Use default timestamp as default format

Fixes #8

Author: jecisc

documentation/UserGuide.md

@@ -103,19 +103,23 @@ If you with to know all the loggers of a kind, you can use:
 By default, the preamble of the log will be a timestamp with a human readable format like this: 
 
 ```
-29 November 2018 00:06:30 : Test
+2018-11-29T23:19:55.511775+01:00 : Test
 ```
 
 But this format is configurable. The `timestampFormatBlock:` method can be use with a parameter that is a block taking a stream as parameter and the timestamp (instance of DateAndTime) and use that to write the preamble on the stream.
 
 ```Smalltalk
-TinyLogger default timestampFormatBlock: [ :s :timestamp | s << timestamp asString ]
+TinyLogger default
+		timestampFormatBlock: [ :aStream :timestamp | 
+			timestamp asDate printOn: aStream.
+			aStream << ' '.	"Cannot use #space because of Stdio streams"
+			timestamp asTime print24: true on: aStream ]
 ```
 
 This will produce logs of this format:
 
 ```
-2018-11-29T00:46:37.389775+01:00 : Test
+29 November 2018 00:06:30 : Test
 ```
 
 ## Record with your logger
@@ -133,7 +137,7 @@ To record a single line log you can just use the method `record`:
 This will produce a log like this with the default `timestampFormatBlock`:
 
 ```
-29 November 2018 00:49:20 : This is a string to log
+2018-11-29T23:19:55.511775+01:00 : This is a string to log
 ```
 
 ### Recording the execution of a task
@@ -147,13 +151,13 @@ self execute: [ 1 to: 5 do: [ :value | value asString record ] ] recordedAs: 'Ta
 Will produce a log like this:
 
 ```
-29 November 2018 00:56:20 : 	Begin: Task with only one nesting.
-29 November 2018 00:56:20 : 		1
-29 November 2018 00:56:20 : 		2
-29 November 2018 00:56:20 : 		3
-29 November 2018 00:56:20 : 		4
-29 November 2018 00:56:20 : 		5
-29 November 2018 00:56:20 : 	End: Task with only one nesting.
+2018-11-29T23:21:04.897775+01:00 : 	Begin: Task with only one nesting.
+2018-11-29T23:21:04.900775+01:00 : 		1
+2018-11-29T23:21:04.902775+01:00 : 		2
+2018-11-29T23:21:04.904775+01:00 : 		3
+2018-11-29T23:21:04.906775+01:00 : 		4
+2018-11-29T23:21:04.908775+01:00 : 		5
+2018-11-29T23:21:04.909775+01:00 : 	End: Task with only one nesting.
 ```
 
 It is also possible to nest them like that:
@@ -171,26 +175,26 @@ self execute: [
 It will produce this kind of output:
 
 ```
-29 November 2018 00:57:45 : 	Begin: My first nest
-29 November 2018 00:57:45 : 			Begin: My second nest
-29 November 2018 00:57:45 : 				1
-29 November 2018 00:57:45 : 			End: My second nest
-29 November 2018 00:57:45 : 			Begin: My second nest
-29 November 2018 00:57:45 : 				1
-29 November 2018 00:57:45 : 				2
-29 November 2018 00:57:45 : 			End: My second nest
-29 November 2018 00:57:45 : 			Begin: My second nest
-29 November 2018 00:57:45 : 				1
-29 November 2018 00:57:45 : 				2
-29 November 2018 00:57:45 : 				3
-29 November 2018 00:57:45 : 			End: My second nest
-29 November 2018 00:57:45 : 			Begin: My second nest
-29 November 2018 00:57:45 : 				1
-29 November 2018 00:57:45 : 				2
-29 November 2018 00:57:45 : 				3
-29 November 2018 00:57:45 : 				4
-29 November 2018 00:57:45 : 			End: My second nest
-29 November 2018 00:57:45 : 	End: My first nest
+2018-11-29T23:21:20.147775+01:00 : 	Begin: My first nest
+2018-11-29T23:21:20.151775+01:00 : 			Begin: My second nest
+2018-11-29T23:21:20.153775+01:00 : 				1
+2018-11-29T23:21:20.155775+01:00 : 			End: My second nest
+2018-11-29T23:21:20.157775+01:00 : 			Begin: My second nest
+2018-11-29T23:21:20.158775+01:00 : 				1
+2018-11-29T23:21:20.160775+01:00 : 				2
+2018-11-29T23:21:20.161775+01:00 : 			End: My second nest
+2018-11-29T23:21:20.163775+01:00 : 			Begin: My second nest
+2018-11-29T23:21:20.164775+01:00 : 				1
+2018-11-29T23:21:20.165775+01:00 : 				2
+2018-11-29T23:21:20.167775+01:00 : 				3
+2018-11-29T23:21:20.169775+01:00 : 			End: My second nest
+2018-11-29T23:21:20.171775+01:00 : 			Begin: My second nest
+2018-11-29T23:21:20.172775+01:00 : 				1
+2018-11-29T23:21:20.175775+01:00 : 				2
+2018-11-29T23:21:20.176775+01:00 : 				3
+2018-11-29T23:21:20.177775+01:00 : 				4
+2018-11-29T23:21:20.179775+01:00 : 			End: My second nest
+2018-11-29T23:21:20.180775+01:00 : 	End: My first nest
 ```
 
 ## Use another logger than the global logger

src/TinyLogger/TinyLogger.class.st

@@ -57,7 +57,9 @@ Examples
 	]
 		
 	""Change the default timestamp format""
-	TinyLogger default timestampFormatBlock: [ :stream :timestamp | stream << timestamp asString ].
+	TinyLogger default
+		timestampFormatBlock:
+			[ :aStream :timestamp | timestamp asDate printOn: aStream. aStream << ' '. ""Cannot use #space because of Stdio streams"" timestamp asTime print24: true on: aStream ].
  
 Internal Representation and Key Implementation Points.
 --------------------
@@ -131,10 +133,7 @@ TinyLogger >> decreaseDepthLevel [
 
 { #category : #accessing }
 TinyLogger >> defaultTimestampFormatBlock [
-	^ [ :aStream :timestamp |
-	timestamp asDate printOn: aStream.
-	aStream << ' '.	"Cannot use #space because Stdio streams does not implements it."
-	timestamp asTime print24: true on: aStream ]
+	^ [ :aStream :timestamp | aStream << timestamp asString ]
 ]
 
 { #category : #accessing }