gh-62259: Add support of multi-byte encodings in the XML parser#149860
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serhiy-storchaka merged 5 commits intoMay 26, 2026
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Supported encodings: "cp932", "cp949", "cp950", "Big5","EUC-JP", "GB2312", "GBK", "johab", and "Shift_JIS". Partially supported encodings (only BMP characters): "Big5-HKSCS", "EUC_JIS-2004", "EUC_JISX0213", "Shift_JIS-2004", "Shift_JISX0213", "utf-8-sig" and non-standard aliases like "UTF8" (without hyphen). The parser now raises ValueError for known unsupported multi-byte encodings such us "ISO-2022-JP" or "raw-unicode-escape" instead of failing later, when encounter non-ASCII data.
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malemburg
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May 15, 2026
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malemburg
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LGTM.
The only detail that is missing is the documentation update. This still reads "UTF-8, UTF-16, ISO-8859-1 (Latin1), and ASCII" which already appears to be out of date.
| *encoding* [1]_ is given it will override the implicit or explicit encoding of the | ||
| document. | ||
| must be a string naming the encoding used by the XML data. | ||
| Expat natively understands and processes UTF-8, UTF-16, UTF-16BE, UTF-16LE, |
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I think this should be an .. impl-detail (I don't remember the exact name)?
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Supported encodings: "cp932", "cp949", "cp950", "Big5","EUC-JP", "GB2312", "GBK", "johab", and "Shift_JIS".
Partially supported encodings (only BMP characters): "Big5-HKSCS", "EUC_JIS-2004", "EUC_JISX0213", "Shift_JIS-2004", "Shift_JISX0213", "utf-8-sig" and non-standard aliases like "UTF8" (without hyphen).
The parser now raises ValueError for known unsupported multi-byte encodings such us "ISO-2022-JP" or "raw-unicode-escape" instead of failing later, when encounter non-ASCII data.