Ruby：从字符串中提取单词
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Ruby: Extracting Words From String
提问by sybohy
I'm trying to parse words out of a string and put them into an array. I've tried the following thing:
我正在尝试从字符串中解析单词并将它们放入数组中。我试过以下事情：
@string1 = "oriented design, decomposition, encapsulation, and testing. Uses "
puts @string1.scan(/\s([^\,\.\s]*)/)
It seems to do the trick, but it's a bit shaky (I should include more special characters for example). Is there a better way to do so in ruby?
它似乎可以解决问题，但它有点不稳定（例如，我应该包含更多特殊字符）。在 ruby 中有更好的方法吗？
Optional: I have a cs course description. I intend to extract all the words out of it and place them in a string array, remove the most common word in the English language from the array produced, and then use the rest of the words as tags that users can use to search for cs courses.
可选：我有一个 cs 课程描述。我打算从中提取所有单词并将它们放在一个字符串数组中，从生成的数组中删除英语中最常见的单词，然后将其余单词用作用户可以用来搜索 cs 的标签培训班。
回答by David Nehme
The split command.
拆分命令。
words = @string1.split(/\W+/)
will split the string into an array based on a regular expression. \W means any "non-word" character and the "+" means to combine multiple delimiters.
将根据正则表达式将字符串拆分为数组。\W 表示任何“非单词”字符，“+”表示组合多个分隔符。
回答by lazzy.developer
For me the best to spliting sentences is:
对我来说，最好的拆分句子是：
line.split(/[^[[:word:]]]+/)
Even with multilingual words and punctuation marks work perfectly:
即使使用多语言单词和标点符号也能完美运行：
line = 'English words, Polski ?urek!!! crème fra?che...'
line.split(/[^[[:word:]]]+/)
=> ["English", "words", "Polski", "?urek", "crème", "fra?che"]
回答by BF4
Well, you could split the string on spaces if that's your delimiter of interest
好吧，如果这是您感兴趣的分隔符，您可以在空格上拆分字符串
@string1.split(' ')
Or split on word boundaries
或在单词边界上拆分
\W # Any non-word character
\b # Any word boundary character
Or on non-words
或非词
\s # Any whitespace character
Hint: try testing each of these on http://rubular.com
提示：尝试在http://rubular.com上测试每一个
And note that ruby 1.9 has some differences from 1.8
请注意，ruby 1.9 与 1.8 有一些不同
回答by ayckoster
For Rails you can use something like this:
对于 Rails，您可以使用以下内容：
@string1.split(/\s/).delete_if(&:blank?)
