I can now make code like this:
sub @A @X’ by @A_ALT;
Now I want to code to make it do that but only when not preceded by @A. I tried finding how in the manual and tutorials and forum but can’t find it. Something like:
sub [everything except for @A] @A’ @X by @A_ALT;
How would I code that properly?
I then need a little more complicated, something like this is you know what I mean:
sub [everything except for: @A or (@A @B) or (@A @C)] @A’ @X by @A_ALT;
What I mean by " [everything except for: @A or (@A @B) or (@A @C)] " is, except when preceded by @A; or by @A then @B, or by @A then @C.