Re: [xsl] problem with xsl:import and namespaces

[Jostein Austvik Jacobsen <josteinaj@xxxxxxxxx>]

Ah, ok. I guess I'll have to manually make sure that there aren't any
conflicts in the import tree then.

Thanks!
Jostein

2010/8/17 G. Ken Holman <gkholman@xxxxxxxxxxxxxxxxxxxx>:
> At 2010-08-17 14:19 +0200, Jostein Austvik Jacobsen wrote:
>>
>> I've got five stylesheets, where test.xsl imports A.xsl and B.xsl,
>> A.xsl imports C1.xsl, and B.xsl imports C2.xsl. C1.xsl and C2.xsl is
>> in the same namespace, and defining the same function (i.e. C2.xsl is
>> a newer version of C1.xsl). Now, I wouldn't think that this would
>> cause a problem, as C1.xsl and C2.xsl is not imported directly into
>> the same stylesheet. test.xsl only makes use of C1.xsl and C2.xsl
>> indirectly via A.xsl and B.xsl, not knowing that there are multiple
>> versions of C (or that A.xsl and B.xsl uses C for that matter.)
>>
>> However, when importing B.xsl after A.xsl in test.xsl, then the
>> function in C1.xsl is overridden by the one in C2.xsl, even when
>> called from A.xsl...
>
> Yes, by definition. B There is only *one* collection of top-level names
when
> all of the importation and including is done.
>
>> I guess there's something I've missed about xsl:import and namespaces
>
> All top-level names can be qualified with a namespace URI.
>
> At the time of executing an instruction, there is a single set of names of
> top-level constructs. B Which top-level construct can be seen is based on
the
> instruction ... for example, <xsl:apply-templates/> will see one of every
> top-level construct name considering every tree in the import chain. B When
> using <xsl:apply-imports/> the instruction will see one of every top-level
> construct name considering every tree in only imported stylesheets and
their
> imports.
>
> You are using function calls and function calls are resolved across the
> entire importation tree, not just a subset. B So, the function call with
the
> highest importance in the entire tree is going to be the one that is always
> called.
>
> Latter imports in a stylesheet confer higher importance on imported
> stylesheet constructs than earlier imports. B In the spec this concept of
> importance is referred to officially as the "import precedence".
>
> I hope this helps.
>
> . . . . . . . . . . B Ken
>
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