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import zip/zlib
proc compress*(source: string): string =
var
sourcelen = source.len
destlen = sourcelen + (sourcelen.float * 0.1).int + 16
result = ""
result.setLen destLen
var res = zlib.compress(cstring(result), addr destLen, cstring(source), sourceLen)
if res != Z_OK:
echo "Error occurred: ", res
elif destLen < result.len:
result.setLen(destLen)
proc uncompress*(source: string, destLen: var int): string =
result = ""
result.setLen destLen
var res = zlib.uncompress(cstring(result), addr destLen, cstring(source), source.len)
if res != Z_OK:
echo "Error occurred: ", res
when true:
import strutils
var r = compress("Hello")
echo repr(r)
var ln = "Hello".len
var rr = uncompress(r, ln)
echo repr(rr)
assert rr == "Hello"
proc `*`(a: string; b: int): string {.inline.} = result = repeat(a, b)
var s = "yo dude sup bruh homie" * 50
r = compress(s)
echo s.len, " -> ", r.len
ln = s.len
rr = uncompress(r, ln)
echo r.len, " -> ", rr.len
assert rr == s
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