On 10/10/23 01:57, Michael Chirico via R-devel wrote:
> It will be useful to package authors trying to validate input which is
> supposed to be a valid regular expression.
>
> As near as I can tell, the only way we can do so now is to run any
> regex function and check for the warning and/or cond
On 09/10/2023 7:57 p.m., Michael Chirico via R-devel wrote:
It will be useful to package authors trying to validate input which is
supposed to be a valid regular expression.
As near as I can tell, the only way we can do so now is to run any
regex function and check for the warning and/or conditi
It will be useful to package authors trying to validate input which is
supposed to be a valid regular expression.
As near as I can tell, the only way we can do so now is to run any
regex function and check for the warning and/or condition to bubble
up:
valid_regex <- function(str) {
stopifnot(i
