如何将array.inspect的输出解析回数组 [英] How to parse output of array.inspect back into an array

问题描述

我想将多维数组存储在文本文件中并有效地重新加载它们.棘手的是，数组包含的字符串可能看起来像" ] , [ \\\""或其他任何内容.

I want to store multidimensional arrays in text files and reload them efficiently. The tricky part is that the array includes strings which could look like " ] , [ \\\"" or anything.

将表写入文件的最简单方法就是my_array.inspect(对吗?)

Easiest way of writing the table to file is just as my_array.inspect (right?)

然后如何从文本文件中读回的字符串(尽可能类似于"[\" ] , [ \\\\\\\"\"]")(如上所述)，尽可能快速，轻松地重新创建数组?

How do I then recreate the array as quickly and painlessly as possible from a string read back from the text file that might look like "[\" ] , [ \\\\\\\"\"]" (as in the above case)?

推荐答案

在我看来，这听起来太麻烦了.代替使用 YAML .

In my opinion, this sounds like too much trouble. Use YAML instead.

require 'yaml'
a = [ [ [], [] ], [ [], [] ] ]
File.open("output.yml", "w") do |f|
  f.write a.to_yaml
end
b = YAML.load File.open('output.yml', 'r')

作为替代方案，您可以改用 JSON .

As an alternative, you could use JSON instead.

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