Can normalize-space() be used with input controls?

Hi Folks,

I have found that normalize-space() works fine with xforms:output, e.g.

<xforms:output value="normalize-space(...)"

But I get an error when I try to use it with xforms:input or xforms:textarea, e.g.

<xforms:textarea ref="normalize-space(..)"

Here is the error message I get:

org.orbeon.saxon.value.StringValue cannot be cast to org.orbeon.saxon.om.NodeInfo


My model contains data that I want to display for editing. I want to normalize the space in the data before displaying it to the user. Should I be using some other XPath function to do this?

/Roger

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Hi Roger,

The ref attribute requires single node binding, but
normalize-space() will return a string, not a node.

I'm sure there are better ways, but you could try to
setvalue of the node when the form is submitted --
passing the original value through normalize-space()
once before it is submitted.

Cheers,
Hank



On Dec 1, 2008, at 8:56 AM, Costello, Roger L. wrote:
Hank Ratzesberger
NEES@UCSB
Institute for Crustal Studies,
University of California, Santa Barbara
805-893-8042







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> My model contains data that I want to display for editing. I want to  
> normalize the space in the data before displaying it to the user.  
> Should I be using some other XPath function to do this?

You could use a calculation:

   <xforms:bind nodeset="my/node" calculate="normalize-space"/>

   <xforms:textarea ref="my/node">...

Wit this however, the calculation will occur everytime the value in  
the text area is committed to the instance. So maybe you want to do  
this just once upon initialization, e.g.:

   <xforms:setvalue ev:event="xforms-model-construct-done" ref="my/
node" value="normalize-space()"/>

-Erik

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