beautiful-racket/beautiful-racket-demo/basic-demo-3/main.rkt

#lang br/quicklang
(require "parser.rkt" "tokenizer.rkt")

(module+ reader
  (provide read-syntax get-info))

(define (read-syntax path port)
  (define parse-tree (parse path (make-tokenizer port path)))
  (strip-bindings
   #`(module basic-mod basic-demo-3/expander
       #,parse-tree)))

(define (get-info port mod line col pos)
    (define (handle-query key default)
      (case key
        [(color-lexer)
         (dynamic-require 'basic-demo-3/colorer 'basic-colorer)]
        [else default]))
    handle-query)