Subject: Re: [xsl] getting all nodes from a certain level in the xml hierarchy From: "Martin Lormes" <martin.lormes@xxxxxxx> Date: Fri, 27 Sep 2002 11:37:54 +0200 |
> my problem is the following: > my XML document maps the structure of a folder tree (just like the unix file > hierarchy) but without files, e.g.: > > <Folder NAME="/"> > <Folder NAME="a"/> > <Folder NAME="b"> > <Folder NAME="ba"/> > <Folder NAME="bb"/> > </Folder> > ... > <Folder NAME="z"> > <Folder NAME="za"> > ... > <Folder NAME="very deep folder"/> > ... > </Folder> > </Folder > </Folder> > > The real folder NAMEs are like real folder names, and have no specific > length or content. > The depth of the deepest node is unknown. > > I need to access all nodes that have the same depth. > So first i need root, then all direct childs of root, then all nodes that > are two levels under root, because i want tu put them in a table like: > > level | 0 | 1 | 2 ... x > ------+---+-----+------ --------------- > | / | a | ba very deep folder > | | b | bb > ... > | | z | za > > first I started to try <xsl:for-each select="//Folder"> and then > <xsl:for-each select="//Folder/Folder"> but because I do not know the depth > of the tree, this won't work.. Another reason, why this wouldn't work: "//Folder" selects all folders at any tree level. "//Folder/Folder selects alls folders which have a parent folder. > Can anybody help me, what is the direction i should go? > I don't think there is an easy way to use XPath for adressing nodes on the > same level? In General "/*/*/*/*" selects all nodes at the fourth level, for instance. However I can't yet think of a single transformation that could possibly yield such a list. Do you really want text-output? Or do you want an HTML table? If it helps to have an intermediate document containing a simple list of Folders with their level in an attribute value, you can use: <xsl:for-each select="//Folder"> <Folder NAME="{@NAME}" LEVEL="{count(ancestor::*)}"/> </xsl:for-each> It should be rather easy to build your table from this intermediate structure. Martin Lormes XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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