Auto substitution of html special chars

[StickGrinder]

I didn't find any topic about that so here is my own.
I was used to work with Macromedia HomeSite+ and it have a very nice feature: auto substitution of html special chars while typing.
For example, character

ĆØ

will become

è

automatically when it is typed. I tried generic auto-subtitution found in options menu in RapidPHP but it only works if I insert a spacing character (space, tab or so) after the special char I would like to be substituted. No other way to have it automatically changed.

Thanks a lot! Bye bye!

[Karlis]

For example, character

ĆØ

will become

ĆØ

I'm afraid I do not fully understand the requirement.

[StickGrinder]

Sorry, you're right!

character

ĆØ

should become

è

I thook the characters where escaped by default, instead I have to disable html in my post...