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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: how to select elements based on their children's n
 Robert P. J. Day wrote:if i want to select all elements that have at least one, say, "book" child element, it seems i can do it this way: //*[name(child::*) = "book"] long way //*[name(*) = "book"] shorter way 1) is this the easiest way to do it? Yup. The name() function takes a node set as its argument, and returns the name of the first node in the node set. All three of Robert's name tests will fall into this category. //*[book] is the way to do it, since the XPath expression "book" (short for child::book) returns true if there are any book child elements (not just if the first element child is a book) //*[book] is short for /descendant-or-self::node()/child::*[child::book] (Traversing from the root, get all nodes at any depth, then get any element child that has a book element child.) name(node())='book' might be seeming to fail where name(*)='book' seems to work due to whitespace in the input. If the first element child is a <book> but it is preceded by a text node (even one that just contains a line feed), the test name(node())='book' on its parent will test false whereas name(*)='book' tests true. I hope this clarifies! Wendell ====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ====================================================================== XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list 
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