为什么不能在控制字符上分割字符串？ [英] Why can't I split a string on control characters?

问题描述

当我一起找到字符 ^ C 或 ^ B 时，我试图拆分一行。出于某些原因，它无法正常拆分。

I am trying to split a line when I find the characters ^C or ^B together. For some reason it is not splitting properly.

我一直在 Rubular 并对其进行了测试，并认为应该将其拆分。

I have been on Rubular and tested this and supposedly it should split it.

我正在阅读并尝试拆分的行如下所示：

The lines that I am reading in and trying to split look something like this:

SOME_KEY^CSOME_VALUE^BSOME_KEY^CSOME_VALUE

代码是：

final_array = []
temp_array = []

array__with_all_of_the_data.each do |x|
  temp_array = x.split(/\^C/)
  temp_array.each do |y|
    final_array << y.split(/\^B/)
  end  
  @final_array << final_array.join(",")
end

推荐答案

使用正则表达式 / \ ^ [BC] / ：

>> 'SOME_KEY^CSOME_VALUE^BSOME_KEY^CSOME_VALUE'.split(/\^[BC]/)
=> ["SOME_KEY", "SOME_VALUE", "SOME_KEY", "SOME_VALUE"]

如果要替换 \B / \C 与，一起使用gsub代替 split + join ：

If you want replace \B / \C with ,, use gsub instead of split + join:

>> 'SOME_KEY^CSOME_VALUE^BSOME_KEY^CSOME_VALUE'.gsub(/\^[BC]/, ',')
=> "SOME_KEY,SOME_VALUE,SOME_KEY,SOME_VALUE"

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