From e4302783f3426c75662bda63bdbb56dfa088603f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Kurzyd=C5=82owski?= <michalk@mimuw.edu.pl>
Date: Fri, 12 Jul 2024 11:09:53 +0200
Subject: [PATCH] Disallow special ISO639-2 code usage #177

---
 endpoints/get-response.xsd | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/endpoints/get-response.xsd b/endpoints/get-response.xsd
index 83c8aaf..915c7d4 100644
--- a/endpoints/get-response.xsd
+++ b/endpoints/get-response.xsd
@@ -450,6 +450,10 @@
                         <xs:documentation>
                             The code of the language which the student (or staff member) is recommended to be
                             familiar with.
+
+                            Note: EWP is following BCP 47 (https://www.rfc-editor.org/rfc/bcp/bcp47.txt)
+                            for specifying languages but disallows the use of special codes mentioned in
+                            chapter 4.1. Choice of Language Tag, guideline 5 of this document.
                         </xs:documentation>
                     </xs:annotation>
                 </xs:element>