--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ztfy/utils/size.py	Thu Oct 25 11:38:54 2012 +0200
@@ -0,0 +1,45 @@
+### -*- coding: utf-8 -*- ####################################################
+##############################################################################
+#
+# Copyright (c) 2012 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+
+
+# import standard packages
+
+# import Zope3 interfaces
+
+# import local interfaces
+
+# import Zope3 packages
+from zope.i18n import translate
+
+# import local packages
+from ztfy.utils.request import queryRequest
+
+from ztfy.utils import _
+
+
+def getHumanSize(value, request=None):
+    """Convert given bytes value in human readable format"""
+    if request is None:
+        request = queryRequest()
+    if value < 1024:
+        return translate(_("%d bytes"), context=request) % value
+    value = value / 1024.0
+    if value < 1024:
+        return translate(_("%.1f Kb"), context=request) % value
+    value = value / 1024.0
+    if value < 1024:
+        return translate(_("%.2f Mb"), context=request) % value
+    value = value / 1024.0
+    return translate(_("%.3f Gb"), context=request) % value