emacs - 如何在 Emacs 中以编程方式读取文件的内容？

Question

我想读取 .emacs 中的 config.json 文件，我该怎么做？

(require 'json)
(setq config (json-read-from-string (read-file "config.json")))

Answer 1

您可以将代码简化为:

(defun my-file-contents (filename)
  "Return the contents of FILENAME."
  (with-temp-buffer
    (insert-file-contents filename)
    (buffer-string)))

编辑:虽然在这个特殊情况下，我看到 json-read-file已经定义了，这就去掉了中间人。

Emacs 24.5 是这样定义的:

(defun json-read-file (file)
  "Read the first JSON object contained in FILE and return it."
  (with-temp-buffer
    (insert-file-contents file)
    (goto-char (point-min))
    (json-read)))