You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Michał "phoe" Herda
494a59fd5f
|
5 years ago | |
|---|---|---|
| bin | 5 years ago | |
| spec | 5 years ago | |
| .gitattributes | ||
| .gitignore | ||
| README.md | ||
| cl-lzma.asd | ||
| cl-lzma.lisp | 5 years ago | |
| old.lisp | ||
| package.lisp | ||
README.md
CL-LZMA
This is a CFFI wrapper around a LZMA foreign library, compiled straight out of the official LZMA SDK C binary.
There is no portable Lisp LZMA (de)compressor because:
- the algorithm is complicated
- the LZMA SDK is very obfuscated code
- there is hardly any documentation for LZMA algorithm
- there is no known workforce that can rewrite this in Lisp.
TODO
- write a proper README, since the code seems to be working
on my machine
Compiling
Right now, only a x64 Linux binary is compiled. To compile your own:
- Install the official LZMA SDK from Igor Pavlov.
- Modify /C/Util/Lzma/makefile.gcc, add -fPIC to CFLAGS.
- Issue make, which will build all object files.
- Build the shared library file. On Linux, this is
$ gcc -shared -O2 -Wall -D_7ZIP_ST -fPIC -o lzma.so *.o- on other platforms, I bet you can figure it out. - Put the file anywhere you want and load it with CFFI.
Credits and inspirations
This is based on https://gist.github.com/phoe/8cfdcb4f34e0584c703f1751072a7813 - a CFFI wrapper that I quickly hacked up.
This is based on https://gist.github.com/Treeki/f431a2ff44aff984590a97a5c09f6f28 which is a C interface to the LZMA SDK.