Index: applications/editors/josm/plugins/seachart/src/s57/S57att.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57att.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57att.java	(revision 31660)
@@ -14,5 +14,5 @@
 import s57.S57obj.*;
 
-public class S57att {
+public class S57att { // S57 Attribute lookup tables & methods
 	
 	public enum Att {
Index: applications/editors/josm/plugins/seachart/src/s57/S57dat.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57dat.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57dat.java	(revision 31660)
@@ -13,5 +13,5 @@
 import java.util.*;
 
-public class S57dat {
+public class S57dat { // S57 ENC file fields lookup tables & methods
 	
 	public enum Dom { BT, GT, DG, DATE, INT, REAL, AN, HEX, CL }
Index: applications/editors/josm/plugins/seachart/src/s57/S57dec.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57dec.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57dec.java	(revision 31660)
@@ -16,5 +16,5 @@
 import s57.S57map.*;
 
-public class S57dec {
+public class S57dec { // S57 ENC file input & map conversion
 
 	public static MapBounds decodeFile(FileInputStream in, S57map map) throws IOException {
Index: applications/editors/josm/plugins/seachart/src/s57/S57enc.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57enc.java	(revision 31660)
+++ applications/editors/josm/plugins/seachart/src/s57/S57enc.java	(revision 31660)
@@ -0,0 +1,14 @@
+/* Copyright 2015 Malcolm Herring
+ *
+ * This is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * For a copy of the GNU General Public License, see <http://www.gnu.org/licenses/>.
+ */
+
+package s57;
+
+public class S57enc { // S57 ENC file generation
+
+}
Index: applications/editors/josm/plugins/seachart/src/s57/S57map.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57map.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57map.java	(revision 31660)
@@ -21,5 +21,5 @@
 import s57.S57osm.*;
 
-public class S57map {
+public class S57map { // S57/OSM map generation methods
 	
 	public class MapBounds {
Index: applications/editors/josm/plugins/seachart/src/s57/S57obj.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57obj.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57obj.java	(revision 31660)
@@ -12,5 +12,5 @@
 import java.util.*;
 
-public class S57obj {
+public class S57obj { // S57 Object lookup tables & methods
 	
 	public enum Obj {
Index: applications/editors/josm/plugins/seachart/src/s57/S57osm.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57osm.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57osm.java	(revision 31660)
@@ -17,5 +17,5 @@
 import s57.S57val.*;
 
-public class S57osm {
+public class S57osm { // OSM to S57 Object/Attribute conversions
 
 	static class KeyVal<V> {
Index: applications/editors/josm/plugins/seachart/src/s57/S57val.java
===================================================================
--- applications/editors/josm/plugins/seachart/src/s57/S57val.java	(revision 31659)
+++ applications/editors/josm/plugins/seachart/src/s57/S57val.java	(revision 31660)
@@ -14,5 +14,5 @@
 import s57.S57att.*;
 
-public class S57val {
+public class S57val { // S57 Attribute values lookup tables & methods
 
 	static class S57enum {