1 files changed, 89 insertions, 0 deletions
diff --git a/doc/manual/docbook-refentry-to-manpage-preprocessing.xsl b/doc/manual/docbook-refentry-to-manpage-preprocessing.xsl
new file mode 100644
index 00000000..8ac32459
--- /dev/null
+++ b/doc/manual/docbook-refentry-to-manpage-preprocessing.xsl
@@ -0,0 +1,89 @@
+<?xml version="1.0"?>
+<!--
+    docbook-refentry-to-manpage-preprocessing.xsl:
+        XSLT stylesheet preprocessing remarks elements before
+        turning a refentry (manpage) into a unix manual page and
+        VBoxManage built-in help.
+-->
+<!--
+    Copyright (C) 2006-2022 Oracle and/or its affiliates.
+
+    This file is part of VirtualBox base platform packages, as
+    available from https://www.virtualbox.org.
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation, in version 3 of the
+    License.
+
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, see <https://www.gnu.org/licenses>.
+
+    SPDX-License-Identifier: GPL-3.0-only
+-->
+
+<xsl:stylesheet
+  version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:str="http://xsltsl.org/string"
+  >
+
+  <xsl:output method="xml" version="1.0" encoding="utf-8" indent="no"/>
+
+  <!--
+    The default action is to copy everything.
+    -->
+  <xsl:template match="node()|@*">
+    <xsl:copy>
+      <xsl:apply-templates select="node()|@*"/>
+    </xsl:copy>
+  </xsl:template>
+
+  <!--
+    Execute synopsis copy remark (avoids duplication for complicated xml).
+    We strip the attributes off it.
+    -->
+  <xsl:template match="remark[@role = 'help-copy-synopsis']">
+    <xsl:choose>
+      <xsl:when test="parent::refsect2"/>
+      <xsl:otherwise>
+        <xsl:message terminate="yes">Misplaced remark/@role=help-copy-synopsis element.
+Only supported on: refsect2</xsl:message>
+      </xsl:otherwise>
+    </xsl:choose>
+    <xsl:variable name="sSrcId">
+      <xsl:choose>
+        <xsl:when test="@condition"><xsl:value-of select="concat('synopsis-', @condition)"/></xsl:when>
+        <xsl:otherwise><xsl:value-of select="concat('synopsis-', ../@id)"/></xsl:otherwise>
+      </xsl:choose>
+    </xsl:variable>
+    <xsl:variable name="CmdSynopsis" select="/refentry/refsynopsisdiv/cmdsynopsis[@id = $sSrcId]"/>
+    <xsl:if test="not($CmdSynopsis)">
+      <xsl:message terminate="yes">Could not find any cmdsynopsis with id=<xsl:value-of select="$sSrcId"/> in refsynopsisdiv.</xsl:message>
+    </xsl:if>
+
+    <xsl:element name="cmdsynopsis">
+      <xsl:apply-templates select="$CmdSynopsis/node()"/>
+    </xsl:element>
+
+  </xsl:template>
+
+  <!--
+    Remove bits only intended for the manual.
+    -->
+  <xsl:template match="remark[@role='help-manual']"/>
+
+  <!--
+   Remove remarks without a role.
+   These are used for leaving questions and such while working with the documentation team.
+  -->
+  <xsl:template match="remark[not(@role)]"/>
+
+
+</xsl:stylesheet>
+