Hi Don,
I haven't looked at your grouping approach in detail. The spec [1]
contains a similar example that employs group-adjacent instead of
group-starting-with/group-ending-with. Maybe you can adapt this approach
to your situation?
Gerrit
[1] https://www.w3.org/TR/xslt-30/#d7e42443
On 05.02.2022 16:20, Don Smith dsmith_lockesmith(_at_)yahoo(_dot_)com wrote:
The sample XML file has two paragraphs ("p" element) that contain mixed
content. However, some of the child elements of "p" are block level
elements. I need to separate these block level elements out from the
mixed content and place each component of the paragraph content in their
own consecutive blocks, as appropriate. So, in the first example input
paragraph (see attached for complete input file):
<p>In Boolean algebra, the algebraic normal form <i>(ANF)</i> is a way
of writing logical formulas in
one of three subforms: <list list-type="simple">
<list-item>
<p>The entire formula is purely true or false</p>
</list-item>
<list-item>
<p>One or more variables are ANDed together into a term</p>
</list-item>
<list-item>
<p>The previous subform with a purely true term</p>
</list-item>
</list>Formulas written in ANF are also known as Zhegalkin
polynomials and Positive Polarity (or
Parity) Reed–Muller expressions (PPRM).</p>
Should on output be:
<p>In Boolean algebra, the algebraic normal form <i>(ANF)</i> is a way
of writing logical formulas in
one of three subforms:<p>
<list list-type="simple">
<list-item>
<p>The entire formula is purely true or false</p>
</list-item>
<list-item>
<p>One or more variables are ANDed together into a term</p>
</list-item>
<list-item>
<p>The previous subform with a purely true term</p>
</list-item>
</list>
<p>Formulas written in ANF are also known as Zhegalkin polynomials and
Positive Polarity (or
Parity) Reed–Muller expressions (PPRM).</p>
You'll note in the second example input paragraph a more complex
scenario where there are two nested block elements. I think a recursive
solution is needed for that but so far I've had no success in achieving it.
The XSLT I've written so far (attached) accomplishes the first needed
part by separating the block elements from the mixed content that comes
*before* the block using for-each-group and group-starting-with. But
attempts to achieve the same result on mixed content that *follows* the
block using for-each-group and group-ending-with have not succeeded. I
think it's close but am just missing a crucial detail. And, as noted
already, the solution does need to account for the possibility of nested
blocks.
Embedded XSLT:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns:mml="http://www.w3.org/1998/Math/MathML";
exclude-result-prefixes="xs"
version="2.0">
<xsl:template match="p">
<xsl:for-each-group select="node()" group-starting-with="list |
disp-formula | mml:math">
<xsl:variable name="group1" as="element()">
<GROUP1>
<xsl:apply-templates
select="current-group()"></xsl:apply-templates>
</GROUP1>
</xsl:variable>
<xsl:choose>
<xsl:when test="$group1/list |
$group1/disp-formula |
$group1/mml:math">
<xsl:call-template name="end_group">
<xsl:with-param name="input" select="$group1"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="$group1"/>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each-group>
</xsl:template>
<xsl:template name="end_group">
<xsl:param name="input" >default</xsl:param>
<xsl:variable name="group2" as="element()" >
<xsl:for-each-group select="$input" group-ending-with="list
| disp-formula | mml:math">
<PGROUP2>
<xsl:apply-templates
select="current-group()"></xsl:apply-templates>
</PGROUP2>
</xsl:for-each-group>
</xsl:variable>
<xsl:copy-of select="$group2"/>
</xsl:template>
<xsl:template match="/">
<output>
<xsl:apply-templates/>
</output>
</xsl:template>
<xsl:template match="*">
<xsl:variable name="name" as="xs:string" select="name()"/>
<xsl:element name="{$name}">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>
Thanks in advance,
Don
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