use super::Charset;
pub(super) fn lookup(label: &[u8]) -> Option<Charset> {
hashify::map_ignore_case!(label, Charset,
"850" => Charset::Ibm850,
"866" => Charset::Ibm866,
"ansi-x3.4-1968" => Charset::Windows1252,
"ansi-x3.4_1968" => Charset::Windows1252,
"ansi_x3.4-1968" => Charset::Windows1252,
"ansi_x3.4_1968" => Charset::Windows1252,
"arabic" => Charset::Iso8859_6,
"ascii" => Charset::Windows1252,
"asmo-708" => Charset::Iso8859_6,
"asmo_708" => Charset::Iso8859_6,
"big5" => Charset::Big5,
"big5-hkscs" => Charset::Big5,
"big5_hkscs" => Charset::Big5,
"chinese" => Charset::Gbk,
"cn-big5" => Charset::Big5,
"cn_big5" => Charset::Big5,
"cp1250" => Charset::Windows1250,
"cp1251" => Charset::Windows1251,
"cp1252" => Charset::Windows1252,
"cp1253" => Charset::Windows1253,
"cp1254" => Charset::Windows1254,
"cp1255" => Charset::Windows1255,
"cp1256" => Charset::Windows1256,
"cp1257" => Charset::Windows1257,
"cp1258" => Charset::Windows1258,
"cp819" => Charset::Windows1252,
"cp850" => Charset::Ibm850,
"cp866" => Charset::Ibm866,
"cp936" => Charset::Gbk,
"cp949" => Charset::EucKr,
"csbig5" => Charset::Big5,
"cseuckr" => Charset::EucKr,
"cseucpkdfmtjapanese" => Charset::EucJp,
"csgb18030" => Charset::Gb18030,
"csgb2312" => Charset::Gbk,
"csgbk" => Charset::Gbk,
"csibm866" => Charset::Ibm866,
"csiso2022jp" => Charset::Iso2022Jp,
"csiso2022kr" => Charset::Replacement,
"csiso58gb231280" => Charset::Gbk,
"csiso885913" => Charset::Iso8859_13,
"csiso885914" => Charset::Iso8859_14,
"csiso885915" => Charset::Iso8859_15,
"csiso885916" => Charset::Iso8859_16,
"csiso88596e" => Charset::Iso8859_6,
"csiso88596i" => Charset::Iso8859_6,
"csiso88598e" => Charset::Iso8859_8,
"csiso88598i" => Charset::Iso8859_8,
"csisolatin1" => Charset::Windows1252,
"csisolatin2" => Charset::Iso8859_2,
"csisolatin3" => Charset::Iso8859_3,
"csisolatin4" => Charset::Iso8859_4,
"csisolatin5" => Charset::Windows1254,
"csisolatin6" => Charset::Iso8859_10,
"csisolatin9" => Charset::Iso8859_15,
"csisolatinarabic" => Charset::Iso8859_6,
"csisolatincyrillic" => Charset::Iso8859_5,
"csisolatingreek" => Charset::Iso8859_7,
"csisolatinhebrew" => Charset::Iso8859_8,
"cskoi8r" => Charset::Koi8R,
"cskoi8u" => Charset::Koi8U,
"csksc56011987" => Charset::EucKr,
"csmacintosh" => Charset::Macintosh,
"cspc850multilingual" => Charset::Ibm850,
"csshiftjis" => Charset::ShiftJis,
"cstis620" => Charset::Windows874,
"csunicode" => Charset::Utf16,
"csutf16" => Charset::Utf16,
"csutf16be" => Charset::Utf16Be,
"csutf16le" => Charset::Utf16Le,
"csutf7" => Charset::Utf7,
"cswindows1250" => Charset::Windows1250,
"cswindows1251" => Charset::Windows1251,
"cswindows1252" => Charset::Windows1252,
"cswindows1253" => Charset::Windows1253,
"cswindows1254" => Charset::Windows1254,
"cswindows1255" => Charset::Windows1255,
"cswindows1256" => Charset::Windows1256,
"cswindows1257" => Charset::Windows1257,
"cswindows1258" => Charset::Windows1258,
"cswindows874" => Charset::Windows874,
"cyrillic" => Charset::Iso8859_5,
"dos-874" => Charset::Windows874,
"dos_874" => Charset::Windows874,
"ecma-114" => Charset::Iso8859_6,
"ecma-118" => Charset::Iso8859_7,
"ecma_114" => Charset::Iso8859_6,
"ecma_118" => Charset::Iso8859_7,
"elot-928" => Charset::Iso8859_7,
"elot_928" => Charset::Iso8859_7,
"euc-jp" => Charset::EucJp,
"euc-kr" => Charset::EucKr,
"euc_jp" => Charset::EucJp,
"euc_kr" => Charset::EucKr,
"extended-unix-code-packed-format-for-japanese" => Charset::EucJp,
"extended-unix-code-packed-format-for_japanese" => Charset::EucJp,
"extended-unix-code-packed-format_for-japanese" => Charset::EucJp,
"extended-unix-code-packed-format_for_japanese" => Charset::EucJp,
"extended-unix-code-packed_format-for-japanese" => Charset::EucJp,
"extended-unix-code-packed_format-for_japanese" => Charset::EucJp,
"extended-unix-code-packed_format_for-japanese" => Charset::EucJp,
"extended-unix-code-packed_format_for_japanese" => Charset::EucJp,
"extended-unix-code_packed-format-for-japanese" => Charset::EucJp,
"extended-unix-code_packed-format-for_japanese" => Charset::EucJp,
"extended-unix-code_packed-format_for-japanese" => Charset::EucJp,
"extended-unix-code_packed-format_for_japanese" => Charset::EucJp,
"extended-unix-code_packed_format-for-japanese" => Charset::EucJp,
"extended-unix-code_packed_format-for_japanese" => Charset::EucJp,
"extended-unix-code_packed_format_for-japanese" => Charset::EucJp,
"extended-unix-code_packed_format_for_japanese" => Charset::EucJp,
"extended-unix_code-packed-format-for-japanese" => Charset::EucJp,
"extended-unix_code-packed-format-for_japanese" => Charset::EucJp,
"extended-unix_code-packed-format_for-japanese" => Charset::EucJp,
"extended-unix_code-packed-format_for_japanese" => Charset::EucJp,
"extended-unix_code-packed_format-for-japanese" => Charset::EucJp,
"extended-unix_code-packed_format-for_japanese" => Charset::EucJp,
"extended-unix_code-packed_format_for-japanese" => Charset::EucJp,
"extended-unix_code-packed_format_for_japanese" => Charset::EucJp,
"extended-unix_code_packed-format-for-japanese" => Charset::EucJp,
"extended-unix_code_packed-format-for_japanese" => Charset::EucJp,
"extended-unix_code_packed-format_for-japanese" => Charset::EucJp,
"extended-unix_code_packed-format_for_japanese" => Charset::EucJp,
"extended-unix_code_packed_format-for-japanese" => Charset::EucJp,
"extended-unix_code_packed_format-for_japanese" => Charset::EucJp,
"extended-unix_code_packed_format_for-japanese" => Charset::EucJp,
"extended-unix_code_packed_format_for_japanese" => Charset::EucJp,
"extended_unix-code-packed-format-for-japanese" => Charset::EucJp,
"extended_unix-code-packed-format-for_japanese" => Charset::EucJp,
"extended_unix-code-packed-format_for-japanese" => Charset::EucJp,
"extended_unix-code-packed-format_for_japanese" => Charset::EucJp,
"extended_unix-code-packed_format-for-japanese" => Charset::EucJp,
"extended_unix-code-packed_format-for_japanese" => Charset::EucJp,
"extended_unix-code-packed_format_for-japanese" => Charset::EucJp,
"extended_unix-code-packed_format_for_japanese" => Charset::EucJp,
"extended_unix-code_packed-format-for-japanese" => Charset::EucJp,
"extended_unix-code_packed-format-for_japanese" => Charset::EucJp,
"extended_unix-code_packed-format_for-japanese" => Charset::EucJp,
"extended_unix-code_packed-format_for_japanese" => Charset::EucJp,
"extended_unix-code_packed_format-for-japanese" => Charset::EucJp,
"extended_unix-code_packed_format-for_japanese" => Charset::EucJp,
"extended_unix-code_packed_format_for-japanese" => Charset::EucJp,
"extended_unix-code_packed_format_for_japanese" => Charset::EucJp,
"extended_unix_code-packed-format-for-japanese" => Charset::EucJp,
"extended_unix_code-packed-format-for_japanese" => Charset::EucJp,
"extended_unix_code-packed-format_for-japanese" => Charset::EucJp,
"extended_unix_code-packed-format_for_japanese" => Charset::EucJp,
"extended_unix_code-packed_format-for-japanese" => Charset::EucJp,
"extended_unix_code-packed_format-for_japanese" => Charset::EucJp,
"extended_unix_code-packed_format_for-japanese" => Charset::EucJp,
"extended_unix_code-packed_format_for_japanese" => Charset::EucJp,
"extended_unix_code_packed-format-for-japanese" => Charset::EucJp,
"extended_unix_code_packed-format-for_japanese" => Charset::EucJp,
"extended_unix_code_packed-format_for-japanese" => Charset::EucJp,
"extended_unix_code_packed-format_for_japanese" => Charset::EucJp,
"extended_unix_code_packed_format-for-japanese" => Charset::EucJp,
"extended_unix_code_packed_format-for_japanese" => Charset::EucJp,
"extended_unix_code_packed_format_for-japanese" => Charset::EucJp,
"extended_unix_code_packed_format_for_japanese" => Charset::EucJp,
"gb-2312" => Charset::Gbk,
"gb-2312-80" => Charset::Gbk,
"gb-2312_80" => Charset::Gbk,
"gb18030" => Charset::Gb18030,
"gb2312" => Charset::Gb18030,
"gb_2312" => Charset::Gbk,
"gb_2312-80" => Charset::Gbk,
"gb_2312_80" => Charset::Gbk,
"gbk" => Charset::Gbk,
"greek" => Charset::Iso8859_7,
"greek8" => Charset::Iso8859_7,
"hebrew" => Charset::Iso8859_8,
"hz-gb-2312" => Charset::Replacement,
"hz-gb_2312" => Charset::Replacement,
"hz_gb-2312" => Charset::Replacement,
"hz_gb_2312" => Charset::Replacement,
"ibm819" => Charset::Windows1252,
"ibm850" => Charset::Ibm850,
"ibm866" => Charset::Ibm866,
"iso-10646-ucs-2" => Charset::Utf16,
"iso-10646-ucs_2" => Charset::Utf16,
"iso-10646_ucs-2" => Charset::Utf16,
"iso-10646_ucs_2" => Charset::Utf16,
"iso-2022-cn" => Charset::Replacement,
"iso-2022-cn-ext" => Charset::Replacement,
"iso-2022-cn_ext" => Charset::Replacement,
"iso-2022-jp" => Charset::Iso2022Jp,
"iso-2022-kr" => Charset::Replacement,
"iso-2022_cn" => Charset::Replacement,
"iso-2022_cn-ext" => Charset::Replacement,
"iso-2022_cn_ext" => Charset::Replacement,
"iso-2022_jp" => Charset::Iso2022Jp,
"iso-2022_kr" => Charset::Replacement,
"iso-8859-1" => Charset::Windows1252,
"iso-8859-10" => Charset::Iso8859_10,
"iso-8859-10:1992" => Charset::Iso8859_10,
"iso-8859-11" => Charset::Windows874,
"iso-8859-13" => Charset::Iso8859_13,
"iso-8859-14" => Charset::Iso8859_14,
"iso-8859-14:1998" => Charset::Iso8859_14,
"iso-8859-15" => Charset::Iso8859_15,
"iso-8859-16" => Charset::Iso8859_16,
"iso-8859-16:2001" => Charset::Iso8859_16,
"iso-8859-1:1987" => Charset::Windows1252,
"iso-8859-2" => Charset::Iso8859_2,
"iso-8859-2:1987" => Charset::Iso8859_2,
"iso-8859-3" => Charset::Iso8859_3,
"iso-8859-3:1988" => Charset::Iso8859_3,
"iso-8859-4" => Charset::Iso8859_4,
"iso-8859-4:1988" => Charset::Iso8859_4,
"iso-8859-5" => Charset::Iso8859_5,
"iso-8859-5:1988" => Charset::Iso8859_5,
"iso-8859-6" => Charset::Iso8859_6,
"iso-8859-6-e" => Charset::Iso8859_6,
"iso-8859-6-i" => Charset::Iso8859_6,
"iso-8859-6:1987" => Charset::Iso8859_6,
"iso-8859-6_e" => Charset::Iso8859_6,
"iso-8859-6_i" => Charset::Iso8859_6,
"iso-8859-7" => Charset::Iso8859_7,
"iso-8859-7:1987" => Charset::Iso8859_7,
"iso-8859-8" => Charset::Iso8859_8,
"iso-8859-8-e" => Charset::Iso8859_8,
"iso-8859-8-i" => Charset::Iso8859_8,
"iso-8859-8:1988" => Charset::Iso8859_8,
"iso-8859-8_e" => Charset::Iso8859_8,
"iso-8859-8_i" => Charset::Iso8859_8,
"iso-8859-9" => Charset::Windows1254,
"iso-8859-9:1989" => Charset::Windows1254,
"iso-8859_1" => Charset::Windows1252,
"iso-8859_10" => Charset::Iso8859_10,
"iso-8859_10:1992" => Charset::Iso8859_10,
"iso-8859_11" => Charset::Windows874,
"iso-8859_13" => Charset::Iso8859_13,
"iso-8859_14" => Charset::Iso8859_14,
"iso-8859_14:1998" => Charset::Iso8859_14,
"iso-8859_15" => Charset::Iso8859_15,
"iso-8859_16" => Charset::Iso8859_16,
"iso-8859_16:2001" => Charset::Iso8859_16,
"iso-8859_1:1987" => Charset::Windows1252,
"iso-8859_2" => Charset::Iso8859_2,
"iso-8859_2:1987" => Charset::Iso8859_2,
"iso-8859_3" => Charset::Iso8859_3,
"iso-8859_3:1988" => Charset::Iso8859_3,
"iso-8859_4" => Charset::Iso8859_4,
"iso-8859_4:1988" => Charset::Iso8859_4,
"iso-8859_5" => Charset::Iso8859_5,
"iso-8859_5:1988" => Charset::Iso8859_5,
"iso-8859_6" => Charset::Iso8859_6,
"iso-8859_6-e" => Charset::Iso8859_6,
"iso-8859_6-i" => Charset::Iso8859_6,
"iso-8859_6:1987" => Charset::Iso8859_6,
"iso-8859_6_e" => Charset::Iso8859_6,
"iso-8859_6_i" => Charset::Iso8859_6,
"iso-8859_7" => Charset::Iso8859_7,
"iso-8859_7:1987" => Charset::Iso8859_7,
"iso-8859_8" => Charset::Iso8859_8,
"iso-8859_8-e" => Charset::Iso8859_8,
"iso-8859_8-i" => Charset::Iso8859_8,
"iso-8859_8:1988" => Charset::Iso8859_8,
"iso-8859_8_e" => Charset::Iso8859_8,
"iso-8859_8_i" => Charset::Iso8859_8,
"iso-8859_9" => Charset::Windows1254,
"iso-8859_9:1989" => Charset::Windows1254,
"iso-celtic" => Charset::Iso8859_14,
"iso-ir-100" => Charset::Windows1252,
"iso-ir-101" => Charset::Iso8859_2,
"iso-ir-109" => Charset::Iso8859_3,
"iso-ir-110" => Charset::Iso8859_4,
"iso-ir-126" => Charset::Iso8859_7,
"iso-ir-127" => Charset::Iso8859_6,
"iso-ir-138" => Charset::Iso8859_8,
"iso-ir-144" => Charset::Iso8859_5,
"iso-ir-148" => Charset::Windows1254,
"iso-ir-149" => Charset::EucKr,
"iso-ir-157" => Charset::Iso8859_10,
"iso-ir-199" => Charset::Iso8859_14,
"iso-ir-226" => Charset::Iso8859_16,
"iso-ir-58" => Charset::Gbk,
"iso-ir_100" => Charset::Windows1252,
"iso-ir_101" => Charset::Iso8859_2,
"iso-ir_109" => Charset::Iso8859_3,
"iso-ir_110" => Charset::Iso8859_4,
"iso-ir_126" => Charset::Iso8859_7,
"iso-ir_127" => Charset::Iso8859_6,
"iso-ir_138" => Charset::Iso8859_8,
"iso-ir_144" => Charset::Iso8859_5,
"iso-ir_148" => Charset::Windows1254,
"iso-ir_149" => Charset::EucKr,
"iso-ir_157" => Charset::Iso8859_10,
"iso-ir_199" => Charset::Iso8859_14,
"iso-ir_226" => Charset::Iso8859_16,
"iso-ir_58" => Charset::Gbk,
"iso8859-1" => Charset::Windows1252,
"iso8859-10" => Charset::Iso8859_10,
"iso8859-11" => Charset::Windows874,
"iso8859-13" => Charset::Iso8859_13,
"iso8859-14" => Charset::Iso8859_14,
"iso8859-15" => Charset::Iso8859_15,
"iso8859-2" => Charset::Iso8859_2,
"iso8859-3" => Charset::Iso8859_3,
"iso8859-4" => Charset::Iso8859_4,
"iso8859-5" => Charset::Iso8859_5,
"iso8859-6" => Charset::Iso8859_6,
"iso8859-7" => Charset::Iso8859_7,
"iso8859-8" => Charset::Iso8859_8,
"iso8859-9" => Charset::Windows1254,
"iso88591" => Charset::Windows1252,
"iso885910" => Charset::Iso8859_10,
"iso885911" => Charset::Windows874,
"iso885913" => Charset::Iso8859_13,
"iso885914" => Charset::Iso8859_14,
"iso885915" => Charset::Iso8859_15,
"iso88592" => Charset::Iso8859_2,
"iso88593" => Charset::Iso8859_3,
"iso88594" => Charset::Iso8859_4,
"iso88595" => Charset::Iso8859_5,
"iso88596" => Charset::Iso8859_6,
"iso88597" => Charset::Iso8859_7,
"iso88598" => Charset::Iso8859_8,
"iso88599" => Charset::Windows1254,
"iso8859_1" => Charset::Windows1252,
"iso8859_10" => Charset::Iso8859_10,
"iso8859_11" => Charset::Windows874,
"iso8859_13" => Charset::Iso8859_13,
"iso8859_14" => Charset::Iso8859_14,
"iso8859_15" => Charset::Iso8859_15,
"iso8859_2" => Charset::Iso8859_2,
"iso8859_3" => Charset::Iso8859_3,
"iso8859_4" => Charset::Iso8859_4,
"iso8859_5" => Charset::Iso8859_5,
"iso8859_6" => Charset::Iso8859_6,
"iso8859_7" => Charset::Iso8859_7,
"iso8859_8" => Charset::Iso8859_8,
"iso8859_9" => Charset::Windows1254,
"iso_10646-ucs-2" => Charset::Utf16,
"iso_10646-ucs_2" => Charset::Utf16,
"iso_10646_ucs-2" => Charset::Utf16,
"iso_10646_ucs_2" => Charset::Utf16,
"iso_2022-cn" => Charset::Replacement,
"iso_2022-cn-ext" => Charset::Replacement,
"iso_2022-cn_ext" => Charset::Replacement,
"iso_2022-jp" => Charset::Iso2022Jp,
"iso_2022-kr" => Charset::Replacement,
"iso_2022_cn" => Charset::Replacement,
"iso_2022_cn-ext" => Charset::Replacement,
"iso_2022_cn_ext" => Charset::Replacement,
"iso_2022_jp" => Charset::Iso2022Jp,
"iso_2022_kr" => Charset::Replacement,
"iso_8859-1" => Charset::Windows1252,
"iso_8859-10" => Charset::Iso8859_10,
"iso_8859-10:1992" => Charset::Iso8859_10,
"iso_8859-11" => Charset::Windows874,
"iso_8859-13" => Charset::Iso8859_13,
"iso_8859-14" => Charset::Iso8859_14,
"iso_8859-14:1998" => Charset::Iso8859_14,
"iso_8859-15" => Charset::Iso8859_15,
"iso_8859-16" => Charset::Iso8859_16,
"iso_8859-16:2001" => Charset::Iso8859_16,
"iso_8859-1:1987" => Charset::Windows1252,
"iso_8859-2" => Charset::Iso8859_2,
"iso_8859-2:1987" => Charset::Iso8859_2,
"iso_8859-3" => Charset::Iso8859_3,
"iso_8859-3:1988" => Charset::Iso8859_3,
"iso_8859-4" => Charset::Iso8859_4,
"iso_8859-4:1988" => Charset::Iso8859_4,
"iso_8859-5" => Charset::Iso8859_5,
"iso_8859-5:1988" => Charset::Iso8859_5,
"iso_8859-6" => Charset::Iso8859_6,
"iso_8859-6-e" => Charset::Iso8859_6,
"iso_8859-6-i" => Charset::Iso8859_6,
"iso_8859-6:1987" => Charset::Iso8859_6,
"iso_8859-6_e" => Charset::Iso8859_6,
"iso_8859-6_i" => Charset::Iso8859_6,
"iso_8859-7" => Charset::Iso8859_7,
"iso_8859-7:1987" => Charset::Iso8859_7,
"iso_8859-8" => Charset::Iso8859_8,
"iso_8859-8-e" => Charset::Iso8859_8,
"iso_8859-8-i" => Charset::Iso8859_8,
"iso_8859-8:1988" => Charset::Iso8859_8,
"iso_8859-8_e" => Charset::Iso8859_8,
"iso_8859-8_i" => Charset::Iso8859_8,
"iso_8859-9" => Charset::Windows1254,
"iso_8859-9:1989" => Charset::Windows1254,
"iso_8859_1" => Charset::Windows1252,
"iso_8859_10" => Charset::Iso8859_10,
"iso_8859_10:1992" => Charset::Iso8859_10,
"iso_8859_11" => Charset::Windows874,
"iso_8859_13" => Charset::Iso8859_13,
"iso_8859_14" => Charset::Iso8859_14,
"iso_8859_14:1998" => Charset::Iso8859_14,
"iso_8859_15" => Charset::Iso8859_15,
"iso_8859_16" => Charset::Iso8859_16,
"iso_8859_16:2001" => Charset::Iso8859_16,
"iso_8859_1:1987" => Charset::Windows1252,
"iso_8859_2" => Charset::Iso8859_2,
"iso_8859_2:1987" => Charset::Iso8859_2,
"iso_8859_3" => Charset::Iso8859_3,
"iso_8859_3:1988" => Charset::Iso8859_3,
"iso_8859_4" => Charset::Iso8859_4,
"iso_8859_4:1988" => Charset::Iso8859_4,
"iso_8859_5" => Charset::Iso8859_5,
"iso_8859_5:1988" => Charset::Iso8859_5,
"iso_8859_6" => Charset::Iso8859_6,
"iso_8859_6-e" => Charset::Iso8859_6,
"iso_8859_6-i" => Charset::Iso8859_6,
"iso_8859_6:1987" => Charset::Iso8859_6,
"iso_8859_6_e" => Charset::Iso8859_6,
"iso_8859_6_i" => Charset::Iso8859_6,
"iso_8859_7" => Charset::Iso8859_7,
"iso_8859_7:1987" => Charset::Iso8859_7,
"iso_8859_8" => Charset::Iso8859_8,
"iso_8859_8-e" => Charset::Iso8859_8,
"iso_8859_8-i" => Charset::Iso8859_8,
"iso_8859_8:1988" => Charset::Iso8859_8,
"iso_8859_8_e" => Charset::Iso8859_8,
"iso_8859_8_i" => Charset::Iso8859_8,
"iso_8859_9" => Charset::Windows1254,
"iso_8859_9:1989" => Charset::Windows1254,
"iso_celtic" => Charset::Iso8859_14,
"iso_ir-100" => Charset::Windows1252,
"iso_ir-101" => Charset::Iso8859_2,
"iso_ir-109" => Charset::Iso8859_3,
"iso_ir-110" => Charset::Iso8859_4,
"iso_ir-126" => Charset::Iso8859_7,
"iso_ir-127" => Charset::Iso8859_6,
"iso_ir-138" => Charset::Iso8859_8,
"iso_ir-144" => Charset::Iso8859_5,
"iso_ir-148" => Charset::Windows1254,
"iso_ir-149" => Charset::EucKr,
"iso_ir-157" => Charset::Iso8859_10,
"iso_ir-199" => Charset::Iso8859_14,
"iso_ir-226" => Charset::Iso8859_16,
"iso_ir-58" => Charset::Gbk,
"iso_ir_100" => Charset::Windows1252,
"iso_ir_101" => Charset::Iso8859_2,
"iso_ir_109" => Charset::Iso8859_3,
"iso_ir_110" => Charset::Iso8859_4,
"iso_ir_126" => Charset::Iso8859_7,
"iso_ir_127" => Charset::Iso8859_6,
"iso_ir_138" => Charset::Iso8859_8,
"iso_ir_144" => Charset::Iso8859_5,
"iso_ir_148" => Charset::Windows1254,
"iso_ir_149" => Charset::EucKr,
"iso_ir_157" => Charset::Iso8859_10,
"iso_ir_199" => Charset::Iso8859_14,
"iso_ir_226" => Charset::Iso8859_16,
"iso_ir_58" => Charset::Gbk,
"koi" => Charset::Koi8R,
"koi8" => Charset::Koi8R,
"koi8-r" => Charset::Koi8R,
"koi8-ru" => Charset::Koi8U,
"koi8-u" => Charset::Koi8U,
"koi8_r" => Charset::Koi8R,
"koi8_ru" => Charset::Koi8U,
"koi8_u" => Charset::Koi8U,
"korean" => Charset::EucKr,
"ks-c-5601-1987" => Charset::EucKr,
"ks-c-5601-1989" => Charset::EucKr,
"ks-c-5601_1987" => Charset::EucKr,
"ks-c-5601_1989" => Charset::EucKr,
"ks-c_5601-1987" => Charset::EucKr,
"ks-c_5601-1989" => Charset::EucKr,
"ks-c_5601_1987" => Charset::EucKr,
"ks-c_5601_1989" => Charset::EucKr,
"ks_c-5601-1987" => Charset::EucKr,
"ks_c-5601-1989" => Charset::EucKr,
"ks_c-5601_1987" => Charset::EucKr,
"ks_c-5601_1989" => Charset::EucKr,
"ks_c_5601-1987" => Charset::EucKr,
"ks_c_5601-1989" => Charset::EucKr,
"ks_c_5601_1987" => Charset::EucKr,
"ks_c_5601_1989" => Charset::EucKr,
"ksc-5601" => Charset::EucKr,
"ksc5601" => Charset::EucKr,
"ksc_5601" => Charset::EucKr,
"l1" => Charset::Windows1252,
"l10" => Charset::Iso8859_16,
"l2" => Charset::Iso8859_2,
"l3" => Charset::Iso8859_3,
"l4" => Charset::Iso8859_4,
"l5" => Charset::Windows1254,
"l6" => Charset::Iso8859_10,
"l8" => Charset::Iso8859_14,
"l9" => Charset::Iso8859_15,
"latin-9" => Charset::Iso8859_15,
"latin1" => Charset::Windows1252,
"latin10" => Charset::Iso8859_16,
"latin2" => Charset::Iso8859_2,
"latin3" => Charset::Iso8859_3,
"latin4" => Charset::Iso8859_4,
"latin5" => Charset::Windows1254,
"latin6" => Charset::Iso8859_10,
"latin8" => Charset::Iso8859_14,
"latin_9" => Charset::Iso8859_15,
"logical" => Charset::Iso8859_8,
"mac" => Charset::Macintosh,
"macintosh" => Charset::Macintosh,
"ms-kanji" => Charset::ShiftJis,
"ms932" => Charset::ShiftJis,
"ms936" => Charset::Gbk,
"ms_kanji" => Charset::ShiftJis,
"replacement" => Charset::Replacement,
"shift-jis" => Charset::ShiftJis,
"shift_jis" => Charset::ShiftJis,
"sjis" => Charset::ShiftJis,
"sun-eu-greek" => Charset::Iso8859_7,
"sun-eu_greek" => Charset::Iso8859_7,
"sun_eu-greek" => Charset::Iso8859_7,
"sun_eu_greek" => Charset::Iso8859_7,
"tis-620" => Charset::Windows874,
"tis_620" => Charset::Windows874,
"ucs-2" => Charset::Utf16,
"ucs_2" => Charset::Utf16,
"uhc" => Charset::EucKr,
"unicode" => Charset::Utf16,
"unicode-1-1-utf-8" => Charset::Utf8,
"unicode-1-1-utf_8" => Charset::Utf8,
"unicode-1-1_utf-8" => Charset::Utf8,
"unicode-1-1_utf_8" => Charset::Utf8,
"unicode-1_1-utf-8" => Charset::Utf8,
"unicode-1_1-utf_8" => Charset::Utf8,
"unicode-1_1_utf-8" => Charset::Utf8,
"unicode-1_1_utf_8" => Charset::Utf8,
"unicode11utf8" => Charset::Utf8,
"unicode20utf8" => Charset::Utf8,
"unicode_1-1-utf-8" => Charset::Utf8,
"unicode_1-1-utf_8" => Charset::Utf8,
"unicode_1-1_utf-8" => Charset::Utf8,
"unicode_1-1_utf_8" => Charset::Utf8,
"unicode_1_1-utf-8" => Charset::Utf8,
"unicode_1_1-utf_8" => Charset::Utf8,
"unicode_1_1_utf-8" => Charset::Utf8,
"unicode_1_1_utf_8" => Charset::Utf8,
"unicodefeff" => Charset::Utf16,
"unicodefffe" => Charset::Utf16Be,
"us-ascii" => Charset::Windows1252,
"us_ascii" => Charset::Windows1252,
"utf-16" => Charset::Utf16,
"utf-16be" => Charset::Utf16Be,
"utf-16le" => Charset::Utf16Le,
"utf-7" => Charset::Utf7,
"utf-8" => Charset::Utf8,
"utf8" => Charset::Utf8,
"utf_16" => Charset::Utf16,
"utf_16be" => Charset::Utf16Be,
"utf_16le" => Charset::Utf16Le,
"utf_7" => Charset::Utf7,
"utf_8" => Charset::Utf8,
"visual" => Charset::Iso8859_8,
"windows-1250" => Charset::Windows1250,
"windows-1251" => Charset::Windows1251,
"windows-1252" => Charset::Windows1252,
"windows-1253" => Charset::Windows1253,
"windows-1254" => Charset::Windows1254,
"windows-1255" => Charset::Windows1255,
"windows-1256" => Charset::Windows1256,
"windows-1257" => Charset::Windows1257,
"windows-1258" => Charset::Windows1258,
"windows-31j" => Charset::ShiftJis,
"windows-874" => Charset::Windows874,
"windows-936" => Charset::Gbk,
"windows-949" => Charset::EucKr,
"windows_1250" => Charset::Windows1250,
"windows_1251" => Charset::Windows1251,
"windows_1252" => Charset::Windows1252,
"windows_1253" => Charset::Windows1253,
"windows_1254" => Charset::Windows1254,
"windows_1255" => Charset::Windows1255,
"windows_1256" => Charset::Windows1256,
"windows_1257" => Charset::Windows1257,
"windows_1258" => Charset::Windows1258,
"windows_31j" => Charset::ShiftJis,
"windows_874" => Charset::Windows874,
"windows_936" => Charset::Gbk,
"windows_949" => Charset::EucKr,
"x-cp1250" => Charset::Windows1250,
"x-cp1251" => Charset::Windows1251,
"x-cp1252" => Charset::Windows1252,
"x-cp1253" => Charset::Windows1253,
"x-cp1254" => Charset::Windows1254,
"x-cp1255" => Charset::Windows1255,
"x-cp1256" => Charset::Windows1256,
"x-cp1257" => Charset::Windows1257,
"x-cp1258" => Charset::Windows1258,
"x-euc-jp" => Charset::EucJp,
"x-euc_jp" => Charset::EucJp,
"x-gbk" => Charset::Gbk,
"x-mac-cyrillic" => Charset::XMacCyrillic,
"x-mac-roman" => Charset::Macintosh,
"x-mac-ukrainian" => Charset::XMacCyrillic,
"x-mac_cyrillic" => Charset::XMacCyrillic,
"x-mac_roman" => Charset::Macintosh,
"x-mac_ukrainian" => Charset::XMacCyrillic,
"x-sjis" => Charset::ShiftJis,
"x-unicode20utf8" => Charset::Utf8,
"x-user-defined" => Charset::XUserDefined,
"x-user_defined" => Charset::XUserDefined,
"x-windows-949" => Charset::EucKr,
"x-windows_949" => Charset::EucKr,
"x-x-big5" => Charset::Big5,
"x-x_big5" => Charset::Big5,
"x_cp1250" => Charset::Windows1250,
"x_cp1251" => Charset::Windows1251,
"x_cp1252" => Charset::Windows1252,
"x_cp1253" => Charset::Windows1253,
"x_cp1254" => Charset::Windows1254,
"x_cp1255" => Charset::Windows1255,
"x_cp1256" => Charset::Windows1256,
"x_cp1257" => Charset::Windows1257,
"x_cp1258" => Charset::Windows1258,
"x_euc-jp" => Charset::EucJp,
"x_euc_jp" => Charset::EucJp,
"x_gbk" => Charset::Gbk,
"x_mac-cyrillic" => Charset::XMacCyrillic,
"x_mac-roman" => Charset::Macintosh,
"x_mac-ukrainian" => Charset::XMacCyrillic,
"x_mac_cyrillic" => Charset::XMacCyrillic,
"x_mac_roman" => Charset::Macintosh,
"x_mac_ukrainian" => Charset::XMacCyrillic,
"x_sjis" => Charset::ShiftJis,
"x_unicode20utf8" => Charset::Utf8,
"x_user-defined" => Charset::XUserDefined,
"x_user_defined" => Charset::XUserDefined,
"x_windows-949" => Charset::EucKr,
"x_windows_949" => Charset::EucKr,
"x_x-big5" => Charset::Big5,
"x_x_big5" => Charset::Big5,
)
.copied()
}