- From: Andy Seaborne <andy.seaborne@epimorphics.com>
- Date: Wed, 03 Nov 2010 10:23:47 +0000
- To: Lee Feigenbaum <lee@thefigtrees.net>
- CC: SPARQL Working Group <public-rdf-dawg@w3.org>
Fine tuning. fn:concat http://www.w3.org/TR/xpath-functions/#func-concat [[ The fn:concat function is specified to allow an two or more arguments that are concatenated together. This is the only function specified in this document that allows a variable number of arguments. This capability is retained for compatibility with [XML Path Language (XPath) Version 1.0]. ]] As Steve pointed out, fn:concat casts to string (and empty sequences go to empty string) but also it's the only function in F&O that takes a variable number of arguments; others take sequences e.g. fn:string-join. If we wish to be more conservative, we could provide own binary string concatenation operation (tighter signature, can devolves to fn:concat for the functionality). Andy
Received on Wednesday, 3 November 2010 10:24:24 UTC