virtual int32_t move32(int32_t delta, CharacterIterator::EOrigin origin){
switch(origin) {
case kStart:
pos = begin;
if(delta > 0) {
U16_FWD_N(text, pos, end, delta);
}
break;
case kCurrent:
if(delta > 0) {
U16_FWD_N(text, pos, end, delta);
} else {
U16_BACK_N(text, begin, pos, -delta);
}
break;
case kEnd:
pos = end;
if(delta < 0) {
U16_BACK_N(text, begin, pos, -delta);
}
break;
default:
break;
}
return pos;
};
int utf16_cp_to_cu(const UChar *ustring, int32_t ustring_len, long cp_offset, int32_t *cu_offset, UErrorCode *status)
{
if (0 != cp_offset) {
int32_t _cp_count = u_countChar32(ustring, ustring_len);
if (cp_offset < 0) {
if (cp_offset < -_cp_count) {
*status = U_INDEX_OUTOFBOUNDS_ERROR;
return FAILURE;
}
*cu_offset = ustring_len;
U16_BACK_N(ustring, 0, *cu_offset, -cp_offset);
} else {
if (cp_offset >= _cp_count) {
*status = U_INDEX_OUTOFBOUNDS_ERROR;
return FAILURE;
}
U16_FWD_N(ustring, *cu_offset, ustring_len, cp_offset);
}
}
return SUCCESS;
}
static void TestFwdBack(){
static UChar input[]={0x0061, 0xd800, 0xdc00, 0xdbff, 0xdfff, 0x0062, 0xd841, 0xd7ff, 0xd841, 0xdc41, 0xdc00, 0x0000};
static uint16_t fwd_unsafe[] ={1, 3, 5, 6, 8, 10, 11, 12};
static uint16_t fwd_safe[] ={1, 3, 5, 6, 7, 8, 10, 11, 12};
static uint16_t back_unsafe[]={11, 9, 8, 7, 6, 5, 3, 1, 0};
static uint16_t back_safe[] ={11, 10, 8, 7, 6, 5, 3, 1, 0};
static uint16_t Nvalue[]= {0, 1, 2, 3, 1, 2, 1};
static uint16_t fwd_N_unsafe[] ={0, 1, 5, 10, 11};
static uint16_t fwd_N_safe[] ={0, 1, 5, 8, 10, 12, 12}; /*safe macro keeps it at the end of the string */
static uint16_t back_N_unsafe[]={12, 11, 8, 5, 3};
static uint16_t back_N_safe[] ={12, 11, 8, 5, 3, 0, 0};
uint16_t offunsafe=0, offsafe=0;
uint16_t i=0;
while(offunsafe < sizeof(input)/U_SIZEOF_UCHAR){
UTF16_FWD_1_UNSAFE(input, offunsafe);
if(offunsafe != fwd_unsafe[i]){
log_err("ERROR: Forward_unsafe offset expected:%d, Got:%d\n", fwd_unsafe[i], offunsafe);
}
i++;
}
offunsafe=0, offsafe=0;
i=0;
while(offunsafe < sizeof(input)/U_SIZEOF_UCHAR){
U16_FWD_1_UNSAFE(input, offunsafe);
if(offunsafe != fwd_unsafe[i]){
log_err("ERROR: U16_FWD_1_UNSAFE offset expected:%d, Got:%d\n", fwd_unsafe[i], offunsafe);
}
i++;
}
i=0;
while(offsafe < sizeof(input)/U_SIZEOF_UCHAR){
UTF16_FWD_1_SAFE(input, offsafe, sizeof(input)/U_SIZEOF_UCHAR);
if(offsafe != fwd_safe[i]){
log_err("ERROR: Forward_safe offset expected:%d, Got:%d\n", fwd_safe[i], offsafe);
}
i++;
}
i=0;
while(offsafe < sizeof(input)/U_SIZEOF_UCHAR){
U16_FWD_1(input, offsafe, sizeof(input)/U_SIZEOF_UCHAR);
if(offsafe != fwd_safe[i]){
log_err("ERROR: U16_FWD_1 offset expected:%d, Got:%d\n", fwd_safe[i], offsafe);
}
i++;
}
offunsafe=sizeof(input)/U_SIZEOF_UCHAR;
offsafe=sizeof(input)/U_SIZEOF_UCHAR;
i=0;
while(offunsafe > 0){
UTF16_BACK_1_UNSAFE(input, offunsafe);
if(offunsafe != back_unsafe[i]){
log_err("ERROR: Backward_unsafe offset expected:%d, Got:%d\n", back_unsafe[i], offunsafe);
}
i++;
}
offunsafe=sizeof(input)/U_SIZEOF_UCHAR;
offsafe=sizeof(input)/U_SIZEOF_UCHAR;
i=0;
while(offunsafe > 0){
U16_BACK_1_UNSAFE(input, offunsafe);
if(offunsafe != back_unsafe[i]){
log_err("ERROR: U16_BACK_1_UNSAFE offset expected:%d, Got:%d\n", back_unsafe[i], offunsafe);
}
i++;
}
i=0;
while(offsafe > 0){
UTF16_BACK_1_SAFE(input,0, offsafe);
if(offsafe != back_safe[i]){
log_err("ERROR: Backward_safe offset expected:%d, Got:%d\n", back_unsafe[i], offsafe);
}
i++;
}
i=0;
while(offsafe > 0){
U16_BACK_1(input,0, offsafe);
if(offsafe != back_safe[i]){
log_err("ERROR: U16_BACK_1 offset expected:%d, Got:%d\n", back_unsafe[i], offsafe);
}
i++;
}
offunsafe=0;
offsafe=0;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0])-2; i++){ /*didn't want it to fail(we assume 0<i<length)*/
UTF16_FWD_N_UNSAFE(input, offunsafe, Nvalue[i]);
if(offunsafe != fwd_N_unsafe[i]){
log_err("ERROR: Forward_N_unsafe offset expected:%d, Got:%d\n", fwd_N_unsafe[i], offunsafe);
}
}
offunsafe=0;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0])-2; i++){ /*didn't want it to fail(we assume 0<i<length)*/
U16_FWD_N_UNSAFE(input, offunsafe, Nvalue[i]);
if(offunsafe != fwd_N_unsafe[i]){
log_err("ERROR: U16_FWD_N_UNSAFE offset expected:%d, Got:%d\n", fwd_N_unsafe[i], offunsafe);
}
}
offsafe=0;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0]); i++){
UTF16_FWD_N_SAFE(input, offsafe, sizeof(input)/U_SIZEOF_UCHAR, Nvalue[i]);
if(offsafe != fwd_N_safe[i]){
log_err("ERROR: Forward_N_safe offset expected:%d, Got:%d\n", fwd_N_safe[i], offsafe);
}
}
offsafe=0;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0]); i++){
U16_FWD_N(input, offsafe, sizeof(input)/U_SIZEOF_UCHAR, Nvalue[i]);
if(offsafe != fwd_N_safe[i]){
log_err("ERROR: U16_FWD_N offset expected:%d, Got:%d\n", fwd_N_safe[i], offsafe);
}
}
offunsafe=sizeof(input)/U_SIZEOF_UCHAR;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0])-2; i++){
UTF16_BACK_N_UNSAFE(input, offunsafe, Nvalue[i]);
if(offunsafe != back_N_unsafe[i]){
log_err("ERROR: backward_N_unsafe offset expected:%d, Got:%d\n", back_N_unsafe[i], offunsafe);
}
}
offunsafe=sizeof(input)/U_SIZEOF_UCHAR;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0])-2; i++){
U16_BACK_N_UNSAFE(input, offunsafe, Nvalue[i]);
if(offunsafe != back_N_unsafe[i]){
log_err("ERROR: U16_BACK_N_UNSAFE offset expected:%d, Got:%d\n", back_N_unsafe[i], offunsafe);
}
}
offsafe=sizeof(input)/U_SIZEOF_UCHAR;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0]); i++){
UTF16_BACK_N_SAFE(input, 0, offsafe, Nvalue[i]);
if(offsafe != back_N_safe[i]){
log_err("ERROR: backward_N_safe offset expected:%d, Got:%d\n", back_N_safe[i], offsafe);
}
}
offsafe=sizeof(input)/U_SIZEOF_UCHAR;
for(i=0; i<sizeof(Nvalue)/sizeof(Nvalue[0]); i++){
U16_BACK_N(input, 0, offsafe, Nvalue[i]);
if(offsafe != back_N_safe[i]){
log_err("ERROR: U16_BACK_N offset expected:%d, Got:%d\n", back_N_safe[i], offsafe);
}
}
}
