How to make a regular expression to leave a hyphen or dash in a compound word?

Question

Ruby on Rails

you must leave the dash in the compound word. example:
something at the beginning of a miracle-yudo something at the end
something at the beginning of a miracle - yudo something at the end

Answer 1

/wonder\-yudo/im

Answer 2

/[^\p{L}\s\d-]|\s-|-\s|^-|-$/im