From a8741718ebcd8113d41eee7f0f8fbb5d6b469617 Mon Sep 17 00:00:00 2001
From: lucidiot <lucidiot@brainshit.fr>
Date: Wed, 22 Nov 2023 23:33:33 +0100
Subject: [PATCH] Add RSS1 Syndication module XML schema

---
 xsd/syndication.xsd | 71 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 xsd/syndication.xsd

diff --git a/xsd/syndication.xsd b/xsd/syndication.xsd
new file mode 100644
index 0000000..483e008
--- /dev/null
+++ b/xsd/syndication.xsd
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+RDF Site Summary 1.0 Syndication Module 1.4.1 XML schema
+Copyright (c) 2023 ~lucidiot
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+-->
+<xs:schema
+  targetNamespace="http://purl.org/rss/1.0/modules/syndication/"
+  elementFormDefault="qualified"
+  attributeFormDefault="unqualified"
+  version="1.4.1" 
+  xmlns="http://purl.org/rss/1.0/modules/syndication/"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+>
+  <xs:annotation>
+    <xs:documentation>RDF Site Summary 1.0 Syndication Module 1.4.1 XML schema</xs:documentation>
+    <xs:documentation>
+      <![CDATA[Derived from the specification at <https://web.resource.org/rss/1.0/modules/syndication/>]]>
+    </xs:documentation>
+  </xs:annotation>
+
+  <xs:simpleType name="UpdatePeriod">
+    <xs:annotation>
+      <xs:documentation>Period over which the channel format is updated.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="hourly" />
+      <xs:enumeration value="daily" />
+      <xs:enumeration value="weekly" />
+      <xs:enumeration value="monthly" />
+      <xs:enumeration value="yearly" />
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="updatePeriod" type="UpdatePeriod" default="daily" />
+
+  <xs:element name="updateFrequency" type="xs:positiveInteger" default="1">
+    <xs:annotation>
+      <xs:documentation>Frequency of updates in relation to the update period.</xs:documentation>
+      <xs:documentation>A positive integer indicates how many times in that period the channel is updated.</xs:documentation>
+      <xs:documentation>For example, an updatePeriod of daily, and an updateFrequency of 2 indicates the channel format is updated twice daily.</xs:documentation>
+    </xs:annotation>
+  </xs:element>
+
+  <xs:simpleType name="W3CDateTimeMinutes">
+    <xs:annotation>
+      <xs:documentation>A date and time that follows the W3C note on Date and Time formats, and has a precision in minutes.</xs:documentation>
+      <xs:documentation><![CDATA[See <https://www.w3.org/TR/NOTE-datetime>]]></xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\d\d\d\d-(0\d|1[0-2])-([0-2]\d|3[01])T([01]\d|2[0-3]):[0-5]\d(Z|[+-]([01]\d|2[0-3]):[0-5]\d)" />
+    </xs:restriction>
+  </xs:simpleType>
+  
+  <xs:element name="updateBase" type="W3CDateTimeMinutes">
+    <xs:annotation>
+      <xs:documentation>Base date to be used in concert with updatePeriod and updateFrequency to calculate the publishing schedule.</xs:documentation>
+    </xs:annotation>
+  </xs:element>
+</xs:schema>