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lib/icu/Collate: use LCMapStringEx() on Windows

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This commit is contained in:
Max Kellermann 2015-06-27 15:52:37 +02:00
parent e1e365e16e
commit fb3564fbe7
1 changed files with 29 additions and 0 deletions
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29
src/lib/icu/Collate.cxx
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@ -172,6 +172,35 @@ IcuCaseFold(const char *src)
auto result = UCharToUTF8({folded, folded_length});
delete[] folded;
return result;
#elif defined(WIN32)
const auto u = MultiByteToWideChar(CP_UTF8, src);
if (u.IsNull())
return AllocatedString<>::Duplicate(src);
const int size = LCMapStringEx(LOCALE_NAME_INVARIANT,
LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
u.c_str(), -1, nullptr, 0,
nullptr, nullptr, 0);
if (size <= 0)
return AllocatedString<>::Duplicate(src);
auto buffer = new wchar_t[size];
if (LCMapStringEx(LOCALE_NAME_INVARIANT,
LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
u.c_str(), -1, buffer, size,
nullptr, nullptr, 0) <= 0) {
delete[] buffer;
return AllocatedString<>::Duplicate(src);
}
auto result = WideCharToMultiByte(CP_UTF8, buffer);
delete[] buffer;
if (result.IsNull())
return AllocatedString<>::Duplicate(src);
return result;
#elif defined(HAVE_GLIB)
char *tmp = g_utf8_casefold(src, -1);
auto result = AllocatedString<>::Duplicate(tmp);