public Boolean getResult() {
ParserD p=new ParserD(m_formula[0], stock);
decimal o1;
try
{
o1 = p.getResult();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
p=new ParserD(m_formula[2], stock);
decimal o2;
try
{
o2 = p.getResult();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
if (m_formula[1].Equals("=")) {
if (o1 == o2)
return true;
else
return false;
}
else if (m_formula[1].Equals(">")) {
if (o1 > o2)
return true;
else
return false;
}
else if (m_formula[1].Equals("<")) {
if (o1 < o2)
return true;
else
return false;
}
else { return false; }
}
private String simplyFormula(String [] formula)
{
Queue <String> qFormula = new Queue <String>();
Queue <String> temp = new Queue <String>();
Queue <String> result = new Queue <String>();
foreach (string s in formula)
{
qFormula.Enqueue(s);
}
while (qFormula.Count != 0)
{
if (qFormula.Peek().Equals("{"))
{
qFormula.Dequeue();
temp.Clear();
try {
while (!qFormula.Peek().Equals("}"))
{
temp.Enqueue(qFormula.Dequeue());
}
}
catch (Exception e)
{
return("表达式错误！请检查括号是否匹配！");
}
qFormula.Dequeue();
String [] f = temp.ToArray();
result.Enqueue(simplyFormula(f));
}
else if (!(qFormula.Peek().Equals("AND") || qFormula.Peek().Equals("and")) &&
!(qFormula.Peek().Equals("OR") || qFormula.Peek().Equals("or")))
{
if (qFormula.Peek().Contains(">") || qFormula.Peek().Contains("<") || qFormula.Peek().Contains("="))
{
ParserB p = new ParserB(qFormula.Dequeue(), stock);
try
{
result.Enqueue(p.getResult().ToString());
}
catch (Exception e)
{
return(e.Message);
}
}
else
{
ParserD p = new ParserD(qFormula.Dequeue(), stock);
try
{
result.Enqueue(p.getResult().ToString());
}
catch (Exception e)
{
return(e.Message);
}
}
}
else
{
result.Enqueue(qFormula.Dequeue());
}
}
Stack <String> sResult = new Stack <string>();
Stack <String> sTemp = new Stack <string>();
while (result.Count() != 0)
{
sTemp.Push(result.Dequeue());
}
while (sTemp.Count() != 0)
{
sResult.Push(sTemp.Pop());
}
while (sResult.Count() > 1)
{
Boolean o1;
try{
o1 = Convert.ToBoolean(sResult.Pop());
}
catch (FormatException e)
{
return("表达式错误！请检查AND(OR)运算符操作数据是否为布尔值！");
}
catch
{
return("表达式错误！请检查AND(OR)运算符前是否缺失数据！");
}
String opreator = sResult.Pop();
Boolean o2;
try
{
o2 = Convert.ToBoolean(sResult.Pop());
}
catch (FormatException e)
{
return("表达式错误！请检查AND(OR)运算符操作数据是否为布尔值！");
}
catch
{
return("表达式错误！请检查AND(OR)运算符后是否缺失数据！");
}
if (opreator.Equals("AND") || opreator.Equals("and"))
{
String tempResult = (o1 && o2).ToString();
sResult.Push(tempResult);
}
if (opreator.Equals("OR") || opreator.Equals("or"))
{
String tempResult = (o1 || o2).ToString();
sResult.Push(tempResult);
}
}
return(sResult.Pop());
}
public Boolean getResult()
{
ParserD p = new ParserD(m_formula[0], stock);
decimal o1;
try
{
o1 = p.getResult();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
p = new ParserD(m_formula[2], stock);
decimal o2;
try
{
o2 = p.getResult();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
if (m_formula[1].Equals("="))
{
if (o1 == o2)
{
return(true);
}
else
{
return(false);
}
}
else if (m_formula[1].Equals(">"))
{
if (o1 > o2)
{
return(true);
}
else
{
return(false);
}
}
else if (m_formula[1].Equals("<"))
{
if (o1 < o2)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
