Ryuichi Hayashida wrote:
> Hello.
> I would report a bug of regexp.
>
> * Problem
>
> "aba" =~# '^\(.\+\).*\1$'
>
> This expression is equivalent to 1 when 'regexpengine' is set to 1.
> However, when it is set to 0 or 2, the expression is equivalent to 0.
> Backward reference seems to fail.
>
> Note that below expression gets 1 whatever the value of 'regexpengine' is.
>
> "aa" =~# '^\(.\+\).*\1$'
>
> * Environment
> - Vim 7.4-45
> - Ubuntu 12.04
I can reproduc it.
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