From cfada7d1e97d01540bf3f457ccd9d7810cf489b3 Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Wed, 3 Apr 1991 00:12:07 +0000
Subject: [PATCH] Fix think-o in `group-delete!'.

---
 v7/src/edwin/grpops.scm | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/v7/src/edwin/grpops.scm b/v7/src/edwin/grpops.scm
index 849502ed3..66b87d5ef 100644
--- a/v7/src/edwin/grpops.scm
+++ b/v7/src/edwin/grpops.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/edwin/grpops.scm,v 1.9 1991/04/02 19:55:46 cph Exp $
+;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/edwin/grpops.scm,v 1.10 1991/04/03 00:12:07 cph Exp $
 ;;;
 ;;;	Copyright (c) 1986, 1989-91 Massachusetts Institute of Technology
 ;;;
@@ -169,8 +169,10 @@
 	     (for-each-mark group
 	       (lambda (mark)
 		 (let ((index (mark-index mark)))
-		   (if (fix:>= index end)
-		       (set-mark-index! mark (fix:- index length)))))))
+		   (cond ((fix:> index end)
+			  (set-mark-index! mark (fix:- index length)))
+			 ((fix:>= index start)
+			  (set-mark-index! mark start)))))))
 	   (vector-set! group group-index:gap-start start)
 	   (let ((gap-end (fix:+ end (group-gap-length group)))
 		 (max-gap-length gap-maximum-extra))
-- 
2.25.1