lib/core: Added packing methods to `Text`

[nit.git] / lib / core / stream.nit

diff --git a/lib/core/stream.nit b/lib/core/stream.nit
index b4a0e2b..19ed842 100644 (file)
--- 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
@@ -187,12 +207,12 @@ abstract class Reader
                        # if this is the best size or not
                        var chunksz = 129
                        if chunksz > remsp then
-                               rets += new FlatString.with_infos(sits, remsp, pos, pos + remsp - 1)
+                               rets += new FlatString.with_infos(sits, remsp, pos)
                                break
                        end
                        var st = sits.find_beginning_of_char_at(pos + chunksz - 1)
                        var bytelen = st - pos
-                       rets += new FlatString.with_infos(sits, bytelen, pos, st - 1)
+                       rets += new FlatString.with_infos(sits, bytelen, pos)
                        pos = st
                        remsp -= bytelen
                end
@@ -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)