[xquery-talk] Whitespace problem in CSV-like output

Yves Forkl Y.Forkl at srz.de
Fri Oct 17 18:19:38 PDT 2008

I am very grateful to both of you for your valuable suggestions.

It is a bit disappointing to see that XQuery does not offer a simple, 
general method to create CSV-type files, at least not in my case.

I have picked up the idea to use functions, but rather than 
encapsulating the query, I (for now) prefer to put the string 
manipulation operations into functions so that I can reuse them and use 
them for parametrization.

So now I have:

xquery version "1.0" encoding "ISO-8859-1";
declare namespace saxon="http://saxon.sf.net/";
declare namespace my="http://xmlns.srz.de/yforkl/xquery/functions";

declare option saxon:output "method=text";

declare function my:join-fields-into-record
   ( $fields as xs:string*,
     $delimiter as xs:string ) as xs:string {
       concat(string-join($fields, $delimiter), "
  } ;
declare function my:join-records-into-lines
   ( $records as xs:string* ) as xs:string {
       string-join($records, "")
  } ;

   let $entries := /list/entry

   for $property1 in distinct-values($entries/property1),
       $property2 in distinct-values(
         $entries[property1 = $property1]/property2)
     let $selected_entries := $entries[property1 = $property1 and
                                       property2 = $property2]
     order by $property1, $property2
                for $quantity in $selected_entries/quantity
                     return xs:decimal(translate($quantity,

NB: While the names of the functions seem to suggest that the line feed 
should rather be appended in my:join-records-into-lines than in 
my:join-fields-into-record, I don't see any easy way to do this.


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