dCddlmZddlZddlZddlmZddlmZdZ hdZ ddddd d d Z d Z d Z d ZdZdZdZdZdS)) annotationsN)coding)Variablez_.@+- !"#$%&\()*,:;<=>?[]^`{|}~> intboolbytecharrealuintfloatint64shortdoublestringuint64ushortint32int16int8)r ruint32uint16uint8rutf-8ct|j}|tvrQt|}||}||kst d|d||}|S)aCoerce an array to a data type that can be stored in a netCDF-3 file This function performs the dtype conversions as specified by the ``_nc3_dtype_coercions`` mapping: int64 -> int32 uint64 -> int32 uint32 -> int32 uint16 -> int16 uint8 -> int8 bool -> int8 Data is checked for equality, or equivalence (non-NaN values) using the ``(cast_array == original_array).all()``. z'could not safely cast array from dtype z to )strdtype_nc3_dtype_coercionsastypeall ValueError)arrr new_dtypecast_arrs 7lib/python3.11/site-packages/xarray/backends/netcdf3.pycoerce_nc3_dtyper%/s  NNE $$$(/ ::i((C$$&& P%PPYPP  Jct|trnkt|tr|t}n;t t j|}|jdkrtd|S)Nz'netCDF attributes must be 1-dimensional) isinstancebytesrencodeSTRING_ENCODINGr%np atleast_1dndimr )values r$encode_nc3_attr_valuer1Kst%H E3  H _-- u!5!566 :>>FGG G Lr&c>d|DS)Nc4i|]\}}|t|S)r1).0kvs r$ z$encode_nc3_attrs..Xs' B B BDAqA$Q'' B B Br&)items)attrss r$encode_nc3_attrsr;Ws B BEKKMM B B BBr&c6tjdtjfD]}||}t |j}t|j}t|j |||j S)NF)allows_unicode) rstringsEncodedStringCoderCharacterArrayCoderr+r%datar;r:rdimsencoding)varcoderrAr:s r$encode_nc3_variablerF[s)))??**,,  ll3 CH % %D SY ' 'E CHdE3< 8 88r&cv|p%t|ddkS)zrReturn True if the given UTF-8 encoded character is alphanumeric or multibyte. Input is not checked! rr()isalnumlenr+)cs r$ _isalnumMUTF8rKfs0 99;; 63qxx0011A56r&cXt|tsdSt|d}t jd||koX|t voO|dkoId|voE|ddko9t|dp |ddkotd |DS) arTest whether an object can be validly converted to a netCDF-3 dimension, variable or attribute name Earlier versions of the netCDF C-library reference implementation enforced a more restricted set of characters in creating new names, but permitted reading names containing arbitrary bytes. This specification extends the permitted characters in names to include multi-byte UTF-8 encoded Unicode and additional printing characters from the US-ASCII alphabet. The first character of a name must be alphanumeric, a multi-byte UTF-8 character, or '_' (reserved for special names with meaning to implementations, such as the "_FillValue" attribute). Subsequent characters may also include printing special characters, except for '/' which is not allowed in names. Names that have trailing space characters are also not permitted. FrNFCr/ _c3FK|]}t|p|tvVdS)N)rK _specialchars)r5rJs r$ z$is_valid_nc3_name..s4BB1 a  6A$6BBBBBBr&) r)rrIr+ unicodedata normalize_reserved_namesrKr)s num_bytess r$is_valid_nc3_namerZos" a  uAHHW%%&&I  ua ( (A - C o % C !^ C\ CrUc\  C 1Q4 1QqTS[  C BBBBB B Br&) __future__rrUnumpyr-xarrayrxarray.core.variablerrSrWrr,r%r1r;rFrKrZr4r&r$r_s""""""))))))3 &   8   CCC999777r&