intuitively, this seems like something XSLT should be able to do. I don't know how, but my gut feeling is this problem isn't "way out there" like trying to translate from English to Swahili using array keys, or drawing trigonometry graphs using ascii art.

This isn't urgent

this seems like something XSLT should be able to do.

I know that feeling. I may have my head stuck too far up my procedural programming space. That tends to be my biggest blocker with XSLT.

Thanks for any help.

XML File:

<?xml version="1.0" encoding="utf-8" ?>
<siblings>
 <sibling level="1"></sibling>
 <sibling level="1"></sibling>
 <sibling level="2"></sibling>
 <sibling level="2"></sibling>
 <sibling level="3"></sibling>
 <sibling level="2"></sibling>
 <sibling level="1"></sibling>
 <sibling level="1"></sibling>
 <sibling level="2"></sibling>
 <sibling level="1"></sibling>
</siblings>

XSL File:

[1]
<?xml version="1.0" encoding="utf-8" ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="xml" indent="yes" omit-xml-declaration="no" encoding="utf-8"/>
 <xsl:template match="/">
 <siblings>
 <xsl:apply-templates select="siblings/sibling[1]" mode="list-item"/>
 </siblings>
 </xsl:template>
 <xsl:template match="sibling" mode="list-item">
 <xsl:param name="level" select="1"/>
 <xsl:param name="position" select="1"/>
 <xsl:if test="number(@level)=$level">
 <sibling>
 <xsl:for-each select="@*">
 <xsl:attribute name="{name()}">
 <xsl:value-of select="."/>
 </xsl:attribute>
 </xsl:for-each>
 <xsl:apply-templates select="following-sibling::sibling[1]" mode="list-item">
 <xsl:with-param name="level" select="$level+1"/>
 <xsl:with-param name="position" select="$position+1"/>
 </xsl:apply-templates>
 </sibling>
 <xsl:apply-templates select="following-sibling::sibling[1]" mode="list-sibling">
 <xsl:with-param name="level" select="$level"/>
 <xsl:with-param name="position" select="$position+1"/>
 </xsl:apply-templates>
 </xsl:if>
 </xsl:template>
 <xsl:template match="sibling" mode="list-sibling">
 <xsl:param name="level" select="1"/>
 <xsl:param name="position" select="1"/>
 <xsl:choose>
 <xsl:when test="number(@level)&gt;$level">
 <xsl:apply-templates select="following-sibling::sibling[1]" mode="list-sibling">
 <xsl:with-param name="level" select="$level"/>
 <xsl:with-param name="position" select="$position+1"/>
 </xsl:apply-templates>
 </xsl:when>
 <xsl:when test="number(@level)=$level">
 <xsl:apply-templates select="." mode="list-item">
 <xsl:with-param name="level" select="$level"/>
 <xsl:with-param name="position" select="$position"/>
 </xsl:apply-templates>
 </xsl:when>
 <xsl:otherwise><!-- Terminate recursion --></xsl:otherwise>
 </xsl:choose>
 </xsl:template>
</xsl:stylesheet>

Really enjoyed it! Thanks! I hope my solution is adequate and on par with your standards.

Cheers,
Ivan

[edited by: httpwebwitch at 12:15 pm (utc) on June 11, 2008]
[edit reason] added formatting to prevent text formatt - I'll sticky you with explanation [/edit]

My standards? Right now, it's hacking at something until it looks roughly akin to what I want.

I don't think it will be a problem.

I'll post any tweaks or improvements here.

Thanks!

By the way, what a great inaugural post!

Welcome to WebmasterWorld!

XML is a quiet topic compared to others like PHP and Javascript. But still, when someone needs help with XML, XSLT, XPATH, etc., this is the place.

Before diving in too far, stop and actually read the TOS (we do take it seriously, to the letter, and it is enforced - link is in the footer)

Cheers
Ian

I had to mangle it a bit to fit the real world implementation, but the stylesheet works.

Thanks, Ivan!