how vim-mode communicate with system clipboard about vim

[cldwalker]

The Vim plugin depends on CodeMirror for yanking values and saving them to registers. CodeMirror saves its registers in CodeMirror.Vim.getRegisterController.registers(). The system clipboard is independently accessible via node-webkit. If you'd like to copy your latest vim yank to your clipboard, you can use this command:

(defn get-register-value [register]
  (-> (.-registers (CodeMirror.Vim.getRegisterController))
      (aget register) ;; pick a register
      (aget "keyBuffer")
      first))

(cmd/command {:command :ltfiles.copy-latest-vim-register
              :desc "ltfiles: Copies latest vim yank to system clipboard"
              :exec (fn []
                      (lt.objs.platform/copy (get-register-value "0")))})

Hope that helps.
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