ggplot2 fails to find UTF-8 variable names on non-UTF-8 Windows

[yutannihilation]

(Originally reported on #2665)

This works with CRAN version of ggplot2, but won't with GitHub version. This seems a regression introduced by tidyeval (https://github.com/r-lib/rlang/issues/538).

readr::read_*() encode the colnames as UTF-8, so I'm afraid there will be quite a few Windows users that see this problem. Could you consider fixing this on rlang's side before the release of ggplot2 2.3.0?

library(ggplot2)

d <- tibble::tibble(
  忍 = c(1, 1, 2, 2),
  者 = c(1, 2, 1, 2)
)

tmp <- tempfile(fileext = ".csv")
readr::write_csv(d, tmp)
invisible(
  d <- readr::read_csv(tmp)
)
#> Parsed with column specification:
#> cols(
#>   忍 = col_integer(),
#>   者 = col_integer()
#> )

Encoding(names(d))
#> [1] "UTF-8" "UTF-8"

ggplot(d, aes(忍, 者)) +
  geom_point()
#> Error in FUN(X[[i]], ...): object '忍' not found

Created on 2018-05-28 by the reprex package (v0.2.0).

Session info

``` r devtools::session_info() #> ─ Session info ────────────────────────────────────────────────────────── #> setting value #> version R version 3.5.0 (2018-04-23) #> os Windows 10 x64 #> system x86_64, mingw32 #> ui RTerm #> language (EN) #> collate Japanese_Japan.932 #> tz Asia/Tokyo #> date 2018-05-28 #> #> ─ Packages ────────────────────────────────────────────────────────────── #> package * version date source #> assertthat 0.2.0 2017-04-11 CRAN (R 3.5.0) #> backports 1.1.2 2017-12-13 CRAN (R 3.5.0) #> bindr 0.1.1 2018-03-13 CRAN (R 3.5.0) #> bindrcpp 0.2.2 2018-03-29 CRAN (R 3.5.0) #> callr 2.0.4 2018-05-15 CRAN (R 3.5.0) #> cli 1.0.0 2017-11-05 CRAN (R 3.5.0) #> clisymbols 1.2.0 2017-05-21 CRAN (R 3.5.0) #> colorspace 1.3-2 2016-12-14 CRAN (R 3.5.0) #> crayon 1.3.4 2017-09-16 CRAN (R 3.5.0) #> curl 3.2 2018-03-28 CRAN (R 3.5.0) #> debugme 1.1.0 2017-10-22 CRAN (R 3.5.0) #> desc 1.2.0 2018-05-01 CRAN (R 3.5.0) #> devtools 1.13.5.9000 2018-05-17 Github (r-lib/devtools@13ee56b) #> digest 0.6.15 2018-01-28 CRAN (R 3.5.0) #> dplyr 0.7.5 2018-05-19 CRAN (R 3.5.0) #> evaluate 0.10.1 2017-06-24 CRAN (R 3.5.0) #> ggplot2 * 2.2.1.9000 2018-05-27 Github (tidyverse/ggplot2@1f9ef73) #> glue 1.2.0 2017-10-29 CRAN (R 3.5.0) #> gtable 0.2.0 2016-02-26 CRAN (R 3.5.0) #> hms 0.4.2 2018-03-10 CRAN (R 3.5.0) #> htmltools 0.3.6 2017-04-28 CRAN (R 3.5.0) #> httr 1.3.1 2017-08-20 CRAN (R 3.5.0) #> knitr 1.20.2 2018-05-10 local #> lazyeval 0.2.1 2017-10-29 CRAN (R 3.5.0) #> magrittr 1.5 2014-11-22 CRAN (R 3.5.0) #> memoise 1.1.0 2017-04-21 CRAN (R 3.5.0) #> mime 0.5 2016-07-07 CRAN (R 3.5.0) #> munsell 0.4.3 2016-02-13 CRAN (R 3.5.0) #> pillar 1.2.3 2018-05-25 CRAN (R 3.5.0) #> pkgbuild 1.0.0 2018-05-17 Github (r-lib/pkgbuild@0457039) #> pkgconfig 2.0.1 2017-03-21 CRAN (R 3.5.0) #> pkgload 1.0.0 2018-05-17 Github (r-lib/pkgload@35efedd) #> plyr 1.8.4 2016-06-08 CRAN (R 3.5.0) #> processx 3.1.0 2018-05-15 CRAN (R 3.5.0) #> purrr 0.2.4 2017-10-18 CRAN (R 3.5.0) #> R6 2.2.2 2017-06-17 CRAN (R 3.5.0) #> Rcpp 0.12.17 2018-05-18 CRAN (R 3.5.0) #> readr 1.1.1 2017-05-16 CRAN (R 3.5.0) #> rlang 0.2.0.9001 2018-05-27 Github (tidyverse/rlang@88ac600) #> rmarkdown 1.9 2018-03-01 CRAN (R 3.5.0) #> rprojroot 1.3-2 2018-01-03 CRAN (R 3.5.0) #> scales 0.5.0.9000 2018-05-27 Github (hadley/scales@d767915) #> sessioninfo 1.0.0 2017-06-21 CRAN (R 3.5.0) #> stringi 1.2.2 2018-05-02 CRAN (R 3.5.0) #> stringr 1.3.1 2018-05-10 CRAN (R 3.5.0) #> testthat 2.0.0 2017-12-13 CRAN (R 3.5.0) #> tibble 1.4.2 2018-01-22 CRAN (R 3.5.0) #> tidyselect 0.2.4 2018-02-26 CRAN (R 3.5.0) #> usethis 1.3.0 2018-02-24 CRAN (R 3.5.0) #> withr 2.1.2 2018-05-27 Github (jimhester/withr@70d6321) #> xml2 1.2.0 2018-01-24 CRAN (R 3.5.0) #> yaml 2.1.19 2018-05-01 CRAN (R 3.5.0) ```

[hadley]

Closing, since I continued the conversation in the original issue; sorry!

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