[Haskell-cafe] Unicode symbols in operators

(I'm trying to improve Sublime Text's Haskell lexer.) https://www.haskell.org/onlinereport/haskell2010/haskellch10.html says uniSymbol → any Unicode symbol or punctuation What is meant here, is "Unicode symbol" literally \p{Symbol} in regex, or more? So uniSymbol = \p{Symbol} | \p{Punctuation} Thanks!