Thread: [Xsltforms-support] xf:bind elements with no @nodeset attribute fails with a cryptic message, from

Brought to you by: alain-couthures

xsltforms-support

[Xsltforms-support] xf:bind elements with no @nodeset attribute fails with a cryptic message, from rev361

From: Kostis A. <ank...@gm...> - 2010-03-29 12:21:29

The generation of XPATH for <f:bind> elements with no @nodeset attribute
(for instance, when <xf:bind> is used only for its @calculate or MIP
attributes)
fails with a cryptic message, saying: "4.*[1]".

The problem appeared on rev361 ("XPath parsing loop with node-set()")
which i tihnk is caused by an erroneous xsl generated-template at
trunk/buid/xsltforms.xsl:189:
    <xsl:if test="//xforms:bind[not(@nodeset)]"><xexpr>4.*[1]</xexpr></xsl:if>

- Reproduced on all browsers (ie, FF, chrome)

Regards,
  Kostis Anagnostopoulos

Re: [Xsltforms-support] xf:bind elements with no @nodeset attribute fails with a cryptic message, from rev361

From: Kostis A. <ank...@gm...> - 2010-03-29 14:29:03

Attachments: emptybind.xml

Attaching here forgotten test-case xform reproducing the error:


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xsltforms/xsltforms.xsl" encoding="UTF-8"
type="text/xsl"?>
<html
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:xf="http://www.w3.org/2002/xforms"
>
  <head>
    <title>Bind with no nodeset</title>

    <xf:model id="model-main" schema="xsd1.xml">

      <xf:instance id="inst-main" >
        <data:root/>
      </xf:instance>

      <xf:bind id="bind-someBind" />

    </xf:model>

  </head>

  <body>
      It fails on start up with a cryptic XPAth-invalid message.
  </body>
</html>


On Mon, Mar 29, 2010 at 2:19 PM, Kostis Anagnostopoulos
<ank...@gm...> wrote:
> The generation of XPATH for <f:bind> elements with no @nodeset attribute
> (for instance, when <xf:bind> is used only for its @calculate or MIP
> attributes)
> fails with a cryptic message, saying: "4.*[1]".
>
> The problem appeared on rev361 ("XPath parsing loop with node-set()")
> which i tihnk is caused by an erroneous xsl generated-template at
> trunk/buid/xsltforms.xsl:189:
>    <xsl:if test="//xforms:bind[not(@nodeset)]"><xexpr>4.*[1]</xexpr></xsl:if>
>
> - Reproduced on all browsers (ie, FF, chrome)
>
> Regards,
>  Kostis Anagnostopoulos
>

Re: [Xsltforms-support] xf:bind elements with no @nodeset attribute fails with a cryptic message, from rev361

From: COUTHURES A. <ala...@ag...> - 2010-03-29 16:49:09

Kostis,
> The generation of XPATH for <f:bind> elements with no @nodeset attribute
> (for instance, when <xf:bind> is used only for its @calculate or MIP
> attributes)
> fails with a cryptic message, saying: "4.*[1]".
>   
Because there is no sequence in XPath 1.0 and because node-set() was not 
supported in FF2 either, XSLTForms uses strings with a length.value 
structure. This is an XPath expression of 4 characters: "*[1]" (the 
first child element) and it is used as default value for xf:bind without 
@nodeset.
> The problem appeared on rev361 ("XPath parsing loop with node-set()")
> which i tihnk is caused by an erroneous xsl generated-template at
> trunk/buid/xsltforms.xsl:189:
>     <xsl:if test="//xforms:bind[not(@nodeset)]"><xexpr>4.*[1]</xexpr></xsl:if>
>   
Yes, xalan doesn't support heavy recursion so I have changed the main 
recursive mechanism to a loop. But I forgot to change "4.*[1]" into 
"*[1]" too !

This will be committed soon!

Thanks!

-Alain