public ClauseGroup GetClauseGroup(string block)
{
var span = block.AsSpan();
var result = new ClauseGroup();
var currentGroup = result;
var startIndex = 0;
while (startIndex < span.Length)
{
var word = GetWord(span, false, ref startIndex, out var state, out var keyword);
if (word == "(")
{
var group = new ClauseGroup()
{
Parent = currentGroup
};
currentGroup.ClauseQueue.Enqueue(group);
currentGroup = group;
continue;
}
else if (word == ")")
{
currentGroup = currentGroup.Parent;
}
var group1 = new ClauseGroup()
{
Parent = currentGroup
};
currentGroup.ClauseQueue.Enqueue(group1);
group1.IsCondition = true;
var currentCondition = group1.Condition = new Condition();
currentCondition.Left = word;
if (state == ReadPhraseState.Operator)
{
currentCondition.Operator = TryParseOperator(keyword);
currentCondition.IsSingle = false;
var rightWord = GetWord(span, true, ref startIndex, out var state1, out var keyword1);
currentCondition.Right = rightWord;
if (!string.IsNullOrEmpty(keyword1))
{
currentGroup.RelationQueue.Enqueue(TryParseRelation(keyword1));
}
}
else
{
currentCondition.IsSingle = true;
if (!string.IsNullOrEmpty(keyword))
{
currentGroup.RelationQueue.Enqueue(TryParseRelation(keyword));
}
}
}
return(result);
}
public ClauseGroup GetClauseGroup()
{
var i = 0;
var clauseGroup = new ClauseGroup();
while (i < _block.Length)
{
var j = i;
while (j < _block.Length)
{
if (_block[j] == '&')
{
clauseGroup.Collection.Add(_block[i..(j)]);
