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File: Data.xml
<?xml version="1.0" encoding="utf-8"?>
<data>
<text>124</text>
<text>1 2 4</text>
<text>-16</text>
<text>- 16</text>
<text>125.258</text>
<text>125.</text>
<text>ASDF</text>
<text>A123</text>
<text>true</text>
<text>false()</text>
</data>
File: Transform.xslt
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<TABLE border="1">
<TR>
<td>text</TH>
<td>number</TH>
</TR>
<xsl:for-each select="//text[text() = 'true' or text() = 'false()']">
<TR>
<TD>
<xsl:value-of select="."/>
</TD>
<TD>
<xsl:value-of select="number()"/>
</TD>
</TR>
</xsl:for-each>
</TABLE>
<Paragraph>
<xsl:text>but:</xsl:text>
</Paragraph>
<TABLE border="1">
<TR>
<td>function</TH>
<td>number</TH>
</TR>
<TR>
<TD>true()</TD>
<TD>
<xsl:value-of select="number(true())"/>
</TD>
</TR>
<TR>
<TD>false()</TD>
<TD>
<xsl:value-of select="number(false())"/>
</TD>
</TR>
<TR>
<TD>5>7</TD>
<TD>
<xsl:value-of select="number(5 > 7)"/>
</TD>
</TR>
<TR>
<TD>5<7</TD>
<TD>
<xsl:value-of select="number(5<7)"/>
</TD>
</TR>
</TABLE>
</xsl:template>
</xsl:stylesheet>
Output:
<?xml version="1.0" encoding="UTF-8"?><TABLE border="1"><TR><td>text</TH><td>number</TH></TR><TR><TD>true</TD><TD>NaN</TD></TR><TR><TD>false()</TD><TD>NaN</TD></TR></TABLE><Paragraph>but:</Paragraph><TABLE border="1"><TR><td>function</TH><td>number</TH></TR><TR><TD>true()</TD><TD>1</TD></TR><TR><TD>false()</TD><TD>0</TD></TR><TR><TD>5>7</TD><TD>0</TD></TR><TR><TD>5<7</TD><TD>1</TD></TR></TABLE>
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