RE: Function to Extract integer from string

Thanks David. I think you are right. This may simplify my need to group and
sort.



-----Original Message-----
From: David Carlisle [mailto:davidc@xxxxxxxxx] 
Sent: Tuesday, October 24, 2006 9:51 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re:  Function to Extract integer from string

  BTW, what does
  "'regex="\d+\.?\d*"' do?


\d is a digit so \d+ is one or more digits \. is a . so \.? is 0-or-1 .
and \d* is zero or more  digits

[0-9] also matches digits but with a rather anglo-saxon.ascii view of
what constitutes a digit. \d matches any unicode character with the
appropriate digit property. Still I doubt that US code of Federal
Regulations uses digits from non latin scripts so it probably comes to
the same thing in this case
		<xsl:variable name="all" select="replace(.,'[^
0-9\.]','')"/>
		<xsl:variable name="numbers" as="xs:string*">
			<xsl:analyze-string select="$all" regex="\d+\.?\d*">
				<xsl:matching-substring>
					<xsl:sequence select="."/>
					</xsl:matching-substring>
				</xsl:analyze-string>
			</xsl:variable>

I think that's just giving the sequence of numbers which you could do as

<xsl:variable name="numbers" as="xs:string*"
select="tokenize(.,'[^0-9\.]+')"/>


David