将字符串数组拆分为字符串数组数组

I am looking for a way to split this array of strings:

我正在寻找一种方法来分割这个字符串数组：

["this", "is", "a", "test", ".", "I", "wonder", "if", "I", "can", "parse", "this",
"text", "?", "Without", "any", "errors", "!"]

into groups terminated by a punctuation:

由标点符号终止的群组：

[
  ["this", "is", "a", "test", "."],
  ["I", "wonder", "if", "I", "can", "parse", "this", "text", "?"],
  ["Without", "any", "errors", "!"]
]

Is there a simple method to do this? Is the most sane approach to iterate the array, adding each index to a temporary array, and append that temporary array to the container array when punctuation is found?

有一个简单的方法来做到这一点？迭代数组是最理智的方法，将每个索引添加到临时数组，并在找到标点符号时将该临时数组附加到容器数组中？

I was thinking of using slice or map, but I can't figure out if it is possible or not.

我正在考虑使用切片或地图，但我无法弄清楚它是否可能。

2 个解决方案

#1

Check out Enumerable#slice_after:

查看Enumerable＃slice_after：

x.slice_after { |e| '.?!'.include?(e) }.to_a

#2

@ndn has given the best answer to this question, but I will suggest another approach that may have application to other problems.

@ndn给出了这个问题的最佳答案，但我会建议另一种可能适用于其他问题的方法。

Arrays such as the one you have given are generally obtained by splitting strings on whitespace or punctuation. For example:

您给出的数组通常是通过在空格或标点符号上拆分字符串来获得的。例如：

s = "this is a test. I wonder if I can parse this text? Without any errors!"
s.scan /\w+|[.?!]/
  #=> ["this", "is", "a", "test", ".", "I", "wonder", "if", "I", "can",
  #    "parse", "this", "text", "?", "Without", "any", "errors", "!"]

When this is the case you may find it more convenient to manipulate the string directly in some other way. Here, for example, you could first use String#split with a regex to break the string s into sentences:

在这种情况下，您可能会发现以其他方式直接操作字符串更方便。例如，您可以首先使用带有正则表达式的String＃split将字符串s分解为句子：

r1 = /
     (?<=[.?!]) # match one of the given punctuation characters in capture group 1
     \s*   # match >= 0 whitespace characters to remove spaces
     /x    # extended/free-spacing regex definition mode

a = s.split(r1)
  #=> ["this is a test.", "I wonder if I can parse this text?",
  #    "Without any errors!"]

and then split up the sentences:

然后拆分句子：

r2 = /
     \s+       # match >= 1 whitespace characters
     |         # or
     (?=[.?!]) # use a positive lookahead to match a zero-width string
               # followed by one of the punctuation characters
     /x

b = a.map { |s| s.split(r2) }
  #=> [["this", "is", "a", "test", "."],
  #    ["I", "wonder", "if", "I", "can", "parse", "this", "text", "?"],
  #    ["Without", "any", "errors", "!"]]

#1