public Token(uint line, uint column, Token_Type type, string value)
{
this.line = line;
this.column = column;
this.type = type;
this.value = value;
}
public Token(Token_Type Type, float Value, int precedence)
{
this.Type = Type;
this.Value = (float)Value;
this.Precedence = precedence;
SetOperatorString(Type);
}
private void parse_letter()
{
do
{
append_char_to_builder();
}while (is_letter(next_char));
string s = builder.ToString();
builder.Clear();
token_type = keywords.Contains(s)? Token_Type.Keyword
: operators.Contains(s)? Token_Type.Operator
: (s == "true" || s == "false")? Token_Type.Boolean
: (s == "null")? Token_Type.Null
: Token_Type.Name;
builder.Append(s);
}
static Node <Token> tokenize_split(Code code, Node <Token> rest, Token_Type type, Location loc, char end)
{
bool unbreak = true;
code.shift();
int start = code.index();
int trans_time = 0;
while (code.noEnd() && unbreak)
{
char c = code.current();
if (c == end)
{
String str = code.substr(start, code.index());
if (trans_time != 0)
{
str = Util.stringFromEscape(str, end, trans_time);
}
rest = Node <Token> .extend(
new Token(str, type, loc),
rest
);
code.shift();
unbreak = false;
}
else
{
if (c == '\\')
{
trans_time++;
code.shift();
}
code.shift();
}
}
if (unbreak)
{
throw new LocationException(loc, "³¬³ö·¶Î§ÈÔδ½áÊø");
}
return(rest);
}
private void parse_number()
{
do
{
append_char_to_builder();
}while (is_digit(next_char));
if (next_char == '.' && is_digit(next_next))
{
do
{
append_char_to_builder();
}while (is_digit(next_char));
token_type = Token_Type.Decimal;
}
else
{
token_type = Token_Type.Integer;
}
}
bool MatchToken(Token_Type tp)
{
return(token.type == tp);
}
private void begin_parse()
{
if (is_letter(next_char))
{
parse_letter(); // name, keyword, boolean(true, false), null, operator(and, or, not...)
}
else if (is_digit(next_char))
{
parse_number(); // integer or decimal
}
else
{
switch (next_char)
{
// 括号
case '(':
case ')':
case '[':
case ']':
case '{':
case '}':
{
append_char_to_builder();
token_type = Token_Type.Bracket;
}
break;
case '+':
case '-': // 加减号或正负号
{
append_char_to_builder();
token_type = Token_Type.Operator;
}
break;
case '*':
case '/':
case '^':
case '.':
case '&':
case '|':
case '~':
{
append_char_to_builder();
token_type = Token_Type.Operator;
}
break;
case '>':
case '<':
{
append_char_to_builder(); // >, <
if (next_char == '=')
{
append_char_to_builder(); // >=, <=
}
token_type = Token_Type.Operator;
}
break;
case '=':
{
append_char_to_builder();
if (next_char == '>') // =>
{
append_char_to_builder();
token_type = Token_Type.Arrow;
}
else if (next_char == '=') // ==
{
append_char_to_builder();
token_type = Token_Type.Operator;
}
else
{
token_type = Token_Type.Assignment; // =
}
}
break;
case '!':
{
append_char_to_builder();
if (next_char == '=') // !=
{
append_char_to_builder();
token_type = Token_Type.Operator;
}
else
{
throw new Exception();
}
}
break;
case ':':
{
append_char_to_builder();
token_type = Token_Type.Colon;
}
break;
case ';':
{
append_char_to_builder();
token_type = Token_Type.Semicolon;
}
break;
case ',':
{
append_char_to_builder();
token_type = Token_Type.Comma;
}
break;
case -1: token_type = Token_Type.Terminator; break;
default: throw new Exception();
}
}
}
public Token(Token_Type tp, string le, double d, FuncPtr fp)
{
type = tp; lexico = le; value = d; funcPtr = fp;
}
private void SetOperatorString(Token_Type input)
{
switch (input)
{
case Token_Type.Null:
Operator_String = null;
break;
case Token_Type.Constant:
Operator_String = "*-c";
break;
case Token_Type.String:
Operator_String = "*-s";
break;
case Token_Type.Cell:
Operator_String = "*-d";
break;
case Token_Type.Add:
Operator_String = "+";
break;
case Token_Type.Subtract:
Operator_String = "-";
break;
case Token_Type.Multiply:
Operator_String = "*";
break;
case Token_Type.Divide:
Operator_String = "/";
break;
case Token_Type.Exponent:
Operator_String = "^";
break;
case Token_Type.LessThan:
Operator_String = "<";
break;
case Token_Type.GreaterThan:
Operator_String = ">";
break;
case Token_Type.Function:
Operator_String = (string)this.Value;
break;
case Token_Type.LeftParen:
Operator_String = "(";
break;
case Token_Type.RightParen:
Operator_String = ")";
break;
case Token_Type.Range:
Operator_String = ":";
break;
case Token_Type.SheetReferenceStart:
Operator_String = "";
break;
default:
Operator_String = "";
break;
}
}
public Token(Token_Type Type, float Value)
{
this.Type = Type;
this.Value = (float)Value;
SetOperatorString(Type);
}
public Token(Token_Type Type, string Value)
{
this.Type = Type;
this.Value = (string)Value;
SetOperatorString(Type);
}
public Token()
{
//null constructor
Type = Token_Type.Null;
}
public CToken()
{
m_str = "";
m_token = Token_Type.Token_Unknown;
}
public CToken(string _str)
{
m_str = _str;
m_token = Token_Type.Token_Unknown;
}
public Token(String value, Token_Type type, Location loc)
{
this.value = value;
this.type = type;
this.loc = loc;
}
