I see that the Sigil Clip Editor has some basic regex (e.g., the first numbered group
matches the entire selected text in the replace text and
recalls the text with the entire selected text in uppercase), but I don't see any specification of the syntax for the Clip Editor. Does anyone know what the full range of regex available to the Clip Editor?
Specifically, I am wondering if I can easily parse the selected text using regex pattern and replace it with some other text using the Clips functionality.