@@ -156,9 +156,9 @@
 	public static {
 		bool isSpace   (dchar c) { return std.ctype.isspace(c)!=0; }
 		bool isSymbol  (dchar c) { return 0x21<=c && c<=0x7f && !std.ctype.isalnum(c) && c!='_' && c!='\''; }
 		bool isSSymbol (dchar c) { return !find("()[]{};", c).empty; }
-		bool isMSymbol (dchar c) { return isSymbol(c) && !isSSymbol(c); }
+		bool isMSymbol (dchar c) { return isSymbol(c) && !isSSymbol(c) && c!='"' && c!='#'; }
 		bool isLetter  (dchar c) { return !isSpace(c) && !isSymbol(c); }
 	}
 
 	string readQuoted(const LexPosition pos){char[] buf; return readQuoted(pos,buf);}
@@ -352,8 +352,16 @@
 	assert( lex2.empty );
 	assert( !lex3.empty );
 	assert_eq( lex3.front.str, "5" );
 }
+
+unittest
+{
+	auto lex = lexerFromString(`=""`);
+	assert_eq(lex.front.str, "="); lex.popFront;
+	assert_eq(lex.front.str, ""); lex.popFront;
+	assert( lex.empty );
+}
 
 /// Forward range for reader character by character,
 /// keeping track of position information and caring \r\n -> \n conversion.