From fd5113fe1053a17105651eebd41e62b8e5e173be Mon Sep 17 00:00:00 2001
From: Gerrit Imsieke <gerrit.imsieke@le-tex.de>
Date: Sun, 13 Jun 2021 11:18:46 +0200
Subject: [PATCH] introduce -e for evolve-hub customization,
 https://github.com/transpect/docx2hub/issues/25

---
 d2t                                      | 15 +++++++++++++--
 xmlcatalog/catalog.xml                   |  2 +-
 xpl/docx2tex.xpl                         |  9 +++++++--
 xsl/custom-evolve-hub-driver-example.xsl | 20 ++++++++++++++++++++
 4 files changed, 41 insertions(+), 5 deletions(-)
 create mode 100755 xsl/custom-evolve-hub-driver-example.xsl

diff --git a/d2t b/d2t
index c68eb34..0d61332 100755
--- a/d2t
+++ b/d2t
@@ -14,7 +14,8 @@ usage() {
     echo "   -r    omit page and cross-references and labels"
     echo "   -t    choose table model (tabularx|tabular|htmltabs)"
     echo "   -l    suppress table grid lines"
-    echo "   -x    custom XSLT stylesheet for Hub processing"
+    echo "   -x    custom XSLT stylesheet for Hub processing (after evolve-hub)"
+    echo "   -e    custom XSLT stylesheet for evolve-hub (should import xsl/evolve-hub-driver.xsl)"
     echo "   -d    debug mode"
     echo "   -h    heap (main memory) that Java is allowed to use (for ex., 4096m)"
     1>&2; exit 1;
@@ -56,7 +57,7 @@ REFS=yes
 DEBUG=no
 
 # specify options
-while getopts ":o:c:m:t:x:plrdh:" opt; do
+while getopts ":o:c:m:t:x:e:plrdh:" opt; do
     case "${opt}" in
 	o)
 	    OUT_DIR=${OPTARG}
@@ -70,6 +71,9 @@ while getopts ":o:c:m:t:x:plrdh:" opt; do
 	x)
 	    CUSTOMXSL=${OPTARG}
 	    ;;
+	e)
+	    CUSTOMDRIVER=${OPTARG}
+	    ;;
 	t)
 	    TABLEMODEL=${OPTARG}
 	    ;;
@@ -104,6 +108,11 @@ if [ -z "$1" ]; then
     usage
 fi
 
+# custom evolve-hub driver given (as URI, may also be relative to this directory)
+if ! [ -z "$CUSTOMDRIVER" ]; then
+    INPUTCUSTOMDRIVER="-i custom-evolve-hub-driver=$CUSTOMDRIVER"
+fi
+
 # file as 1st argument
 FILE="$1"
 if ! [[ $FILE =~ \.docx$ ]]; then
@@ -193,6 +202,7 @@ if [ "$DEBUG" = "yes" ]; then
     echo "  refs and labels: $REFS"
     echo "  table model: $TABLEMODEL"
     echo "  draw table grid lines: $TABLEGRID"
+    echo "  custom evolve-hub: $INPUTCUSTOMDRIVER"
     echo "  custom xslt: $CUSTOMXSL"
     echo "  Java heap: $HEAP"
     echo ""
@@ -200,6 +210,7 @@ fi
 
 # docx2tex xproc pipeline
 HEAP=$HEAP $CALABASH \
+    $INPUTCUSTOMDRIVER \
     -o result="$OUT_DIR_PSEUDOURI/$BASENAME.tex" \
     -o hub="$OUT_DIR_PSEUDOURI/$BASENAME.xml" \
     "$DIR/xpl/docx2tex.xpl" \
diff --git a/xmlcatalog/catalog.xml b/xmlcatalog/catalog.xml
index 3d9f930..082e493 100755
--- a/xmlcatalog/catalog.xml
+++ b/xmlcatalog/catalog.xml
@@ -4,7 +4,7 @@
   <nextCatalog catalog="../schema/hub/xmlcatalog/catalog.xml"/>
 
   <rewriteURI uriStartString="http://transpect.io/docx2tex/" rewritePrefix="../"/>
-  <rewriteURI uriStartString="http://customers.le-tex.de/generic/book-conversion/" rewritePrefix="../"/>
+  <rewriteURI uriStartString="http://this.transpect.io/" rewritePrefix="../"/>
 
   <nextCatalog catalog="../cascade/xmlcatalog/catalog.xml"/>
   
diff --git a/xpl/docx2tex.xpl b/xpl/docx2tex.xpl
index 3d38016..edd513b 100755
--- a/xpl/docx2tex.xpl
+++ b/xpl/docx2tex.xpl
@@ -21,6 +21,8 @@
       Provide a custom evolve-hub driver stylesheet if you like. I would strongly advise to 
       import the standard evolve-hub-driver in ../xsl/evolve-hub-driver.xsl as it brings many 
       improvements for the subsequent processing.
+      There is a sample customization, xsl/custom-evolve-hub-driver-example.xsl, that treats
+      every empty paragraph as a Heading1, that is, a \chapter{} in the generated LaTeX file.
     </p:documentation>
   </p:input>
 
@@ -296,10 +298,13 @@
         * -->
   <p:choose name="custom-xsl">
     <p:when test="$custom-xsl ne ''">
+      <tr:file-uri name="custom-xsl-uri">
+        <p:with-option name="filename" select="$custom-xsl"/>
+      </tr:file-uri>
       <p:load name="load-custom-xsl">
-        <p:with-option name="href" select="$custom-xsl"/>
+        <p:with-option name="href" select="/*/@local-href"/>
       </p:load>
-      <p:xslt>
+      <p:xslt name="apply-custom-xsl">
         <p:input port="parameters">
           <p:empty/>
         </p:input>
diff --git a/xsl/custom-evolve-hub-driver-example.xsl b/xsl/custom-evolve-hub-driver-example.xsl
new file mode 100755
index 0000000..ea744d5
--- /dev/null
+++ b/xsl/custom-evolve-hub-driver-example.xsl
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
+  xmlns:css="http://www.w3.org/1996/css" 
+  xmlns:docx2tex="http://transpect.io/docx2tex"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema" 
+  xmlns="http://docbook.org/ns/docbook"
+  version="3.0" 
+  exclude-result-prefixes="#all"
+  xpath-default-namespace="http://docbook.org/ns/docbook">
+
+  <xsl:import href="http://transpect.io/docx2tex/xsl/evolve-hub-driver.xsl"/>
+
+  <xsl:template match="para[empty(node())]" mode="docx2tex-preprocess">
+    <xsl:copy>
+      <xsl:apply-templates select="@*"/>
+      <xsl:attribute name="role" select="'Heading1'"/>
+    </xsl:copy>
+  </xsl:template>
+
+</xsl:stylesheet>
\ No newline at end of file