Re: XSL Dominos
On Fri, 2010-05-28 at 15:09 +0100, Nick Leaton wrote: > On the apply templates versus call, I've never been able to get my > head round the apply-templates bit, particular because of the need to > use a mode. I personally read apply-templates as, "something happens > here, but I don't know what" !! When the XSLT processor sees apply-templates, conceptually, this is what happens: (1) it makes a list of all the child nodes (elements & text) of the current element; you can override this using the select= attribute to apply-templates. (2) for each child node, xsl:apply-templates looks for the best template that matches that node, and uses it. You can restrict the search of templates to ones that have a particular "mode" attribute value. If none of the templates you have written match a particular node, a built-in default template is used. (3) the results of those templates are joined together and replace the "xsl:apply-templates" instruction in the current template. This is the single most important thing to understand about XSLT. Or, at least, I think it is :) Note, there are some additional complexities e.g. to do with importing stylesheets and to do with priority and precedence, so this isn't a complete picture, but it is enough for understanding what happnens most of time. Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org www.advogato.org
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