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bug#33053: scm_i_mirror_backslashes assumes ASCII-compatible locale enco
Mark H Weaver
bug#33053: scm_i_mirror_backslashes assumes ASCII-compatible locale encoding
Fri, 19 Oct 2018 21:21:49 -0400
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)
tags 33053 + notabug
Mark H Weaver <address@hidden> writes:
> Mark H Weaver <address@hidden> writes:
>> The 'scm_i_mirror_backslashes' in load.c operates on C strings in the
>> locale encoding, and assumes that the locale encoding is ASCII
>> compatible. In the Shift_JIS encoding, used in the "JP_jp.sjis" locale,
>> backslash '\' is mapped to a multibyte character, and the Yen sign '¥'
>> is represented using code 0x5C, the same code as backslash '\' in ASCII.
>> As a result, users of the "JP_jp.sjis" locale will have Yen signs '¥' in
>> their file names converted into slashes by this function.
> I miswrote the locale name above. The locale name is "ja_JP.sjis".
It seems that I was mistaken in my assumption that '\' is mapped to a
multibyte character in Shift_JIS. According to John Cowan, "the
character at #\x5C is *functionally* a backslash that is *displayed* as
a yen sign".
It seems that this is not actually a bug in 'scm_i_mirror_backslashes',
so I'm closing this bug.