Copy-All.xsl - Revision history

Syd at 12:17, 9 April 2011

2011-04-09T12:17:26Z

2011-04-09T12:16:45Z

add efficient version

2011-03-29T07:26:12Z

‎Introduction: add reference to identity transform

2008-09-05T20:09:09Z

‎P5 namespace version: remove redundancies

2008-09-05T20:07:49Z

remove redundancy in match= and select=

2007-04-02T12:31:06Z

link fix

2006-10-06T00:48:17Z

2006-10-06T00:46:16Z

remove blank before XML declaration

2006-08-29T14:03:16Z

‎Copy-All-P5.xsl: renamed

2006-08-29T14:00:10Z

Added P5 variant

@@ Line 59: / Line 59: @@
 </nowiki></pre>
-== efficient version ==
+== More efficient version ==
 The “identity transform” used in the above versions is very easy for the humans to write, and pretty easy to understand. But it is potentially quite in efficient, because for '''every''' node the processor has to go around applying templates and building little result tree fragments, even for those nodes for which there never is anything inside it, in which case just copying the node to the result tree is (in theory) faster.

← Older revision		Revision as of 12:16, 9 April 2011
Line 57:		Line 57:

	</xsl:stylesheet>		</xsl:stylesheet>
		+	</nowiki></pre>
		+
		+	== efficient version ==
		+	The “identity transform” used in the above versions is very easy for the humans to write, and pretty easy to understand. But it is potentially quite in efficient, because for '''every''' node the processor has to go around applying templates and building little result tree fragments, even for those nodes for which there never is anything inside it, in which case just copying the node to the result tree is (in theory) faster.
		+
		+	This version copies those nodes that can be copied, and applies templates only to those nodes that need the extra overhead. Here are just the templates for the identity transform itself (not the rest of the stylesheet).
		+
		+	<pre><nowiki> <xsl:template match="comment()\|processing-instruction()\|text()">
		+	<xsl:copy/>
		+	</xsl:template>
		+	<xsl:template match="*">
		+	<xsl:copy>
		+	<xsl:copy-of select="@*"/>
		+	<xsl:apply-templates select="comment()\|processing-instruction()\|text()\|*"/>
		+	</xsl:copy>
		+	</xsl:template>
	</nowiki></pre>		</nowiki></pre>

@@ Line 7: / Line 7: @@
    <nowiki><xsl:import href="Copy-All.xsl"/></nowiki>
 at the beginning of your XSLT.  (See the [[:Category:P4toP5|P4toP5]] stylesheets which do this as an example.)
 == Use with "PipedStylesheets.bash" and "P4 enroute to P5.bash" ==

@@ Line 43: / Line 43: @@
    <!-- XSLT Template to copy anything, priority="-1" -->
-   <xsl:template match="@*|node()|text()|comment()|processing-instruction()" priority="-1">
+   <xsl:template match="@*|node()" priority="-1">
      <xsl:copy>
-       <xsl:apply-templates select="@*|node()|text()|comment()|processing-instruction()"/>
+       <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
    </xsl:template>

@@ Line 20: / Line 20: @@
    <!-- XSLT Template to copy anything, priority="-1" -->
-   <xsl:template match="@*|node()|text()|comment()|processing-instruction()" priority="-1">
+   <xsl:template match="@*|node()" priority="-1">
      <xsl:copy>
-       <xsl:apply-templates select="@*|node()|text()|comment()|processing-instruction()"/>
+       <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
    </xsl:template>

@@ Line 15: / Line 15: @@
 == Stylesheet ==
-<pre><nowiki>
+<pre><nowiki><?xml version="1.0"?>
 <xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

@@ Line 36: / Line 36: @@
 </nowiki></pre>
-== Copy-All-P5.xsl ==
+== P5 namespace version ==
 If you are processing a TEI P5 document, whose elements will therefore be in the TEI namespace, and if you have an XSLT 2.0 processor, the following variant of the stylesheet makes your life easier by defining the <tt>xpath-default-namespace</tt> attribute on the stylesheet so that you can omit the <tt>tei:</tt> prefix in your XPath expressions:
 <pre><nowiki>