[fpc-pascal] freepascal lz4 library?

[wkitty42 at windstream.net]

TLDR; i'm looking for a (small?) Pascal library to handle lz4 data blocks 
contained inside a data file...

i've looked for information on how to create and open blocks of lz4 compressed 
data in data files... i haven't found much and i'm not sure i'm searching 
properly... asking uncle google about "freepascal library to decompress lz4 data 
blocks" seemed like it would be specific enough but nope...

i have a data file provided by another party... this file is made of multiple 
lz4 blocks with a custom header at the beginning of each block... to process 
each block, we read the custom header which contains a 4 byte magic number, 4 
byte compressed block size, 4 byte decompressed block size, and a 4 byte 
"separator"... the data for the compressed block follows till the end of the 
compressed block size... then we simply loop through each of the blocks until 
the end of the file...

i can do this in python3 but i would rather do it in Pascal because i have an 
idea for a project that i think i want to write in Pascal...  Freepascal and 
possibly Lazarus are my weapons and the only thing i cannot find is the lz4 ammo 
library i can use... once i figure this out, the next goal is figuring out how 
to read and write the contained JSON data...



it has been over a decade, now, since i last wrote any Pascal code and that was 
35+ years of on and off writing command line text mode stuff... i plan to start 
this project as a command line text mode application and then, hopefully, easily 
add a clicky GUI to it or wrap a clicky GUI around the guts of the file handling 
and (de)compressing code...

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