//Выражение в скобках
public void WoLExpr(ref string Input, out WoLNode Node)
{
Input = Input.Trim();
Node = null;
if (Input.Length != 0)
{
_WoLAnd(ref Input, out Node);
if (pars_Err != 0)
return;
Input = Input.Trim();
while ((Input.Length > 0) && (Input[0] == '|'))
{
_WoLTakeElements(ref Input, 1);
if (Input.Length == 0)
{
pars_Err = 0;
return;
}
WoLNode SecondNode;
_WoLOr(ref Input, out SecondNode);
if (pars_Err != 0)
return;
WoLNode FirstNode = Node;
WoLOperations Op = WoLOperations.OR;
Node = new WoLOperation(Op, FirstNode, SecondNode);
}
}
}
//AND
void _WoLAnd(ref string Input, out WoLNode Node)
{
Input = Input.Trim();
Node = null;
if (Input.Length != 0)
{
_WoLFact(ref Input, out Node);
if (pars_Err != 0)
return;
while ((Input.Length != 0) && (Input[0] == '&'))
{
_WoLTakeElements(ref Input, 1);
if (Input.Length == 0)
{
pars_Err = 6; //Нужен множитель
return;
}
WoLNode SecondNode;
_WoLFact(ref Input, out SecondNode);
if (pars_Err != 0)
return;
WoLNode FirstNode = Node;
WoLOperations Op = WoLOperations.AND;
Node = new WoLOperation(Op, FirstNode, SecondNode);
}
}
else
pars_Err = 5; //Нужно слагаемое
}