scala regular expressions for ctags and tagbar in vim

dot_ctags

--langdef=Scala
--langmap=Scala:.scala
--regex-Scala=/^[ \t]*(((implicit|private|public)?[ \t]*)*(\[[a-zA-Z0-9_]*\])?[ \t]*)*class[ \t]*([a-zA-Z0-9_]+)/\5/c,classes/
--regex-Scala=/^[ \t]*(((implicit|private|public)?[ \t]*)*(\[[a-zA-Z0-9_]*\])?[ \t]*)*object[ \t]*([a-zA-Z0-9_]+)/\5/o,objects/
--regex-Scala=/^[ \t]*trait[ \t]*([a-zA-Z0-9_]+)/\1/t,traits/
--regex-Scala=/^[ \t]*case[ \t]*class[ \t]*([a-zA-Z0-9_]+)/\1/r,cclasses/
--regex-Scala=/^[ \t]*abstract[ \t]*class[ \t]*([a-zA-Z0-9_]+)/\1/a,aclasses/
--regex-Scala=/[ \t]*(((implicit|override|lazy|private|public)?[ \t]*)*(\[[a-zA-Z0-9_]*\])?[ \t]*)*def[ \t]*([a-zA-Z0-9_=]+)[ \t]*.*[:={]/\5/m,methods/
--regex-Scala=/[ \t]*(((override|lazy|private|public)?[ \t]*)*(\[[a-zA-Z0-9_]*\])?[ \t]*)*val[ \t]*([a-zA-Z0-9_]+)[ \t]*[:=]/\5/V,values/
--regex-Scala=/[ \t]*(((override|lazy|private|public)?[ \t]*)*(\[[a-zA-Z0-9_]*\])?[ \t]*)*var[ \t]*([a-zA-Z0-9_]+)[ \t]*[:=]/\5/v,variables/
--regex-Scala=/^[ \t]*type[ \t]*([a-zA-Z0-9_]+)[ \t]*[\[<>=]/\1/T,types/
--regex-Scala=/^[ \t]*import[ \t]*([a-zA-Z0-9_{}., \t=>]+$)/\1/i,includes/
--regex-Scala=/^[ \t]*package[ \t]*([a-zA-Z0-9_.]+$)/\1/p,packages/