/*
* This function is used for morph parsing.
*
* The value is passed to parsetext which will call the right dictionary to
* lexize the word. If it turns out to be a stopword, we push a QI_VALSTOP
* to the stack.
*
* All words belonging to the same variant are pushed as an ANDed list,
* and different variants are ORred together.
*/
static void
pushval_morph(Datum opaque, TSQueryParserState state, char *strval, int lenval, int2 weight, bool prefix)
{
int4 count = 0;
ParsedText prs;
uint32 variant,
pos,
cntvar = 0,
cntpos = 0,
cnt = 0;
Oid cfg_id = DatumGetObjectId(opaque); /* the input is actually
* an Oid, not a pointer */
prs.lenwords = 4;
prs.curwords = 0;
prs.pos = 0;
prs.words = (ParsedWord *) palloc(sizeof(ParsedWord) * prs.lenwords);
parsetext(cfg_id, &prs, strval, lenval);
if (prs.curwords > 0)
{
while (count < prs.curwords)
{
pos = prs.words[count].pos.pos;
cntvar = 0;
while (count < prs.curwords && pos == prs.words[count].pos.pos)
{
variant = prs.words[count].nvariant;
cnt = 0;
while (count < prs.curwords && pos == prs.words[count].pos.pos && variant == prs.words[count].nvariant)
{
pushValue(state, prs.words[count].word, prs.words[count].len, weight,
((prs.words[count].flags & TSL_PREFIX) || prefix) ? true : false);
pfree(prs.words[count].word);
if (cnt)
pushOperator(state, OP_AND);
cnt++;
count++;
}
if (cntvar)
pushOperator(state, OP_OR);
cntvar++;
}
if (cntpos)
pushOperator(state, OP_AND);
cntpos++;
}
pfree(prs.words);
}
else
pushStop(state);
}
/*
* This function is used for morph parsing.
*
* The value is passed to parsetext which will call the right dictionary to
* lexize the word. If it turns out to be a stopword, we push a QI_VALSTOP
* to the stack.
*
* All words belonging to the same variant are pushed as an ANDed list,
* and different variants are ORed together.
*/
static void
pushval_morph(Datum opaque, TSQueryParserState state, char *strval, int lenval, int16 weight, bool prefix)
{
int32 count = 0;
ParsedText prs;
uint32 variant,
pos = 0,
cntvar = 0,
cntpos = 0,
cnt = 0;
MorphOpaque *data = (MorphOpaque *) DatumGetPointer(opaque);
prs.lenwords = 4;
prs.curwords = 0;
prs.pos = 0;
prs.words = (ParsedWord *) palloc(sizeof(ParsedWord) * prs.lenwords);
parsetext(data->cfg_id, &prs, strval, lenval);
if (prs.curwords > 0)
{
while (count < prs.curwords)
{
/*
* Were any stop words removed? If so, fill empty positions with
* placeholders linked by an appropriate operator.
*/
if (pos > 0 && pos + 1 < prs.words[count].pos.pos)
{
while (pos + 1 < prs.words[count].pos.pos)
{
/* put placeholders for each missing stop word */
pushStop(state);
if (cntpos)
pushOperator(state, data->qoperator, 1);
cntpos++;
pos++;
}
}
/* save current word's position */
pos = prs.words[count].pos.pos;
/* Go through all variants obtained from this token */
cntvar = 0;
while (count < prs.curwords && pos == prs.words[count].pos.pos)
{
variant = prs.words[count].nvariant;
/* Push all words belonging to the same variant */
cnt = 0;
while (count < prs.curwords &&
pos == prs.words[count].pos.pos &&
variant == prs.words[count].nvariant)
{
pushValue(state,
prs.words[count].word,
prs.words[count].len,
weight,
((prs.words[count].flags & TSL_PREFIX) || prefix));
pfree(prs.words[count].word);
if (cnt)
pushOperator(state, OP_AND, 0);
cnt++;
count++;
}
if (cntvar)
pushOperator(state, OP_OR, 0);
cntvar++;
}
if (cntpos)
{
/* distance may be useful */
pushOperator(state, data->qoperator, 1);
}
cntpos++;
}
pfree(prs.words);
}
else
pushStop(state);
}
