From 2697f104f34682fe84bf90d1a3154d17c631ab5d Mon Sep 17 00:00:00 2001
From: Bob Stayton <bobs@sagehill.net>
Date: Wed, 29 Jan 2014 04:09:09 +0000
Subject: [PATCH] Streamline handling of namespace fixup in preparation for
 making the namespaced version the source base.

---
 xsl/fo/docbook.xsl | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

diff --git a/xsl/fo/docbook.xsl b/xsl/fo/docbook.xsl
index 980378639..2f598c940 100644
--- a/xsl/fo/docbook.xsl
+++ b/xsl/fo/docbook.xsl
@@ -128,11 +128,13 @@
     <xsl:call-template name="get.doc.title"/>
   </xsl:variable>
   <xsl:choose>
-    <!-- Hack! If someone hands us a DocBook V5.x or DocBook NG document,
-         toss the namespace and continue.  Use the docbook5 namespaced
-         stylesheets for DocBook5 if you don't want to use this feature.-->
-    <xsl:when test="$exsl.node.set.available != 0
-                    and (*/self::ng:* or */self::db:*)">
+    <!-- fix namespace if necessary -->
+    <xsl:when test="$exsl.node.set.available != 0 and 
+                  namespace-uri(/*) = 'http://docbook.org/ns/docbook'">
+      <xsl:variable name="no.namespace">
+        <xsl:apply-templates select="/*" mode="stripNS"/>
+      </xsl:variable>
+
       <xsl:call-template name="log.message">
         <xsl:with-param name="level">Note</xsl:with-param>
         <xsl:with-param name="source" select="$doc.title"/>
@@ -143,23 +145,20 @@
           <xsl:text>stripped namespace before processing</xsl:text>
         </xsl:with-param>
       </xsl:call-template>
-      <xsl:variable name="nons">
-        <xsl:apply-templates mode="stripNS"/>
-      </xsl:variable>
-      <xsl:call-template name="log.message">
-        <xsl:with-param name="level">Note</xsl:with-param>
-        <xsl:with-param name="source" select="$doc.title"/>
-        <xsl:with-param name="context-desc">
-          <xsl:text>namesp. cut</xsl:text>
-        </xsl:with-param>
-        <xsl:with-param name="message">
-          <xsl:text>processing stripped document</xsl:text>
+      <!-- DEBUG: uncomment to save namespace-fixed document.
+      <xsl:message>Saving namespace-fixed document.</xsl:message>
+      <xsl:call-template name="write.chunk">
+        <xsl:with-param name="filename" select="'namespace-fixed.debug.xml'"/>
+        <xsl:with-param name="method" select="'xml'"/>
+        <xsl:with-param name="content">
+          <xsl:copy-of select="exsl:node-set($no.namespace)"/>
         </xsl:with-param>
       </xsl:call-template>
-      <xsl:apply-templates select="exsl:node-set($nons)"/>
+      -->
+      <xsl:apply-templates select="exsl:node-set($no.namespace)"/>
     </xsl:when>
-    <!-- Can't process unless namespace removed -->
-    <xsl:when test="*/self::ng:* or */self::db:*">
+    <!-- Can't process unless namespace fixed with exsl node-set()-->
+    <xsl:when test="namespace-uri(/*) = 'http://docbook.org/ns/docbook'">
       <xsl:message terminate="yes">
         <xsl:text>Unable to strip the namespace from DB5 document,</xsl:text>
         <xsl:text> cannot proceed.</xsl:text>
-- 
2.50.1