Regex Pattern Matching to an array

Question

I have a string defined as follows:

st = "The quick {{brown}} fox jumped over the {{fence}}."

To remove the {{ }}, I am doing the following:

st.gsub(/{{(.*?)}}/, '\1') 
=> "The quick brown fox jumped over the fence."

What I would like to do now is put each of the items that matched the regular expression into an array, so that the end result looks like:

arr = []
puts arr => ['brown', 'fence']
puts st => "The quick brown fox jumped over the fence."

Thanks in advance.

falsetru · Accepted Answer · 2014-10-26 14:07:09Z

3

String#gsub, String#gsub! accepts optional block parameter. The return value of the block is used as a replacement string.

st = "The quick {{brown}} fox jumped over the {{fence}}."
arr = []
st.gsub!(/{{(.*?)}}/) { |m| arr << $1; $1 }
st
# => "The quick brown fox jumped over the fence."
arr
# => ["brown", "fence"]

answered Oct 26, 2014 at 14:07

falsetru

371k69 gold badges769 silver badges659 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

meoww- Over a year ago

Can't accept this answer for 10 minutes, but this is the answer and it works fine in my IRB. Will accept soon :-) Thanks!

sawa · Accepted Answer · 2014-10-26 18:56:06Z

2

st.gsub!(/{{(.*?)}}/).with_object([]){|_, a| a.push($1); $1} #=> ["brown", "fence"]
st #=> "The quick brown fox jumped over the fence."

edited Oct 26, 2014 at 18:56

answered Oct 26, 2014 at 14:46

sawa

169k51 gold badges287 silver badges398 bronze badges

1 Comment

sawa Over a year ago

@CarySwoveland Yes. You are right. I first had it, and then somehow removed it. I was wrong.

Collectives™ on Stack Overflow

Regex Pattern Matching to an array

2 Answers 2

1 Comment

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related