How to backreference in Ruby regular [removed]regex) with gsub when I use grouping?

Question

I would like to patch some text data extracted from web pages. sample:

t=\"First sentence. Second sentence.Third sentence.\"

There is no sp

Answer 1

If you got here because of Rubocop complaining "Avoid the use of Perl-style backrefs." about $1, $2, etc... you can can do this instead:

some_id = $1
# or
some_id = Regexp.last_match[1] if Regexp.last_match

some_id = $5
# or
some_id = Regexp.last_match[5] if Regexp.last_match

It'll also want you to do

%r{//}.match(some_string)

instead of

some_string[//]

Lame (Rubocop)