Fix generator metadata

Formerly, existing generator metadata was preserved and also duplicated
in the tag added by ⛩📰 书社. It only makes sense to do one or the
other.

diff --git a/lib/catalog2transform.xslt b/lib/catalog2transform.xslt
index 7e503bef19eab0ea422ba436f61e769fb7e020db..be604968c87c68e8dfa56bd4967a81a50deede3c 100644 (file)
--- a/lib/catalog2transform.xslt
+++ b/lib/catalog2transform.xslt
@@ -191,14 +191,16 @@ If a copy of the M·P·L was not distributed with this file, You can obtain one
                        </xslt:template>
                        <xslt:template name="书社:wrap">
                                <xslt:param name="nodes" select="/.."/>
-                               <xslt:variable name="modalinput">
+                               <xslt:variable name="modalinput-fragment">
                                        <xslt:copy-of select="$nodes"/>
                                        <apply-templates select="exsl:node-set($unique-ids)" mode="书社:literally"/>
                                </xslt:variable>
-                               <xslt:variable name="metadata">
+                               <xslt:variable name="modalinput" select="exsl:node-set($modalinput-fragment)"/>
+                               <xslt:variable name="metadata-fragment">
                                        <xslt:copy-of select="$nodes[self::html:html]/html:head/node()|$nodes[self::html:head]/node()"/>
-                                       <xslt:apply-templates select="exsl:node-set($modalinput)/node()" mode="书社:metadata"/>
+                                       <xslt:apply-templates select="$modalinput/node()" mode="书社:metadata"/>
                                </xslt:variable>
+                               <xslt:variable name="metadata" select="exsl:node-set($metadata-fragment)"/>
                                <html:html>
                                        <xslt:copy-of select="$nodes[self::html:html]/@*"/>
                                        <xslt:if test="not($nodes[self::html:html]/@书社:archived-as) and $nodes/@书社:archived-as">
@@ -219,7 +221,7 @@ If a copy of the M·P·L was not distributed with this file, You can obtain one
                                        <html:head>
                                                <xslt:copy-of select="$nodes[self::html:html]/html:head/@*|$nodes[self::html:head]/@*"/>
                                                <html:title>
-                                                       <xslt:for-each select="exsl:node-set($metadata)/html:title">
+                                                       <xslt:for-each select="$metadata/html:title">
                                                                <xslt:value-of select="."/>
                                                                <xslt:if test="position()!=last()">
                                                                        <xslt:text>
@@ -228,10 +230,10 @@ If a copy of the M·P·L was not distributed with this file, You can obtain one
                                                                </xslt:if>
                                                        </xslt:for-each>
                                                </html:title>
-                                               <xslt:copy-of select="exsl:node-set($metadata)/node()[not(self::html:title)]"/>
+                                               <xslt:copy-of select="$metadata/node()[not(self::html:title or self::html:meta and @name='generator')]"/>
                                                <html:meta name="generator">
                                                        <xslt:attribute name="content">
-                                                               <xslt:for-each select="exsl:node-set($metadata)/html:meta[@name='generator']">
+                                                               <xslt:for-each select="$metadata/html:meta[@name='generator']">
                                                                        <xslt:value-of select="@content"/>
                                                                        <xslt:text>
                                                                                <text>, </text>
@@ -254,9 +256,9 @@ If a copy of the M·P·L was not distributed with this file, You can obtain one
                                        </html:head>
                                        <html:body>
                                                <xslt:copy-of select="$nodes[self::html:html]/html:body/@*|$nodes[self::html:body]/@*"/>
-                                               <xslt:apply-templates select="exsl:node-set($modalinput)/node()" mode="书社:header"/>
+                                               <xslt:apply-templates select="$modalinput/node()" mode="书社:header"/>
                                                <xslt:copy-of select="$nodes[not(self::html:html or self::html:head or self::html:body)]|$nodes[self::html:html]/node()[not(self::html:head or self::html:body)]|$nodes[self::html:html]/html:body/node()|$nodes[self::html:body]/node()"/>
-                                               <xslt:apply-templates select="exsl:node-set($modalinput)/node()" mode="书社:footer"/>
+                                               <xslt:apply-templates select="$modalinput/node()" mode="书社:footer"/>
                                        </html:body>
                                </html:html>
                        </xslt:template>