a kCi@sdZddlZddlZddlmZiZdZdgZejZGddde e Z d d Z d d Z ee ejd kr|ddZeedS)a2 Standard "encodings" Package Standard Python encoding modules are stored in this package directory. Codec modules must have names corresponding to normalized encoding names as defined in the normalize_encoding() function below, e.g. 'utf-8' must be implemented by the module 'utf_8.py'. Each codec module must export the following interface: * getregentry() -> codecs.CodecInfo object The getregentry() API must return a CodecInfo object with encoder, decoder, incrementalencoder, incrementaldecoder, streamwriter and streamreader attributes which adhere to the Python Codec Interface Standard. In addition, a module may optionally also define the following APIs which are then used by the package's codec search function: * getaliases() -> sequence of encoding name strings to use as aliases Alias names returned by getaliases() must be normalized encoding names as defined by normalize_encoding(). Written by Marc-Andre Lemburg (mal@lemburg.com). (c) Copyright CNRI, All Rights Reserved. NO WARRANTY. N)aliasesz --unknown--*c@s eZdZdS)CodecRegistryErrorN)__name__ __module__ __qualname__r r ./usr/local/lib/python3.9/encodings/__init__.pyr(srcCsft|trt|d}g}d}|D]:}|s4|dkrV|rF|rF|d||d}q d}q d|S)ae Normalize an encoding name. Normalization works as follows: all non-alphanumeric characters except the dot used for Python package names are collapsed and replaced with a single underscore, e.g. ' -;#' becomes '_'. Leading and trailing underscores are removed. Note that encoding names should be ASCII only. asciiF._T) isinstancebytesstrisalnumappendjoin)encodingZcharsZpunctcr r r normalize_encoding+s    rc Cspt|t}|tur|St|}t|p:t|dd}|durN||g}n|g}|D]@}|rXd|vrjqXztd|tdd}WntyYqX0qqXd}z |j }Wnt yd}Yn0|durdt|<dS|}t |t j s$dt|krdksntd|j|jft|drt|d r|d durRt|d r|d durnt|d rt|dkr|ddurt|drt|d kr|d durt|d std |j|jft|dks|ddur|ddt||jdd d f7}t j |}|t|<z |}Wnt yLYn 0|D]} | tvrR|t| <qR|S)Nr r z encodings.r)fromlistlevelz#module "%s" (%s) failed to registerrz'incompatible codecs in module "%s" (%s))N)_cacheget_unknownr_aliasesreplace __import__ _import_tail ImportError getregentryAttributeErrorrcodecsZ CodecInfolenrr__file__callablesplitZ getaliases) rentryZ norm_encodingZaliased_encodingZmodnamesZmodnamemodr(Z codecaliasesZaliasr r r search_functionFs                      (    r1Zwin32cCsLz4ddl}d|}||kr2ddl}|jWSWntyFYn0dS)Nrzcp%s)_winapiZGetACPZencodings.mbcsZmbcsr(r')rr2Zansi_code_pageZ encodingsr r r _alias_mbcss  r3)__doc__r*sysrrr r"r&r# LookupError SystemErrorrrr1registerplatformr3r r r r s U