Subject: [xsl] Interpretation of preceding axis (preceding-sibling in particular) From: John-Paul Sicotte <jps@xxxxxxxxxxxxxxxxxxx> Date: Fri, 03 Aug 2001 10:59:31 -0600 |
Hi, I have read several of the threads on the preceding axes and looked at the FAQ but I am still not 100% sure what should be returned. I have built a stylesheet and an input file to illustrate the issue. It tests the actual node set returned as well as the position of those nodes. xslt file ========== <?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet version = "1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match = "/document" > <xsl:apply-templates select="element[1]" mode = "siblings"/> <xsl:apply-templates select="element[5]" mode = "siblings"/> <xsl:apply-templates select="element[10]" mode = "siblings"/> </xsl:template> <xsl:template match = "element" mode = "siblings"> <xsl:call-template name = "siblings"/> </xsl:template> <xsl:template match = "element" mode = "position"><xsl:value-of select = "position()"/></xsl:template> <xsl:template name = "siblings"> Context Node: <xsl:value-of select = "."/> Preceeding Siblings: <xsl:apply-templates select="preceding-sibling::element"/> Preceeding Position: <xsl:apply-templates select="preceding-sibling::element" mode = "position"/> Following Siblings: <xsl:apply-templates select="following-sibling::element"/> Following Position: <xsl:apply-templates select="following-sibling::element" mode = "position"/> </xsl:template> </xsl:stylesheet> -------------------- xml file <?xml version = "1.0" standalone = "yes" ?> <document> <element pos = "1">1</element> <element pos = "2">2</element> <element pos = "3">3</element> <element pos = "4">4</element> <element pos = "5">5</element> <element pos = "6">6</element> <element pos = "7">7</element> <element pos = "8">8</element> <element pos = "9">9</element> <element pos = "10">0</element> </document> -------------------------------------- I got the following output from XT Context Node: 1 Preceeding Siblings: Preceeding Position: Following Siblings: 234567890 Following Position: 123456789 Context Node: 5 Preceeding Siblings: 1234 Preceeding Position: 1234 Following Siblings: 67890 Following Position: 12345 Context Node: 0 Preceeding Siblings: 123456789 Preceeding Position: 123456789 Following Siblings: Following Position: This position values seem incorrect to me. I would have expected the positions to be reversed (ie 4321 and 987654321). It seems clear to me that the reverse axes are counted from the context node backwards. The immediately previous node should be 1. The actual node ordering appears to be correct. Regardless of the axis the nodes are returned in document order, only the position changes. Is this interpretation correct? John-Paul ---------------------- John-Paul Sicotte Software Composer MessagingDirect mailto:John-Paul.Sicotte@xxxxxxxxxxxxxxxxxxx XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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