1 ;;; Click --- Command Line Interface Creation Kit for GNU Guile
2 ;;; Copyright © 2021 Javier Sancho <jsf@jsancho.org>
4 ;;; This file is part of Click.
6 ;;; Click is free software; you can redistribute it and/or modify it
7 ;;; under the terms of the GNU General Public License as published by
8 ;;; the Free Software Foundation; either version 3 of the License, or
9 ;;; (at your option) any later version.
11 ;;; Click is distributed in the hope that it will be useful, but
12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 ;;; General Public License for more details.
16 ;;; You should have received a copy of the GNU General Public License
17 ;;; along with Click. If not, see <http://www.gnu.org/licenses/>.
20 (define-module (click util)
21 #:use-module (ice-9 readline)
22 #:use-module (click constant)
23 #:export (getopt-long-option-spec
29 (define %program-name (make-fluid "guile"))
30 (define (program-name)
31 (fluid-ref %program-name))
33 (define (getopt-long-option-spec option-spec)
36 (cons (list 'value (not (option-property option 'flag)))
37 (filter (lambda (property)
38 (not (memq (car property) CLICK_PROPERTIES)))
42 (define* (option-property option property-name #:optional (default #f))
43 (let ((property (assq property-name (cdr option))))
48 (define* (option-default-value option #:optional (no-prompt #f))
49 "Get default value for option, asking user if prompt property is set"
50 (let ((default (option-property option 'default)))
52 (let ((prompt (option-property option 'prompt)))
54 (readline (format #f "~a: " prompt))