+@class, CLASS, NORID
+@compatibility_alias, ALIAS, NORID
+@defs, DEFS, NORID
+@encode, ENCODE, NORID
+@end, END, NORID
+@implementation, IMPLEMENTATION, NORID
+@interface, INTERFACE, NORID
+@private, PRIVATE, NORID
+@protected, PROTECTED, NORID
+@protocol, PROTOCOL, NORID
+@public, PUBLIC, NORID
+@selector, SELECTOR, NORID