Using wild cards in Action search strings

For an Action that utilises the Redact function to store found search values, how can I use wild card characters in the search string. For example * for any characater and ? for a specific character?

Presently the Action has three steps:

1: Search & Remove Text which offers a dialog for search strings

2: Execute Javascript which takes the found redactions and changes them to highlight annotations (I then do various things with different javascripts, like replacing text, commenting, striking out, etc.)

3: Save the file

The search string with cards will be applied in the first step.