public virtual bool Next()
{
if (firstTime)
{
InitList(true);
ListToQueue(); // initialize queue
firstTime = false;
}
else if (more)
{
if (Min().Next())
{
// trigger further scanning
queue.AdjustTop(); // maintain queue
}
else
{
more = false;
}
}
while (more)
{
bool queueStale = false;
if (Min().Doc() != max.Doc())
{
// maintain list
QueueToList();
queueStale = true;
}
// skip to doc w/ all clauses
while (more && first.Doc() < last.Doc())
{
more = first.SkipTo(last.Doc()); // skip first upto last
FirstToLast(); // and move it to the end
queueStale = true;
}
if (!more)
{
return(false);
}
// found doc w/ all clauses
if (queueStale)
{
// maintain the queue
ListToQueue();
queueStale = false;
}
if (AtMatch())
{
return(true);
}
more = Min().Next();
if (more)
{
queue.AdjustTop(); // maintain queue
}
}
return(false); // no more matches
}
public virtual bool Next()
{
if (firstTime)
{
InitList(true);
ListToQueue(); // initialize queue
firstTime = false;
}
else if (more)
{
more = Min().Next(); // trigger further scanning
if (more)
{
queue.AdjustTop(); // maintain queue
}
}
while (more)
{
bool queueStale = false;
if (Min().Doc() != max.Doc())
{
// maintain list
QueueToList();
queueStale = true;
}
// skip to doc w/ all clauses
while (more && first.Doc() < last.Doc())
{
more = first.SkipTo(last.Doc()); // skip first upto last
FirstToLast(); // and move it to the end
queueStale = true;
}
if (!more)
{
return(false);
}
// found doc w/ all clauses
if (queueStale)
{
// maintain the queue
ListToQueue();
queueStale = false;
}
if (AtMatch())
{
return(true);
}
// trigger further scanning
if (inOrder && CheckSlop())
{
/* There is a non ordered match within slop and an ordered match is needed. */
more = FirstNonOrderedNextToPartialList();
if (more)
{
PartialListToQueue();
}
}
else
{
more = Min().Next();
if (more)
{
queue.AdjustTop(); // maintain queue
}
}
}
return(false); // no more matches
}