Re: [xsl] XSLT Regex for Matching Curly Braces

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

On 10.06.2019 18:30, Don Smith dsmith_lockesmith@xxxxxxxxx wrote:
> Hello,
>
> I'm attempting to write a regex inB  XSLT on matching curly braces and
> then produce the correct markup output. Between my lack of expertise in
> regex generally and the special circumstances in XSLT with regard to
> AVTs and curly braces I'm having little success.
>
> The requirement is pretty straight-forward. Given a text node such as this:
>
> } dui {elementum}. Potenti ullamcorper vitae tempus condimentum
> dignissim facilisis arcu ligula {elementum} {
> **//___^
> I want the output markup to be:
>
> } dui<ph>elementum</ph>. Potenti ullamcorper vitae tempus condimentum
> dignissim facilisis arcu ligula<ph>elementum</ph>{
> **//___^
> So, two parts to my question:
>
> 1. What is the correct regex in XSLT to match a set of curly braces with
> one or characters between them and no white space?

It all depends on where you put it.

> 2. Is <xsl:analyze-string> the best choice for processing the string via
> the regex and handling the output or is another approach preferred?

In XSLT 3 I think it is a bit easier using the analyze-string function
and pushing the result through templates e.g. do

<xsl:apply-templates select="analyze-string(., '\{(\p{L}+)\}')"
mode="wrap"/>

for your text node and then

  <xsl:template match="match"
xpath-default-namespace="http://www.w3.org/2005/xpath-functions";
mode="wrap">
      <ph>
          <xsl:value-of select="group"/>
      </ph>
  </xsl:template>

to handle the processing.