Emacs: How to generate etags for coffeescript?

Question

I just found the coffeetags tool and can confirm that it works with vim.

Is there something similar for Emacs? Has anyone managed to get etags working for Emacs with coffeescript?

Answer 1

This it what I've done (thanks to Alex Ott for the link):

1. Install Exuberant ctags via Emacs package manager
2. Install ctags

3. Create a .ctags file in your project root directory (here is the link to the original Gist):

   --langdef=CoffeeScript
   --langmap=CoffeeScript:.coffee
   --regex-CoffeeScript=/(^|=[ \t])*class ([A-Za-z.]+)( extends [A-Za-z.]+)?$/\2/c,class/
   --regex-CoffeeScript=/^[ \t]*@?([A-Za-z.]+):.*[-=]>.*$/\1/f,function/
   --regex-CoffeeScript=/^[ \t]*([A-Za-z.]+)[ \t]+=.*[-=]>.*$/\1/f,function/
   --regex-CoffeeScript=/^[ \t]*([A-Za-z.]+)[ \t]+=[^->\n]*$/\1/v,variable/
   

4. Generate the TAGS file: ctags -e -R source_folder

Answer 2

Have you tried following recipe? But you may need to use exuberant ctags, not default etags...