00001 #ifndef TOKEN_H
00002 #define TOKEN_H
00003 
00004 #include "SundanceDefs.h"
00005 
00006 #include <string>
00007 #include <iostream>
00008 
00009 namespace Sundance
00010 {
00011 
00012   using namespace TSF;
00013   using std::string;
00014 
00015   using std::ostream;
00016 
00017 
00018   enum TokenType {TT_Unknown, TT_Assign, TT_OpenParen, TT_CloseParen,
00019                   TT_OpenBracket, TT_CloseBracket, TT_OpenBrace,
00020                   TT_CloseBrace, TT_Comma, TT_Plus, TT_Minus, TT_Times,
00021                   TT_Divide, TT_Constant, TT_Name, TT_Equal,
00022                   TT_LessThan, TT_GreaterThan, TT_LessThanOrEqual,
00023                   TT_GreaterThanOrEqual, TT_And, TT_Or,
00024                   TT_Not, TT_NotEqual, TT_End};
00025 
00026   class Token
00027     {
00028     public:
00029       Token() : tok_(), type_(TT_Unknown) {;}
00030       Token(const string& tok);
00031 
00032       bool isUnknown() const {return type_==TT_Unknown;}
00033 
00034       bool isAssign() const {return type_==TT_Assign;}
00035       bool isOpenParen() const {return type_==TT_OpenParen;}
00036       bool isCloseParen() const {return type_==TT_CloseParen;}
00037       bool isOpenBrace() const {return type_==TT_OpenBrace;}
00038       bool isCloseBrace() const {return type_==TT_CloseBrace;}
00039       bool isOpenBracket() const {return type_==TT_OpenBracket;}
00040       bool isCloseBracket() const {return type_==TT_CloseBracket;}
00041       bool isComma() const {return type_==TT_Comma;}
00042 
00043       bool isPlus() const {return type_==TT_Plus;}
00044       bool isMinus() const {return type_==TT_Minus;}
00045       bool isTimes() const {return type_==TT_Times;}
00046       bool isDivide() const {return type_==TT_Divide;}
00047 
00048       bool isConstant() const {return type_==TT_Constant;}
00049       bool isName() const {return type_==TT_Name;}
00050 
00051       bool isEquality() const {return type_==TT_Equal;}
00052       bool isLessThan() const {return type_==TT_LessThan;}
00053       bool isGreaterThan() const {return type_==TT_GreaterThan;}
00054       bool isLessThanOrEqual() const {return type_==TT_LessThanOrEqual;}
00055       bool isGreaterThanOrEqual() const {return type_==TT_GreaterThanOrEqual;}
00056       bool isAnd() const {return type_==TT_And;}
00057       bool isOr() const {return type_==TT_Or;}
00058       bool isNot() const {return type_==TT_Not;}
00059       bool isNotEqual() const {return type_==TT_NotEqual;}
00060 
00061       bool isEnd() const {return type_==TT_End;}
00062 
00063       double value() const ;
00064       const string& name() const ;
00065 
00066       const string& tok() const {return tok_;}
00067       void print(ostream& os) const {os << tok_;}
00068     private:
00069       string tok_;
00070       TokenType type_;
00071     };
00072 
00073   inline ostream& operator<<(ostream& os, const Token& t)
00074     {
00075       t.print(os);
00076       return os;
00077     }
00078 
00079 }
00080 #endif
Token.h
