>Are you testing me if I could make it bulletproof for all type of search and replace strings:) As I said if I ever need this really I'd create a FLL instead. I don't plan to find a bulletproof code.
>Cetin

Cetin,
Simply a code that can work with this logic,
for every input string with a max lenght,
doesn't exist.

Of course, the rule of the VFPT can be applied:
"the program is designed for working only where it works". :)