "madler@alumni.caltech.edu".
833
834 The primary site for the zlib compression library is
835 <http://www.zlib.org>.
836
837 The primary site for the zlib-ng compression library is
838 <https://github.com/zlib-ng/zlib-ng>.
839
840 The primary site for gzip is <http://www.gzip.org>.
841
843 This module was written by Paul Marquess, "pmqs@cpan.org".
844
846 See the Changes file.
847
849 Copyright (c) 2005-2023 Paul Marquess. All rights reserved.
850
851 This program is free software; you can redistribute it and/or modify it
852 under the same terms as Perl itself.
853
854
855
856perl v5.38.0 2023-07-26 IO::Uncompress::Unzip(3)