void error()
{
Console.WriteLine("This word is error!\n");
MessageBox.Show(token + " here is wrong!");
errorInf = "This word is error!";
symbol = (classify)6;
}
int getsym()
{
if (IsEnd == false)
{
clearToken();
getChar();
//cout << "first get char " << CHAR << endl;
while (CHAR == '\r' || Char.IsWhiteSpace(CHAR) || CHAR == '\t' || CHAR == '\n' || CHAR == ' ')
{
getChar();
}
//字母
if (Char.IsLetter(CHAR))
{
catToken();
getChar();
while (Char.IsLetter(CHAR) || Char.IsDigit(CHAR))
{
catToken(); getChar();
}
retract();
int resultValue = reserver();
if (resultValue == -1)
{
symbol = classify.IDSY; outt = token;
}
else
{
symbol = classify.KEYWORDSY; outt = token;
}
}
//数字
else if (Char.IsDigit(CHAR))
{
catToken();
getChar();
while (Char.IsDigit(CHAR))
{
catToken(); getChar();
}
//整数
if (!isDot())
{
retract();
outt = transNum();
symbol = classify.INTSY;
}
else
{
catToken();
getChar();
while (Char.IsDigit(CHAR))
{
catToken(); getChar();
}
if (isDot())
{
catToken();
getChar();
while (Char.IsDigit(CHAR))
{
catToken(); getChar();
}
symbol = (classify)6;
error();
//MessageBox.Show(token +" here is wrong!");
}
else
{
symbol = classify.FLOATSY;
}
retract();
outt = token;
}
}
else if (isColon())
{
catToken();
getChar();
if (isEqu())
{
catToken(); symbol = classify.DOUBLE; outt = ":=";
}
else
{
retract(); symbol = classify.CALSY; outt = "：";
}
}
else if (isEqu())
{
catToken(); symbol = classify.SINGLESY; outt = "=";
}
else if (isPlus())
{
catToken(); symbol = classify.SINGLESY; outt = "+";
}
else if (isMinus())
{
catToken(); symbol = classify.SINGLESY; outt = "-";
}
else if (isStar())
{
catToken(); symbol = classify.SINGLESY; outt = "*";
}
else if (isLpar())
{
catToken(); symbol = classify.CALSY; outt = "（";
}
else if (isRpar())
{
catToken(); symbol = classify.CALSY; outt = "）";
}
else if (isComma())
{
catToken(); symbol = classify.CALSY; outt = "，";
}
else if (isSemi())
{
catToken(); symbol = classify.CALSY; outt = ";";
}
else if (isSmall())
{
catToken();
getChar();
if (isEqu())
{
catToken(); symbol = classify.DOUBLE; outt = "<=";
}
else
{
retract(); symbol = classify.SINGLESY; outt = "<";
}
}
else if (isBig())
{
catToken();
getChar();
if (isEqu())
{
catToken(); symbol = classify.DOUBLE; outt = ">=";
}
else
{
retract(); symbol = classify.SINGLESY; outt = ">";
}
}
else if (isDot())
{
catToken();
symbol = classify.CALSY; outt = ".";
}
else if (isDivi())
{
getChar();
if (isStar())
{
do
{
do
{
getChar();
} while (!isStar());
do
{
getChar();
if (isDivi())
{
symbol = classify.COMMENTSY;
outt = ""; return(0);
}
} while (isStar());
} while (!isStar());
symbol = classify.COMMENTSY;
outt = "";
}
else
{
retract();
catToken();
symbol = classify.SINGLESY; outt = "/";
}
}
else if (IsEnd == true)
{
return(0);
}
else
{
catToken(); error();
}
return(0);
}
return(-1);
}
