String printdfa(int line, String nowWord, TokenStruct w)
{
String df = "";
int id = w.getId();
if (id == -88)
{
df = "< 0,0,7 >< 7,1 - 7,8 >< 8,0 - 7,8 >";
}
else if (id == -66)
{
df = "< 0,0,7 >< 7,x,9 >< 9,1 - 9a - f,10 >< 10,0 - 9a - f,10 >";
}
else if (id == 0)
{
df = "< 0,/,3 >< 3,*,4 >< 4,其他,4 >< 4,*,5 >< 5,其他,4 >< 5,*,5 >< 5,/,6 >";
}
else if (id == 1 || ((id >= 10) && (id <= 59)))
{
df = "< 0,letter_,1 >< 1,letter_,1 >< 1,digit,1 >";
}
else if (id >= 90 && id <= 139)
{
df = "< 0,op,20 >< 1,op,21 >";
}
else if (id >= 60 && id <= 89)
{
int iso = 0;
iso = isOperate(nowWord);
if (iso != -1)
{
df = "< 0,op,20 >< 1,op,21 >";
}
else
{
df = "< 0,界符,2 >";
}
}
else if (id == 2 || id == 4)
{
df = "<0,digit,11><11,digit,11><11,.,12><11,E,14><12,digit,13><13,digit,13><13,E,14><14,+-,15><14,digit,16><15,digit,16><16,digit,16>";
}
else if (id == 3)
{
df = "<0,',17><17,letter_,18><18,',19>";
}
else
{
df = "";
}
String dfa = "line " + line + "\t" + nowWord + "\t" + df + "\r\n";
return(dfa);
}
String getTokenOut(int line, String nowWord, TokenStruct w)
{
if (w.getId() == -88 || w.getId() == -66)
{
return("line " + line + "\t" + nowWord + "\t( " + w.getWord() + ", " + w.getId() + ", " + w.getDecri() + ")\r\n");
}
else if (w.getId() == 0)
{
return("line " + line + "\t" + "注释" + "\t( " + w.getWord() + ", " + w.getId() + ", " + w.getDecri() + ")\r\n");
}
else if (w.getId() <= 5)
{
return("line " + line + "\t" + nowWord + "\t( " + w.getWord() + ", " + w.getId() + ", " + w.getDecri() + ")\r\n");
}
else
{
return("line " + line + "\t" + nowWord + "\t( " + w.getWord() + ", " + w.getId() + ", " + w.getDecri() + ")\r\n");
}
}
TokenStruct intConst; //整型常量
//词法分析类构造方法
public Lex()
{
identify = new TokenStruct("IDN", 1, "identify");
intConst = new TokenStruct("INT", 2, "int");
charConst = new TokenStruct("CHAR", 3, "char");
floatConst = new TokenStruct("FLOAT", 4, "float");
stringConst = new TokenStruct("STRING", 5, "string");
note = new TokenStruct("Note", 0, "注释");
eighth = new TokenStruct("Eight", -88, "八进制");
sixth = new TokenStruct("Six", -66, "十六进制");
help = new Help();
StreamReader r = new StreamReader(@"..\\..\\tool\\keyword.txt");
String temp;
for (int i = 0; i < 50; i++)
{
temp = r.ReadLine();
if (temp == null || temp.Equals(""))
{
break;
}
keyword[i] = new TokenStruct(temp, 10 + i, temp);
}
r.Close();
r = new StreamReader(@"..\\..\\tool\\singleDelimiters.txt");
String[] s;
for (int i = 0; i < 30; i++)
{
temp = r.ReadLine();
if (temp == null || temp.Equals(""))
{
break;
}
s = temp.Split(new char[] { '\t' });
singleDelimiters[i] = new TokenStruct(s[0], 60 + i, s[1]);
}
r.Close();
r = new StreamReader(@"..\\..\\tool\\dualDelimiters.txt");
for (int i = 0; i < 50; i++)
{
temp = r.ReadLine();
if (temp == null || temp.Equals(""))
{
break;
}
s = temp.Split(new char[] { '\t' });
dualDelimiters[i] = new TokenStruct(s[0], 90 + i, s[1]);
}
r.Close();
}
