Re: HTML within an element

This isn't an XSL question 


External DTD declaration:
<!ELEMENT SubSectionText (#PCDATA)>

so SubSectionText can only have text (not elements)


which means that your input

<SectionText>Conduct basic and applied research to
support human 
exploration of <em>space</em>

is not valid.  However XSL does not require valid input, mearly well
formed, so you are OK so long as you use a non-validating parser.



<xsl:template match="SectionText">
<xsl:if test="string-length(text()) >
0"><p><xsl:copy-of select="text()" /></p></xsl:if>
</xsl:template>


That is legal but not what you want to do, it just selects the text
nodes which are children of SectionText


<SectionText>Conduct basic and applied research to
support human 
exploration of <em>space</em> and to take advantage of
the <strong>space environment</strong> as a 
laboratory for <a href="test.htm">scientific</a>,
technological, and commercial 
research.</SectionText>

there are five text node children of SectionText so the p you generate
is the concatenation of those, namely:


Conduct basic and applied research to
support human 
exploration of  and to take advantage of
the <strong>space environment as a 
laboratory for ,
technological, and commercial 
research.

Probably you want

<xsl:template match="SectionText">
<xsl:if test="string(.)">
<p><xsl:copy-of select="."/></p>
</xsl:if>
</xsl:template>

David


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