Re: xpath string index function

Proposal:

Add

SUBSTR_BEFORE (keyword for fn:substring-before)
SUBSTR_AFTER  (keyword for fn:substring-after)

but keep using the XSD F&O operator to back the SPARQL keywords (i.e. 
1-based strings).

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It seems to be this, or redo all the string operations as 0-based, and 
have URI-calls to fn: string operations for the 1-based style.

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What about adding fn:replace as well?
REPLACE
http://www.w3.org/TR/xpath-functions/#func-replace

(I haven't checked the details of the replace language and rules to see 
if its sufficiently close to all know programming languages to be easy 
to implement via library calls - any one know?)


	Andy

Received on Thursday, 29 September 2011 11:11:58 UTC