Install as per instructions below: Here is my.ctags config for scala: --langdef=scala --langmap=scala:.scala --regex-scala=/^[ \t]*class[ \t]+([a-zA-Z0-9_]+)/\1/c,classes/ --regex-scala=/.
*class[ \t]+([a-zA-Z0-9_]+)/\1/c,classes/ --regex-scala=/^[ \t]*trait[ \t]+([a-zA-Z0-9_]+)/\1/t,traits/ --regex-scala=/.