Description
This is an issue that emerges when a certain, admittedly unusual, combination of valid characters is printed on the console via fs::path(). The shortest combination I found is the following (with the relevant error):
fs::path("śl")
Error in base::nchar(x, type, allowNA, keepNA) :
invalid multibyte string, element 1
The issue does not seem to be related to the ś itself, as the following works nicely:
fs::path("ś")
Obvious solutions such as the following all return the same error:
fs::path(stringi::stri_enc_toutf8("śl"))
fs::path(stringi::stri_enc_tonative("śl"))
fs::path(fs::path_sanitize("śl"))
Error in base::nchar(x, type, allowNA, keepNA) :
invalid multibyte string, element 1
If you look at the reprex, all seemingly works fine. But if I run the same code on the console, then I get the above error.
I include a reprex for reference, as well as a screenshot, since the issue is not fully visible via reprex.
In the real world, this issue emerges as I print fs::path() as a form to show advancement in a script that processes data related to a bunch of cities, including the Polish city of Przemyśl.
Of course there are ways around it, but since it broke my scripts, I still decided to report this. Tested with both the current development version (see reprex below) and version currently on CRAN (1.5.2)
library("fs")
# see e.g. https://en.wikipedia.org/wiki/Przemy%C5%9Bl
x <- "Przemyśl"
# works
print(x)
#> [1] "Przemyśl"
# throws error
fs::path(x)
#> Przemyśl
# throws error
fs::path(stringi::stri_enc_toutf8(x))
#> Przemyśl
# works
fs::path_sanitize(filename = x)
#> [1] "Przemyśl"
# throws error
fs::path(fs::path_sanitize(filename = x))
#> Przemyśl
# works
y <- invisible(fs::path(x))
# works
stringr::str_c(y)
#> [1] "Przemyśl"
# works
filename <- fs::path(tempdir(), "Przemyśl.txt")
# throws error
fs::path(filename)
#> /tmp/RtmpzO4Dt3/Przemyśl.txt
# works
writeLines("test", fs::path(filename))
# works
fs::path("ś")
#> ś
# works
fs::path("Przemyś")
#> Przemyś
# throws error
fs::path("śl")
#> śl
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Created on 2022-05-31 by the reprex package (v2.0.1)