X-Git-Url: http://nitlanguage.org

diff --git a/lib/core/stream.nit b/lib/core/stream.nit
index 4b1e826..e8cb232 100644
--- a/lib/core/stream.nit
+++ b/lib/core/stream.nit
@@ -39,6 +39,26 @@ abstract class Stream
 
 	# close the stream
 	fun close is abstract
+
+	# Pre-work hook.
+	#
+	# Used to inform `self` that operations will start.
+	# Specific streams can use this to prepare some resources.
+	#
+	# Is automatically invoked at the beginning of `with` structures.
+	#
+	# Do nothing by default.
+	fun start do end
+
+	# Post-work hook.
+	#
+	# Used to inform `self` that the operations are over.
+	# Specific streams can use this to free some resources.
+	#
+	# Is automatically invoked at the end of `woth` structures.
+	#
+	# call `close` by default.
+	fun finish do close
 end
 
 # A `Stream` that can be read from
@@ -275,7 +295,7 @@ abstract class Reader
 	# ~~~
 	# var w = new StringReader(" Hello, \n\t World!")
 	# assert w.read_word == "Hello,"
-	# assert w.read_char == '\n'.ascii
+	# assert w.read_char == '\n'
 	# assert w.read_word == "World!"
 	# assert w.read_word == ""
 	# ~~~
@@ -425,6 +445,13 @@ interface Writable
 	end
 end
 
+redef class Bytes
+	super Writable
+	redef fun write_to(s) do s.write_bytes(self)
+
+	redef fun write_to_string do return to_s
+end
+
 redef class Text
 	super Writable
 	redef fun write_to(stream) do stream.write(self)
@@ -441,7 +468,7 @@ abstract class BufferedReader
 			return null
 		end
 		# TODO: Fix when supporting UTF-8
-		var c = _buffer[_buffer_pos].to_i.ascii
+		var c = _buffer[_buffer_pos].to_i.code_point
 		_buffer_pos += 1
 		return c
 	end