I have created simple packageStartupMessage() messages with characters such as ç, ã, õ and ú inside a .onAttach function. Should the devtools::check() function really display the "Portable packages must use only ASCII characters in their R code" warning?
As mentioned in Chapter 7 R code | R Packages you should only place ASCII characters in code.
Fixed code placing problematic text within cat(stringi::stri_escape_unicode()) to generate ASCII accepted text and later placed output inside
packageStartupMessage(stringi::stri_conv()) within code. Notice the new stringi::stri_conv() function being used.
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