Scan Abap program to identify Functionmodules, Transactions,Methods,Workflows

Hi,

I need to scan all custom Reports, BAPI's, IDOCS,Workflows,Transactions e.t.c and find what are the following used in them.

1) Function Modules ( Call Function)

2) Transactions         ( Call Transactions)

3) Methods

4) Workflows

5) BDC

I am thinking to use SCAN ABAP PROGRAM for that, please suggest how to make use of it.

In this scenario, i should find all the above list if available, There is no concept like finding a string in a program as with RPR_ABAP_SOURCE_SCAN.

Thanks