From 37700c0586206cb9a8db09a87aee2cb4fe4b0701 Mon Sep 17 00:00:00 2001
From: Bob Stayton <bobs@sagehill.net>
Date: Tue, 23 Oct 2001 07:40:45 +0000
Subject: [PATCH] New olink toolkit in sufficient shape for others to try it.

---
 .../xsl-custom/newolink/tools/chunkcustom.xsl |  23 +++
 .../newolink/tools/chunktargets.xsl           |  48 +++++
 contrib/xsl-custom/newolink/tools/custom.xsl  |  20 ++
 .../xsl-custom/newolink/tools/newolink.xsl    | 132 +++++++++++++
 .../newolink/tools/olink-common.xsl           | 174 ++++++++++++++++++
 .../newolink/tools/targetdatabase.dtd         |  40 ++++
 contrib/xsl-custom/newolink/tools/targets.xsl |  42 +++++
 7 files changed, 479 insertions(+)
 create mode 100644 contrib/xsl-custom/newolink/tools/chunkcustom.xsl
 create mode 100644 contrib/xsl-custom/newolink/tools/chunktargets.xsl
 create mode 100644 contrib/xsl-custom/newolink/tools/custom.xsl
 create mode 100644 contrib/xsl-custom/newolink/tools/newolink.xsl
 create mode 100644 contrib/xsl-custom/newolink/tools/olink-common.xsl
 create mode 100644 contrib/xsl-custom/newolink/tools/targetdatabase.dtd
 create mode 100644 contrib/xsl-custom/newolink/tools/targets.xsl

diff --git a/contrib/xsl-custom/newolink/tools/chunkcustom.xsl b/contrib/xsl-custom/newolink/tools/chunkcustom.xsl
new file mode 100644
index 000000000..79e8baa23
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/chunkcustom.xsl
@@ -0,0 +1,23 @@
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                version="1.0">
+
+<!-- DocBook stylesheet driver file for processing DocBook
+     documents for chunked HTML output using a target database
+     for resolving olinks.
+
+     Adjust this relative reference for importing the
+     standard chunk.xsl file.
+ -->
+
+
+<xsl:import href="../../docbook-xsl-1.45/html/chunk.xsl"/>
+<xsl:output method="html" indent="yes" encoding="UTF-8"/>
+
+<xsl:param name="target.database.document" select="''"/>
+<xsl:param name="use.id.as.filename" select="'1'"/>
+<xsl:param name="quiet" select="1"/>
+
+<xsl:include href="newolink.xsl"/>
+
+</xsl:stylesheet>
+
diff --git a/contrib/xsl-custom/newolink/tools/chunktargets.xsl b/contrib/xsl-custom/newolink/tools/chunktargets.xsl
new file mode 100644
index 000000000..0ec78c001
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/chunktargets.xsl
@@ -0,0 +1,48 @@
+<?xml version="1.0"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:t="http://sagehill.net/xsl/target/1.0"
+                version="1.0">
+
+<!-- Extracts cross reference target information from
+     a document that is going to be chunked in HTML output
+
+     Adjust this relative reference for importing the
+     standard chunk.xsl file.
+-->
+
+<xsl:import href="../../docbook-xsl-1.45/html/chunk.xsl"/>
+<xsl:include href="olink-common.xsl"/>
+
+<xsl:output method="xml" indent="yes"/>
+
+<xsl:param name="base-uri" select="''"/>
+<xsl:param name="use.id.as.filename" select="'1'"/>
+
+<xsl:param name="local.l10n.xml" select="document('')"/>
+<l:i18n xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0">
+  <l:l10n language="en">
+    <l:context name="xref">
+      <l:template name="refentry" text="%t"/>
+    </l:context>
+    <l:context name="section-xref">
+      <l:template name="refsect1" text="%t"/>
+    </l:context>
+    <l:gentext key="refsect1" text="Refsect1"/>
+  </l:l10n>
+</l:i18n>
+
+<xsl:template match="refentry" mode="xref-to">
+  <xsl:apply-templates select="." mode="object.xref.markup"/>
+</xsl:template>
+
+
+<xsl:template name="olink.href.target">
+  <xsl:param name="nd" select="."/>
+
+  <xsl:value-of select="$base-uri"/>
+  <xsl:call-template name="href.target">
+    <xsl:with-param name="obj" select="$nd"/>
+  </xsl:call-template>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/contrib/xsl-custom/newolink/tools/custom.xsl b/contrib/xsl-custom/newolink/tools/custom.xsl
new file mode 100644
index 000000000..80945a263
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/custom.xsl
@@ -0,0 +1,20 @@
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+        version="1.0">
+
+<!-- DocBook stylesheet driver file for processing DocBook
+     documents for single-file HTML output using a target database
+     for resolving olinks.
+
+     Adjust this relative reference for importing the
+     standard docbook.xsl file.
+-->
+
+<xsl:import href="../../docbook-xsl-1.45/html/docbook.xsl"/>
+<xsl:output method="html" indent="yes" encoding="UTF-8"/>
+
+<xsl:param name="target.database.document" select="''"/>
+
+<xsl:include href="newolink.xsl"/>
+
+</xsl:stylesheet>
+
diff --git a/contrib/xsl-custom/newolink/tools/newolink.xsl b/contrib/xsl-custom/newolink/tools/newolink.xsl
new file mode 100644
index 000000000..9d3a001ba
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/newolink.xsl
@@ -0,0 +1,132 @@
+<?xml version='1.0'?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:t="http://sagehill.net/xsl/target/1.0"
+                exclude-result-prefixes="t"
+                version='1.0'>
+
+<!-- New olink template to process olinks using an
+     external cross reference database
+     If an olink does not use a type="stylesheet" attribute,
+     then the behavior reverts to the old olink by
+     applying imports for the olink template from the
+     standard stylesheet.
+-->
+
+<xsl:template match="olink">
+
+  <!-- Open the database document passed on the command line -->
+  <xsl:variable name="target.database" 
+              select="document($target.database.document)"/>
+
+  <!-- Future feature to assemble generated text using local stylesheet -->
+  <xsl:variable name="olink.styled.locally" select="0"/>
+
+
+<!-- You can uncomment these message to see what is going on. 
+<xsl:message>
+  The database name is <xsl:value-of select="$target.database.document"/>
+  The targetset is <xsl:value-of select="$target.database/t:targetset"/>
+</xsl:message>
+-->
+
+<xsl:choose>
+  <xsl:when test="@type='stylesheet'">
+    <xsl:choose>
+      <xsl:when test="@targetdoc and @targetid">
+
+	<!-- Open data file for this document -->
+        <xsl:variable name="targetdatafilename" select="$target.database/t:targetset/t:document[@targetdoc=current()/@targetdoc]/@href" />
+        <xsl:variable name="targetdocset" select="document($target.database/t:targetset/t:document[@targetdoc=current()/@targetdoc]/@href)"/>
+
+	<!-- Get the cross reference href -->
+        <xsl:variable name="target.href" select="$targetdocset//*[@targetid=current()/@targetid]/@href"/>
+
+        <xsl:variable name="baseuri" select="$target.database/t:targetset/t:document[@targetdoc=current()/@targetdoc]/@baseuri"/>
+        <xsl:variable name="href">
+          <xsl:if test="$baseuri != ''">
+            <xsl:value-of select="$baseuri"/>
+            <xsl:if test="substring($target.href,1,1) != '#'">
+              <xsl:text>/</xsl:text>
+            </xsl:if>
+          </xsl:if>
+          <xsl:value-of select="$target.href"/>
+        </xsl:variable>
+
+	<!-- Uncomment to see what is going on 
+        <xsl:message>
+	    Opening document data file <xsl:value-of select="$targetdatafilename"/>
+            targetdoc is <xsl:value-of select="current()/@targetdoc"/>
+            targetid is <xsl:value-of select="current()/@targetid"/>
+            baseuri is <xsl:value-of select="$baseuri"/>
+            target.href is <xsl:value-of select="$target.href"/>
+            href is <xsl:value-of select="$href"/></xsl:message>
+	-->
+
+	<!-- Start the HTML output -->
+        <a href="{$href}">
+
+        <xsl:choose>
+	  <!-- If olink has content, use it -->
+          <xsl:when test="count(child::node()) &gt; 0">
+            <xsl:apply-templates/>
+          </xsl:when>
+	  <!-- Otherwise generate the text -->
+          <xsl:otherwise>
+            <xsl:choose>
+              <xsl:when test="$olink.styled.locally">
+		<!-- no-op until implemented
+                <xsl:call-template name="olink.localstyle">
+                </xsl:call-template>
+		-->
+              </xsl:when>
+              <xsl:otherwise>
+	      <!-- Use the text from the database -->
+                <xsl:variable name="xref.text" select="$targetdocset//*[@targetid=current()/@targetid]/t:xreftext"/>
+
+		<!-- Uncomment to display the text 
+<xsl:message>            xref.text is <xsl:value-of select="$xref.text"/>
+</xsl:message>
+		-->
+                <xsl:choose>
+                  <xsl:when test="$xref.text">
+                    <xsl:value-of select="$xref.text"/>
+                  </xsl:when>
+                  <xsl:otherwise>
+                    <xsl:message>
+                      Olink text not available
+                    </xsl:message>
+                    <xsl:text>MISSING OLINK TEXT</xsl:text>
+                  </xsl:otherwise>
+                </xsl:choose>
+              </xsl:otherwise>
+            </xsl:choose>
+          </xsl:otherwise>
+        </xsl:choose>
+
+	<!-- Close the anchor tag -->
+        </a>
+
+	<!-- Generate 'in document title' -->
+        <xsl:variable name="doctitle" 
+              select="$targetdocset/t:div[1]/t:ttl"/>
+	<xsl:if test="$doctitle">
+         <xsl:text> in </xsl:text>
+          <xsl:value-of select="$doctitle"/>
+	</xsl:if>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:message>
+          Olink of type of stylesheet is missing either targetdoc or targetid attribute.
+        </xsl:message>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:when>
+  <xsl:otherwise>
+        <!-- use the standard olink template -->
+        <xsl:apply-imports/>
+  </xsl:otherwise>
+</xsl:choose>
+  
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/contrib/xsl-custom/newolink/tools/olink-common.xsl b/contrib/xsl-custom/newolink/tools/olink-common.xsl
new file mode 100644
index 000000000..dcdcc5b7c
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/olink-common.xsl
@@ -0,0 +1,174 @@
+<?xml version="1.0"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:t="http://sagehill.net/xsl/target/1.0"
+                version="1.0">
+
+<!-- Templates for extracting cross reference information
+     from a document for use in an xref database.
+     It is included by targets.xsl and chunktargets.xsl.
+     This was modified from Norm Walsh's original olink-common.xsl.
+-->
+
+<xsl:template match="/">
+  <xsl:apply-templates mode="olink.mode"/>
+</xsl:template>
+
+<xsl:template name="attrs">
+  <xsl:param name="nd" select="."/>
+
+  <xsl:attribute name="element">
+    <xsl:value-of select="local-name(.)"/>
+  </xsl:attribute>
+
+  <xsl:attribute name="href">
+    <xsl:call-template name="olink.href.target">
+      <xsl:with-param name="obj" select="$nd"/>
+    </xsl:call-template>
+  </xsl:attribute>
+
+  <xsl:attribute name="name">
+    <xsl:call-template name="gentext.element.name"/>
+  </xsl:attribute>
+
+  <xsl:variable name="num">
+    <xsl:apply-templates select="$nd" mode="label.markup"/>
+  </xsl:variable>
+
+  <xsl:if test="$num">
+    <xsl:attribute name="number">
+      <xsl:value-of select="$num"/>
+    </xsl:attribute>
+  </xsl:if>
+
+  <xsl:if test="$nd/@id">
+    <xsl:attribute name="targetid">
+      <xsl:value-of select="$nd/@id"/>
+    </xsl:attribute>
+  </xsl:if>
+
+  <xsl:if test="$nd/@lang">
+    <xsl:attribute name="lang">
+      <xsl:value-of select="$nd/@lang"/>
+    </xsl:attribute>
+  </xsl:if>
+
+</xsl:template>
+
+<xsl:template name="div">
+  <xsl:param name="nd" select="."/>
+
+  <t:div>
+    <xsl:call-template name="attrs">
+      <xsl:with-param name="nd" select="$nd"/>
+    </xsl:call-template>
+    <t:ttl>
+      <xsl:apply-templates select="$nd" mode="title.markup"/>
+    </t:ttl>
+<!--    <t:divttl>
+      <xsl:apply-templates select="$nd" mode="object.title.markup"/>
+    </t:divttl>
+-->
+    <t:xreftext>
+      <xsl:choose>
+        <xsl:when test="$nd/@xreflabel">
+          <xsl:call-template name="xref.xreflabel">
+            <xsl:with-param name="target" select="$nd"/>
+          </xsl:call-template>
+        </xsl:when>
+        <xsl:otherwise>
+          <xsl:apply-templates select="$nd" mode="xref-to"/>
+        </xsl:otherwise>
+      </xsl:choose>
+    </t:xreftext>
+    <t:page>
+    </t:page>
+    <xsl:apply-templates mode="olink.mode"/>
+  </t:div>
+</xsl:template>
+
+<xsl:template name="obj">
+  <xsl:param name="nd" select="."/>
+
+  <t:obj>
+    <xsl:call-template name="attrs">
+      <xsl:with-param name="nd" select="$nd"/>
+    </xsl:call-template>
+    <t:ttl>
+      <xsl:apply-templates select="$nd" mode="title.markup"/>
+    </t:ttl>
+<!--    <t:objttl>
+      <xsl:apply-templates select="$nd" mode="object.title.markup"/>
+    </t:objttl>
+-->
+    <t:xreftext>
+      <xsl:choose>
+        <xsl:when test="$nd/@xreflabel">
+          <xsl:call-template name="xref.xreflabel">
+            <xsl:with-param name="target" select="$nd"/>
+          </xsl:call-template>
+        </xsl:when>
+        <xsl:otherwise>
+          <xsl:apply-templates select="$nd" mode="xref-to"/>
+        </xsl:otherwise>
+      </xsl:choose>
+    </t:xreftext>
+  </t:obj>
+</xsl:template>
+
+<xsl:template match="text()|processing-instruction()|comment()"
+              mode="olink.mode">
+  <!-- nop -->
+</xsl:template>
+
+<!--
+<xsl:template match="*" mode="olink.mode">
+</xsl:template>
+-->
+
+<xsl:template match="set" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="book" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="preface|chapter|appendix" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="part|reference" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="article" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="refentry" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="section|sect1|sect2|sect3|sect4|sect5" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="refsection|refsect1|refsect2|refsect3" mode="olink.mode">
+  <xsl:call-template name="div"/>
+</xsl:template>
+
+<xsl:template match="figure|example|table" mode="olink.mode">
+  <xsl:call-template name="obj"/>
+</xsl:template>
+
+<xsl:template match="equation[title]" mode="olink.mode">
+  <xsl:call-template name="obj"/>
+</xsl:template>
+
+<xsl:template match="*" mode="olink.mode">
+  <xsl:if test="@id">
+    <xsl:call-template name="obj"/>
+  </xsl:if> 
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/contrib/xsl-custom/newolink/tools/targetdatabase.dtd b/contrib/xsl-custom/newolink/tools/targetdatabase.dtd
new file mode 100644
index 000000000..7b2e1b0be
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/targetdatabase.dtd
@@ -0,0 +1,40 @@
+<!-- targetdatabase.dtd -->
+<!-- A DTD for managing cross reference target information -->
+
+<!ELEMENT targetset (targetsetinfo?, document+) >
+
+<!ELEMENT targetsetinfo (#PCDATA) >
+
+<!ELEMENT document (div*) >
+<!ATTLIST document
+        targetdoc CDATA   #REQUIRED
+        uri       CDATA   #IMPLIED
+        baseuri   CDATA   #IMPLIED
+        href      CDATA   #IMPLIED
+>
+
+<!ELEMENT div (ttl?, objttl?, xreftext?, page?, (div|obj)*)>
+<!ATTLIST div
+        targetid  CDATA   #REQUIRED
+        element   CDATA   #IMPLIED
+        name      CDATA   #IMPLIED
+        number    CDATA   #IMPLIED
+        href      CDATA   #IMPLIED
+        lang      CDATA   #IMPLIED
+>
+        
+        
+<!ELEMENT ttl (#PCDATA)>
+<!ELEMENT objttl (#PCDATA)>
+<!ELEMENT xreftext (#PCDATA)>
+<!ELEMENT page (#PCDATA)>
+
+<!ELEMENT obj (ttl?, objttl?, xreftext?, page?)>
+<!ATTLIST obj
+        targetid  CDATA   #REQUIRED
+        element   CDATA   #IMPLIED
+        name      CDATA   #IMPLIED
+        number    CDATA   #IMPLIED
+        href      CDATA   #IMPLIED
+        lang      CDATA   #IMPLIED
+>
diff --git a/contrib/xsl-custom/newolink/tools/targets.xsl b/contrib/xsl-custom/newolink/tools/targets.xsl
new file mode 100644
index 000000000..a4b015c70
--- /dev/null
+++ b/contrib/xsl-custom/newolink/tools/targets.xsl
@@ -0,0 +1,42 @@
+<?xml version="1.0"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:t="http://sagehill.net/xsl/target/1.0"
+                version="1.0">
+
+<!-- Extracts cross reference target information from
+     a document that is going to be output non-chunked in HTML.
+
+     Adjust this relative reference for importing the
+     standard docbook.xsl file.
+-->
+
+<xsl:import href="../../docbook-xsl-1.45/html/docbook.xsl"/>
+<xsl:include href="olink-common.xsl"/>
+
+<xsl:output method="xml" indent="yes" />
+
+<xsl:param name="base-uri" select="''"/>
+
+<xsl:param name="local.l10n.xml" select="document('')"/>
+<l:l10n language="en" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0">
+  <l:context name="xref">
+    <l:template name="refentry" text="%t"/>
+  </l:context>
+</l:l10n>
+
+<xsl:template match="refentry" mode="xref-to">
+  <xsl:apply-templates select="." mode="object.xref.markup"/>
+</xsl:template>
+
+
+
+<xsl:template name="olink.href.target">
+  <xsl:param name="nd" select="."/>
+
+  <xsl:value-of select="$base-uri"/>
+  <xsl:call-template name="href.target">
+    <xsl:with-param name="obj" select="$nd"/>
+  </xsl:call-template>
+</xsl:template>
+
+</xsl:stylesheet>
-- 
2.40.0