elisp：将文件读入列表列表 [英] elisp: read file into list of lists

问题描述

我需要将文件内容读入二维列表，用换行符和空格分隔。例如，

I need to read a file contents into a two-dimensional list, split by newlines and spaces. For example,

a b
c d

需要成为

(list (list "a" "b") (list "c" "d"))

目前我只知道如何将内容读入简单列表由换行确定。每当我需要使用该列表中的一个元素时，我必须每隔一段时间分割一次空格，但是最好只能一次完成。

Currently I only know how to read the contents into a simple list determined by newlines. Whenever I need to use an element from that list, I have to split it by spaces everytime, but preferably this should be done only once beforehand.

推荐答案

像这样：

(with-current-buffer (find-file-noselect "~/foo")
  (mapcar (lambda (x) (split-string x " " t))
          (split-string
           (buffer-substring-no-properties (point-min) (point-max))
           "\n"))) 

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