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locales: Fix eucJP sorting (broken upstream?)

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Sorting eucJP text with "sort" resulted in an illegal sequence while
"gsort" worked.  This was traced back to mbrtowc handling which was
broken for eucJP (probably eucCN, eucKR, and eucTW as well).  This
small fix took hours to figure out.  The OR operation to build the
wide character requires an unsigned character to work correctly.  The
euc wcrtowc conversion is probably broken upstream in Illumos as well.

Triggered by: misc/freebsd-doc-ja in ports (encoded in eucJP)

Submitted by:	marino
Obtained from:	DragonflyBSD
This commit is contained in:
Baptiste Daroussin 2015-11-01 21:02:30 +00:00
parent d79cdd21de
commit d8ed03efe5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/collation/; revision=290240
1 changed files with 4 additions and 3 deletions
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7
lib/libc/locale/euc.c
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@ -317,8 +317,8 @@ _EUC_mbrtowc_impl(wchar_t * __restrict pwc, const char * __restrict s,
{
_EucState *es;
int i, want;
wchar_t wc;
unsigned char ch;
wchar_t wc = 0;
unsigned char ch, chs;
es = (_EucState *)ps;
@ -367,7 +367,8 @@ _EUC_mbrtowc_impl(wchar_t * __restrict pwc, const char * __restrict s,
for (i = 0; i < MIN(want, n); i++) {
wc <<= 8;
wc |= *s;
chs = *s;
wc |= chs;
s++;
}
if (i < want) {