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refactor: deduplicate charset encode/decode into shared lookup map #213
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Merged
nakagami
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nakagami:master
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AnyCPU:feature/charset_encode_decode_1
Mar 10, 2026
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−232
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package firebirdsql | ||
|
|
||
| import ( | ||
| "golang.org/x/text/encoding" | ||
| "golang.org/x/text/encoding/charmap" | ||
| "golang.org/x/text/encoding/japanese" | ||
| "golang.org/x/text/encoding/korean" | ||
| "golang.org/x/text/encoding/simplifiedchinese" | ||
| "golang.org/x/text/encoding/traditionalchinese" | ||
| ) | ||
|
|
||
| func charsetEncoding(charset string) encoding.Encoding { | ||
| switch charset { | ||
| case "SJIS_0208": | ||
| return japanese.ShiftJIS | ||
| case "EUCJ_0208": | ||
| return japanese.EUCJP | ||
| case "ISO8859_1": | ||
| return charmap.ISO8859_1 | ||
| case "ISO8859_2": | ||
| return charmap.ISO8859_2 | ||
| case "ISO8859_3": | ||
| return charmap.ISO8859_3 | ||
| case "ISO8859_4": | ||
| return charmap.ISO8859_4 | ||
| case "ISO8859_5": | ||
| return charmap.ISO8859_5 | ||
| case "ISO8859_6": | ||
| return charmap.ISO8859_6 | ||
| case "ISO8859_7": | ||
| return charmap.ISO8859_7 | ||
| case "ISO8859_8": | ||
| return charmap.ISO8859_8 | ||
| case "ISO8859_9": | ||
| return charmap.ISO8859_9 | ||
| case "ISO8859_13": | ||
| return charmap.ISO8859_13 | ||
| case "KSC_5601": | ||
| return korean.EUCKR | ||
| case "WIN1250": | ||
| return charmap.Windows1250 | ||
| case "WIN1251": | ||
| return charmap.Windows1251 | ||
| case "WIN1252": | ||
| return charmap.Windows1252 | ||
| case "WIN1253": | ||
| return charmap.Windows1253 | ||
| case "WIN1254": | ||
| return charmap.Windows1254 | ||
| case "BIG_5": | ||
| return traditionalchinese.Big5 | ||
| case "GB_2312": | ||
| return simplifiedchinese.HZGB2312 | ||
| case "WIN1255": | ||
| return charmap.Windows1255 | ||
| case "WIN1256": | ||
| return charmap.Windows1256 | ||
| case "WIN1257": | ||
| return charmap.Windows1257 | ||
| case "KOI8R": | ||
| return charmap.KOI8R | ||
| case "KOI8U": | ||
| return charmap.KOI8U | ||
| case "WIN1258": | ||
| return charmap.Windows1258 | ||
| default: | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| func decodeCharset(raw []byte, charset string) (string, bool) { | ||
| enc := charsetEncoding(charset) | ||
| if enc == nil { | ||
| return "", false | ||
| } | ||
|
Comment on lines
+71
to
+75
|
||
| v, _ := enc.NewDecoder().Bytes(raw) | ||
| return string(v), true | ||
| } | ||
|
|
||
| func encodeCharset(str string, charset string) (string, bool) { | ||
| enc := charsetEncoding(charset) | ||
| if enc == nil { | ||
| return "", false | ||
| } | ||
| v, _ := enc.NewEncoder().String(str) | ||
| return v, true | ||
| } | ||
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New file
charset.gois missing the repository’s standard MIT license header comment block that appears at the top of most non-test.gofiles (e.g.,xsqlvar.go,wireprotocol.go). Please add the same header here to keep file headers consistent.