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Implement Uint8 encoding/decoding #5

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Merged
gkovacs merged 1 commit into from
May 13, 2020
Merged

Implement Uint8 encoding/decoding #5

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18 changes: 17 additions & 1 deletion lzstring/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,10 @@ def _compress(uncompressed, bitsPerChar, getCharFromInt):
context_data_position = 0

for ii in range(len(uncompressed)):
context_c = uncompressed[ii]
if isinstance(uncompressed, (bytes)):
context_c = chr(uncompressed[ii])
else:
context_c = uncompressed[ii]
if context_c not in context_dictionary:
context_dictionary[context_c] = context_dictSize
context_dictSize += 1
Expand Down Expand Up @@ -373,6 +376,11 @@ class LZString(object):
def compress(uncompressed):
return _compress(uncompressed, 16, chr)

@staticmethod
def compressToUint8Array(uncompressed):
return bytes([ord(x) for x in _compress(uncompressed, 8, chr)])


@staticmethod
def compressToUTF16(uncompressed):
if uncompressed is None:
Expand Down Expand Up @@ -404,6 +412,14 @@ def decompress(compressed):
return None
return _decompress(len(compressed), 32768, lambda index: ord(compressed[index]))

@staticmethod
def decompressFromUint8Array(compressed):
if compressed is None:
return ""
if compressed == "":
return None
return _decompress(len(compressed), 128, lambda index: compressed[index])

@staticmethod
def decompressFromUTF16(compressed):
if compressed is None:
Expand Down