--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tango/tango/util/log/DateLayout.d	Fri Jan 11 17:57:40 2008 +0100
@@ -0,0 +1,90 @@
+/*******************************************************************************
+
+        copyright:      Copyright (c) 2004 Kris Bell. All rights reserved
+
+        license:        BSD style: $(LICENSE)
+      
+        version:        Initial release: May 2004
+        
+        author:         Kris
+
+*******************************************************************************/
+
+module tango.util.log.DateLayout;
+
+private import  tango.text.Util;
+
+private import  tango.time.Clock,
+                tango.time.WallClock;
+
+private import  tango.text.convert.Integer;
+
+private import  tango.util.log.Event,
+                tango.util.log.EventLayout;
+
+/*******************************************************************************
+
+        A layout with ISO-8601 date information prefixed to each message
+       
+*******************************************************************************/
+
+public class DateLayout : EventLayout
+{
+        private bool localTime;
+
+        private static char[6] spaces = ' ';
+
+        /***********************************************************************
+        
+                Ctor with indicator for local vs UTC time. Default is 
+                local time.
+                        
+        ***********************************************************************/
+
+        this (bool localTime = true)
+        {
+                this.localTime = localTime;
+        }
+
+        /***********************************************************************
+                
+                Format message attributes into an output buffer and return
+                the populated portion.
+
+        ***********************************************************************/
+
+        char[] header (Event event)
+        {
+                char[] level = event.getLevelName;
+                
+                // convert time to field values
+                auto tm = event.getTime;
+                auto dt = (localTime) ? WallClock.toDate(tm) : Clock.toDate(tm);
+                                
+                // format date according to ISO-8601 (lightweight formatter)
+                char[20] tmp = void;
+                return layout (event.scratch.content, "%0-%1-%2 %3:%4:%5,%6 %7%8 %9 - ", 
+                               convert (tmp[0..4],   dt.date.year),
+                               convert (tmp[4..6],   dt.date.month),
+                               convert (tmp[6..8],   dt.date.day),
+                               convert (tmp[8..10],  dt.time.hours),
+                               convert (tmp[10..12], dt.time.minutes),
+                               convert (tmp[12..14], dt.time.seconds),
+                               convert (tmp[14..17], dt.time.millis),
+                               spaces [0 .. $-level.length],
+                               level,
+                               event.getName
+                              );
+        }
+        
+        /**********************************************************************
+
+                Convert an integer to a zero prefixed text representation
+
+        **********************************************************************/
+
+        private char[] convert (char[] tmp, int i)
+        {
+                return format (tmp, cast(long) i, Style.Unsigned, Flags.Zero);
+        }
+}