[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Scalar -> node-set conversion (was How to distinguish b/
Mike Kay wrote: >> Dmitre wrote: >> >> > This is a good idea and it actually works in MSXML 3: >> > >> > count(node-set(nodeSet) | node-set(nodeSet)) returns 1. >> > count(node-set(Scalar) | node-set(Scalar)) returns 2. >> > >> > Unfortunately, Saxon always returns 1. > >Actually, I'm getting the answer 2 when I run this in Saxon. Though I don't >think this is a particularly good thing: in principle, running the same >function twice with the same argument should produce the same result; >otherwise optimizations are likely to go wrong. >> > >> > Also, I've heard that the standard node-set() function in >> XSLT 1.1 will throw error when passed a scalar argument. > >It is currently proposed that RTF->nodeset conversion should be >implicit in >XSLT 1.1, but there has been no proposal to allow string->nodeset >conversion. > >Mike Kay >> I got these results running Saxon 5.4. Anyway, it appears that there isn't a reliable way of finding whether a parameter is a node-set or a scalar -- it's a pity, because something as simple as a function (defined over a nodeset like count()) returning NaN for a scalar would do the job. As of now one has to depend on the error number -- even on the exact error message text from a particular vendor of an XSLT processor. Dimitre. __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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