--- a/SnapShotImage.st	Wed Jan 10 15:31:39 2001 +0100
+++ b/SnapShotImage.st	Thu Jan 25 11:19:21 2001 +0100
@@ -1,4 +1,4 @@
-"{ Package: 'stx:libtool' }"
+"{ Package: 'stx:libtool2' }"
 
 Object subclass:#SnapShotImage
 	instanceVariableNames:'memory globals'
@@ -7,6 +7,22 @@
 	category:'System-Support'
 !
 
+!SnapShotImage class methodsFor:'documentation'!
+
+documentation
+"
+    I simulate a Smalltalk environment as present in a snapshot image.
+    My protocol mimics the NameSpace (i.e. class-environment) protocol,
+    and I can be used as a Browsers environment, in order to open a
+    browser into an old snapShot image (st.img - file).
+
+    I am not used directly; instead, via the SystemBrowsers entry:
+        SystemBrowser openOnSnapShotImage:'/export/home/cg/work/stx/projects/smalltalk/st.img'
+
+    [author:]
+        Claus Gittinger
+"
+! !
 
 !SnapShotImage class methodsFor:'instance creation'!
 
@@ -33,7 +49,8 @@
 for:aFilename
     memory := SnapShotImageMemory for:aFilename.
     memory image:self.
-    memory readHeader! !
+    memory readHeader
+! !
 
 !SnapShotImage methodsFor:'smalltalk protocol'!
 
@@ -60,7 +77,8 @@
     self allClassesInCategory:aCategory do:[:aClass |
         coll add:aClass
     ].
-    ^ coll!
+    ^ coll
+!
 
 allClassesInCategory:aCategory do:aBlock
     "evaluate the argument, aBlock for all classes in the aCategory;
@@ -74,7 +92,8 @@
                 ]
             ]
         ]
-    ]!
+    ]
+!
 
 at:aKey
     globals isNil ifTrue:[
@@ -87,7 +106,8 @@
     globals isNil ifTrue:[
         self fetchGlobals
     ].
-    ^ globals at:aKey ifAbsent:exceptionValue!
+    ^ globals at:aKey ifAbsent:exceptionValue
+!
 
 keysAndValuesDo:aTwoArgBlock
     globals isNil ifTrue:[