Add initial changes needed for autogenerated dbus introspection documentation

6 files changed, 523 insertions, 5 deletions

diff --git a/docs/api/Makefile.am b/docs/api/Makefile.am
index 01bed5127..28ba3e410 100644
--- a/docs/api/Makefile.am
+++ b/docs/api/Makefile.am
@@ -1,5 +1,7 @@
 ## Process this file with automake to produce Makefile.in
 
+SUBDIRS = dbus
+
 NULL =
 
 # We require automake 1.6 at least.
@@ -45,7 +47,10 @@ IGNORE_HFILES =						\
 HTML_IMAGES=
 
 # Extra SGML files that are included by $(DOC_MAIN_SGML_FILE).
-content_files = version.xml
+content_files =						\
+	version.xml					\
+	dbus/pk-interface.ref.xml			\
+	$(NULL)
 
 # SGML files where gtk-doc abbrevations (#GtkWidget) are expanded
 # These files must be listed here *and* in content_files
diff --git a/docs/api/PackageKit-docs.sgml b/docs/api/PackageKit-docs.sgml
index 7b4a1cc02..142dd5674 100644
--- a/docs/api/PackageKit-docs.sgml
+++ b/docs/api/PackageKit-docs.sgml
@@ -8,13 +8,35 @@
     <title>PackageKit Reference Manual</title>
     <releaseinfo>
       for PackageKit &version;
-      <!--
-      The latest version of this documentation can be found on-line at
-      <ulink role="online-location" url="http://[SERVER]/PackageKit/index.html">http://[SERVER]/PackageKit/</ulink>.
-      -->
     </releaseinfo>
+    <authorgroup>
+      <author>
+        <firstname>Richard</firstname>
+        <surname>Hughes</surname>
+        <affiliation>
+          <address>
+            <email>richard@hughsie.com</email>
+          </address>
+        </affiliation>
+      </author>
+    </authorgroup>
+    <copyright>
+      <year>2008</year>
+      <holder>The PackageKit Authors</holder>
+    </copyright>
   </bookinfo>
 
+  <reference id="ref-dbus">
+    <title>D-Bus API Reference</title>
+    <partintro>
+      <para>
+        This part documents the D-Bus interface used to access the PackageKit daemon.
+      </para>
+    </partintro>
+    <xi:include href="dbus/pk-interface.ref.xml"/>
+    <xi:include href="dbus/pk-interface-transaction.ref.xml"/>
+  </reference>
+
   <chapter>
     <title>libpackagekit</title>
     <xi:include href="xml/pk-connection.xml"/>
diff --git a/docs/api/dbus/.gitignore b/docs/api/dbus/.gitignore
new file mode 100644
index 000000000..8a26d41c7
--- /dev/null
+++ b/docs/api/dbus/.gitignore
@@ -0,0 +1,2 @@
+*.ref.xml
+
diff --git a/docs/api/dbus/Makefile.am b/docs/api/dbus/Makefile.am
new file mode 100644
index 000000000..d7a221ca5
--- /dev/null
+++ b/docs/api/dbus/Makefile.am
@@ -0,0 +1,21 @@
+
+if ENABLE_GTK_DOC
+
+all : pk-interface.ref.xml pk-interface-transaction.ref.xml
+
+pk-interface.ref.xml : $(top_srcdir)/src/pk-interface.xml $(top_srcdir)/docs/api/dbus/spec-to-docbook.xsl
+	echo "<?xml version=\"1.0\"?>""<!DOCTYPE refentry PUBLIC \"-//OASIS//DTD DocBook XML V4.1.2//EN\" \"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd\">" > $@
+	$(XSLTPROC) $(top_srcdir)/docs/api/dbus/spec-to-docbook.xsl $< | tail -n +2 >> $@
+
+pk-interface-transaction.ref.xml : $(top_srcdir)/src/pk-interface-transaction.xml $(top_srcdir)/docs/api/dbus/spec-to-docbook.xsl
+	echo "<?xml version=\"1.0\"?>""<!DOCTYPE refentry PUBLIC \"-//OASIS//DTD DocBook XML V4.1.2//EN\" \"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd\">" > $@
+	$(XSLTPROC) $(top_srcdir)/docs/api/dbus/spec-to-docbook.xsl $< | tail -n +2 >> $@
+
+#$(top_srcdir)/docs/api/dbus/spec-to-docbook $(top_srcdir)/src/pk-interface.xml
+
+endif
+
+EXTRA_DIST = spec-to-docbook.xsl dbus-introspect-docs.dtd
+
+clean-local :
+	rm -f *~ *.ref.xml
diff --git a/docs/api/dbus/dbus-introspect-docs.dtd b/docs/api/dbus/dbus-introspect-docs.dtd
new file mode 100644
index 000000000..5fe508ef3
--- /dev/null
+++ b/docs/api/dbus/dbus-introspect-docs.dtd
@@ -0,0 +1,32 @@
+<!-- DTD for D-Bus Introspection Documentation -->
+
+<!ELEMENT doc (summary?,description?,errors?,permission?,since?,deprecated,seealso?)>
+
+<!ELEMENT summary (#PCDATA|ref)*>
+<!ELEMENT description (#PCDATA|para|example)*>
+<!ELEMENT errors (error)*>
+<!ELEMENT permission (#PCDATA|ref|para)*>
+<!ELEMENT since EMPTY>
+<!ATTLIST since version CDATA #REQUIRED>
+<!ELEMENT deprecated (#PCDATA|ref)>
+<!ATTLIST deprecated version CDATA #REQUIRED>
+<!ATTLIST deprecated instead CDATA #REQUIRED>
+<!ELEMENT seealso (ref+)>
+
+<!ELEMENT error (#PCDATA|para)*>
+<!ATTLIST error name CDATA #REQUIRED>
+<!ELEMENT para (#PCDATA|example|code|list|ref)*>
+<!ELEMENT example (#PCDATA|para|code|ref)*>
+<!ATTLIST language (c|glib|python|shell) #REQUIRED>
+<!ATTLIST title CDATA #IMPLIED>
+<!ELEMENT list (listheader?, item*)>
+<!ATTLIST list type (bullet|number|table) #REQUIRED>
+<!ELEMENT item (term|definition)*>
+<!ELEMENT term (#PCDATA|ref)*>
+<!ELEMENT definition (#PCDATA|para)*>
+
+<!ELEMENT code (#PCDATA)>
+<!ATTLIST code lang CDATA #IMPLIED>
+<!ELEMENT ref CDATA>
+<!ATTLIST ref type (parameter|arg|signal|method|interface) #REQUIRED>
+<!ATTLIST ref to CDATA #REQUIRED>
diff --git a/docs/api/dbus/spec-to-docbook.xsl b/docs/api/dbus/spec-to-docbook.xsl
new file mode 100644
index 000000000..fccf887fe
--- /dev/null
+++ b/docs/api/dbus/spec-to-docbook.xsl
@@ -0,0 +1,436 @@
+<?xml version='1.0'?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd"
+  exclude-result-prefixes="doc">
+<!--
+     Convert D-Bus Glib xml into DocBook refentries
+     Copyright (C) 2007 William Jon McCann
+     License: GPL
+-->
+<xsl:output method="xml" indent="yes" encoding="UTF-8"/>
+
+<xsl:template match="/">
+
+<xsl:variable name="interface" select="//interface/@name"/>
+<xsl:variable name="basename">
+  <xsl:call-template name="interface-basename">
+    <xsl:with-param name="str" select="$interface"/>
+  </xsl:call-template>
+</xsl:variable>
+
+<refentry><xsl:attribute name="id"><xsl:value-of select="$basename"/></xsl:attribute>
+  <refmeta>
+    <refentrytitle role="top_of_page"><xsl:value-of select="//interface/@name"/></refentrytitle>
+  </refmeta>
+
+  <refnamediv>
+    <refname><xsl:value-of select="//interface/@name"/></refname>
+    <refpurpose><xsl:value-of select="$basename"/> interface</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv role="synopsis">
+    <title role="synopsis.title">Methods</title>
+    <synopsis>
+  <xsl:call-template name="methods-synopsis">
+    <xsl:with-param name="basename" select="$basename"/>
+  </xsl:call-template>
+    </synopsis>
+  </refsynopsisdiv>
+
+  <refsect1 role="signal_proto">
+    <title role="signal_proto.title">Signals</title>
+    <synopsis>
+  <xsl:call-template name="signals-synopsis">
+    <xsl:with-param name="basename" select="$basename"/>
+  </xsl:call-template>
+    </synopsis>
+  </refsect1>
+
+  <refsect1 role="impl_interfaces">
+    <title role="impl_interfaces.title">Implemented Interfaces</title>
+    <para>
+    <xsl:value-of select="$interface"/> implements
+    org.freedesktop.DBus.Introspectable,
+    org.freedesktop.DBus.Properties
+    </para>
+  </refsect1>
+
+  <refsect1 role="properties">
+    <title role="properties.title">Properties</title>
+    <synopsis>
+  <xsl:call-template name="properties-synopsis">
+    <xsl:with-param name="basename" select="$basename"/>
+  </xsl:call-template>
+    </synopsis>
+  </refsect1>
+
+  <refsect1 role="desc">
+    <title role="desc.title">Description</title>
+    <para>
+      <xsl:apply-templates select="//interface/doc:doc"/>
+    </para>
+  </refsect1>
+
+  <refsect1 role="details">
+    <title role="details.title">Details</title>
+    <xsl:call-template name="method-details">
+      <xsl:with-param name="basename" select="$basename"/>
+    </xsl:call-template>
+  </refsect1>
+
+  <refsect1 role="signals">
+    <title role="signals.title">Signal Details</title>
+    <xsl:call-template name="signal-details">
+      <xsl:with-param name="basename" select="$basename"/>
+    </xsl:call-template>
+  </refsect1>
+
+  <refsect1 role="property_details">
+    <title role="property_details.title">Property Details</title>
+    <xsl:call-template name="property-details">
+      <xsl:with-param name="basename" select="$basename"/>
+    </xsl:call-template>
+  </refsect1>
+
+</refentry>
+</xsl:template>
+
+
+<xsl:template name="property-doc">
+  <xsl:apply-templates select="doc:doc/doc:description"/>
+
+  <variablelist role="params">
+    <xsl:for-each select="arg">
+<varlistentry><term><parameter><xsl:value-of select="@name"/></parameter>:</term>
+<listitem><simpara><xsl:value-of select="doc:doc/doc:summary"/></simpara></listitem>
+</varlistentry>
+    </xsl:for-each>
+  </variablelist>
+
+  <xsl:apply-templates select="doc:doc/doc:since"/>
+  <xsl:apply-templates select="doc:doc/doc:deprecated"/>
+  <xsl:apply-templates select="doc:doc/doc:permission"/>
+  <xsl:apply-templates select="doc:doc/doc:seealso"/>
+</xsl:template>
+
+
+<xsl:template name="property-details">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///property">
+  <refsect2>
+    <title><anchor role="function"><xsl:attribute name="id"><xsl:value-of select="$basename"/>:<xsl:value-of select="@name"/></xsl:attribute></anchor>The "<xsl:value-of select="@name"/>" property</title>
+<indexterm><primary><xsl:value-of select="@name"/></primary><secondary><xsl:value-of select="$basename"/></secondary></indexterm>
+<programlisting>'<xsl:value-of select="@name"/>'<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="2"/></xsl:call-template>
+<xsl:call-template name="property-args"><xsl:with-param name="indent" select="string-length(@name) + 2"/></xsl:call-template></programlisting>
+  </refsect2>
+
+  <xsl:call-template name="property-doc"/>
+
+  </xsl:for-each>
+</xsl:template>
+
+<xsl:template name="signal-doc">
+  <xsl:apply-templates select="doc:doc/doc:description"/>
+
+  <variablelist role="params">
+    <xsl:for-each select="arg">
+<varlistentry><term><parameter><xsl:value-of select="@name"/></parameter>:</term>
+<listitem><simpara><xsl:value-of select="doc:doc/doc:summary"/></simpara></listitem>
+</varlistentry>
+    </xsl:for-each>
+  </variablelist>
+
+  <xsl:apply-templates select="doc:doc/doc:since"/>
+  <xsl:apply-templates select="doc:doc/doc:deprecated"/>
+  <xsl:apply-templates select="doc:doc/doc:permission"/>
+  <xsl:apply-templates select="doc:doc/doc:seealso"/>
+</xsl:template>
+
+<xsl:template name="signal-details">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///signal">
+  <refsect2>
+    <title><anchor role="function"><xsl:attribute name="id"><xsl:value-of select="$basename"/>::<xsl:value-of select="@name"/></xsl:attribute></anchor>The <xsl:value-of select="@name"/> signal</title>
+<indexterm><primary><xsl:value-of select="@name"/></primary><secondary><xsl:value-of select="$basename"/></secondary></indexterm>
+<programlisting><xsl:value-of select="@name"/> (<xsl:call-template name="signal-args"><xsl:with-param name="indent" select="string-length(@name) + 2"/><xsl:with-param name="prefix" select="."/></xsl:call-template>)</programlisting>
+  </refsect2>
+
+  <xsl:call-template name="signal-doc"/>
+
+  </xsl:for-each>
+</xsl:template>
+
+<xsl:template match="doc:code">
+<programlisting>
+<xsl:apply-templates />
+</programlisting>
+</xsl:template>
+
+<xsl:template match="doc:summary">
+<!-- by default don't display -->
+</xsl:template>
+
+<xsl:template match="doc:example">
+<informalexample>
+<xsl:apply-templates />
+</informalexample>
+</xsl:template>
+
+<xsl:template match="doc:para">
+<para>
+<xsl:apply-templates />
+</para>
+</xsl:template>
+
+<xsl:template match="doc:description">
+<xsl:apply-templates />
+</xsl:template>
+
+<xsl:template match="doc:since">
+<para role="since">Since <xsl:value-of select="@version"/>
+</para>
+</xsl:template>
+
+<xsl:template match="doc:deprecated">
+  <xsl:variable name="name" select="../../@name"/>
+  <xsl:variable name="parent">
+    <xsl:call-template name="interface-basename">
+      <xsl:with-param name="str" select="../../../@name"/>/>
+    </xsl:call-template>
+  </xsl:variable>
+
+  <xsl:variable name="type" select="name(../..)"/>
+
+  <para role="deprecated">
+  <warning><para><literal><xsl:value-of select="$name"/></literal> is deprecated since version <xsl:value-of select="@version"/> and should not be used in newly-written code. Use
+
+  <xsl:variable name="to">
+  <xsl:choose>
+    <xsl:when test="contains($type,'property')">
+      <xsl:value-of select="$parent"/>:<xsl:value-of select="@instead"/>
+    </xsl:when>
+    <xsl:when test="contains($type,'signal')">
+      <xsl:value-of select="$parent"/>::<xsl:value-of select="@instead"/>
+    </xsl:when>
+    <xsl:when test="contains($type,'method')">
+      <xsl:value-of select="$parent"/>.<xsl:value-of select="@instead"/>
+    </xsl:when>
+    <xsl:when test="contains($type,'interface')">
+      <xsl:value-of select="@instead"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="@instead"/>
+    </xsl:otherwise>
+  </xsl:choose>
+  </xsl:variable>
+
+  <xsl:call-template name="create-link">
+    <xsl:with-param name="type" select="$type"/>
+    <xsl:with-param name="to" select="$to"/>
+    <xsl:with-param name="val" select="@instead"/>
+  </xsl:call-template>
+instead.</para></warning>
+</para>
+</xsl:template>
+
+<xsl:template match="doc:permission">
+<para role="permission">
+<xsl:apply-templates />
+</para>
+</xsl:template>
+
+<xsl:template match="doc:seealso">
+<para>
+See also:
+<xsl:apply-templates />
+
+</para>
+</xsl:template>
+
+<xsl:template name="create-link">
+  <xsl:param name="type"/>
+  <xsl:param name="to"/>
+  <xsl:param name="val"/>
+
+  <xsl:choose>
+    <xsl:when test="contains($type,'property')">
+      <link><xsl:attribute name="linkend"><xsl:value-of select="$to"/></xsl:attribute><literal><xsl:value-of select="$val"/></literal></link>
+    </xsl:when>
+    <xsl:when test="contains($type,'signal')">
+      <link><xsl:attribute name="linkend"><xsl:value-of select="$to"/></xsl:attribute><literal><xsl:value-of select="$val"/></literal></link>
+    </xsl:when>
+    <xsl:when test="contains($type,'method')">
+      <link><xsl:attribute name="linkend"><xsl:value-of select="$to"/></xsl:attribute><function><xsl:value-of select="$val"/></function></link>
+    </xsl:when>
+    <xsl:when test="contains($type,'interface')">
+      <link><xsl:attribute name="linkend"><xsl:value-of select="$to"/></xsl:attribute><xsl:value-of select="$val"/></link>
+    </xsl:when>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template match="doc:ref">
+  <xsl:call-template name="create-link">
+    <xsl:with-param name="type" select="@type"/>
+    <xsl:with-param name="to" select="@to"/>
+    <xsl:with-param name="val" select="."/>
+  </xsl:call-template>
+</xsl:template>
+
+<xsl:template name="method-doc">
+  <xsl:apply-templates select="doc:doc/doc:description"/>
+
+  <variablelist role="params">
+    <xsl:for-each select="arg">
+<varlistentry><term><parameter><xsl:value-of select="@name"/></parameter>:</term>
+<listitem><simpara><xsl:value-of select="doc:doc/doc:summary"/></simpara></listitem>
+</varlistentry>
+    </xsl:for-each>
+  </variablelist>
+
+  <xsl:apply-templates select="doc:doc/doc:since"/>
+  <xsl:apply-templates select="doc:doc/doc:deprecated"/>
+  <xsl:apply-templates select="doc:doc/doc:permission"/>
+  <xsl:apply-templates select="doc:doc/doc:seealso"/>
+</xsl:template>
+
+<xsl:template name="method-details">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///method">
+    <refsect2>
+    <title><anchor role="function"><xsl:attribute name="id"><xsl:value-of select="$basename"/>.<xsl:value-of select="@name"/></xsl:attribute></anchor><xsl:value-of select="@name"/> ()</title>
+<indexterm><primary><xsl:value-of select="@name"/></primary><secondary><xsl:value-of select="$basename"/></secondary></indexterm>
+<programlisting><xsl:value-of select="@name"/> (<xsl:call-template name="method-args"><xsl:with-param name="indent" select="string-length(@name) + 2"/><xsl:with-param name="prefix" select="."/></xsl:call-template>)</programlisting>
+    </refsect2>
+
+    <xsl:call-template name="method-doc"/>
+
+  </xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="properties-synopsis">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="///property/@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///property">
+<link><xsl:attribute name="linkend"><xsl:value-of select="$basename"/>:<xsl:value-of select="@name"/></xsl:attribute>'<xsl:value-of select="@name"/>'</link><xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$longest - string-length(@name) + 1"/></xsl:call-template> <xsl:call-template name="property-args"><xsl:with-param name="indent" select="$longest + 2"/></xsl:call-template>
+</xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="signals-synopsis">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="///signal/@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///signal">
+<link><xsl:attribute name="linkend"><xsl:value-of select="$basename"/>::<xsl:value-of select="@name"/></xsl:attribute><xsl:value-of select="@name"/></link><xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$longest - string-length(@name) + 1"/></xsl:call-template>(<xsl:call-template name="signal-args"><xsl:with-param name="indent" select="$longest + 2"/><xsl:with-param name="prefix" select="///signal"/></xsl:call-template>)
+</xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="methods-synopsis">
+  <xsl:param name="basename"/>
+  <xsl:variable name="longest">
+    <xsl:call-template name="find-longest">
+      <xsl:with-param name="set" select="///method/@name"/>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:for-each select="///method">
+<link><xsl:attribute name="linkend"><xsl:value-of select="$basename"/>.<xsl:value-of select="@name"/></xsl:attribute><xsl:value-of select="@name"/></link><xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$longest - string-length(@name) + 1"/></xsl:call-template>(<xsl:call-template name="method-args"><xsl:with-param name="indent" select="$longest + 2"/><xsl:with-param name="prefix" select="///method"/></xsl:call-template>)
+</xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="method-args"><xsl:param name="indent"/><xsl:param name="prefix"/><xsl:variable name="longest"><xsl:call-template name="find-longest"><xsl:with-param name="set" select="$prefix/arg/@type"/></xsl:call-template></xsl:variable><xsl:for-each select="arg"><xsl:value-of select="@direction"/>
+<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="4 - string-length(@direction)"/></xsl:call-template>'<xsl:value-of select="@type"/>'<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$longest - string-length(@type) + 1"/></xsl:call-template>
+<xsl:value-of select="@name"/><xsl:if test="not(position() = last())">,
+<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$indent"/></xsl:call-template></xsl:if>
+</xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="signal-args"><xsl:param name="indent"/><xsl:param name="prefix"/><xsl:variable name="longest"><xsl:call-template name="find-longest"><xsl:with-param name="set" select="$prefix/arg/@type"/></xsl:call-template></xsl:variable><xsl:for-each select="arg">'<xsl:value-of select="@type"/>'<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$longest - string-length(@type) + 1"/></xsl:call-template>
+<xsl:value-of select="@name"/><xsl:if test="not(position() = last())">,
+<xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="$indent"/></xsl:call-template></xsl:if>
+</xsl:for-each>
+</xsl:template>
+
+
+<xsl:template name="property-args"><xsl:param name="indent"/>
+<xsl:value-of select="@access"/><xsl:call-template name="pad-spaces"><xsl:with-param name="width" select="9 - string-length(@access) + 1"/></xsl:call-template>'<xsl:value-of select="@type"/>'
+</xsl:template>
+
+
+<xsl:template name="pad-spaces">
+  <xsl:param name="width"/>
+  <xsl:variable name="spaces" xml:space="preserve">                                                                        </xsl:variable>
+  <xsl:value-of select="substring($spaces,1,$width)"/>
+</xsl:template>
+
+
+<xsl:template name="find-longest">
+  <xsl:param name="set"/>
+  <xsl:param name="index" select="1"/>
+  <xsl:param name="longest" select="0"/>
+
+  <xsl:choose>
+    <xsl:when test="$index > count($set)">
+      <!--finished looking-->
+      <xsl:value-of select="$longest"/>
+    </xsl:when>
+    <xsl:when test="string-length($set[$index])>$longest">
+      <!--found new longest-->
+      <xsl:call-template name="find-longest">
+        <xsl:with-param name="set" select="$set"/>
+        <xsl:with-param name="index" select="$index + 1"/>
+        <xsl:with-param name="longest" select="string-length($set[$index])"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:otherwise>
+      <!--this isn't any longer-->
+      <xsl:call-template name="find-longest">
+        <xsl:with-param name="set" select="$set"/>
+        <xsl:with-param name="index" select="$index + 1"/>
+        <xsl:with-param name="longest" select="$longest"/>
+      </xsl:call-template>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+
+<xsl:template name="interface-basename">
+  <xsl:param name="str"/>
+  <xsl:choose>
+    <xsl:when test="contains($str,'.')">
+      <xsl:call-template name="interface-basename">
+	<xsl:with-param name="str" select="substring-after($str,'.')"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="$str"/>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>