BI Publisher RTF Templates - Using Arrays

Hello all,

I am working on a BI Publisher RTF template for academic transcripts in PeopleSoft Campus Solutions. I have limited experience with BI Publisher, so please forgive me if these questions are poorly stated.

I have learned how to build an associative array. I am using a numbered value pair, so the students first academic career is 1:career1, second academic career is 2:career2 and so on. Now I want to loop through the array to get each career one at a time, but I don't know how many key value pairs are stored for a given student.

Can anyone tell me how to loop through arrays in an RTF template? Is there something like a "while" loop I can use in RTF templates? If not, is there a way to use a for-each loop?