added simple restartable exceptions

s48/exceptions/AUTHORS

@@ -1,3 +1,3 @@
 Richard Kelsey
 Michael Sperber
-(port to sunterlib by Eric Knauel)
+(restart.scm and port to sunterlib by Eric Knauel)

s48/exceptions/BLURB

@@ -1 +1,2 @@
-An exception and condition system for Scheme
+SRFI-34/34: An exception and condition system for Scheme
+restart: simple restartable exceptions with SRFI-34/35

s48/exceptions/interfaces.scm

@@ -22,3 +22,7 @@
    &serious serious-condition?
    &error error?))
 
+(define-interface srfi-34-restart-interface
+  (export
+   (raise-restartable :syntax)
+   (restart :syntax)))

s48/exceptions/packages.scm

@@ -9,3 +9,8 @@
 	srfi-1
 	srfi-9)
   (files srfi-35))
+
+(define-structure srfi-34-restart srfi-34-restart-interface
+  (open scheme
+	srfi-34 srfi-35)
+  (files restart))