private void state8(CharChain chain)
{
char next = chain.GetNext();
if (next == '0')
{
state = 11;
}
else if (next >= '1' && next <= '9')
{
state = 9;
int digit = ((int)next) - ((int)'0');
result = result * 10 + digit;
}
else if (next == '-')
{
state = 10;
isNegative = true;
}
else if (next == '_')
{
state = 12;
skip = true;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидалась цифра.");
}
}
private void state9(CharChain chain)
{
char next = chain.GetNext();
if (next >= '0' && next <= '9')
{
state = 9;
int digit = ((int)next) - ((int)'0');
result = result * 10 + digit;
}
else if (next == '\n' || next == '\0')
{
state = 13;
if (isNegative)
{
result *= -1;
}
isNegative = false;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидался перенос строки или конец файла.");
}
}
private void state5(CharChain chain)
{
char next = chain.GetNext();
if (next >= '0' && next <= '9')
{
state = 5;
int digit = ((int)next) - ((int)'0');
secondNumber = secondNumber * 10 + digit;
}
else if (next == '=')
{
state = 8;
if (isNegative)
{
secondNumber *= -1;
}
isNegative = false;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидалось '='.");
}
}
private void state4(CharChain chain)
{
char next = chain.GetNext();
if (next == '0')
{
state = 7;
}
else if (next >= '1' && next <= '9')
{
state = 5;
int digit = ((int)next) - ((int)'0');
secondNumber = secondNumber * 10 + digit;
}
else if (next == '-')
{
state = 6;
isNegative = true;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидалась цифра.");
}
}
private void state1(CharChain chain)
{
char next = chain.GetNext();
if (next >= '0' && next <= '9')
{
state = 1;
int digit = ((int)next) - ((int)'0');
firstNumber = firstNumber * 10 + digit;
}
else if (isOperation(next))
{
state = 4;
operation = next;
if (isNegative)
{
firstNumber *= -1;
}
isNegative = false;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидалась операция.");
}
}
private void state12(CharChain chain)
{
char next = chain.GetNext();
if (next == '\n' || next == '\0')
{
state = 13;
}
else
{
throw new Exception("Обнаружен символ : '" + charView(next) + "', ожидался перенос строки или конец файла.");
}
}
private void state7(CharChain chain)
{
char next = chain.GetNext();
if (next == '=')
{
state = 8;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидался '='.");
}
}
private void state3(CharChain chain)
{
char next = chain.GetNext();
if (isOperation(next))
{
state = 4;
operation = next;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидался знак операции.");
}
}
private void state10(CharChain chain)
{
char next = chain.GetNext();
if (next >= '1' && next <= '9')
{
state = 9;
int digit = ((int)next) - ((int)'0');
result = result * 10 + digit;
}
else
{
throw new Exception("Обнаружен символ: '" + charView(next) + "', ожидалась цифра.");
}
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
CharChain chain = new CharChain(CodeField.Text);
Automat automat = new Automat();
bool result = false;
int correct = 0;
int wrong = 0;
for (int i = 1; i <= 5; i++)
{
try
{
result = automat.Check(chain);
}
catch (Exception ex)
{
ResultField.Text += "\r\nПример №" + i.ToString() + " " + ex.Message;
return;
}
if (result)
{
correct++;
}
else
{
wrong++;
}
}
char next = chain.GetNext();
if (next != '\0')
{
ResultField.Text += "\r\nВведено больше 5 примеров.";
return;
}
ResultField.Text += "\r\nВерно: " + correct.ToString() + ", неверно: " + wrong.ToString();
}
private bool tryStop()
{
char next = chain.Next().Char;
if (next == '\0' || next == ';')
{
chain.GetNext();
state = 13;
return(true);
}
return(false);
}