/** Lexical compare routine.
*
* Performs a lexical string compare on two normalized UTF-8 strings as
* described in RFC 2608, section 6.4.
*
* @param[in] str1 - A pointer to string to be compared.
* @param[in] str2 - A pointer to string to be compared.
* @param[in] length - The maximum length to compare in bytes.
*
* @return Zero if @p str1 is equal to @p str2, less than zero if @p str1
* is greater than @p str2, greater than zero if @p str1 is less than
* @p str2.
*/
static int SLPCompareNormalizedString(const char * str1,
const char * str2, size_t length)
{
#ifdef HAVE_ICU
int result;
UErrorCode uerr = 0;
UChar * ustr1 = xmalloc((length + 1) * sizeof(UChar));
UChar * ustr2 = xmalloc((length + 1) * sizeof(UChar));
if (ustr1 && ustr2)
{
u_strFromUTF8(ustr1, (int32_t)length + 1, 0, str1,
(int32_t)length, &uerr);
u_strFromUTF8(ustr2, (int32_t)length + 1, 0, str2,
(int32_t)length, &uerr);
}
if (ustr1 != 0 && ustr2 != 0 && uerr == 0)
result = (int)u_strncasecmp(ustr1, ustr2, (int32_t)length, 0);
else
result = strncasecmp(str1, str2, length);
xfree(ustr1);
xfree(ustr2);
return result;
#else
return strncasecmp(str1, str2, length);
#endif /* HAVE_ICU */
}
static void
TestCaseCompare(void) {
static const UChar
mixed[]= { 0x61, 0x42, 0x131, 0x3a3, 0xdf, 0xfb03, 0xd93f, 0xdfff, 0 },
otherDefault[]= { 0x41, 0x62, 0x131, 0x3c3, 0x73, 0x53, 0x46, 0x66, 0x49, 0xd93f, 0xdfff, 0 },
otherExcludeSpecialI[]={ 0x41, 0x62, 0x131, 0x3c3, 0x53, 0x73, 0x66, 0x46, 0x69, 0xd93f, 0xdfff, 0 },
different[]= { 0x41, 0x62, 0x131, 0x3c3, 0x73, 0x53, 0x46, 0x66, 0x49, 0xd93f, 0xdffd, 0 };
UVersionInfo unicodeVersion={ 0, 0, 17, 89 }, unicode_3_1={ 3, 1, 0, 0 };
int32_t result, lenMixed, lenOtherDefault, lenOtherExcludeSpecialI, lenDifferent;
UErrorCode errorCode;
UBool isUnicode_3_1;
errorCode=U_ZERO_ERROR;
lenMixed=u_strlen(mixed);
lenOtherDefault=u_strlen(otherDefault);
(void)lenOtherDefault; /* Suppress set but not used warning. */
lenOtherExcludeSpecialI=u_strlen(otherExcludeSpecialI);
lenDifferent=u_strlen(different);
/* if unicodeVersion()>=3.1 then test exclude-special-i cases as well */
u_getUnicodeVersion(unicodeVersion);
isUnicode_3_1= uprv_memcmp(unicodeVersion, unicode_3_1, 4)>=0;
(void)isUnicode_3_1; /* Suppress set but not used warning. */
/* test u_strcasecmp() */
result=u_strcasecmp(mixed, otherDefault, U_FOLD_CASE_DEFAULT);
if(result!=0) {
log_err("error: u_strcasecmp(mixed, other, default)=%ld instead of 0\n", result);
}
result=u_strCaseCompare(mixed, -1, otherDefault, -1, U_FOLD_CASE_DEFAULT, &errorCode);
if(result!=0) {
log_err("error: u_strCaseCompare(mixed, other, default)=%ld instead of 0\n", result);
}
/* test u_strcasecmp() - exclude special i */
result=u_strcasecmp(mixed, otherExcludeSpecialI, U_FOLD_CASE_EXCLUDE_SPECIAL_I);
if(result!=0) {
log_err("error: u_strcasecmp(mixed, other, exclude special i)=%ld instead of 0\n", result);
}
result=u_strCaseCompare(mixed, lenMixed, otherExcludeSpecialI, lenOtherExcludeSpecialI, U_FOLD_CASE_EXCLUDE_SPECIAL_I, &errorCode);
if(result!=0) {
log_err("error: u_strCaseCompare(mixed, other, exclude special i)=%ld instead of 0\n", result);
}
/* test u_strcasecmp() */
result=u_strcasecmp(mixed, different, U_FOLD_CASE_DEFAULT);
if(result<=0) {
log_err("error: u_strcasecmp(mixed, different, default)=%ld instead of positive\n", result);
}
result=u_strCaseCompare(mixed, -1, different, lenDifferent, U_FOLD_CASE_DEFAULT, &errorCode);
if(result<=0) {
log_err("error: u_strCaseCompare(mixed, different, default)=%ld instead of positive\n", result);
}
/* test u_strncasecmp() - stop before the sharp s (U+00df) */
result=u_strncasecmp(mixed, different, 4, U_FOLD_CASE_DEFAULT);
if(result!=0) {
log_err("error: u_strncasecmp(mixed, different, 4, default)=%ld instead of 0\n", result);
}
result=u_strCaseCompare(mixed, 4, different, 4, U_FOLD_CASE_DEFAULT, &errorCode);
if(result!=0) {
log_err("error: u_strCaseCompare(mixed, 4, different, 4, default)=%ld instead of 0\n", result);
}
/* test u_strncasecmp() - stop in the middle of the sharp s (U+00df) */
result=u_strncasecmp(mixed, different, 5, U_FOLD_CASE_DEFAULT);
if(result<=0) {
log_err("error: u_strncasecmp(mixed, different, 5, default)=%ld instead of positive\n", result);
}
result=u_strCaseCompare(mixed, 5, different, 5, U_FOLD_CASE_DEFAULT, &errorCode);
if(result<=0) {
log_err("error: u_strCaseCompare(mixed, 5, different, 5, default)=%ld instead of positive\n", result);
}
/* test u_memcasecmp() - stop before the sharp s (U+00df) */
result=u_memcasecmp(mixed, different, 4, U_FOLD_CASE_DEFAULT);
if(result!=0) {
log_err("error: u_memcasecmp(mixed, different, 4, default)=%ld instead of 0\n", result);
}
/* test u_memcasecmp() - stop in the middle of the sharp s (U+00df) */
result=u_memcasecmp(mixed, different, 5, U_FOLD_CASE_DEFAULT);
if(result<=0) {
log_err("error: u_memcasecmp(mixed, different, 5, default)=%ld instead of positive\n", result);
}
}