Fix SIGSEGV generated by M-x isearch-forward-regexp when input was

"[^".

diff --git a/v7/src/runtime/rgxcmp.scm b/v7/src/runtime/rgxcmp.scm
index 75b01ebd2ab09b39b42924327d5978bb2a80e08d..7cb596b784e83251af754765587a8d2809d4bb69 100644 (file)
--- a/v7/src/runtime/rgxcmp.scm
+++ b/v7/src/runtime/rgxcmp.scm
@@ -1,8 +1,9 @@
 #| -*-Scheme-*-
 
-$Id: rgxcmp.scm,v 1.124 2003/02/14 18:28:33 cph Exp $
+$Id: rgxcmp.scm,v 1.125 2005/06/27 06:12:45 cph Exp $
 
-Copyright 1986, 1989-2002 Massachusetts Institute of Technology
+Copyright 1987,1989,1990,1991,1995,1997 Massachusetts Institute of Technology
+Copyright 1999,2001,2002,2005 Massachusetts Institute of Technology
 
 This file is part of MIT/GNU Scheme.
 
@@ -674,6 +675,8 @@ USA.
           (and (input-match? (input-peek) #\^)
                (begin (input-discard!) #t)))
          (charset (make-string 32 (ascii->char 0))))
+      (if (input-end?)
+         (premature-end))
       (let loop
          ((chars
            (if (input-match? (input-peek) #\])