Hi Tobias,
You need to install the Palladian Nodes extension. The Regex Extractor is shipped as part of them (and not included in the NodePit for KNIME extension).
Anyhow, you can use NodePit for KNIME to install the Palladian Nodes. If you already have installed NodePit for KNIME, start KNIME, go to the NodePit View, search for to the Regex Extractor node or Palladian and click the download button in the Installation section (see screenshot).
Alternatively, you can install the Palladian Nodes the conventional way as follows: Start KNIME and go to Help → Install New Software…, add the update site
https://download.nodepit.com/palladian/4.2
to the upcoming dialog and install the Palladian for KNIME plugin from there.
Once done, the Regex Extractor will show up in the Node Repository and can be drag&drop’ed from there. Let me know, if you are running into any problem. Happy to help!
Best regards,
Daniel
