lib/stream: BufferedReader return the buffer if less than asked to read

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/lib/standard/stream.nit b/lib/standard/stream.nit
index 476c684..6079d95 100644 (file)
--- a/lib/standard/stream.nit
+++ b/lib/standard/stream.nit
@@ -344,6 +344,7 @@ abstract class BufferedReader
                if _buffer_pos + i >= _buffer.length then
                        var from = _buffer_pos
                        _buffer_pos = _buffer.length
+                       if from == 0 then return _buffer.to_s
                        return _buffer.substring_from(from).to_s
                end
                _buffer_pos += i