auto replace issue

[sukhadukkham]

i tried to define some auto-replace statements and found the following:
to not affect table-names i tried to put a special character before the replacement:
!dual=select * from dual;

this is not working. without the special character everything is fine. is this intended? and, if yes, why?

regards
daniel

 

[Marco Kalter]

You can indeed not use characters that not valid identifier characters: all alpanumeric characters + # + $ + _.

 

[sukhadukkham]

_ is working that's enough for me