arrays - 如何在 ruby​​ 中使用空行作为分隔符将字符串拆分为数组？

Question

如何拆分字符串，例如:

aaaaa
bbbb

aaaaa
ccccccc

aaa
rrrrt

使用空行作为分隔符放入一个数组中？

Answer 1

嗯，用String#split

'aaaaa bbbb'.split
=> ["aaaaa", "bbbb"]

split(pattern=nil, [limit]) → an_array

Divides str into substrings based on a delimiter, returning an array of these substrings.

[...]

If pattern is nil, the value of $; is used. If $; is nil (which is the default), str is split on whitespace as if ' ' were specified.

更新:

要在空行上拆分，可以使用 /\n{2,}/ 模式。它还处理由多个空行分隔的段落:

a = <<END
aaaaa
bbbb


aaaaa
ccccccc

aaa
rrrrt
END

a.split(/\n{2,}/)
=> ["aaaaa\nbbbb", "aaaaa\nccccccc", "aaa\nrrrrt\n"]