Re: [xsl] Is there an OR for XSL IF?

[Murray McDonald <murray.mcdonald@xxxxxxxxxxxxxxxxxxxxxx>]

Michael,

Perhaps I could offer a thought on your question of why so many readers 
of the spec have trouble finding "and" and "or" in the documentation.

I would think most people approaching XSLT with a knowledge of "other 
programming languages" are going to consider "and" and "or" to be 
operators.  The third paragraph of the XSLT 2.0 spec abstract is as follows:

XSLT 2.0 is designed to be used in conjunction with XPath 2.0, which is 
defined in [XPath 2.0] <#xpath20>. XSLT shares the same data model as 
XPath 2.0, which is defined in [Data Model] <#xpath-datamodel>, and it 
uses the library of functions and operators defined in [Functions and 
Operators] <#xpath-functions>.

If one follows the link to the Functions and Operators document one will 
not find any mention of "and" or "or" as operators - and come away with 
the mistaken impression that these operator don't exist.

Take care,

Murray



On 1/4/2012 3:13 AM, Michael Kay wrote:
> On 04/01/2012 02:56, GWmbox wrote:
> > I have had a read through the W3C stuff for IF elements but I cannot 
> > find anything conclusive about an OR for the IF elements.
> >
> > Is there in fact an option for OR, is it the | to do this. Can I have 
> > something like
> See section 3.6 of the XPath 2.0 specification, "logical expressions"
>
> http://www.w3.org/TR/xpath20/#id-logical-expressions
>
> As an editor of the spec, I would love to understand why so many 
> readers of the spec seem to have difficulty finding this section, or 
> discovering that the XPath "and" and "or" operators are written "and" 
> and "or". If you could explain what your strategy was for finding the 
> information, and how you came to miss it, I would be most interested 
> to see what we can learn.
>
> Michael Kay
> Saxonica