private string Trans2Syn(string s)
{
JudgeChar jc = new JudgeChar();
Stack<char> ts = new Stack<char> { };
for (int i = 0; i < s.Length; ++i)
{
if (jc.isDigit(s[i]))
{
if (ts.Count == 0 || ts.Peek() != 'i')
{
ts.Push('i');
}
}
else
{
ts.Push(s[i]);
}
}
string tmp = "";
for (int i = ts.Count - 1; i >= 0;--i )
{
tmp += ts.ElementAt(i);
}
return tmp;
}
public bool SynAna(string buf)
{
int count2 = 0;
//循环扫描所有算术表达式
while (count2 < buf.Length)
{
while (buf[count2] != '=' && count2 < buf.Length)
{
count2++;
if (count2 == buf.Length)
break;
}
if (count2 == buf.Length)
break;
JudgeChar jc = new JudgeChar();
if (jc.isAlphabet(buf[count2 - 1]))
{
count2++;
string part = "";
//判断是算术表达式
while ((buf[count2] >= '0' && buf[count2] <= '9') || this.IsOpt(buf[count2]))
{
part += buf[count2];
count2++;
}
if (part != "")
{
//加入数组中
parts.Add(part);
continue;
}
else continue;
}
else count2++;
}
try
{
for (int i = 0; i < parts.Count; ++i)
{
//对第i个串分析
Analyse(parts[i]);
}
return true;
}
catch
{
return false;
}
}
