diff -r 82a4f1e453fb -r 41f42b520ea7 common/sysdefdowngrade/filtering.xsl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/sysdefdowngrade/filtering.xsl	Wed Jan 20 15:03:03 2010 +0000
@@ -0,0 +1,265 @@
+<?xml version="1.0"?>
+ <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:exslt="http://exslt.org/common"  exclude-result-prefixes="exslt">
+	<xsl:output method="xml" indent="yes"/>
+
+<!-- filter a sysdef (2.0 or 3.0 syntax)-->
+
+<xsl:param name="filter-type">only</xsl:param> <!-- only, has or with -->
+
+<xsl:param name="filter"/> <!-- comma-separated list -->
+
+<xsl:param name="addbuild" select="0"/> <!-- add a system build section that accepts everything -->
+
+
+<xsl:template match="node()|@*"><xsl:copy-of select="."/></xsl:template>
+<xsl:template match="*"><xsl:param name="data"/>
+	<xsl:copy>
+		<xsl:copy-of select="@*"/>
+		<xsl:apply-templates select="node()">
+			<xsl:with-param name="data" select="$data"/>
+		</xsl:apply-templates>
+	</xsl:copy>
+</xsl:template>
+
+<xsl:template match="component|unit"><xsl:param name="data"/> <!-- filterable items -->
+	 <xsl:variable name="display">
+	 	<xsl:apply-templates select="$data" mode="filter">
+			<xsl:with-param name="item" select="current()"/>
+		</xsl:apply-templates>
+	 </xsl:variable>
+	 
+	 <xsl:if test="$display != 'hide' "> <!-- if hide, remove completely from the output-->
+		<xsl:copy>
+			<xsl:copy-of select="@*"/>
+			<xsl:apply-templates select="node()">
+				<xsl:with-param name="data" select="$data"/>
+			</xsl:apply-templates>
+		</xsl:copy>
+	</xsl:if>
+</xsl:template>
+
+<xsl:template match="/SystemDefinition">
+	<xsl:variable name="f">
+		<xsl:element name="filter-{$filter-type}">
+			<xsl:call-template name="filter-list">
+				<xsl:with-param name="f" select="$filter"/>
+			</xsl:call-template>
+		</xsl:element>
+	</xsl:variable>
+	<xsl:choose>
+		<xsl:when test="starts-with(@schema,'3.0')"/> <!-- no DTD needed for 3.0 sysdef -->
+		<xsl:when test="$addbuild">
+			<xsl:call-template name="DTD-bld"/> <!-- insert 2.0.1 DTD w/sysbuild parts-->
+		</xsl:when>
+		<xsl:otherwise>
+			<xsl:call-template name="DTD"/> <!-- insert 2.0.1 DTD -->
+		</xsl:otherwise>
+	</xsl:choose>
+	<xsl:copy>
+		<xsl:copy-of select="@*"/>
+		<xsl:variable name="content"> <!-- save content for potential further processing -->
+			<xsl:apply-templates select="node()">
+				<xsl:with-param name="data" select="exslt:node-set($f)/*"/>
+			</xsl:apply-templates>
+		</xsl:variable>
+		<!-- just output content as is. We could create a template to remove any filtered out items, but so far there's no compelling need -->
+		<xsl:copy-of select="$content"/>  
+
+		<xsl:if test="$addbuild">
+			<SystemBuild schema="1.0.0">
+				<configuration name="any" description="text">
+					<xsl:attribute name="filter">
+						<xsl:for-each select="//@filter[not(.=following::*/@filter)]">
+							<xsl:value-of select="."/><xsl:if test="position()!=last()">,</xsl:if>
+						</xsl:for-each>
+					</xsl:attribute>
+					<xsl:for-each select="exslt:node-set($content)/systemModel/layer[descendant::unit]">
+						<!-- only include layers we know have units -->
+						<ref item="{@name}"/>
+					</xsl:for-each>
+				</configuration>
+			</SystemBuild>
+		</xsl:if>
+	</xsl:copy>
+</xsl:template>
+
+
+<xsl:include href="filter-module.xsl"/>
+
+<xsl:template name="DTD-bld">
+<xsl:text disable-output-escaping="yes"><![CDATA[<!DOCTYPE SystemDefinition [
+ <!ELEMENT SystemDefinition ( systemModel?, SystemBuild? )>
+ <!ATTLIST SystemDefinition
+  name CDATA #REQUIRED
+  schema CDATA #REQUIRED>
+ <!ELEMENT systemModel (layer+)>
+ <!ELEMENT layer (block* | collection*)*>
+ <!ATTLIST layer
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  levels NMTOKENS #IMPLIED
+  span CDATA #IMPLIED>
+ <!ELEMENT block (subblock* | collection*)*>
+ <!ATTLIST block
+  levels NMTOKENS #IMPLIED
+  span CDATA #IMPLIED
+  level NMTOKEN #IMPLIED
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED>
+ <!ELEMENT subblock (collection)*>
+ <!ATTLIST subblock
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED>
+ <!ELEMENT collection (component)*>
+ <!ATTLIST collection
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  level NMTOKEN #IMPLIED>
+ <!ELEMENT component (unit)*>
+ <!ATTLIST component
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  deprecated CDATA #IMPLIED
+  introduced CDATA #IMPLIED
+  contract CDATA #IMPLIED
+  plugin (Y|N) "N"
+  filter CDATA #IMPLIED
+  class NMTOKENS #IMPLIED
+  supports CDATA #IMPLIED
+  purpose ( optional | mandatory | development ) "optional">
+ <!ELEMENT unit EMPTY>
+ <!ATTLIST unit
+  mrp CDATA #IMPLIED
+  filter CDATA #IMPLIED
+  bldFile CDATA #IMPLIED
+  root CDATA #IMPLIED
+  version NMTOKEN #IMPLIED
+  prebuilt NMTOKEN #IMPLIED
+  late (Y|N) #IMPLIED
+  priority CDATA #IMPLIED>
+ <!ELEMENT SystemBuild (option* | target+ | targetList+ | list+ | configuration+)*>
+ <!ATTLIST SystemBuild schema CDATA #REQUIRED>
+ <!ELEMENT list (ref+)>
+ <!ATTLIST list
+  name ID #REQUIRED
+  description CDATA #REQUIRED>
+ <!ELEMENT ref EMPTY>
+ <!ATTLIST ref item CDATA #REQUIRED>
+ <!ELEMENT targetList EMPTY>
+ <!ATTLIST targetList
+  name ID #REQUIRED
+  description CDATA #REQUIRED
+  target IDREFS #REQUIRED>
+ <!ELEMENT target EMPTY>
+ <!ATTLIST target
+  name ID #REQUIRED
+  abldTarget CDATA #REQUIRED
+  description CDATA #REQUIRED>
+ <!ELEMENT option EMPTY>
+ <!ATTLIST option
+  name ID #REQUIRED
+  abldOption CDATA #REQUIRED
+  description CDATA #REQUIRED
+  enable (Y | N ) #REQUIRED>
+ <!ELEMENT configuration (listRef+ | ref+ | task+)*>
+ <!ATTLIST configuration
+  name ID #REQUIRED
+  description CDATA #REQUIRED
+  filter CDATA #REQUIRED>
+ <!ELEMENT task (listRef* , (buildLayer | specialInstructions))>
+ <!ELEMENT listRef EMPTY>
+ <!ATTLIST listRef list CDATA #REQUIRED>
+ <!ELEMENT buildLayer EMPTY>
+ <!ATTLIST buildLayer
+  command CDATA #REQUIRED
+  targetList IDREFS #IMPLIED
+  unitParallel (Y | N ) #REQUIRED
+  targetParallel (Y | N ) "N">
+ <!ELEMENT specialInstructions EMPTY>
+ <!ATTLIST specialInstructions
+  name CDATA #REQUIRED
+  cwd CDATA #REQUIRED
+  root CDATA #IMPLIED
+  command CDATA #REQUIRED>
+]>
+]]></xsl:text>
+</xsl:template>
+
+<xsl:template name="DTD">
+<xsl:text disable-output-escaping="yes"><![CDATA[<!DOCTYPE SystemDefinition [
+<!ELEMENT SystemDefinition ( systemModel )>
+<!ATTLIST SystemDefinition
+  name CDATA #REQUIRED
+  schema CDATA #REQUIRED
+>
+<!-- all paths are relative to the environment variable specified by the root attribute, or SOURCEROOT if not.  -->
+
+<!-- System Model Section of DTD -->
+<!ELEMENT systemModel (layer+)>
+
+<!ELEMENT layer (block* | collection*)*>
+<!-- Kernel Services, Base Services, OS Services, Etc -->
+<!ATTLIST layer
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  levels NMTOKENS #IMPLIED
+  span CDATA #IMPLIED
+>
+
+<!ELEMENT block (subblock* | collection*)*>
+ <!-- Generic OS services, Comms Services, etc -->
+<!ATTLIST block
+  levels NMTOKENS #IMPLIED
+  span CDATA #IMPLIED
+  level NMTOKEN #IMPLIED
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+>
+
+<!ELEMENT subblock (collection)*>
+<!-- Cellular Baseband Services, Networking Services, etc -->
+<!ATTLIST subblock
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+>
+
+<!ELEMENT collection (component)*>
+<!-- Screen Driver, Content Handling, etc -->
+<!ATTLIST collection
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  level NMTOKEN #IMPLIED
+>
+
+<!ELEMENT component (unit)*>
+<!-- contains units or is a  package or prebuilt -->
+<!ATTLIST component
+  name CDATA #REQUIRED
+  long-name CDATA #IMPLIED
+  deprecated CDATA #IMPLIED
+  introduced CDATA #IMPLIED
+  contract CDATA #IMPLIED
+  plugin (Y|N) "N"
+  filter CDATA #IMPLIED
+  class NMTOKENS #IMPLIED
+  supports CDATA #IMPLIED
+  purpose ( optional | mandatory | development ) "optional"
+>
+
+<!ELEMENT unit EMPTY >
+<!-- must be buildable (bld.inf) -->
+<!-- bldFile  may someday be removed in favour of mrp -->
+<!ATTLIST unit
+  mrp CDATA #IMPLIED
+  filter CDATA #IMPLIED
+  bldFile CDATA #IMPLIED
+  root CDATA #IMPLIED
+  version NMTOKEN #IMPLIED
+  prebuilt NMTOKEN #IMPLIED
+  late (Y|N) #IMPLIED
+  priority CDATA #IMPLIED
+>
+]>
+]]></xsl:text>
+</xsl:template>
+</xsl:stylesheet>	
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