Update

version0.11/nasal_lexer.h

@@ -11,14 +11,7 @@
 #define NUMBER       3  // number
 #define RESERVEWORD  4  // reserve word
 #define STRING       5  // string 
-#define CHAR         6  // char
+#define DYNAMIC_ID   6 // id...
-#define CALL_LIST    7  // id[
-#define CALL_FUNC    8  // id(
-#define FUNC_HEAD    9  // func(
-#define DYNAMIC_ID   10 // id...
-#define IF_HEAD      11 // if (
-#define ELSIF_HEAD   12 // elsif (
-#define WHILE_HEAD   13 // while (
 #define FAIL        -1  //fail
 #define SCANEND     -2  //complete scanning
 #define ERRORFOUND  -3  //error occurred
@@ -176,33 +169,11 @@ class nasal_lexer
 					syn=IDENTIFIER;
 				else
 					syn=RESERVEWORD;
-				if((syn==IDENTIFIER) && ((source[ptr]=='(') || (source[ptr]=='[') || (source[ptr]=='.' && source[ptr+1]=='.' && source[ptr+2]=='.')))
+				if((syn==IDENTIFIER) && source[ptr]=='.' && source[ptr+1]=='.' && source[ptr+2]=='.')
 				{
-					__token+=source[ptr];
+					__token+="...";
-					if(source[ptr]=='(')
+					syn=DYNAMIC_ID;
-						syn=CALL_FUNC;
+					ptr+=3;
-					else if(source[ptr]=='[')
-						syn=CALL_LIST;
-					else if(source[ptr]=='.' && source[ptr+1]=='.' && source[ptr+2]=='.')
-					{
-						__token+="..";
-						syn=DYNAMIC_ID;
-						ptr+=2;
-					}
-					++ptr;
-				}
-				else if((syn==RESERVEWORD) && ((__token=="func") || (__token=="if") || (__token=="elsif") || (__token=="while")) && (source[ptr]=='('))
-				{
-					if(__token=="func")
-						syn=FUNC_HEAD;
-					else if(__token=="if")
-						syn=IF_HEAD;
-					else if(__token=="elsif")
-						syn=ELSIF_HEAD;
-					else if(__token=="while")
-						syn=WHILE_HEAD;
-					__token+=source[ptr];
-					++ptr;
 				}
 			}
 			else if(isNumber(temp))
@@ -263,17 +234,40 @@ class nasal_lexer
 			}
 			else if(temp=='\'')
 			{
+				syn=STRING;
 				__token+=temp;
 				++ptr;
 				temp=source[ptr];
-				__token+=temp;
+				while(temp!='\'')
-				++ptr;
+				{
-				temp=source[ptr];
+					if(temp=='\\')
-				__token+=temp;
+					{
-				++ptr;
+						__token+=temp;
-				if(temp!='\'')
+						
-					std::cout<<">>[Lexer] Abnormal char type detected: "<<__token<<" ."<<std::endl;
+						++ptr;
-				syn=CHAR;
+						temp=source[ptr];
+						__token+=temp;
+						
+						++ptr;
+						temp=source[ptr];
+					}
+					else
+					{
+						__token+=temp;
+						++ptr;
+						temp=source[ptr];
+					}
+					if(temp==0 || temp=='\n')
+						break;
+				}
+				//add the last char \"
+				if(temp=='\'')
+				{
+					__token+=temp;
+					++ptr;
+				}
+				else
+					__token+=" __missing_end_of_string";
 			}
 			else if(temp=='=' || temp=='+' || temp=='-' || temp=='*' || temp=='!' || temp=='/' || temp=='<' || temp=='>' || temp=='~')
 			{
@@ -396,22 +390,8 @@ class nasal_lexer
 					std::cout<<"( ReserveWord    | ";
 				else if(temp.type==STRING)
 					std::cout<<"( String         | ";
-				else if(temp.type==CHAR)
-					std::cout<<"( Char           | ";
-				else if(temp.type==CALL_LIST)
-					std::cout<<"( Call list head | ";
-				else if(temp.type==CALL_FUNC)
-					std::cout<<"( Call func head | ";
-				else if(temp.type==FUNC_HEAD)
-					std::cout<<"( Func head      | ";
 				else if(temp.type==DYNAMIC_ID)
 					std::cout<<"( Identifier     | ";
-				else if(temp.type==IF_HEAD)
-					std::cout<<"( If head        | ";
-				else if(temp.type==ELSIF_HEAD)
-					std::cout<<"( Elsif head     | ";
-				else if(temp.type==WHILE_HEAD)
-					std::cout<<"( While head     | ";
 				std::cout<<temp.content<<" )"<<std::endl;
 			}
 			return;

version0.11/nasal_parser.h

@@ -8,30 +8,28 @@ enum token_type
 {
 	__stack_end=1,
 	__equal,// =
-	__cmp_equal,// ==
+	__cmp_equal,__cmp_not_equal,// == !=
-	__cmp_not_equal,// !=
 	__cmp_less,__cmp_less_or_equal,// < <=
 	__cmp_more,__cmp_more_or_equal,// > >=
 	__and_operator,__or_operator,__nor_operator,// and or !
-	__add_operator,__sub_operator,__mul_operator,__div_operator,__link_operator,// + - * / ~
+	__add_operator,__sub_operator,// + -
-	__add_equal,__sub_equal,__mul_equal,__div_equal,__link_equal,// += -= *= /= ~=
+	__mul_operator,__div_operator,__link_operator,// * / ~
+	__add_equal,__sub_equal,// += -=
+	__mul_equal,__div_equal,__link_equal,// *= /= ~=
 	__left_brace,__right_brace,// {}
 	__left_bracket,__right_bracket,// []
 	__left_curve,__right_curve,// ()
-	__semi,// ;
+	__semi,__comma,__colon,__dot,// ; , : .
-	__comma,// ,
+
-	__colon,// :
+	__var,__func,__return,
-	__dot,// .
-	__var,
-	__func,
-	__id,__dynamic_id,
-	__return,
 	__if,__elsif,__else,
-	__continue,__break,__for,__forindex,__foreach,__while,
+	__id,__dynamic_id,
+	__continue,__break,
+	__for,__forindex,__foreach,__while,
 	//end of operators & reserve words
 	__two_operator,
 	__scalar,__data_list,
-	__number,__string,__char,
+	__number,__string,
 	__list,
 	__hash,
 	__hash_member,__hash_member_list,
@@ -81,7 +79,6 @@ cmp_seq par[]=
 
 	{{__number},__scalar},
 	{{__string},__scalar},
-	{{__char},__scalar},
 	{{__calculation},__scalar},
 
 	{{__call_list},__call},
@@ -442,9 +439,6 @@ void print_token(int type)
 		case __string:
 			context="string";
 			break;
-		case __char:
-			context="char";
-			break;
 		case __continue:
 			context="continue";
 			break;
@@ -818,14 +812,12 @@ class nasal_parser
 					else if((*i).content==".")
 						temp_parse.type=__dot;
 				}
-				else if(((*i).type==NUMBER) || ((*i).type==STRING) || ((*i).type==CHAR))
+				else if(((*i).type==NUMBER) || ((*i).type==STRING))
 				{
 					if((*i).type==NUMBER)
 						temp_parse.type=__number;
 					else if((*i).type==STRING)
 						temp_parse.type=__string;
-					else if((*i).type==CHAR)
-						temp_parse.type=__char;
 				}
 				else if(((*i).content=="+") || ((*i).content=="-") || ((*i).content=="*") || ((*i).content=="/") || ((*i).content=="~") || ((*i).content=="!"))
 				{