From 18aeed9422df72fcea38949ebc0f15a524c60d6c Mon Sep 17 00:00:00 2001
From: Volker Birk <vb@pep-project.org>
Date: Fri, 22 Feb 2019 10:29:31 +0100
Subject: [PATCH] ...

---
 api/basic_api.yml2 | 14 ++++++++------
 api/pEp.yml2       | 10 ++++++++++
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/api/basic_api.yml2 b/api/basic_api.yml2
index cfd51d71..12d6af20 100644
--- a/api/basic_api.yml2
+++ b/api/basic_api.yml2
@@ -4,21 +4,23 @@
 // this file is under GNU General Public License 3.0
 // see LICENSE.txt
 
-// written by Volker Birk
+// written by Nana Karlstetter and Volker Birk
 
 
-type ISO639_1 extends string size=2 > a-z
+type ISO639_1 is string size=2 > a-z
 
-type hex extends string > a-f0-9
+type hex is string > a-f0-9
 
 type hash doc="32bit Key ID to SHA512 in hex"
-    extends hex min=16, max=128;
+    is hex min=16, max=128;
 
 type hash_list doc="sequence of fingerprints of keys"
-    extends list< hash >;
+    is list< hash >;
 
 type TID doc="UUID version 4 variant 1"
-    extends binary size=16;
+    is binary size=16;
+
+type blob_list is list < blob >;
 
 
 enum comm_type {
diff --git a/api/pEp.yml2 b/api/pEp.yml2
index 6385629b..2db4be31 100644
--- a/api/pEp.yml2
+++ b/api/pEp.yml2
@@ -38,6 +38,16 @@ decl return @type @name (mode=return) alias parm;
 decl throws @except;
 decl caveat(mode=caveat) alias doc;
 
+// base types
+
+// string:  text
+// int:     integer number
+// blob:    Binary Large Object
+
+// collections
+
+// list:    one or more elements, which have a sequence
+// set:     one or more elements, which do not have a sequence
 
 package pEp {
     api transport include ./transport_api.yml2