Fix XML namespace declarations

petere · petere · commit 6538be9e1e41 · 2022-02-15T11:13:49.000+01:00
The XSL stylesheets used a mix of incorrect or outdated namespace declarations for XHTML, probably based on ancient advice and examples. Clean all this up. Besides improving correctness (although probably no impact in practice, other than possible validation failures), this removes a bunch of useless namespace declarations in the HTML output. Reported-by: Andres Freund <andres@anarazel.de> Discussion: https://www.postgresql.org/message-id/flat/20220213201618.qz6p6noon3wagr3f%40alap3.anarazel.de
diff --git a/doc/src/sgml/stylesheet-hh.xsl b/doc/src/sgml/stylesheet-hh.xsl
@@ -1,8 +1,6 @@
 <?xml version='1.0'?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
+                version='1.0'>
 
 <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/htmlhelp/htmlhelp.xsl"/>
 <xsl:include href="stylesheet-common.xsl" />
diff --git a/doc/src/sgml/stylesheet-html-common.xsl b/doc/src/sgml/stylesheet-html-common.xsl
@@ -4,7 +4,8 @@
 %common.entities;
 ]>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version="1.0">
+                version="1.0"
+                xmlns="http://www.w3.org/1999/xhtml">
 
 <!--
   This file contains XSLT stylesheet customizations that are common to
diff --git a/doc/src/sgml/stylesheet-html-nochunk.xsl b/doc/src/sgml/stylesheet-html-nochunk.xsl
@@ -1,8 +1,6 @@
 <?xml version='1.0'?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
+                version='1.0'>
 
 <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"/>
 <xsl:include href="stylesheet-common.xsl" />
diff --git a/doc/src/sgml/stylesheet-text.xsl b/doc/src/sgml/stylesheet-text.xsl
@@ -1,8 +1,7 @@
 <?xml version='1.0'?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                 version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
+                xmlns="http://www.w3.org/1999/xhtml">
 
 <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"/>
 <xsl:import href="stylesheet-common.xsl" />
diff --git a/doc/src/sgml/stylesheet.xsl b/doc/src/sgml/stylesheet.xsl
@@ -1,8 +1,7 @@
 <?xml version='1.0'?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                 version='1.0'
-                xmlns="http://www.w3.org/TR/xhtml1/transitional"
-                exclude-result-prefixes="#default">
+                xmlns="http://www.w3.org/1999/xhtml">
 
 <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/xhtml/chunk.xsl"/>
 <xsl:include href="stylesheet-common.xsl" />
