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From looking at your XSLT and expected results, it looks like that for each a element in your XML, you want to output infomation on the following c elements present, if any occur before the next a element present.
For this, you could use an xsl:key to look up c elements for a given a element
<xsl:key name="lookup" match="c" use="generate-id(preceding-sibling::a[1])" />i.e. Group together all c elements by the first preceding a element.
Then, you can firstly select a elements for which there are such c elements like so:
<xsl:apply-templates select="a[key('lookup', generate-id())]" />Then, within this template, you can select the cc elements for output, like so:
<xsl:apply-templates select="key('lookup', generate-id())" />So, given the following XSLT
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><xsl:output method="text" indent="yes"/>
<xsl:key name="lookup" match="c" use="generate-id(preceding-sibling::a[1])" />
<xsl:template match="/root">
<xsl:apply-templates select="a[key('lookup', generate-id())]" />
</xsl:template>
<xsl:template match="a">
<xsl:value-of select="concat(@id, ': ', ' ')" />
<xsl:apply-templates select="key('lookup', generate-id())" />
</xsl:template>
<xsl:template match="c">
<xsl:apply-templates select="@*" />
<xsl:value-of select="' '" />
</xsl:template>
<xsl:template match="c/@*">
<xsl:value-of select="concat(local-name(), ':', ., ': ')" />
</xsl:template>
</xsl:stylesheet>
When applied to the following XML
<root><a id="a1" name="a1"/>
<b text="b1"/>
<d test="test0" location="L0" text="c0"/>
<a id="a2" name="a2"/>
<b text="b2"/>
<c test="test1" location="L1" text="c1"/>
<c test="test2" location="L2" text="c2"/>
<a id="a3" name="a3"/>
<b text="b3"/>
<c test="test3" location="L3" text="c3"/>
<c test="test4" location="L4" text="c4"/>
<c test="test5" location="L5" text="c5"/>
</root>
The following is output
a2:test:test1:
location:L1:
text:c1:
test:test2:
location:L2:
text:c2:
a3:
test:test3:
location:L3:
text:c3:
test:test4:
location:L4:
text:c4:
test:test5:
location:L5:
text:c5:
Note that I am output the attributes on the c element in the order they appear in the XML document.
https://wap.sciencenet.cn/blog-615874-565260.html
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