Reputation: 15337
Is there a way to extract the strings removed by String#split
into a separate array?
s = "This is a simple, uncomplicated sentence."
a = s.split( /,|\./ ) #=> [ "This is a simple", "uncomplicated sentence" ]
x = ... => should contain [ ",", "." ]
Note that the actual regex I need to use is much more complex than this example.
Upvotes: 0
Views: 83
Reputation: 168269
When you want both the matched delimiters and the substrings in between as in Stefan's comment, then you should use split
with captures.
"This is a simple, uncomplicated sentence."
.split(/([,.])/)
# => ["This is a simple", ",", " uncomplicated sentence", "."]
If you want to separate them into different arrays, then do:
a, x =
"This is a simple, uncomplicated sentence."
.split(/([,.])/).each_slice(2).to_a.transpose
a # => ["This is a simple", " uncomplicated sentence"]
x # => [",", "."]
or
a =
"This is a simple, uncomplicated sentence."
.split(/([,.])/)
a.select.with_index{|_, i| i.even?}
# => ["This is a simple", " uncomplicated sentence"]
a.select.with_index{|_, i| i.odd?}
# => [",", "."]
Upvotes: 1