o j@sLUdZddlmZddlmZdZded<eddhZd ed <dddZ dS)z*Stage 1a: BOM (Byte Order Mark) detection.) annotations)DetectionResult))utf-32)r)sz utf-8-sig)sutf-16)srztuple[tuple[bytes, str], ...]_BOMSrrzfrozenset[bytes] _UTF32_BOMSdatabytesreturnDetectionResult | NonecCsTtD]%\}}||r'|tvrt|t|}|ddkrqt|dddSqdS)zCheck for a byte order mark at the start of *data*. :param data: The raw byte data to examine. :returns: A :class:`DetectionResult` with confidence 1.0, or ``None``. rg?N)encoding confidencelanguage)r startswithr lenr)r bom_bytesr payload_lenrZ/var/www/html/fyndo/pharma/fyndo/venv/lib/python3.10/site-packages/chardet/pipeline/bom.py detect_boms    rN)r r r r ) __doc__ __future__rchardet.pipelinerr__annotations__ frozensetr rrrrrs