[racket] anyone get stuck in prefix notation?

2010-09-26 Thread Isaiah Gilliland
I was helping my younger brother do some math the other day when he pointed to what I'd written and told me I'm doing it wrong. I then realized I had written a whole problem in prefix notation without realizing it LOL. Anyone else find yourself doing this in math or in other languages like python?

[racket] keyboard input help?

2010-09-20 Thread Isaiah Gilliland
I was wanting to see if there was at all a way to do asynchronous input from a keyboard in racket. Kinda like tcp-listen, that won't freeze up the program while it's used, and won't show in the terminal. I've just finished my first small utility in Scheme and want to move to something a bit more co

[racket] bracket code converter to parens

2010-09-16 Thread Isaiah Gilliland
This is the utility I've been working on that had me posting on here for help from time to time. I enjoy programming in scheme probably more then CL because of its simplicity, but I wanted to check out and go through some common lisp books like Practical Common Lisp(which is awesome). But I find it

[racket] Getting program options/arguments?

2010-09-16 Thread Isaiah Gilliland
I know many programs that accept input while calling the program like: "program -o option" I'd really like to use this for my next few projects but I'm not even really sure where to even look for information. I've been scouring the racket I/O docs and even the r6rs docs, but haven't found anything

[racket] command prompt

2010-09-12 Thread Isaiah Gilliland
I've been trying to figure out how to create a cli app. My first issue is to create a prompt for the user to enter text so I can use what they enter. I've somewhat found out how to make outside commands to other programs, but I've ben scouring the documentation for some time and I can't find what