private void RecogSym()
{
string str = "" + input[i];
if (str == ":" || str == "<" || str == ">")
{
i++;
if (input[i] == '=')
{
str += input[i];
}
else if (input[i] == '>' && str == "<")
{
str += input[i];
}
else
{
i--;
}
}
for (int j = 21; j <= 37; j++)
{
if (str == MachineCodes[j])
{
Token t = new Token
{
TokenCount = Tokens.Count,
Name = str,
Code = j,
IdentifierCount = -1
};
Tokens.Add(t);
i++;
}
}
}
private void RecogId()
{
string str = "";
int code;
do
{
str += input[i];
i++;
} while (IsAlpha(input[i]) || IsDight(input[i])); //Only if it's alpha or digit, add it into current word
code = Reserve(str);
Token t = new Token
{
TokenCount = Tokens.Count,
Name = str
}; //Store into token list
if (code == 0)
{
t.Code = 18;
t.IdentifierCount = Symbols.Count;
Symbol s = new Symbol
{
IdentifierCount = t.IdentifierCount,
Name = str,
Code = 18
}; //Store into symbol list
Symbols.Add(s);
}
else
{
t.Code = code;
t.IdentifierCount = -1;
}
Tokens.Add(t);
}
private void RecogCons()
{
string str = input[i].ToString();
bool flag = true;
bool point = true;
while (flag)
{
i++;
if (IsDight(input[i]))
{
str += input[i];
}
else if (input[i] == '.')
{
if (point)
{
str += input[i];
point = false;
}
else
{
Error e = new Error(rowNum, str, "Have the second '.' for this number!");
Errors.Add(e);
flag = false;
}
}
else
{
flag = false;
}
}
if (point)
{
Token t = new Token
{
TokenCount = Tokens.Count,
Name = str,
Code = 19,
IdentifierCount = Symbols.Count
};
Symbol s = new Symbol
{
IdentifierCount = t.IdentifierCount,
Name = str,
Code = 19
};
Symbols.Add(s);
Tokens.Add(t);
}
else
{
Token t = new Token
{
TokenCount = Tokens.Count,
Name = str,
Code = 20,
IdentifierCount = Symbols.Count
};
Symbol s = new Symbol
{
IdentifierCount = t.IdentifierCount,
Name = str,
Code = 20
};
Symbols.Add(s);
Tokens.Add(t);
}
}