Re: [xsl] Is there a way in XSLT/XPath to find the portion of a string that matches a pattern?

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 10/03/2025 23:04, Martin Honnen martin.honnen@xxxxxx wrote:
> On 10/03/2025 23:01, Roger L Costello costello@xxxxxxxxx wrote:
> > Hi Folks,
> >
> > The following XPath determines if the string in $TEXT contains a vowel:
> >
> > matches($TEXT, 'A|E|I|O|U')
> >
> > If there is a match-the string in $TEXT contains a vowel-then which
> > vowel was matched? A? E? I? O? or U? It may be desirable to know that.
> >
> > Another example: an XSLT program wants to know the series of digits
> > in a string; if the string is, "The person put 12 dollars into the
> > jar" and the pattern is [0-9]+ then the matched portion is "12".
> >
> > Problem Statement: if the value of $TEXT is a string and the value of
> > $REGEX is a pattern, then is there a way in XSLT/XPath to find the
> > portion of the string that matches the pattern?
>
> You do know XSLT 2's and later xsl:analyze-string and XPath 3.1
> fn:analyze-string?

To give you an example, the XPath 3.1 expression

B  analyze-string("The person put 12 dollars into the jar",
"[0-9]+")//*:match

returns an element node

B  <match xmlns="http://www.w3.org/2005/xpath-functions";>12</match>