[R] parsing files with "\" character

Jeff Newmiller jdnewm|| @end|ng |rom dcn@d@v|@@c@@u@
Tue Aug 27 20:43:56 CEST 2019

The principles of regex are basically the same between R and those other languages, so I don't see why you would switch... but if you did, asking here would be inappropriate.

I think the short answer is yes, but can't be specific without a reproducible example. ([1] is recommended but not required.)

Keep in mind that R has a syntax for strings that uses \ for escaping the following character. Thus, "\\" is a single-character string with a backslash in it. However, grep also uses backslash for escaping, so if you want to search for a single backslash in a target string then grep needs two backslashes, but each of those has to be escaped in an R string so you would use four backslashes in R source code strings to match one in the target.

[1] package reprex

On August 26, 2019 10:56:24 PM PDT, April Ettington <aprilettington using gmail.com> wrote:
>Is there any way to parse files that include the \ character in a
>When I try to use grep to extract strings with a pattern that includes
>it fails.
>If there is no way to do it with R, is it possible with python or a
>Thank you,
>	[[alternative HTML version deleted]]
>R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>PLEASE do read the posting guide
>and provide commented, minimal, self-contained, reproducible code.

Sent from my phone. Please excuse my brevity.

More information about the R-help mailing list