Re: [xsl] xslt 2, forward compatibility mode.

[Colin Paul Adams <colin@xxxxxxxxxxxxxxxxxx>]

>>>>> "Michael" == Michael Kay <mhk@xxxxxxxxx> writes:

    Michael> XSLT 2.0 allows the [xsl:]version attribute on any
    Michael> element. XSLT 1.0 allows it only on the xsl:stylesheet
    Michael> element or a literal result element.

Which is therefore not backwards compatible, and so breaks the
fallback future-proofing (as in the example)

    >> That does not work.
    >> 
    >> % cat fallback.xsl <?xml version="1.0" encoding="utf-8"?>
    >> <xsl:stylesheet version="1.0"
    >> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
    >> 
    >> <xsl:output method="xml" indent="yes"/>
    >> 
    >> <xsl:template match="/" version="3.0"> <result>
    >> <xsl:perform-magic select="magic-dust"> <xsl:fallback>Sorry, we
    >> don't do magic</xsl:fallback> </xsl:perform-magic> </result>
    >> </xsl:template>
    >> 
    >> </xsl:stylesheet>
    >> 
    >> % saxon dummy.xml fallback.xsl Error at xsl:template on line 7
    >> of file:/opus/home/mike/xml/test/fallback.xsl: Attribute
    >> version is not allowed on this element Error at
    >> xsl:perform-magic on line 9 of
    >> file:/opus/home/mike/xml/test/fallback.xsl: Unknown XSLT
    >> element: perform-magic Transformation failed: Failed to compile
    >> stylesheet. 2 errors detected.
-- 
Colin Paul Adams
Preston Lancashire

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