Java EE (Java Enterprise Edition) General Discussion

Hello All

I'm a just a beginner and I'm need to write a web page that is totally based on JSTL. I found out that the standard java tab lib in JSTL doesnt really support string manipulation or regular expression like in perl.

As such, I would like to know what are the different options (like adding servlets/javabeans/etc) can i add to my JSTL page so that i can perform complex string manipulation to a data entered by the user in the text box?

Some of the operations that I wish to carry out on the data are:

1. check if data contains certain characters, strings
2. joining and spliting strings
3. find length of the string
4. find the position of certain character in a string
5. check if string match certain pattern.
and many more.

Would greatly appreciate if you guys can help to provide some light.

Regards
Beginner....