Hello Everyone,

I have numerous xml documents that have content that refers to US code of
Federal Regulations (CFRs) e.g.

'GENERAL ['21.197]' or 'PERMIT ['21.197 & '21.199]'

Is there a simple string function that extracts integers from a string?

I am trying to use a series of functions to do the same. e.g.

<xsl:for-each-group select="//Title" group-by=".">
        <xsl:if test="contains(., ''')">
                <xsl:variable name="before"
select="substring-after(.,'[')"/>
                <xsl:variable name="after"
select="substring-before($before,']')"/>
                <xsl:variable name="removespace" select="tokenize($after,
'&amp;')"/>
                <xsl:value-of select="$removespace"/>
                p/>
        </xsl:if>
</xsl:for-each-group>

Which produces:

'21.197
'21.197 '21.199

Desired result:

21.197
21.197
21.199

I will eventually group and sort by number.

	<xsl:variable name="numbers" as="xs:string*">
		<xsl:analyze-string select="//Title" regex="\d+\.?\d*">
			<xsl:matching-substring>
				<xsl:sequence select="."/>
			</xsl:matching-substring>
		</xsl:analyze-string>
	</xsl:variable>

	<xsl:for-each-group select="$numbers" group-by=".">
		<xsl:sort select="current-grouping-key()"/>
		<xsl:sequence select="."/>
	</xsl:for-each-group>

You might want to tight up the regex a little to not allow "2." for
example...

cheers
andrew