There seems to be some issue in decompressFromUTF16.. the following code does not work. Is there something wrong?

chk_str = "Test String"
compressed = x.compressToUTF16(chk_str)
print(compressed)
print(x.decompressFromUTF16(compressed))

Hi,

because of changes made in the encoding method of lz-string(pieroxy/lz-string@2d5a419), the javascript version can produce strings that can't be decompressed with this version.

This example raise an IndexError:

l=lzstring.LZString()
l.decompresFromBase64("A4cwdA9gtAcg9APyA===")

If anyone is interested I've found this https://github.com/pieroxy/lz-string/blob/0dda98caa06c4c09e251a96378538169dfbc5a5f/libs/lz-string.js as the last version compatible.

import lzstring


x = "N4IgLgngDgpiBcIBGAnAhgOwCYgDQgBs0EQYM8QBHASxIAYBaGAOSwAUAOAMzAHY0AYgHcAWtQCuADQD2WNAQBeADyRIhCgIIBFLABlpANQIARAEIBNABIQAVlwCi0gKoBZALwVK4mN4QBGfAB9Ej8/Og46EABfIAAA="

z = lzstring.LZString().decompressFromBase64(x)

y = lzstring.LZString().compressToBase64(z)

print(y)

print(x == y)

The padding is incorrect!

Hi,

I'd like to use this in a little project I'm working on at work, and I was wondering if you could clarify the license this code is under. Is it WTFPL like lz-string itself?

Many thanks!

Taking this code out for a spin, because I use Python to generate JS code in one application, I loaded a random text file off my system into Python, it was 253990 characters, and ran compress, and got 41993 characters back. It decompressed fine. Yay!

But then I tried out compressToUTF16, and got 8 characters back. And there seems not to be a decompressFromUTF16! But I sort of doubt that 8 characters could hold the original file...

import lzstring

x = lzstring.LZString()

print x.compressToBase64("Dak0tajdjdjdddddddddddddddddddddddd")

Error:
Traceback (most recent call last):
File "try.py", line 5, in
print x.compressToBase64("Dak0tajdjdjdddddddddddddddddddddddd")
File "/home/solstice/lzstring.py", line 256, in compressToBase64
string = self.compress(string)
File "/home/solstice/lzstring.py", line 64, in compress
context_data_string += chr(context_data_val)
ValueError: chr() arg not in range(256)

the context_data_val is 2180 at this point!!

Hi,
When I execute in python

a = "N4IgKgTglghgNgBQPZQHYBcQC4DaOCMALPgOwn4AcJFhAnAMwkA0IAVOwAQDK6ME6HdNHgd2rEAF0JAXyAA="
x = lzstring.LZString()
x.decompresFromBase64(a)

it throws me the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "lzstring.py", line 578, in decompresFromBase64
    output += chr(output_ | chr2)
ValueError: chr() arg not in range(256)

But in the javascript implementation it decodes it perfectly.

Im trying to decompress an api response that is compressed in utf-16 but when i try it i get the following error "UnicodeEncodeError: 'utf-8' codec can't encode character '\udc00' in position 0: surrogates not allowed" (note that the character is not always the same). I researched it and i found that the character is probably an emoji. I tryied to encode and decode the string before the decpmpress with surrogateescape, or surrogatepass with no luck.. Any idea how to fix it?