Re: Back reference across range

2016-02-29 20:40 GMT+03:00 Paul <google1241@rainslide.net>:
> To fold a closing brace at the same indentation level as its opening "sub
> {", this doesn't work, because of the back reference:
>
> :g/\v^(\s+)sub \{/,/\v\1\}/fold
>
> This is just an example, I could be matching "foo" and "bar", I'm just
> wondering if there is a way to use a back reference across a range.

You can save indentation in a variable and use :execute to construct a
regular expression which does not use cross-regexp references. The
only place where cross-regexp references actually work is `:syntax
region start`: `:h /\z(`. Documentation though is written like there
were plans to use \z( outside of :syntax.

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