ctags regexs for scala

.ctags.conf

--langdef=Scala
--langmap=Scala:.scala

--regex-scala=/^[ \t]*((abstract|final|sealed|implicit|lazy)[ \t]*)*(private|protected)?[ \t]*class[ \t]+([a-zA-Z0-9_]+)/\4/c,classes/
--regex-scala=/^[ \t]*((abstract|final|sealed|implicit|lazy)[ \t]*)*(private|protected)?[ \t]*object[ \t]+([a-zA-Z0-9_]+)/\4/c,objects/
--regex-scala=/^[ \t]*((abstract|final|sealed|implicit|lazy)[ \t]*)*(private|protected)?[ \t]*case class[ \t]+([a-zA-Z0-9_]+)/\4/c,classes/
--regex-scala=/^[ \t]*((abstract|final|sealed|implicit|lazy)[ \t]*)*(private|protected)?[ \t]*case object[ \t]+([a-zA-Z0-9_]+)/\4/c,objects/
--regex-scala=/^[ \t]*((abstract|final|sealed|implicit|lazy)[ \t]*)*(private|protected)?[ \t]*trait[ \t]+([a-zA-Z0-9_]+)/\4/t,traits/
--regex-scala=/^[ \t]*type[ \t]+([a-zA-Z0-9_]+)/\1/T,types/
--regex-scala=/^[ \t]*(override)?[ \t]*(private|protected)?[ \t]*((abstract|final|sealed|implicit|lazy)?[ \t]*)def[ \t]+([a-zA-Z0-9_]+)/\5/m,methods/
--regex-scala=/^[ \t]*(override)?[ \t]*(private|protected)?[ \t]*((abstract|final|sealed|implicit|lazy)?[ \t]*)val[ \t]+([a-zA-Z0-9_]+)/\5/l,constants/
--regex-scala=/^[ \t]*(override)?[ \t]*(private|protected)?[ \t]*((abstract|final|sealed|implicit|lazy)?[ \t]*)var[ \t]+([a-zA-Z0-9_]+)/\5/l,variables/
--regex-scala=/^[ \t]*package[ \t]+([a-zA-Z0-9_.]+)/\1/p,packages/ 

--exclude=target
--exclude=.git