RE: casting sequences

for $t in tokenize() return xs:dayTimeDuration($t)

Tedious - some of us tried very hard to get a "simple mapping operator" that
would do this without needing a variable - but the attempt floundered.

Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: Henry S. Thompson [mailto:ht@xxxxxxxxxxxx] 
> Sent: 07 January 2009 15:46
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  casting sequences
> 
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> I have input like this:
> 
>   . . .
>   <topics days="P1D P4D">
>   . . .
> 
> and in order to get a sequence of dayTimeDurations, which is 
> what I want, I've had to write
> 
>   <xsl:variable name="days" select="tokenize(//topics/@days,' ')"/>
>   <xsl:variable name="ds"
>         
> select="(xs:dayTimeDuration($days[1]),xs:dayTimeDuration($days[2]))"/>
> 
> This is not only tedious, it only works if I know in advance 
> how many days there will be, which in principle I don't.  
> What's the right way to do this?  I spent rather a long time 
> searching the documentation without success. . .
> 
> ht
> - -- 
>        Henry S. Thompson, School of Informatics, University 
> of Edinburgh
>                          Half-time member of W3C Team
>       10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 
> 131 650-4440
>                 Fax: (44) 131 651-1426, e-mail: ht@xxxxxxxxxxxx
>                        URL: http://www.ltg.ed.ac.uk/~ht/ 
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