r11412: warn on empty files -- occurs when subsetting UMLS

[umlisp.git] / utils.lisp

diff --git a/utils.lisp b/utils.lisp
index 208a87e1ba4f6dbc0d2c40ee799b3b46be061c7e..9fc23e4b8befa07d6a6a60c3819f1076d4009a51 100644 (file)
--- a/utils.lisp
+++ b/utils.lisp
@@ -10,7 +10,7 @@
 ;;;; $Id$
 ;;;;
 ;;;; This file, part of UMLisp, is
-;;;;    Copyright (c) 2000-2004 by Kevin M. Rosenberg, M.D.
+;;;;    Copyright (c) 2000-2006 by Kevin M. Rosenberg, M.D.
 ;;;;
 ;;;; UMLisp users are granted the rights to distribute and use this software
 ;;;; as governed by the terms of the GNU General Public License.
@@ -85,6 +85,15 @@
            (nth-value 0 (parse-integer aui))))
     aui))
 
+(defun parse-rui (rui)
+  (declare (optimize (speed 3) (safety 0)))
+  (if (stringp rui)
+      (let ((ch (schar rui 0)))
+       (if (char-equal ch #\R)
+           (parse-ui rui)
+          (nth-value 0 (parse-integer rui))))
+    rui))
+
 (defun parse-eui (eui)
   (declare (optimize (speed 3) (safety 0)))
   (if (stringp eui)