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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-06-08 18:08
LICENSE	1.5 KB	-rw-r--r--	1980-01-01 08:00
__init__.py	849 B	-rw-r--r--	1980-01-01 08:00
codec.py	3.35 KB	-rw-r--r--	1980-01-01 08:00
compat.py	321 B	-rw-r--r--	1980-01-01 08:00
core.py	12.37 KB	-rw-r--r--	1980-01-01 08:00
idnadata.py	76.48 KB	-rw-r--r--	1980-01-01 08:00
intranges.py	1.84 KB	-rw-r--r--	1980-01-01 08:00
package_data.py	21 B	-rw-r--r--	1980-01-01 08:00
uts46data.py	201.66 KB	-rw-r--r--	1980-01-01 08:00

Rename

from .core import encode, decode, alabel, ulabel, IDNAError
import codecs
import re
from typing import Any, Tuple, Optional

_unicode_dots_re = re.compile('[\u002e\u3002\uff0e\uff61]')

class Codec(codecs.Codec):

def encode(self, data: str, errors: str = 'strict') -> Tuple[bytes, int]:
        if errors != 'strict':
            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))

if not data:
            return b"", 0

return encode(data), len(data)

def decode(self, data: bytes, errors: str = 'strict') -> Tuple[str, int]:
        if errors != 'strict':
            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))

if not data:
            return '', 0

return decode(data), len(data)

class IncrementalEncoder(codecs.BufferedIncrementalEncoder):
    def _buffer_encode(self, data: str, errors: str, final: bool) -> Tuple[bytes, int]:
        if errors != 'strict':
            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))

if not data:
            return b'', 0

labels = _unicode_dots_re.split(data)
        trailing_dot = b''
        if labels:
            if not labels[-1]:
                trailing_dot = b'.'
                del labels[-1]
            elif not final:
                # Keep potentially unfinished label until the next call
                del labels[-1]
                if labels:
                    trailing_dot = b'.'

result = []
        size = 0
        for label in labels:
            result.append(alabel(label))
            if size:
                size += 1
            size += len(label)

# Join with U+002E
        result_bytes = b'.'.join(result) + trailing_dot
        size += len(trailing_dot)
        return result_bytes, size

class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
    def _buffer_decode(self, data: Any, errors: str, final: bool) -> Tuple[str, int]:
        if errors != 'strict':
            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))

if not data:
            return ('', 0)

if not isinstance(data, str):
            data = str(data, 'ascii')

labels = _unicode_dots_re.split(data)
        trailing_dot = ''
        if labels:
            if not labels[-1]:
                trailing_dot = '.'
                del labels[-1]
            elif not final:
                # Keep potentially unfinished label until the next call
                del labels[-1]
                if labels:
                    trailing_dot = '.'

result = []
        size = 0
        for label in labels:
            result.append(ulabel(label))
            if size:
                size += 1
            size += len(label)

result_str = '.'.join(result) + trailing_dot
        size += len(trailing_dot)
        return (result_str, size)

class StreamWriter(Codec, codecs.StreamWriter):
    pass

class StreamReader(Codec, codecs.StreamReader):
    pass

def search_function(name: str) -> Optional[codecs.CodecInfo]:
    if name != 'idna2008':
        return None
    return codecs.CodecInfo(
        name=name,
        encode=Codec().encode,
        decode=Codec().decode,
        incrementalencoder=IncrementalEncoder,
        incrementaldecoder=IncrementalDecoder,
        streamwriter=StreamWriter,
        streamreader=StreamReader,
    )

codecs.register(search_function)