Pascal code checker!

[SMALLp]

Hy! I desperately need help!

I need to make application that would accept Pascal code and check if it 
returns good results.

My idea is (from a beginner point of view) to make application in python 
that would send code (text) to pascal compiler (Free pascal compiler 
that can be used from command prompt in windows) and it would return 
result and then application would show that result.

Problem starts Here. I have no idea what to search for and where to even 
start. So what i need is some help (better say ideas) what to search and 
what to do. Please help, I have a lot of time and will to learn. I only 
need to know what.

		Thanks in advance!