;; The first three lines of this file were inserted by DrScheme. They record metadata ;; about the language level of this file in a form that our tools can easily process. #reader(lib "htdp-intermediate-lambda-reader.ss" "lang")((modname stop) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ()))) (require 2htdp/universe) (require htdp/image) ;; on RETURN stop (define (main debug?) (big-bang "" (on-key (lambda (w ke) (cond [(key=? ke "\r") (stop-with w)] [(= (string-length ke) 1) (string-append w ke)] [else w]))) (state debug?) (on-draw (lambda (w) (place-image (text w 22 'black) 3 3 (empty-scene 100 100))))))