Subject: RE: [xsl] Pattern Matching in XSl - find groups defined in one Xml in another Xml. From: "Kerry, Richard" <richard.kerry@xxxxxxxx> Date: Wed, 29 Aug 2012 16:16:27 +0000 |
Regarding Ken's solutions from last Wednesday (repeated below), why is it : <xsl:analyze-string select="$thisAlarm/@equipment" regex="^{$thisGroupedAlarm/@equipment}$"> <xsl:matching-substring> <xsl:for-each select="regex-group(1)[normalize-space(.)]"> <xsl:attribute name="found-key" select="."/> </xsl:for-each> </xsl:matching-substring> </xsl:analyze-string> rather than <xsl:analyze-string select="$thisAlarm/@equipment" regex="^{$thisGroupedAlarm/@equipment}$"> <xsl:matching-substring> <xsl:attribute name="found-key" select="regex-group(1)"/> </xsl:matching-substring> </xsl:analyze-string> ? What does the [normalize-space(.)] predicate do for us ? Uncertainly, Richard. PS. By the way, this does seem to give the right results. I'm only now getting back to looking at it and working out how it works, having had a few days off over the (UK) Bank Holiday weekend. Richard Kerry BNCS Engineer T: +44 (0)20 82259063 M: +44 (0)7812 325518 Room EBX 301, BBC Television Centre, Wood Lane, London, W12 7RJ richard.kerry@xxxxxxxx uk.atos.net This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Atos group liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted. ________________________________________ From: G. Ken Holman [g.ken.holman@xxxxxxxxx] on behalf of G. Ken Holman Sent: 22 August 2012 18:29 ~/t/ftemp $ cat richard.xsl <?xml version="1.0" encoding="US-ASCII"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output indent="yes"/> <xsl:variable name="groupedAlarms" select="doc('groups.xml')/groups/group"/> <xsl:template match="area"> <xsl:copy> <xsl:apply-templates select="@*"/> <xsl:variable name="thisAlarmArea" select="."/> <!--find all alarm groups where every group member is in the alarm--> <xsl:variable name="foundGroups" select="$groupedAlarms (:there can be no mis-matches:) [every $groupAlarm in alarm satisfies some $areaAlarm in $thisAlarmArea/alarm satisfies matches( $areaAlarm/@equipment, concat('^',$groupAlarm/@equipment,'$'))]" /> <!--walk through the area alarms, annotating those that are found in the found groups (ignoring those groups where not all were found)--> <xsl:for-each select="alarm"> <xsl:copy> <xsl:apply-templates select="@*"/> <xsl:variable name="thisAreaAlarm" select="."/> <!--only bother looking through the found groups, not others--> <xsl:for-each select="$foundGroups"> <xsl:for-each select="alarm[matches($thisAreaAlarm/@equipment, concat('^',@equipment,'$'))]"> <!--found the grouped alarm that the area alarm matches--> <xsl:variable name="thisGroupedAlarm" select="."/> <xsl:attribute name="found" select="../@id"/> <xsl:analyze-string select="$thisAreaAlarm/@equipment" regex="^{$thisGroupedAlarm/@equipment}$"> <xsl:matching-substring> <xsl:for-each select="regex-group(1)[normalize-space(.)]"> <xsl:attribute name="found-group"> <xsl:number select="$thisGroupedAlarm"/> </xsl:attribute> <xsl:attribute name="found-key" select="."/> </xsl:for-each> </xsl:matching-substring> </xsl:analyze-string> </xsl:for-each> </xsl:for-each> </xsl:copy> </xsl:for-each> </xsl:copy> </xsl:template> <xsl:template match="@*|node()"><!--identity for all other nodes--> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> </xsl:stylesheet>~/t/ftemp $ ~/t/ftemp $ -- Public XSLT, XSL-FO, UBL and code list classes in Europe -- Oct 2012 Contact us for world-wide XML consulting and instructor-led training Free 5-hour lecture: http://www.CraneSoftwrights.com/links/udemy.htm Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/ G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx Google+ profile: https://plus.google.com/116832879756988317389/about Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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