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"""
This module contains the list of possible encodings, taken from
the standard library documentation:
https://docs.python.org/3.4/library/codecs.html#standard-encodings
"""
#: Encodings map, map a codec name to a an alias/language pair.#:
ENCODINGS_MAP = {
"ascii": ("US-ASCII", "English"),
"big5": ("Big5", "Chinese traditional"),
"big5hkscs": ("Big5-HKSCS", "Chinese traditional"),
"cp037": ("IBM037", "English"),
"cp424": ("IBM242", "Hebrew"),
"cp437": ("IBM437", "English"),
"cp500": ("IBM500", "Western"),
"cp737": ("IBM737", "Greek"),
"cp775": ("IBM775", "Baltic"),
"cp850": ("IBM850", "Western"),
"cp852": ("IBM852", "Central European"),
"cp855": ("IBM855", "Cyrillic"),
"cp856": ("IBM856", "Hebrew"),
"cp857": ("IBM857", "Turkish"),
"cp860": ("IBM860", "Portugese"),
"cp861": ("IBM861", "Icelandic"),
"cp862": ("IBM862", "Hebrew"),
"cp863": ("IBM863", "Canadian"),
"cp864": ("IBM864", "Arabic"),
"cp865": ("IBM865", "Nordic"),
"cp866": ("IBM866", "Russian"),
"cp869": ("IBM869", "Greek"),
"cp874": ("IBM874", "Thai"),
"cp875": ("IBM875", "Greek"),
"cp932": ("IBM932", "Japanese"),
"cp949": ("IBM949", "Korean"),
"cp950": ("IBM950", "Chinese traditional"),
"cp1006": ("IBM1006", "Urdu"),
"cp1026": ("IBM1026", "Turkish"),
"cp1140": ("IBM1140", "Western"),
"cp1250": ("windows-1250", "Central European"),
"cp1251": ("windows-1251", "Cyrillic"),
"cp1252": ("windows-1252", "Western"),
"cp1253": ("windows-1253", "Greek"),
"cp1254": ("windows-1254", " Turkish"),
"cp1255": ("windows-1255", "Hebrew"),
"cp1256": ("windows-1256", " Arabic"),
"cp1257": ("windows-1257", "Baltic"),
"cp1258": ("windows-1258", "Vietnamese"),
"euc_jp": ("EUC-JP", "Japanese"),
"euc_jis_2004": ("EUC-JIS-2004", "Japanese"),
"euc_jisx0213": ("EUC-JISX0213", "Japanese"),
"euc_kr": ("EUC-KR", "Korean"),
"gb2312": ("GB2312", "Chinese simplified"),
"gbk": ("GBK", "Chinese unified"),
"gb18030": ("GB18030", "Chinese unified"),
"hz": ("HZ", "Chinese simplified"),
"iso2022_jp": ("ISO-2022-JP", "Japanese"),
"iso2022_jp_1": ("ISO-2022-JP-1", "Japanese"),
"iso2022_jp_2": ("ISO-2022-JP-2", "Japanese"),
"iso2022_jp_2004": ("ISO-2022-JP-2004", "Japanese"),
"iso2022_jp_3": ("ISO-2022-JP-3", "Japanese"),
"iso2022_jp_ext": ("ISO-2022-JP-EXT", "Japanese"),
"iso2022_kr": ("ISO-2022-KR", "Korean"),
"latin_1": ("ISO-8859-1", "Western"),
"iso8859_2": ("ISO-8859-2", "Central European"),
"iso8859_3": ("ISO-8859-3", "South European"),
"iso8859_4": ("ISO-8859-4", "Baltic"),
"iso8859_5": ("ISO-8859-5", "Cyrillic"),
"iso8859_6": ("ISO-8859-6", "Arabic"),
"iso8859_7": ("ISO-8859-7", "Greek"),
"iso8859_8": ("ISO-8859-8", "Hebrew"),
"iso8859_9": ("ISO-8859-9", "Turkish"),
"iso8859_10": ("ISO-8859-10", "Nordic"),
"iso8859_13": ("ISO-8859-13", "Baltic"),
"iso8859_14": ("ISO-8859-14", "Celtic"),
"iso8859_15": ("ISO-8859-15", "Western"),
"johab": ("Johab", "Korean"),
"koi8_r": ("KOI8-R", "Russian"),
"koi8_u": ("KOI8-U", "Ukrainian"),
"mac_cyrillic": ("MacCyrillic", "Cyrillic"),
"mac_greek": ("MacGreek", "Greek"),
"mac_iceland": ("MacIceland", "Icelandic"),
"mac_latin2": ("MacCentralEurope", "Central European"),
"mac_roman": ("MacRoman", "Western"),
"mac_turkish": ("MacTurkish", "Turkish"),
"ptcp154": ("PTCP154", "Cyrillic Asian"),
"shift_jis": ("Shift_JIS", "Japanese"),
"shift_jis_2004": ("Shift_JIS-2004", "Japanese"),
"shift_jisx0213": ("Shift_JISX0213", "Japanese"),
"utf_16": ("UTF-16", "Unicode"),
"utf_16_be": ("UTF-16BE", "Unicode"),
"utf_16_le": ("UTF-16LE", "Unicode"),
"utf_7": ("UTF-7", "Unicode"),
"utf_8": ("UTF-8", "Unicode")
}
def convert_to_codec_key(value):
"""
Normalize code key value (encoding codecs must be lower case and must
not contain any dashes).
:param value: value to convert.
"""
if not value:
# fallback to utf-8
value = 'UTF-8'
# UTF-8 -> utf_8
converted = value.replace('-', '_').lower()
# fix some corner cases, see https://github.com/pyQode/pyQode/issues/11
all_aliases = {
'ascii': [
'us_ascii',
'us',
'ansi_x3.4_1968',
'cp367',
'csascii',
'ibm367',
'iso_ir_6',
'iso646_us',
'iso_646.irv:1991'
],
'utf-7': [
'csunicode11utf7',
'unicode_1_1_utf_7',
'unicode_2_0_utf_7',
'x_unicode_1_1_utf_7',
'x_unicode_2_0_utf_7',
],
'utf_8': [
'unicode_1_1_utf_8',
'unicode_2_0_utf_8',
'x_unicode_1_1_utf_8',
'x_unicode_2_0_utf_8',
],
'utf_16': [
'utf_16le',
'ucs_2',
'unicode',
'iso_10646_ucs2'
],
'latin_1': ['iso_8859_1']
}
for key, aliases in all_aliases.items():
if converted in aliases:
return key
return converted
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