[R] A question on regular expression

[Bert Gunter]

> sub(".*(\\{.*\\}).*", "\\1","ab{cd$ }ed")
[1] "{cd$ }"

Use ".+" instead of ".*" within the {} if you don't want to return empty
{}'s.

You might wish to use the stringr package for string matching and
manipulation, as it provides a more user friendly and consistent interface
to these tasks.


Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Thu, Sep 12, 2019 at 9:31 AM Christofer Bogaso <
bogaso.christofer using gmail.com> wrote:

> Hi,
>
> I am wondering on what is the correct way to select a pattern which goes
> as -
>
> {"(any character with any length)"}
>
> The expressions " {" " and " "} " both are included in the pattern.
>
> For example, the lookup of the above pattern in the text "
> {"asaf455%"}57573blabla " will result in {"asaf455%"}
>
> Any help will be highly appreciated.
>
> Thanks,
>
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