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Re: Are xsl:accumulator-rules exclusive ?

Subject: Re: Are xsl:accumulator-rules exclusive ?
From: "Michael Kay mike@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 21 Sep 2020 21:55:11 -0000
Re:  Are xsl:accumulator-rules exclusive ?
B'18.2.3:  If there is more than one matching rule, the last in document order
is used. If there is no matching rule, the value of the accumulator variable
does not change.

Michael Kay

> On 21 Sep 2020, at 22:52, Christophe Marchand cmarchand@xxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> Hello,
> I didn't manage to find the response in the specs, so...
> Are xsl:accumulator-rule mutually exclusives, and do default priorities for
template rules apply in accumulator-rule ? Is the same node able to fire many
xsl:accumulator-rule in the same mode, if evaluated only once ?
> For example, if I have this accumulator :
>   <xsl:accumulator name="weight" as="xs:integer" initial-value="0">
>     <xsl:accumulator-rule match="box[xs:integer(@width) gt
100][xs:integer(@height) gt 100]" select="$value + 100"/>
>     <xsl:accumulator-rule match="box[xs:integer(@width) gt
50][xs:integer(@height) gt 50]" select="$value + 50"/>
>     <xsl:accumulator-rule match="box" select="$value + 1"/>
>   </xsl:accumulator>
>   <xsl:mode use-accumulators="#all" on-no-match="shallow-copy"/>
>   <xsl:template name="xsl:initial-template">
>     <xsl:variable name="content" as="element(box)*">
>       <box width="150" height="150"/>
>     </xsl:variable>
>     <xsl:apply-templates select="$content"/>
>   </xsl:template>
> I'd expect to get <box width="150" height="150">100</box> but I get <box
width="150" height="150">1</box>.
> Is it normal ?
> Should I put a xsl:choose in the rule match="box" and evaluate all
possibilities inside the choose ?
> Best regards,
> Christophe

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