nixos/pkgs/pkgsets/emacs/flyspell.nix

{ config, lib, ... }:

with lib;

mkIf (elem "emacs::flyspell" config.machine.pkgs) {
  programs.emacs.init.usePackage.flyspell = {
    enable = true;
    package = epkgs: null;
    diminish = [ "flyspell-mode" ];
    command = [ "flyspell-mode" "flyspell-prog-mode" ];
    hook = [];
    bind = {
      "C-M-<tab>" = "flyspell-switch-dictionary";
      "C-c f" = "ispell-word";
    };
    config = ''
      ;; Make flyspell less verbose and disable annoying keybind
      (setq flyspell-issue-message-flag nil
            flyspell-issue-welcome-flag nil
            flyspell-use-meta-tab nil)

      (defun flyspell-switch-dictionary ()
          (interactive)
          (let* ((dic ispell-current-dictionary)
          	   (change (if (string= dic "deutsch8") "english" "deutsch8")))
            (ispell-change-dictionary change)
            (message "Dictionary switched to %s" change)
            ))
    '';
  };
}