From 461af8b9ed05cae188b24db71949a9e7758693e7 Mon Sep 17 00:00:00 2001
From: David King <amigadave@amigadave.com>
Date: Thu, 27 Jan 2022 15:33:17 +0000
Subject: [PATCH 1/2] Use DocBook URL for tutorial DTD

---
 doc/tutorial2/libxslt_pipes.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/tutorial2/libxslt_pipes.xml b/doc/tutorial2/libxslt_pipes.xml
index 9a672a9b..2aaac95f 100644
--- a/doc/tutorial2/libxslt_pipes.xml
+++ b/doc/tutorial2/libxslt_pipes.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="iso-8859-2"?>
-<!DOCTYPE article 
-SYSTEM "file:///usr/share/docbook/docbook-xml-4.3/docbookx.dtd">
+<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
 
 <article id="libxslt">
 <articleinfo>
-- 
2.34.1


From 634065b39285841eef7dab5bfb2a8ac71b0a5d05 Mon Sep 17 00:00:00 2001
From: David King <amigadave@amigadave.com>
Date: Fri, 28 Jan 2022 09:35:03 +0000
Subject: [PATCH 2/2] Fix validity of tutorial XML

Move the title element before articleinfo.

https://tdg.docbook.org/tdg/4.5/article.html
---
 doc/tutorial2/libxslt_pipes.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/tutorial2/libxslt_pipes.xml b/doc/tutorial2/libxslt_pipes.xml
index 2aaac95f..f6fa0d64 100644
--- a/doc/tutorial2/libxslt_pipes.xml
+++ b/doc/tutorial2/libxslt_pipes.xml
@@ -3,6 +3,8 @@
                "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
 
 <article id="libxslt">
+<title>libxslt: An Extended Tutorial</title>
+
 <articleinfo>
   <author><firstname>Panos</firstname><surname>Louridas</surname></author>
   <copyright>
@@ -34,8 +36,6 @@
   </legalnotice>
 </articleinfo>
 
-<title>libxslt: An Extended Tutorial</title>
-
 <sect1><title>Introduction</title>
 
 <para>The Extensible Stylesheet Language Transformations (XSLT)
-- 
2.34.1