package decompress

v1.0.0 2019-08-30 Paris (France)

** breaking changes **

decompress.1.0.0 is 3 times faster about decompression than before. A huge amount of work was done to improve performance and coverage.

The main reason to update the API is to fix a bad design decision regarding split compression and encoding. User is able to implement a new compression algorithm and use it.

Release comes with regressions:

• decompress only supports Bigarray now, not Bytes
• GZIP layer does not exist anymore
• state of RFC1951 encoder/decoder is not referentially transparent anymore

Of course, v1.0.0 comes with fixes and improvements:

• decompress is able to compress/uncompress Calgary corpus
• tests are improved and they include all coverage tests from zlib
• compression algorithm has a fuzzer
• encoder has a fuzzer
• performance about decoder is 3 times better than decompress.v0.9.0 and 3 times slower than zlib

decompress is split into 2 main modules:

• dd which implements RFC1951
• zz which implements ZLIB

API of them are pretty-close to what decompress.v0.9.0 does with some advantages on dd:

• User can use their own compression algorithm instead of Dd.L
• encoder exposes more granular control over what it emits (which block, when, where)
• Huffman tree generation is out of dd

As a response to #25, dd provides a higher level API resembling camlzip.

v0.9.0 2019-07-10 Paris (France)

• Add support of 4.07 and 4.08 in Travis (@XVilka, @dinosaure, #70, #71)
• Use mmap (@XVilka, @dinosaure, @hannesm, #68, #69, #71)
• Update documentation (@yurug, @dinosaure, #65, #66)
• Micro-optimization about specialization (@dinosaure, #64)
• Re-organize internals of decompress (@dinosaure, #63)
• GZIP support (@clecat, review by @dinosaure, @cfcs, @hannesm, #60)

• fix #58 (@dinosaure)

v0.8.1 2018-10-16 Paris (France)

• Dunify project (@dinosaure)
• breaking-change Unbox Bytes.t and Bigstring.t as I/O buffer (@dinosaure)
• Add foreign tests vectors (@cfcs, @dinosaure)
• Catch invalid distance (@XVilka, @dinosaure)
• Better check on dictionaries (@XVilka, @dinosaure)
• breaking-change Add [wbits] argument to check Window size on RFC1951 (@XVilka, @dinosaure)

v0.8 2018-07-09 Paris (France)

• Implementation of RFC1951 (task from @cfcs)

• breaking change New interface of decompress

  We wrap API in Zlib_{inflate/deflate} and add RFC1951_{inflate/deflate}.

• Move to jbuilder/dune (task from @samoht)
• Better check on zlib header

• Fixed infinite loop (task fron @cfcs)

  See 2e3af68, decompress has an infinite loop when the inflated dictionary does not provide any bindings (and length of opcode is <= 0). In this case, decompress expects an empty input and provide an empty output in any case.

• Use re.1.7.2 on tests
• Use camlzip.1.07 on tests

v0.7 2017-10-18 Paris (France)

• Fixed Inflate.write function
• Fixed internal state to stick in a internal final state
• Fixed compilation with js_of_ocaml (use trampoline function to avoid stack-overflow)
• Fixed clash of name about state variable in the Inflate module
• Add afl program
• Export Adler-32 modules
• Add -i and -o option in the dpipe binary to inform the size of the internal chunk
• Change the value of -mode in the dpipe binary

v0.6 2017-05-11 Cao Lãnh (Vietnam)

• Fixed bug #29
• Produce far pattern (Lz77 compression)
• Optimize memory consumption of the Inflate module
• Move repository from oklm-wsh to mirage
• Learn topkg release

v0.5 2017-02-17 Essaouira (Maroc)

• Stabilize the interface (@dbuenzli's interface)
• Merge optimization from @yallop
• Add sync_flush, partial_flush, full_flush (experimental)
• Move the build system to topkg