(use-package company
  :bind
  ("C-<tab>" . company-complete)
  :config
  (setq company-idle-delay 0)
  (define-key company-active-map (kbd "TAB") 'company-complete-common-or-cycle)
  (define-key company-active-map (kbd "<tab>") 'company-complete-common-or-cycle)
  (setq company-dabbrev-downcase nil)
  (add-hook 'after-init-hook 'global-company-mode)

  ;; Add yasnippet support for all company backends
  (defvar company-mode/enable-yas t
    "Enable yasnippet for all backends.")
  (defun company-mode/backend-with-yas (backend)
    (if (or (not company-mode/enable-yas) (and (listp backend) (member 'company-yasnippet backend)))
        backend
      (append (if (consp backend) backend (list backend))
              '(:with company-yasnippet))))
  (setq company-backends (mapcar #'company-mode/backend-with-yas company-backends)))