Zip-Ada

Changes in '51', 27-Aug-2016: - LZMA.Encoding has been added; it is a standalone compressor, see lzma_enc.adb for an example of use. - Zip.Compress provides now LZMA_1, LZMA_2 methods. In other words, you can use the LZMA compression ... [More] with Zip.Create. - Zip.Compress has also a "Preselection" method that selects a compression method depending on hints like the uncompressed size. - Zip.Compress.Deflate: Deflate_1 .. Deflate_3 compression is slightly better. [Less]

Changes in '51', 27-Aug-2016: LZMA.Encoding has been added; it is a standalone compressor, see lzma_enc.adb for an example of use. Zip.Compress provides now LZMA_1, LZMA_2 methods. In other words, you can use the LZMA compression with ... [More] Zip.Create. Zip.Compress has also a "Preselection" method that selects a compression method depending on hints like the uncompressed size. Zip.Compress.Deflate: Deflate_1 .. Deflate_3 compression is slightly better. [Less]

LZMA.Encoding: started July 28th, first working version August 16th (revision 457). Zip-Ada's Zip.Compress makes use of LZMA encoding since revision 459. More details here.

... can be read here: http://gautiersblog.blogspot.ch/2016/04/zip-ada-v50.html

Available from now here: http://sourceforge.net/projects/unzip-ada/files/zipada50-bin-win32.zip/download To access it from the project page, click on "Browse All Files".

In a nutshell, there are now, finally, fast and efficient compression methods available. Changes in '50', 31-Mar-2016: Zip.Compress.Shrink is slightly faster Zip.Compress.Deflate has new compression features: Deflate_Fixed is much faster, with ... [More] slightly better compression Deflate_1 was added: strength similar to zlib, level 6 Deflate_2 was added: strength similar to zlib, level 9 Deflate_3 was added: strength similar to 7-Zip, method=deflate, level 5 [Less]

Zip.Compress.Deflate: first variant with 'dynamic' compression working

Encryption implemented (portable Zip 2.0 encryption scheme)

Encryption implemented (portable Zip 2.0 encryption scheme)

Under test: encryption (the Zip 2.0 flavor). Feedback is welcome!