add: some op

DragonLisp.l

@@ -33,6 +33,12 @@ blank	[ \t\v\r]
 {blank}+	{ loc->step(); }
 \n+			{ loc->lines(yyleng); loc->step(); }
 
+"<="    { return token::TOKEN_LE; }
+">="    { return token::TOKEN_GE; }
+"<"		{ return token::TOKEN_LT; }
+">"		{ return token::TOKEN_GT; }
+"="		{ return token::TOKEN_EQUAL; }
+"/="	{ return token::TOKEN_NE; }
 "("		{ return token::TOKEN_LPAREN; }
 ")"		{ return token::TOKEN_RPAREN; }
 "+"		{ return token::TOKEN_PLUS; }

DragonLisp.y

@@ -41,6 +41,12 @@ namespace DragonLisp {
 %define parse.assert
 
 %token
+    LE	    "<="
+    GE	    ">="
+    EQUAL   "="
+    NE	    "/="
+    LT	    "<"
+    GT	    ">"
     LPAREN  "("
     RPAREN  ")"
     PLUS    "+"

DragonLispDriver.hh

@@ -20,13 +20,6 @@ public:
 	void error(const DLParser::location_type& l, const std::string& m);
 	void error(const std::string& m);
 
-	enum Operator {
-		PLUS,
-		MINUS,
-		MULTIPLY,
-		DIVIDE
-	};
-
 private:
 	DLParser* parser = nullptr;
 	DLScanner* scanner = nullptr;

token.h

@@ -4,10 +4,16 @@
 namespace DragonLisp {
 
 enum Token {
+	LE,
+	GE,
+	EQUAL,
+	NE,
+	LT,
+	GT,
     PLUS,
     MINUS,
     MULTIPLY,
-    DIVIDE
+    DIVIDE,
 };
 
 }