nikhil1511 opened a new issue, #1514: URL: https://github.com/apache/poi/issues/1514
### Description `CodePageUtil.codepageToEncoding` maps Windows code pages `932` (`CP_SJIS`) and `950` to non-Microsoft character tables in OpenJDK: 1. **Code page 932 (Japanese, `LocaleID.JA_JP`)**: `case CP_SJIS:` returns `"SJIS"`, which resolves to `Shift_JIS` (strict JIS X 0208) rather than IANA `Windows-31J` (`windows-31j` / `MS932`). Windows code page 932 includes NEC special characters (row 13, such as `①` at `0x8740` and `㈱`) and NEC-selected IBM extensions (rows 89–92, such as `髙` at `0xFBFC`), and maps several symbols (such as `～` `0x8160` -> `U+FF5E`) differently from strict `Shift_JIS`. Note that Mac Japanese (`CP_MAC_JAPAN = 10001`) has its own separate `case CP_MAC_JAPAN:` returning `"SJIS"`. 2. **Code page 950 (Traditional Chinese, `LocaleID.ZH_TW` / `LocaleID.ZH_HK`)**: has no explicit `case`, so `default:` returns `"cp950"`. In OpenJDK, `"cp950"` is an alias for `x-IBM950` (IBM's Big5 variant) rather than Microsoft's code page 950 (`x-windows-950` / `MS950`), leaving Microsoft Big5 characters such as `╭` (`0xA27E`), `€` (`0xA3E1`), and `裏` unmapped or mapped differently. By contrast, `CodePageUtil` already maps the other two Windows East Asian DBCS code pages to their Microsoft variants (`CP_GBK = 936` -> `"GBK"` and `CP_MS949 = 949` -> `"ms949"`), and HWPF's `DoubleByteUtil` / `LittleEndianCP950Reader` likewise documents code page 950 as Microsoft's Big5 dialect. ### Expected behavior - `CodePageUtil.codepageToEncoding(932, javaLangFormat)` returns `"MS932"` when `javaLangFormat` is `true` and `"windows-31j"` when `false`. - `CodePageUtil.codepageToEncoding(950, javaLangFormat)` returns `"MS950"` when `javaLangFormat` is `true` and `"x-windows-950"` when `false`. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
