mudsync/mudsync/utils.scm

;;; Mudsync --- Live hackable MUD
;;; Copyright © 2017 Christopher Allan Webber <cwebber@dustycloud.org>
;;;
;;; This file is part of Mudsync.
;;;
;;; Mudsync is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; Mudsync is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mudsync.  If not, see <http://www.gnu.org/licenses/>.

(define-module (mudsync utils)
  #:use-module (srfi srfi-1)
  #:export (ci-member))

(define (ci-member x lst)
  "Case insensitive member check"
  (member x lst (lambda (x y)
                  (equal? (string-downcase x) (string-downcase y)))))