vardef TODO = '(TODO|FIXME)([:]?)'

environment comment delim "/**" "*/" multiline nested begin
  type = '@[[:alpha:]]+'
  todo = $TODO
end

regexp = `([^[:alnum:]]).*(\1)`

string delim "<" ">"

string2 delim "<<" ">>" multiline

(paren,normal,paren) = `(\[)(.*)(\])`