Question

I m using Saxon-EE 9.3.0.4 for xsl transformations and found that when <xsl:result-document> is used inside <xsl:attribute> (as well as <xsl:namespace>, <xsl:processing-instruction>) instruction, processor raises XTDE1480 error - Cannot switch to a final result destination while writing a temporary tree

<xsl:attribute name="a">
    <xsl:result-document href="result.xml" > - error here
        test
    </xsl:result-document>
</xsl:attribute>

http://www.w3.org/TR/xslt20/#element-result-document”rel=“nofollow” (Appendix D)允许父母填写<xsl:result-document>。 :

any XSLT element whose content model is sequence constructor
any literal result element

是否在Saxon或限制<xsl:result-document> 具体定义中没有定义的使用?

Update: I believe that this is not a good idea to use <xsl:result-document> inside <xsl:attribute>, but why error happens?

增编

Answer 1

具体来说,你可以读到:

The instructions in the initial template are evaluated in final output state. An instruction is evaluated in the same output state as its calling instruction, except that xsl:variable, xsl:param, xsl:with-param, xsl:attribute, xsl:comment, xsl:processing-instruction, xsl:namespace, xsl:value-of, xsl:function, xsl:key, xsl:sort, and xsl:message always evaluate the instructions in their contained sequence constructor in temporary output state.

The xsl:result-document write in a final tree result, and given the rule above, I understand that it is an error to try writting in a final tree result when inside the following elements

xsl:variable, xsl:param, xsl:with-param, xsl:attribute, xsl:comment, xsl:process-instruction, xsl:namespace, xsl: Value-of, xsl:Function, xsl:key, xsl:sort, and xsl:message

Answer 2

2018年的最新信息:注意到《国际公路货运公约》3.0 具体条款放宽了限制。 <代码>xsl:attribute和xsl:comment等指示不再规定临时输出国。最近的Saxon版本(有9.8)执行修订后的规则。

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