Commit Graph

11 Commits

Author SHA1 Message Date
Manu Linares
eae7d0c4a1 stdlib: std::compression::zip and std::compression::deflate (#2930)
* stdlib: implement `std::compression::zip` and `std::compression::deflate`

- C3 implementation of DEFLATE (RFC 1951) and ZIP archive handling.
- Support for reading and writing archives using STORE and DEFLATE
methods.
- Decompression supports both fixed and dynamic Huffman blocks.
- Compression using greedy LZ77 matching.
- Zero dependencies on libc.
- Stream-based entry reading and writing.
- Full unit test coverage.

NOTE: This is an initial implementation. Future improvements could be:

- Optimization of the LZ77 matching (lazy matching).
- Support for dynamic Huffman blocks in compression.
- ZIP64 support for large files/archives.
- Support for encryption and additional compression methods.

* optimizations+refactoring

deflate:
- replace linear search with hash-based match finding.
- implement support for dynamic Huffman blocks using the Package-Merge
algorithm.
- add streaming decompression.
- add buffered StreamBitReader.

zip:
- add ZIP64 support.
- add CP437 and UTF-8 filename encoding detection.
- add DOS date/time conversion and timestamp preservation.
- add ZipEntryReader for streaming entry reads.
- implement ZipArchive.extract and ZipArchive.recover helpers.

other:
- Add `set_modified_time` to std::io;
- Add benchmarks and a few more unit tests.

* zip: add archive comment support

add tests

* forgot to rename the benchmark :(

* detect utf8 names on weird zips

fix method not passed to open_writer

* another edge case where directory doesn't end with /

* testing utilities

- detect encrypted zip
- `ZipArchive.open_writer` default to DEFLATE

* fix zip64 creation, add tests

* fix ZIP header endianness for big-endian compatibility

Update ZipLFH, ZipCDH, ZipEOCD, Zip64EOCD, and Zip64Locator structs to
use little-endian bitstruct types from std::core::bitorder

* fix ZipEntryReader position tracking and seek logic ZIP_METHOD_STORE

added a test to track this

* add package-merge algorithm attribution

Thanks @konimarti

* standalone deflate_benchmark.c3 against `miniz`

* fix integer overflows, leaks and improve safety

* a few safety for 32-bit systems and tests

* deflate compress optimization

* improve match finding, hash updates, and buffer usage

* use ulong for zip offsets

* style changes (#18)

* style changes

* update tests

* style changes in `deflate.c3`

* fix typo

* Allocator first. Some changes to deflate to use `copy_to`

* Fix missing conversion on 32 bits.

* Fix deflate stream. Formatting. Prefer switch over if-elseif

* - Stream functions now use long/ulong rather than isz/usz for seek/available.
- `instream.seek` is replaced by `set_cursor` and `cursor`.
- `instream.available`, `cursor` etc are long/ulong rather than isz/usz to be correct on 32-bit.

* Update to constdef

* Fix test

---------

Co-authored-by: Book-reader <thevoid@outlook.co.nz>
Co-authored-by: Christoffer Lerno <christoffer@aegik.com>
2026-02-20 20:41:34 +01:00
BWindey
12eea4a98d [STDLIB] Add macro return types (#2487)
* add return types to macros where applicable
* std::time::clock::now() -> clock::now()
2025-09-18 14:06:58 +02:00
Zack Puhl
078d9dc0b7 Add LinkedList Operators and Update Tests (#2438)
* Add LinkedList Operators and Update Tests
* add linkedlist printing and `@new` macros (single-line init and pool-capable)
* add linkedlist node and reg iterator; comparisons w/ ==
* Fix benchmarks. Drop random access to the linked list using []. Only return a direct array view.

---------

Co-authored-by: Christoffer Lerno <christoffer@aegik.com>
2025-09-06 11:57:21 +02:00
Zack Puhl
35c04cdc36 Add form-feed and vertical tab to trim defaults (#2407)
* Add form-feed and vertical tab to` trim` defaults

* add some initial string-based benchmarking

* update to non-const string

* do not account for mem times in bench

* misc bench fixes to repair reporting times; improve trim tests

* ok last one for real..remove (void) casts

* finally, swap to more efficient default whitespace order in `trim`
2025-08-25 14:23:14 +02:00
Zack Puhl
bf7e7e2397 Fix Benchmark Progress Printing (#2401) 2025-08-14 20:24:37 +02:00
Zack Puhl
604661b12c Increase Primitive Type Hash Speeds (#2329)
* simplify and add much faster hash functions in key locations
* add benchmark runtime @start and @end macros for better control
* update benchmark reporting and hashmap tests

---------

Co-authored-by: Christoffer Lerno <christoffer@aegik.com>
2025-08-04 11:50:17 +02:00
Christoffer Lerno
a03d821602 - Use @pool_init() to set up a temp pool on a thread. Only the main thread has implicit temp pool setup.
- `tmem` is now a variable.
2025-03-21 17:08:58 +01:00
Christoffer Lerno
8b49e6c14d Rename def to alias. 2025-03-13 11:22:27 +01:00
Christoffer Lerno
2a895ec7be First 0.7 update, removing all deprecated features. 2025-03-03 00:32:20 +01:00
Christoffer Lerno
e1d546225f Update stdlib with new syntax for short function decl. 2025-02-08 23:04:59 +01:00
Christoffer Lerno
3a1bba19af Allow test runners to take String[] arguments. 2025-01-09 22:32:59 +01:00