Xavier, short answer is no, because there is no guarantee that user's system supports any encoding other than ASCII, so that code wouldn't run. Hence you can't use non-ASCII characters in symbols.
That said, you can use Unicode _strings_, so metadata[["\u00e1cc\u00e9nts"]] will work in ASCII-locale, but I would strongly caution against such objects in public packages. Cheers, Simon > On Dec 22, 2021, at 9:18 AM, X FiM <xfim...@gmail.com> wrote: > > Dear all, > > Somewhat related to a question that I posted a while ago (see > https://stat.ethz.ch/pipermail/r-package-devel/2021q4/007540.html), once > I've got a dataframe in my cache, some of the functions need to use some of > the variables. It turns out that some of the columns contain UTF-8 > characters, and therefore I need to be able to call > `metadata$variable.with.áccénts`. > > But the package development checks warn me that no non-ASCII characters are > allowed in the files "checking R files for non-ASCII characters ... > WARNING". > > I have specified that the package uses UTF-8 in DESCRIPTION ("Encoding: > UTF-8"). I have also defined "options(encoding = "UTF-8")" before calling > the checks, but nothing seems to matter. I have also tried to give the > proper UTF-8 codes, like in `metadata$variable.with.\u00e1cc\u00e9nts`, but > with no luck either. Also it gives an error with "\uxxxx sequences not > supported inside backticks". > > So which approach do you recommend? Is there any solution that I can use to > call variables that use non-ASCII characters? > > Thank you very much. > > -- > Xavier > > [[alternative HTML version deleted]] > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
