2

Currently I'm ignore these buffers:

(setf helm-boring-buffer-regexp-list '("\\` " "\\*helm" "\\*helm-mode"
                                       "\\*Echo Area" "\\*Minibuf" "\\*monky-cmd-process\\*"
                                       "\\*epc con" "\\*Compile-Log\\*" "\\*monky-process\\*"
                                       "\\*CEDET CScope\\*" "\\*Messages\\*" "\\*Flycheck error"
                                       "\\*.+(.+)" "elpa/.+" "tramp/.+"
                                       "\\*Gofmt Errors\\*" "\\*autopep8"
                                       "\\*magit-process:" "\\*magit-diff:" "\\*anaconda-mode\\*"))

Ok. I started using Circe for IRC and all that, but it annoys me seeing the buffer of each channel and the buffer of the server in the Helm buffer every time I hit C-x b, I feel that my buffer list is cluttered. I'm on the way of using helm-circe to manage those buffers alone.

So, I was wondering if it where even possible to tell Helm to ignore those buffers that have certain major mode activated, in this particular case, circe-mode.

1
  • You can't ignore buffer according to its major mode easily, one way that I can image is to advice the function (such as helm-skip-boring-buffers, which is used by helm to help build a buffer list) to skip the major mode as you like. However, according to my little experimentation, the buffer name created by circe is still very specialized (e.g., irc.freenode.net:6697 and #emacs), so it is easy to filter by using their buffer name. – xuchunyang Jul 26 '16 at 6:47
4

Yes, a regexp that starts with an asterisk filters out by major mode, exactly what you need. So add "\\*circe-mode" to helm-boring-buffer-regexp-list list.

(To convince yourself, you can first try it right in the buffer list, by typing *circe-mode as the pattern and making sure you see only the buffers you want to filter out.)

1

The buffer names created by Circe look like #emacs and irc.freenode.net:6697 from here, and the following is how to tell helm to ignore them:

(with-eval-after-load 'helm-buffers
  (add-to-list 'helm-boring-buffer-regexp-list "\\`#")
  (add-to-list 'helm-boring-buffer-regexp-list "irc.freenode.net:6697"))

As far as I know, there is no easy way to filter according to major mode.

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