add utils.scm

[mudsync.git] / mudsync / utils.scm

diff --git a/mudsync/utils.scm b/mudsync/utils.scm
new file mode 100644 (file)
index 0000000..e757258
--- /dev/null
+++ b/mudsync/utils.scm
@@ -0,0 +1,27 @@
+;;; 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)))))
+