kekkonen/io.scm

67 lines
1.7 KiB
Scheme

(module io (display-newline display-lines show adventure-prompt prompt prompt-default prompt-yn)
(import scheme)
(import chicken.base)
(import srfi-1)
(import srfi-13)
(import fmt)
(import fmt-color)
(import breadline)
(import ncurses)
(import util)
(import comparse)
(import parse)
(define display-newline
(compose (just newline) display))
(define (display-lines ln)
(perhaps (curry map display-newline) ln))
(define (show str)
(fmt #t (dsp (wrap-lines str))))
(define (prompt str)
(newline)
(let ((result (readline str)))
(if (equal? "" result)
(prompt str)
(begin
(add-history! result)
result))))
(define (prompt-yn str)
(newline)
(let ((result (string-downcase (readline str))))
(cond ((equal? "yes" result) #t)
((equal? "no" result) #f)
(else (begin
(newline)
(display "Please answer yes or no.")
(prompt-yn str))))))
(define (prompt-default str default)
(map stuff-char (string->list default))
(let loop ()
(let ((result (readline str)))
(if (equal? "" result)
(loop)
result))))
(define +articles-prepositions+
'(a an the into on to at as))
(define (adventure-prompt)
(let ((result (parse-line (prompt "> "))))
(if result
(let ((grug-result (filter (compose not (cut member <> +articles-prepositions+)) result)))
(if (not (null? grug-result))
grug-result
(begin (display "I didn't quite understand that.")
(adventure-prompt))))
(begin (display "I didn't quite understand that.")
(adventure-prompt))))))
; (define parse-formatter
; (recursive-parser (one-or-more (any-of (followed-by-consuming (char-seq "<b>") (lift fmt-bold parser))
; (is-not #\<))))))