Nikita Petrov wrote:
> In my practice I need to replace apostrophe with backslash and
> apostrophe in string. I using String#gsub, but it has unpredictable
> result in my own. That's I do in IRB to test my gsub call:
> 
> irb(main):001:0> str = "O'Reilly"
> => "O'Reilly"
> irb(main):002:0> str.gsub("'", "\\'")
> => "OReillyReilly"
> 
> As You see I have magic result: I want to have "O\\'Reilly", but result
> is one - "OReillyReilly".
> 
> Does anybody known how to fix this problem? Thanks.

The backslash has a special meaning in gsub. Use str.gsub("'", "\\\\'") 
instead.

TPR.
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