From: Chris Hanson <org/chris-hanson/cph>
Date: Sat, 30 Oct 2004 03:59:06 +0000 (+0000)
Subject: Add HOOK-IN-LIST?.
X-Git-Tag: 20090517-FFI~1498
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=180e442ef2b0e94acc1b9c07aade6da8f2ab3c9e;p=mit-scheme.git

Add HOOK-IN-LIST?.
---

diff --git a/v7/src/runtime/global.scm b/v7/src/runtime/global.scm
index 284664c6a..2e1ed9b56 100644
--- a/v7/src/runtime/global.scm
+++ b/v7/src/runtime/global.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: global.scm,v 14.69 2004/10/30 03:56:14 cph Exp $
+$Id: global.scm,v 14.70 2004/10/30 03:58:54 cph Exp $
 
 Copyright 1988,1989,1991,1992,1993,1995 Massachusetts Institute of Technology
 Copyright 1998,2000,2001,2003,2004 Massachusetts Institute of Technology
@@ -426,6 +426,10 @@ USA.
 		    prev)
 		  alist)))))
 
+(define (hook-in-list? hook-list key)
+  (guarantee-hook-list hook-list 'HOOK-IN-LIST?)
+  (if (assq key (hook-list-hooks hook-list)) #t #f))
+
 (define (run-hooks-in-list hook-list . arguments)
   (guarantee-hook-list hook-list 'RUN-HOOKS-IN-LIST)
   (for-each (lambda (p)
diff --git a/v7/src/runtime/runtime.pkg b/v7/src/runtime/runtime.pkg
index 7ab4b3f19..1c5c9cb66 100644
--- a/v7/src/runtime/runtime.pkg
+++ b/v7/src/runtime/runtime.pkg
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: runtime.pkg,v 14.505 2004/10/30 03:56:39 cph Exp $
+$Id: runtime.pkg,v 14.506 2004/10/30 03:59:06 cph Exp $
 
 Copyright 1988,1989,1990,1991,1992,1993 Massachusetts Institute of Technology
 Copyright 1994,1995,1996,1997,1998,1999 Massachusetts Institute of Technology
@@ -293,6 +293,7 @@ USA.
 	  get-fixed-objects-vector
 	  get-interrupt-enables
 	  guarantee-hook-list
+	  hook-in-list?
 	  hook-list?
 	  hook/exit
 	  hook/quit