Re: Whose error is it anyway

line 67
<xsl:element
name="{map:get($actions,$action)}">{normalize-space(substring-after(.,$action))}</xsl:element>

where the @name did not evaluate to a valid XML name.

On Fri, Aug 14, 2020 at 8:20 AM Michael Kay <mike-JkSD5nQpfvpWk0Htik3J/[email protected]> wrote:

> What's on line 67? Is it the declaration of global variable $actions?
> Otherwise, I can't see why evaluating this pattern should result in a call
> on xsl:element.
>
> Michael Kay
> Saxonica
>
> On 14 Aug 2020, at 13:04, Ihe Onwuka <[email protected]> wrote:
>
> Happened again.
>
> My code. <xsl:template
> match="*[map:contains($actions,tokenize(.,'\W')[1][matches(.,'\i\c*')])]">
>
> Clearly it doesn't like the zero length string.
>
> Warning at char 1 in xsl:template/@match on line 63 column 92 of *****.xsl:
>   XPTY0004  An error occurred matching pattern
>   {element()[Q{
> http://www.w3.org/2005/xpath-functions/map}contains($actions,
>   exactly-one((first(tokenize(convertUntyped(data(.)), "\W",
> "")))[matches(., "\i\c*", "")]))]}:
> Error at char 9 in expression in xsl:element/@name on line 67 column 55 of
> ******.xsl:
>   XTDE0820  Supplied element name is a zero-length string
>
> On Thu, Aug 13, 2020 at 6:40 PM Ihe Onwuka <[email protected]> wrote:
>
>> I tried but cannot reconstruct a snippet that reproduces. The hint as to
>> what happened in my use case was the best I could offer.
>>
>> On Thu, Aug 13, 2020 at 6:15 PM Michael Kay <mike-JkSD5nQpfvpWk0Htik3J/[email protected]> wrote:
>>
>>> If you post a repro that we can run, that's useful as we can examine the
>>> error messages, see what's causing them, and test any improvements. With
>>> only snippets like this, there's not really any effective action we can
>>> take.
>>>
>>> Michael Kay
>>> Saxonica
>>>
>>> On 13 Aug 2020, at 18:53, Ihe Onwuka <[email protected]> wrote:
>>>
>>> I can tell you that the error went away when I eliminated the
>>> possibility of the context element being empty. I struggle to correlate
>>> that back to the error message that was displayed.
>>>
>>> On Thu, Aug 13, 2020 at 10:16 AM Graydon <[email protected]> wrote:
>>>
>>>> Both?  The hints about what the optimizer thinks is happening are
>>>> useful right up until I can't tell where the error is.
>>>>
>>>> On August 13, 2020 1:40:48 PM UTC, Michael Kay <mike-JkSD5nQpfvpWk0Htik3J/[email protected]>
>>>> wrote:
>>>> >Yes, we should probably retain the original pattern as a string rather
>>>> >than trying to reconstitute it from the compiled form.
>>>> >
>>>> >Michael Kay
>>>> >Saxonica
>>>> >
>>>> >> On 13 Aug 2020, at 13:52, Ihe Onwuka <[email protected]> wrote:
>>>> >>
>>>> >> This is not my code.
>>>> >>
>>>> >> Warning at char 1 in xsl:template/@match on line 62 column 72 of
>>>> >******.xsl:
>>>> >>   XPTY0004  An error occurred matching pattern
>>>> >>
>>>> >{element()[Q{
>>>> http://www.w3.org/2005/xpath-functions/map}contains($actions
>>>> ><http://www.w3.org/2005/xpath-functions/map%7Dcontains($actions>,
>>>> >>   exactly-one(first(tokenize(convertUntyped(data(.)), "\s", ""))))]}:
>>>> >>
>>>> >> My code was
>>>> >>
>>>> >>
>>>> >>    <xsl:template
>>>> >match="*[map:contains($actions,tokenize(.,'\s')[1])]">
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