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ICU-3748 patch LocaleUtility::canonicalLocaleString to work *a little* better -- temporary fix!

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X-SVN-Rev: 15421
This commit is contained in:
Alan Liu 2004-05-20 03:51:02 +00:00
parent 6649d6d238
commit 8f6fe7cb59
1 changed files with 51 additions and 3 deletions
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54
icu4c/source/common/iculserv.cpp
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@ -24,6 +24,8 @@ U_NAMESPACE_BEGIN
static Hashtable * LocaleUtility_cache = NULL;
#define UNDERSCORE_CHAR ((UChar)0x005f)
#define AT_SIGN_CHAR ((UChar)64)
#define PERIOD_CHAR ((UChar)46)
/*
******************************************************************
@ -35,11 +37,26 @@ LocaleUtility::canonicalLocaleString(const UnicodeString* id, UnicodeString& res
if (id == NULL) {
result.setToBogus();
} else {
// Fix case only (no other changes) up to the first '@' or '.' or
// end of string, whichever comes first. In 3.0 I changed this to
// stop at first '@' or '.'. It used to run out to the end of
// string. My fix makes the tests pass but is probably
// structurally incorrect. See below. [alan 3.0]
// TODO: Doug, you might want to revise this...
result = *id;
int32_t i = 0;
int32_t n = result.indexOf(UNDERSCORE_CHAR);
int32_t end = result.indexOf(AT_SIGN_CHAR);
int32_t n = result.indexOf(PERIOD_CHAR);
if (n >= 0 && n < end) {
end = n;
}
if (end < 0) {
end = result.length();
}
n = result.indexOf(UNDERSCORE_CHAR);
if (n < 0) {
n = result.length();
n = end;
}
for (; i < n; ++i) {
UChar c = result.charAt(i);
@ -48,7 +65,7 @@ LocaleUtility::canonicalLocaleString(const UnicodeString* id, UnicodeString& res
result.setCharAt(i, c);
}
}
for (n = result.length(); i < n; ++i) {
for (n = end; i < n; ++i) {
UChar c = result.charAt(i);
if (c >= 0x0061 && c <= 0x007a) {
c -= 0x20;
@ -57,6 +74,37 @@ LocaleUtility::canonicalLocaleString(const UnicodeString* id, UnicodeString& res
}
}
return result;
#if 0
// This code does a proper full level 2 canonicalization of id.
// It's nasty to go from UChar to char to char to UChar -- but
// that's what you have to do to use the uloc_canonicalize
// function on UnicodeStrings.
// I ended up doing the alternate fix (see above) not for
// performance reasons, although performance will certainly be
// better, but because doing a full level 2 canonicalization
// causes some tests to fail. [alan 3.0]
// TODO: Doug, you might want to revisit this...
result.setToBogus();
if (id != 0) {
int32_t buflen = id->length() + 8; // space for NUL
char* buf = (char*) uprv_malloc(buflen);
char* canon = (buf == 0) ? 0 : (char*) uprv_malloc(buflen);
if (buf != 0 && canon != 0) {
U_ASSERT(id->extract(0, INT32_MAX, buf, buflen) < buflen);
UErrorCode ec = U_ZERO_ERROR;
uloc_canonicalize(buf, canon, buflen, &ec);
if (U_SUCCESS(ec)) {
result = UnicodeString(canon);
}
}
uprv_free(buf);
uprv_free(canon);
}
return result;
#endif
}
Locale&