--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/metatools/sysdeftools/lib/filter-module.xsl Wed Jul 28 13:20:46 2010 +0100
@@ -0,0 +1,123 @@
+<?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">
+<!--Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ All rights reserved.
+ This component and the accompanying materials are made available
+ under the terms of the License "Eclipse Public License v1.0"
+ which accompanies this distribution, and is available
+ at the URL "http://www.eclipse.org/legal/epl-v10.html".
+
+ Initial Contributors:
+ Nokia Corporation - initial contribution.
+ Contributors:
+ Description:
+ XSLT module which contains the logic to process the filter attribute in the system definition
+-->
+ <xsl:output method="xml" indent="yes"/>
+
+
+<!-- filters can only return hide or show -->
+
+<!-- filter-only = item's @filter can only have items from the list
+ anything with no filters passes
+-->
+<xsl:template match="filter-only" mode="filter"><xsl:param name="item"/>
+ <xsl:if test="$item[@filter]">
+ <xsl:variable name="this" select="."/>
+ <xsl:variable name="my-filters">
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/parent::component/@filter"/>
+ </xsl:call-template>
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/@filter"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:variable name="match">
+ <xsl:for-each select="exslt:node-set($my-filters)/*">
+ <xsl:if test="not($this/*[name()=name(current()) and @v=current()/@v])">x</xsl:if>
+ </xsl:for-each>
+ </xsl:variable>
+ <xsl:if test="$match!=''">hide</xsl:if>
+ </xsl:if>
+</xsl:template>
+
+
+
+<!-- filter-has = item's @filter must have all filters in the list. ie it can have any other filters, but these must all be present
+-->
+<xsl:template match="filter-has" mode="filter"><xsl:param name="item"/>
+ <xsl:if test="$item[self::component and not(unit/@filter)] or $item[self::unit and ../unit/@filter]">
+ <xsl:variable name="my-filters">
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/parent::component/@filter"/>
+ </xsl:call-template>
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/@filter"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:variable name="match">
+ <xsl:for-each select="*">
+ <!-- if(f in this) {return true} else if(!f in this) {return false} else {return !(f is positive)} -->
+ <xsl:choose>
+ <xsl:when test="exslt:node-set($my-filters)/*[name()=name(current()) and @v=current()/@v]"/> <!-- filter in item -->
+ <xsl:when test="exslt:node-set($my-filters)/*[name()!=name(current()) and @v=current()/@v]">x</xsl:when> <!-- !filter in item -->
+ <xsl:when test="self::filter">x</xsl:when> <!-- !(filter is positive) -->
+ </xsl:choose>
+ </xsl:for-each>
+ </xsl:variable>
+ <xsl:if test="$match!=''">hide</xsl:if>
+ </xsl:if>
+</xsl:template>
+
+<xsl:template match="filter-with" mode="filter"><xsl:param name="item"/>
+ <xsl:if test="$item[(self::component or self::unit) and not(unit/@filter or self::unit[not(../unit[@filter])])]">
+ <xsl:variable name="my-filters">
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/parent::component/@filter"/>
+ </xsl:call-template>
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="$item/@filter"/>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:variable name="match">
+ <xsl:for-each select="*">
+ <xsl:if test="exslt:node-set($my-filters)/*[name()!=name(current()) and @v=current()/@v]">x</xsl:if> <!-- !filter in item -->
+ </xsl:for-each>
+ </xsl:variable>
+ <xsl:if test="$match!=''">hide</xsl:if>
+ </xsl:if>
+</xsl:template>
+
+
+
+<xsl:template name="filter-item"> <xsl:param name="f"/>
+ <!-- create an element for a given filter. If the filter's empty make nothing -->
+ <xsl:choose>
+ <xsl:when test="$f=''"/>
+ <xsl:when test="starts-with($f,'!')">
+ <not v="{substring($f,2)}"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <filter v="{$f}"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:template name="filter-list"><xsl:param name="f"/>
+ <!-- turn a filter list into a set of elements (<filter> or <not>) with the attribute "v" containing the "absolute value" of the filter
+ filter="A,B,!C" becomes <filter v="A"/><filter v="B"/><not v="C"/>
+ -->
+ <xsl:choose>
+ <xsl:when test="contains($f,',')">
+ <xsl:call-template name="filter-item"><xsl:with-param name="f" select="normalize-space(substring-before($f,','))"/></xsl:call-template>
+ <xsl:call-template name="filter-list">
+ <xsl:with-param name="f" select="substring-after($f,',')"/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="filter-item"><xsl:with-param name="f" select="normalize-space($f)"/></xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>
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