static void
findoprnd(ITEM *ptr, int4 *pos)
{
#ifdef BS_DEBUG
elog(DEBUG3, (ptr[*pos].type == OPR) ?
"%d %c" : "%d %d", *pos, ptr[*pos].val);
#endif
if (ptr[*pos].type == VAL)
{
ptr[*pos].left = 0;
(*pos)--;
}
else if (ptr[*pos].val == (int4) '!')
{
ptr[*pos].left = -1;
(*pos)--;
findoprnd(ptr, pos);
}
else
{
ITEM *curitem = &ptr[*pos];
int4 tmp = *pos;
(*pos)--;
findoprnd(ptr, pos);
curitem->left = *pos - tmp;
findoprnd(ptr, pos);
}
}
static void
findoprnd(ITEM *ptr, int32 *pos)
{
/* since this function recurses, it could be driven to stack overflow. */
check_stack_depth();
#ifdef BS_DEBUG
elog(DEBUG3, (ptr[*pos].type == OPR) ?
"%d %c" : "%d %d", *pos, ptr[*pos].val);
#endif
if (ptr[*pos].type == VAL)
{
ptr[*pos].left = 0;
(*pos)--;
}
else if (ptr[*pos].val == (int32) '!')
{
ptr[*pos].left = -1;
(*pos)--;
findoprnd(ptr, pos);
}
else
{
ITEM *curitem = &ptr[*pos];
int32 tmp = *pos;
(*pos)--;
findoprnd(ptr, pos);
curitem->left = *pos - tmp;
findoprnd(ptr, pos);
}
}
static void
findoprnd(ITEM *ptr, int4 *pos)
{
if (ptr[*pos].type == VAL || ptr[*pos].type == VALTRUE)
{
ptr[*pos].left = 0;
(*pos)++;
}
else if (ptr[*pos].val == (int4) '!')
{
ptr[*pos].left = 1;
(*pos)++;
findoprnd(ptr, pos);
}
else
{
ITEM *curitem = &ptr[*pos];
int4 tmp = *pos;
(*pos)++;
findoprnd(ptr, pos);
curitem->left = *pos - tmp;
findoprnd(ptr, pos);
}
}
static void
findoprnd(ITEM *ptr, int32 *pos)
{
/* since this function recurses, it could be driven to stack overflow. */
check_stack_depth();
if (ptr[*pos].type == VAL || ptr[*pos].type == VALTRUE)
{
ptr[*pos].left = 0;
(*pos)++;
}
else if (ptr[*pos].val == (int32) '!')
{
ptr[*pos].left = 1;
(*pos)++;
findoprnd(ptr, pos);
}
else
{
ITEM *curitem = &ptr[*pos];
int32 tmp = *pos;
(*pos)++;
findoprnd(ptr, pos);
curitem->left = *pos - tmp;
findoprnd(ptr, pos);
}
}
/*
* input
*/
Datum
bqarr_in(PG_FUNCTION_ARGS)
{
char *buf = (char *) PG_GETARG_POINTER(0);
WORKSTATE state;
int4 i;
QUERYTYPE *query;
int4 commonlen;
ITEM *ptr;
NODE *tmp;
int4 pos = 0;
#ifdef BS_DEBUG
StringInfoData pbuf;
#endif
state.buf = buf;
state.state = WAITOPERAND;
state.count = 0;
state.num = 0;
state.str = NULL;
/* make polish notation (postfix, but in reverse order) */
makepol(&state);
if (!state.num)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("empty query")));
commonlen = COMPUTESIZE(state.num);
query = (QUERYTYPE *) palloc(commonlen);
SET_VARSIZE(query, commonlen);
query->size = state.num;
ptr = GETQUERY(query);
for (i = state.num - 1; i >= 0; i--)
{
ptr[i].type = state.str->type;
ptr[i].val = state.str->val;
tmp = state.str->next;
pfree(state.str);
state.str = tmp;
}
pos = query->size - 1;
findoprnd(ptr, &pos);
#ifdef BS_DEBUG
initStringInfo(&pbuf);
for (i = 0; i < query->size; i++)
{
if (ptr[i].type == OPR)
appendStringInfo(&pbuf, "%c(%d) ", ptr[i].val, ptr[i].left);
else
appendStringInfo(&pbuf, "%d ", ptr[i].val);
}
elog(DEBUG3, "POR: %s", pbuf.data);
pfree(pbuf.data);
#endif
PG_RETURN_POINTER(query);
}
/*
* input
*/
static QUERYTYPE *
queryin(char *buf, void (*pushval) (QPRS_STATE *, int, char *, int, int2), int cfg_id)
{
QPRS_STATE state;
int4 i;
QUERYTYPE *query;
int4 commonlen;
ITEM *ptr;
NODE *tmp;
int4 pos = 0;
#ifdef BS_DEBUG
char pbuf[16384],
*cur;
#endif
/* init state */
state.buf = buf;
state.state = WAITOPERAND;
state.count = 0;
state.num = 0;
state.str = NULL;
state.cfg_id = cfg_id;
/* init value parser's state */
state.valstate.oprisdelim = true;
state.valstate.len = 32;
state.valstate.word = (char *) palloc(state.valstate.len);
/* init list of operand */
state.sumlen = 0;
state.lenop = 64;
state.curop = state.op = (char *) palloc(state.lenop);
*(state.curop) = '\0';
/* parse query & make polish notation (postfix, but in reverse order) */
makepol(&state, pushval);
pfree(state.valstate.word);
if (!state.num)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("empty query")));
/* make finish struct */
commonlen = COMPUTESIZE(state.num, state.sumlen);
query = (QUERYTYPE *) palloc(commonlen);
query->len = commonlen;
query->size = state.num;
ptr = GETQUERY(query);
/* set item in polish notation */
for (i = 0; i < state.num; i++)
{
ptr[i].weight = state.str->weight;
ptr[i].type = state.str->type;
ptr[i].val = state.str->val;
ptr[i].distance = state.str->distance;
ptr[i].length = state.str->length;
tmp = state.str->next;
pfree(state.str);
state.str = tmp;
}
/* set user friendly-operand view */
memcpy((void *) GETOPERAND(query), (void *) state.op, state.sumlen);
pfree(state.op);
/* set left operand's position for every operator */
pos = 0;
findoprnd(ptr, &pos);
#ifdef BS_DEBUG
cur = pbuf;
*cur = '\0';
for (i = 0; i < query->size; i++)
{
if (ptr[i].type == OPR)
sprintf(cur, "%c(%d) ", ptr[i].val, ptr[i].left);
else
sprintf(cur, "%d(%s) ", ptr[i].val, GETOPERAND(query) + ptr[i].distance);
cur = strchr(cur, '\0');
}
elog(DEBUG3, "POR: %s", pbuf);
#endif
return query;
}
/*
* input
*/
static ltxtquery *
queryin(char *buf)
{
QPRS_STATE state;
int4 i;
ltxtquery *query;
int4 commonlen;
ITEM *ptr;
NODE *tmp;
int4 pos = 0;
#ifdef BS_DEBUG
char pbuf[16384],
*cur;
#endif
/* init state */
state.buf = buf;
state.state = WAITOPERAND;
state.count = 0;
state.num = 0;
state.str = NULL;
/* init list of operand */
state.sumlen = 0;
state.lenop = 64;
state.curop = state.op = (char *) palloc(state.lenop);
*(state.curop) = '\0';
/* parse query & make polish notation (postfix, but in reverse order) */
makepol(&state);
if (!state.num)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("syntax error"),
errdetail("Empty query.")));
/* make finish struct */
commonlen = COMPUTESIZE(state.num, state.sumlen);
query = (ltxtquery *) palloc(commonlen);
SET_VARSIZE(query, commonlen);
query->size = state.num;
ptr = GETQUERY(query);
/* set item in polish notation */
for (i = 0; i < state.num; i++)
{
ptr[i].type = state.str->type;
ptr[i].val = state.str->val;
ptr[i].distance = state.str->distance;
ptr[i].length = state.str->length;
ptr[i].flag = state.str->flag;
tmp = state.str->next;
pfree(state.str);
state.str = tmp;
}
/* set user friendly-operand view */
memcpy((void *) GETOPERAND(query), (void *) state.op, state.sumlen);
pfree(state.op);
/* set left operand's position for every operator */
pos = 0;
findoprnd(ptr, &pos);
return query;
}