Case should really never matter almost every language has some library with a pre-written function to change case. C++ has tolower and toupper. Easy.

I'd honestly suggest using Java though, basically what I wrote could be slapped into Java or C++ (they have the same syntax).

Ew, Fortran. Can you hear it? All the programmers going insane when they get a compile error AFTER EIGHT HOURS OF COMPILING! ... on the older versions that is.

WC, I'd just suggest looking at some other data structures then JUST an array. I mean, a hash table would work pretty well I'd imagine, but again, I doubt Delphi has the ability.

Also, for Java editing, if you HAVE to use a suite (which I actually suggest) use Eclipse or something as such. It's pretty damn nice. They're releasing some C and C++ plug-ins too.

I just don't think you know enough to really solve this problem, and your choice for language is terrible. It's just going to make things harder. You're SUPPOSE to choose a suitable language for your problem and what you'd like to achieve (speed = C, Super Speed = Asm, polymorphism = C++, pseudo-OOP = Java, etc.)

[EDIT]

Maybe you should read up on Delphi arrays and then come back to this thread.