rules:
- preproc: "[\\{\\|]\\b(atom|lit|sym|ident|call|lvalue|sideeffect|nosideeffect|param|genericparam|module|type|let|var|const|result|proc|method|iterator|converter|macro|template|field|enumfield|forvar|label|nk[a-zA-Z]+|alias|noalias)\\b[\\}\\|]"