I forgot to mention, I need an XPath 2.0 solution.
/Roger
-----Original Message-----
From: Martin Honnen martin(_dot_)honnen(_at_)gmx(_dot_)de
[mailto:xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com]
Sent: Tuesday, July 26, 2016 7:55 AM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] XPath expression which checks that a string is between 1 and
10 characters in length?
On 26.07.2016 13:51, Costello, Roger L. costello(_at_)mitre(_dot_)org wrote:
I need an XPath expression which returns true if the string in <A> is between
1 and 10 characters in length, and false otherwise.
For example, the XPath expression should return true on this XML:
<A>hi</A>
Here's an inefficient XPath expression:
(string-length(.) gt 0) and (string-length(.) le 10)
It's inefficient because it computes the string length twice.
Is there a more efficient XPath expression to solve this problem?
Well, in XPath 3 you can use
let $l := string-length()
return ($l gt 0 and $l le 10)
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