Apparently the answer is that it's not possible to turn off this errant '@'
behavior. The choices are to:
1) add backslash in the source code (\@) where needed (not well defined)
2) add backslash in the input filter in particular places, or
3) post-process the HTML output to correct the mistakes
My source code has three comments where Doxygen deletes @ signs from the
generated HTML:
/// [logIn setScopes:[NSArray
arrayWithObject:@"https://www.googleapis.com/auth/login";]];
@interface LogIn : NSObject
/// The default value is |@[@"https://www.xxx.com/auth/login";]|.
@property(nonatomic, co
