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e662c398d8
If the nl_langinfo(CODESET) function returns an empty string, Python now uses UTF-8 as the filesystem encoding. In May 2010 (commitb744ba1d14), I modified Python to log a warning and use UTF-8 as the filesystem encoding (instead of None) if nl_langinfo(CODESET) returns an empty string. In August 2020 (commit94908bbc15), I modified Python startup to fail with a fatal error and a specific error message if nl_langinfo(CODESET) returns an empty string. The intent was to prevent guessing the encoding and also investigate user configuration where this case happens. In 10 years (2010 to 2020), I saw zero user report about the error message related to nl_langinfo(CODESET) returning an empty string. Today, UTF-8 became the defacto standard and it's safe to make the assumption that the user expects UTF-8. For example, nl_langinfo(CODESET) can return an empty string on macOS if the LC_CTYPE locale is not supported, and UTF-8 is the default encoding on macOS. While this change is likely to not affect anyone in practice, it should make UTF-8 lover happy ;-) Rewrite also the documentation explaining how Python selects the filesystem encoding and error handler.
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#ifndef Py_INTERNAL_FILEUTILS_H
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#define Py_INTERNAL_FILEUTILS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "Py_BUILD_CORE must be defined to include this header"
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#endif
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#include <locale.h> /* struct lconv */
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PyAPI_DATA(int) _Py_HasFileSystemDefaultEncodeErrors;
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PyAPI_FUNC(int) _Py_DecodeUTF8Ex(
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const char *arg,
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Py_ssize_t arglen,
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wchar_t **wstr,
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size_t *wlen,
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const char **reason,
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_Py_error_handler errors);
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PyAPI_FUNC(int) _Py_EncodeUTF8Ex(
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const wchar_t *text,
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char **str,
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size_t *error_pos,
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const char **reason,
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int raw_malloc,
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_Py_error_handler errors);
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PyAPI_FUNC(wchar_t*) _Py_DecodeUTF8_surrogateescape(
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const char *arg,
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Py_ssize_t arglen,
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size_t *wlen);
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PyAPI_FUNC(int) _Py_GetForceASCII(void);
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/* Reset "force ASCII" mode (if it was initialized).
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This function should be called when Python changes the LC_CTYPE locale,
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so the "force ASCII" mode can be detected again on the new locale
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encoding. */
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PyAPI_FUNC(void) _Py_ResetForceASCII(void);
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PyAPI_FUNC(int) _Py_GetLocaleconvNumeric(
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struct lconv *lc,
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PyObject **decimal_point,
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PyObject **thousands_sep);
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PyAPI_FUNC(void) _Py_closerange(int first, int last);
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PyAPI_FUNC(wchar_t*) _Py_GetLocaleEncoding(void);
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PyAPI_FUNC(PyObject*) _Py_GetLocaleEncodingObject(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_FILEUTILS_H */
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