Error in grep(pattern, bfr, value = TRUE), unable to translate to a wide string

[olivroy]

I see this problem when I use the styler addin ever since I upgraded to R 4.3.0. I tried to narrow it down, and I think R.cache may be the culprit.

Can't reproduce with a reprex, but here is what I see in interactive session.

My OS is Windows and R is in a French locale.

options(warn = 2) 
R.cache::getCachePath("styler")
Erreur dans grep(pattern, bfr, value = TRUE) :    
(converti depuis l'avis) unable to translate ' Le num<82>ro de s<82>rie du volume est 1451-5EA6' to a wide string 

 traceback()
18: doWithOneRestart(return(expr), restart)
17: withOneRestart(expr, restarts[[1L]])
16: withRestarts({         .Internal(.signalCondition(simpleWarning(msg, call), msg,              call))         .Internal(.dfltWarn(msg, call))     }, muffleWarning = function() NULL)
15: .signalSimpleWarning("unable to translate ' Le num<82>ro de s<82>rie du volume est 1451-5EA6' to a wide string",          base::quote(grep(pattern, bfr, value = TRUE)))
14: grep(pattern, bfr, value = TRUE)
13: FUN(X[[i]], ...)
12: lapply(X = X, FUN = FUN, ...)
11: sapply(paths, FUN = readlink, USE.NAMES = FALSE)
10: Sys.readlink2(pathname, what = "corrected")
9: fileAccess.default(pathT, mode = 2)
8: fileAccess(pathT, mode = 2)
7: getWritablePathname.Arguments(static, file = "dummy-not-created",         path = path, ...)
6: getWritablePathname(static, file = "dummy-not-created", path = path,         ...)
5: getWritablePath.Arguments(static, ...)
4: getWritablePath(static, ...) at <text>#1
3: Arguments$getWritablePath(path)
2: getCachePath.default("styler")
1: R.cache::getCachePath("styler")

R.cache::getCachePath("styler")
#> [1] "C:\\Users\\user\AppData\\Local\\R\\cache\\R\\R.cache/styler"

^{Created on 2024-02-26 with reprex v2.1.0}

Session info

sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.3.2 (2023-10-31 ucrt)
#>  os       Windows 10 x64 (build 19044)
#>  system   x86_64, mingw32
#>  ui       RTerm
#>  language (EN)
#>  collate  French_Canada.utf8
#>  ctype    French_Canada.utf8
#>  tz       America/Toronto
#>  date     2024-02-26
#>  pandoc   3.1.11 @ C:/Users/User/AppData/Local/Programs/RStudio/resources/app/bin/quarto/bin/tools/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version     date (UTC) lib source
#>  cli           3.6.2       2023-12-11 [1] CRAN (R 4.3.2)
#>  digest        0.6.34      2024-01-11 [1] CRAN (R 4.3.1)
#>  evaluate      0.23        2023-11-01 [1] CRAN (R 4.3.2)
#>  fastmap       1.1.1       2023-02-24 [1] CRAN (R 4.3.0)
#>  fs            1.6.3       2023-07-20 [1] CRAN (R 4.3.1)
#>  glue          1.7.0       2024-01-09 [1] CRAN (R 4.3.2)
#>  htmltools     0.5.7       2023-11-03 [1] CRAN (R 4.3.2)
#>  knitr         1.45        2023-10-30 [1] CRAN (R 4.3.1)
#>  lifecycle     1.0.4       2024-02-14 [1] Github (r-lib/lifecycle@9302cea)
#>  magrittr      2.0.3       2022-03-30 [1] CRAN (R 4.3.0)
#>  purrr         1.0.2       2023-08-10 [1] CRAN (R 4.3.1)
#>  R.cache       0.16.0      2022-07-21 [1] CRAN (R 4.3.1)
#>  R.methodsS3   1.8.2       2022-06-13 [1] CRAN (R 4.3.0)
#>  R.oo          1.26.0      2024-01-24 [1] CRAN (R 4.3.2)
#>  R.utils       2.12.3      2023-11-18 [1] CRAN (R 4.3.2)
#>  reprex        2.1.0       2024-01-11 [1] CRAN (R 4.3.2)
#>  rlang         1.1.3.9000  2024-02-21 [1] Github (r-lib/rlang@009f8e3)
#>  rmarkdown     2.25        2023-09-18 [1] CRAN (R 4.3.1)
#>  rstudioapi    0.15.0.9000 2024-02-22 [1] Github (rstudio/rstudioapi@5b639f9)
#>  sessioninfo   1.2.2       2021-12-06 [1] CRAN (R 4.3.0)
#>  styler        1.10.2      2023-08-29 [1] CRAN (R 4.3.1)
#>  vctrs         0.6.5       2023-12-01 [1] CRAN (R 4.3.2)
#>  withr         3.0.0       2024-01-16 [1] CRAN (R 4.3.1)
#>  xfun          0.42        2024-02-08 [1] CRAN (R 4.3.2)
#>  yaml          2.3.8       2023-12-11 [1] CRAN (R 4.3.2)
#> 
#>  [1] C:/Users/user/AppData/Local/R/win-library/4.3
#>  [2] C:/Program Files/R/R-4.3.2/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

 I also get a couple extra warnings when trying to style a file, all seemignly coming from the same place,

Messages d'avis :
1: Dans grep(pattern, bfr, value = TRUE) :
  unable to translate ' Le num<82>ro de s<82>rie du volume est 1451-5EA6' to a wide string
2: Dans grep(pattern, bfr, value = TRUE) : input string 2 is invalid
3: Dans grep(pattern, bfr, value = TRUE) :
  unable to translate ' R<82>pertoire de C:\Users\RoyO\AppData\Local\R\cache\R\R.cache' to a wide string
4: Dans grep(pattern, bfr, value = TRUE) : input string 4 is invalid
5: Dans grep(pattern, bfr, value = TRUE) :
  unable to translate '               3 R<82>p(s)  46<ff>600<ff>630<ff>272 octets libres' to a wide string
6: Dans grep(pattern, bfr, value = TRUE) : input string 11 is invalid

It may be due to the fact that regexps are stricter in R 4,3,0
From the changelog:
Regular expression functions now check more thoroughly whether their inputs are valid strings (in their encoding, e.g. in UTF-8).

The performance of grep(), sub(), gsub() and strsplit() has been improved, particularly with perl = TRUE and fixed = TRUE. Use of useBytes = TRUE for performance reasons should no longer be needed and is discouraged: it may lead to incorrect results.

[olivroy]

Oh, actually the culprit code may be in R.utils

https://github.com/HenrikBengtsson/R.utils/blob/0382c2e4628f53e5ca9ef821484e28443b87cc2f/R/Sys.readlink2.R#L56

[olivroy]

Actually an issue in R.utils. See HenrikBengtsson/R.utils#152