Caller ID project - part two

OK - it's been, ahem, "several" years since I've done any serious programming in C.

But, the way I see it, it's just like falling off a bike:  once you forget about it, it hurts more the next time you do it...

In any case, I've got a basic parser coded.  The pseudo code looks something like this right now:

Magically acquire Caller ID string 

Look for "MESG=80" in the input string 

If you find it 

    Retrieve the message length 

    While there's still message left to parse 

        Get the field type 

        Get the field length 

        Get the field 

    end while 

end if

I'm rather embarrassed to say that coding this took a couple of hours using Xcode on the Mac.  It's not pretty - it currently looks like the C equivalent of duct tape.  

Challenges:

Remember how to do string/array manipulation in C 

Convert strings of hex characters to numbers

Next steps

Clean up code (subroutine-ize it, abstract the code for field handling, make it pretty, etc.) 

Implement a read-string-from-USB function

Write date/time and number somewhere that the web server can find and use it

Figure out how to serve this information on a web server

Figure out how to get the information on an LCD display

Wire everything up

Put it in a case