When trying to escape apostrophe with 'gsub', I get backreference

Question

I have this code:

"1'2".gsub("'","\\'")

Instead of "1\'2", I get: "122". Why?

score 1 · Answer 1 · answered Aug 21 '17 at 01:32

1

You need to use this:

puts "1'2".gsub("'","\\\\'")

answered Aug 21 '17 at 01:32

Momus

score 0 · Accepted Answer · answered Aug 21 '17 at 01:53

0

It is because "\\'" means the context following the match, which is "2".

answered Aug 21 '17 at 01:53

sawa

2 Answers2