我一直在尝试配置Emacs，使其在缩进Ruby代码时插入一个"制表符"，而不是一系列"空格"。
到目前为止，我已经尝试过将变量ruby-indent-tabs-mode设置为t，这样，根据文档，它将"在ruby模式下插入制表符，如果这是非nil"。
我也尝试过通过Easy customisation定制它，它在我的init.el中插入了以下代码：

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(ruby-indent-tabs-mode t))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

通过C-h v检查变量后，它报告变量设置为t，但按TAB键会继续插入空格。
我甚至试着编辑ruby模式的.el文件，然后重新编译它，但没有效果。
我们会很感激的。

• ----编辑-----*

以下是通过C-h m报告的激活次要模式：
启用的次要模式：缩写自动完成自动组合
自动压缩自动加密文件名阴影字体锁定
全局自动完成全局字体锁定信息拼音行号菜单栏
显示-智能括号显示-智能括号-全局智能括号
智能括号-全局 transient 标记
init.el文件当前具有：

(require 'cask "/Users/snowingheart/.cask/cask.el")
(cask-initialize)
(require 'pallet)

(add-to-list 'load-path "~/elisp")
(load "php-mode")
(add-to-list 'auto-mode-alist
             '("\\.php[34]?\\'\\|\\.phtml\\'" . php-mode))

(global-set-key (kbd "C-x <up>") 'windmove-up)
(global-set-key (kbd "C-x <down>") 'windmove-down)
(global-set-key (kbd "C-x <right>") 'windmove-right)
(global-set-key (kbd "C-x <left>") 'windmove-left)

(require 'package)
(add-to-list 'package-archives
    '("marmalade" .
      "http://marmalade-repo.org/packages/"))
(package-initialize)

(global-set-key (kbd "C-x >") 'mc/mark-next-like-this)
(global-set-key (kbd "C-x <") 'mc/mark-previous-like-this)
(global-set-key (kbd "C-c C-<") 'mc/mark-all-like-this)
(global-set-key (kbd "C-S-c C-S-c") 'mc/edit-lines)

(require 'smartparens-config)
(require 'smartparens-ruby)
(require 'smartparens-erb)
(smartparens-global-mode)
(show-smartparens-global-mode t)

(sp-with-modes '(rhtml-mode)
               (sp-local-pair "<%=" "%>")
               (sp-local-pair "<%-" "%>"))
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories
             "~/.emacs.d/.cask/24.3.50.1/elpa/auto-complete-20130724.1750/dict")
(ac-config-default)
(setq ac-ignore-case nil)
(add-to-list 'ac-modes 'enh-ruby-mode)
(add-to-list 'ac-modes 'web-mode)

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(indent-tabs-mode t)
 '(ruby-indent-tabs-mode t))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

(setq-default indent-tabs-mode t)
(setq enh-ruby-indent-tabs-mode t)

(smart-tabs-insinuate 'ruby)
(smart-tabs-advice ruby-indent-line ruby-indent-level)
(setq ruby-indent-tabs-mode t)