/** @brief Enter choice mode and relating initialisations. */
int ChoiceFirstAvail( ChewingData *pgdata )
{
/* save old cursor position */
pgdata->choiceInfo.oldChiSymbolCursor = pgdata->chiSymbolCursor;
/* see if there is some word in the cursor position */
if ( pgdata->chiSymbolBufLen == pgdata->chiSymbolCursor ) {
if ( pgdata->config.bPhraseChoiceRearward )
pgdata->chiSymbolCursor = pgdata->preferInterval[ pgdata->nPrefer - 1 ].from + CountSymbols( pgdata, pgdata->chiSymbolBufLen );
else
pgdata->chiSymbolCursor--;
}
pgdata->bSelect = 1;
SetAvailInfo(
&( pgdata->availInfo ),
pgdata->phoneSeq,
pgdata->nPhoneSeq,
PhoneSeqCursor( pgdata ),
pgdata->bSymbolArrBrkpt );
if ( ! pgdata->availInfo.nAvail )
return ChoiceEndChoice( pgdata );
pgdata->availInfo.currentAvail = pgdata->availInfo.nAvail - 1;
SetChoiceInfo(
&( pgdata->choiceInfo ),
&( pgdata->availInfo ),
pgdata->phoneSeq,
PhoneSeqCursor( pgdata ),
pgdata->config.candPerPage );
return 0;
}
/** @brief Enter choice mode and relating initialisations. */
int ChoiceInitAvail(ChewingData *pgdata)
{
int end, begin;
/* save old cursor position */
pgdata->choiceInfo.oldChiSymbolCursor = pgdata->chiSymbolCursor;
/* see if there is some word in the cursor position */
if (pgdata->chiSymbolBufLen == pgdata->chiSymbolCursor) {
pgdata->chiSymbolCursor--;
}
end = PhoneSeqCursor(pgdata);
if (pgdata->config.bPhraseChoiceRearward) {
pgdata->chiSymbolCursor = SeekPhraseHead(pgdata) + CountSymbols(pgdata, pgdata->chiSymbolCursor);
}
begin = PhoneSeqCursor(pgdata);
pgdata->bSelect = 1;
SetAvailInfo(pgdata, begin, end);
if (!pgdata->availInfo.nAvail)
return ChoiceEndChoice(pgdata);
pgdata->availInfo.currentAvail = pgdata->availInfo.nAvail - 1;
SetChoiceInfo(pgdata);
return 0;
}
OSErr
NSFindSymbol(CFragConnectionID inID, Str255 inSymName, Ptr* outMainAddr, CFragSymbolClass *outSymClass)
{
OSErr err;
if (inSymName[0] > 63)
{
/*
if there are greater than 63 characters in the
name, CFM FindSymbol fails, so let's iterate through all
of the symbols in the fragment and grab it
that way.
*/
long symbolCount;
Str255 curSymName;
long curIndex;
Boolean found;
found = false;
err = CountSymbols(inID, &symbolCount);
if (noErr == err)
{
/* now iterate through all the symbols in the library */
/* per DTS the indices apparently go 0 to n-1 */
for (curIndex = 0; (curIndex <= symbolCount - 1 && !found); curIndex++)
{
err = GetIndSymbol(inID, curIndex, curSymName, outMainAddr, outSymClass);
if (noErr == err && curSymName[0] == inSymName[0] && !strncmp((char*)curSymName + 1, (char*)inSymName + 1, curSymName[0]))
{
/* found our symbol */
found = true;
}
}
/* if we didn't find it set the error code so below it won't take this symbol */
if (!found)
err = cfragNoSymbolErr;
}
}
else
{
err = FindSymbol(inID, inSymName, outMainAddr, outSymClass);
}
return (err);
}
/** @brief Loading all possible phrases after the cursor from long to short into AvailInfo structure.*/
static void SetAvailInfo(ChewingData *pgdata, int begin, int end)
{
AvailInfo *pai = &(pgdata->availInfo);
const uint16_t *phoneSeq = pgdata->phoneSeq;
int nPhoneSeq = pgdata->nPhoneSeq;
const int *bSymbolArrBrkpt = pgdata->bSymbolArrBrkpt;
int symbolArrBrkpt[ARRAY_SIZE(pgdata->bSymbolArrBrkpt)] = { 0 };
const TreeType *tree_pos;
int diff;
uint16_t userPhoneSeq[MAX_PHONE_SEQ_LEN];
int i, head, head_tmp;
int tail, tail_tmp;
int pos;
head = tail = 0;
pai->nAvail = 0;
/*
* XXX: The phoneSeq, nPhoneSeq skip any symbol in preedit buffer,
* while bSymbolArrBrkpt, does not skip any symbol in preedit
* buffer. So we need to do some translate here.
*/
for (i = 0; i < pgdata->chiSymbolBufLen; ++i) {
if (bSymbolArrBrkpt[i]) {
/*
* XXX: If preedit buffer starts with symbol, the pos
* will become negative. In this case, we just ignore
* this symbol because it does not create any break
* point.
*/
pos = i - CountSymbols(pgdata, i + 1);
if (pos >= 0)
symbolArrBrkpt[pos] = 1;
}
}
if (pgdata->config.bPhraseChoiceRearward) {
for (i = end; i >= begin; i--) {
if (symbolArrBrkpt[i])
break;
head = i;
}
head_tmp = end;
} else {
head_tmp = head = begin;
}
if (pgdata->config.bPhraseChoiceRearward) {
tail_tmp = tail = end;
} else {
for (i = begin; i < nPhoneSeq; i++) {
tail = i;
if (symbolArrBrkpt[i])
break;
}
tail_tmp = begin;
}
while (head <= head_tmp && tail_tmp <= tail) {
diff = tail_tmp - head_tmp;
tree_pos = TreeFindPhrase(pgdata, head_tmp, tail_tmp, phoneSeq);
if (tree_pos) {
/* save it! */
pai->avail[pai->nAvail].len = diff + 1;
pai->avail[pai->nAvail].id = tree_pos;
pai->nAvail++;
} else {
memcpy(userPhoneSeq, &phoneSeq[head_tmp], sizeof(uint16_t) * (diff + 1));
userPhoneSeq[diff + 1] = 0;
if (UserGetPhraseFirst(pgdata, userPhoneSeq)) {
/* save it! */
pai->avail[pai->nAvail].len = diff + 1;
pai->avail[pai->nAvail].id = NULL;
pai->nAvail++;
} else {
pai->avail[pai->nAvail].len = 0;
pai->avail[pai->nAvail].id = NULL;
}
UserGetPhraseEnd(pgdata, userPhoneSeq);
}
if (pgdata->config.bPhraseChoiceRearward) {
head_tmp--;
} else {
tail_tmp++;
}
}
}
