/* {{{ grapheme_intl_case_fold: convert string to lowercase */
void
grapheme_intl_case_fold(UChar** ptr_to_free, UChar **str, int32_t *str_len, UErrorCode *pstatus )
{
UChar *dest;
int32_t dest_len, size_required;
/* allocate a destination string that is a bit larger than the src, hoping that is enough */
#ifdef FULL_CASE_FOLDING
dest_len = (*str_len) + ( *str_len / 10 );
#else
dest_len = (*str_len) + ( *str_len / 10 ) + 1; // assume we have enough for '\0'
#endif /* FULL_CASE_FOLDING */
dest = (UChar*) eumalloc(dest_len);
*pstatus = U_ZERO_ERROR;
#ifdef FULL_CASE_FOLDING
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, INTL_G(turkic_casefolding) ? U_FOLD_CASE_EXCLUDE_SPECIAL_I : U_FOLD_CASE_DEFAULT, pstatus);
#else
size_required = utf16_simple_case_folding(dest, dest_len, *str, *str_len, pstatus);
#endif /* FULL_CASE_FOLDING */
dest_len = size_required;
if ( U_BUFFER_OVERFLOW_ERROR == *pstatus ) {
dest = (UChar*) eurealloc(dest, dest_len);
*pstatus = U_ZERO_ERROR;
#ifdef FULL_CASE_FOLDING
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, INTL_G(turkic_casefolding) ? U_FOLD_CASE_EXCLUDE_SPECIAL_I : U_FOLD_CASE_DEFAULT, pstatus);
#else
size_required = utf16_simple_case_folding(dest, dest_len, *str, *str_len, pstatus);
#endif /* FULL_CASE_FOLDING */
}
if ( U_FAILURE(*pstatus) ) {
return;
}
if ( NULL != ptr_to_free) {
efree(*ptr_to_free);
*ptr_to_free = dest;
}
*str = dest;
*str_len = dest_len;
return;
}
/* {{{ grapheme_intl_case_fold: convert string to lowercase */
void
grapheme_intl_case_fold(UChar** ptr_to_free, UChar **str, int32_t *str_len, UErrorCode *pstatus )
{
UChar *dest;
int32_t dest_len, size_required;
/* allocate a destination string that is a bit larger than the src, hoping that is enough */
dest_len = (*str_len) + ( *str_len / 10 );
dest = (UChar*) eumalloc(dest_len);
*pstatus = U_ZERO_ERROR;
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, U_FOLD_CASE_DEFAULT, pstatus);
dest_len = size_required;
if ( U_BUFFER_OVERFLOW_ERROR == *pstatus ) {
dest = (UChar*) eurealloc(dest, dest_len);
*pstatus = U_ZERO_ERROR;
size_required = u_strFoldCase(dest, dest_len, *str, *str_len, U_FOLD_CASE_DEFAULT, pstatus);
}
if ( U_FAILURE(*pstatus) ) {
return;
}
if ( NULL != ptr_to_free) {
efree(*ptr_to_free);
*ptr_to_free = dest;
}
*str = dest;
*str_len = dest_len;
return;
}
