Not sure what happened between 4.0.2 and -devel, but you are using C collation, which assumes 7-bit single-byte characters, to sort multi-byte 8-bit encoded characters, which looks a bit risky.
-pd > On 19 Jan 2021, at 10:10 , Thierry Onkelinx via R-devel > <r-devel@r-project.org> wrote: > > Dear all, > > My git2rdata package relies on a stable sorting. I've noticed that > some characters get a different position under R-devel under Windows > 10. This is why the unit test of my package only fail in this > combination > (https://cran.r-project.org/web/checks/check_results_git2rdata.html) > > Below is a minimal example to illustrate the problem. > > Best regards, > > Thierry > > data <- > readLines("https://raw.githubusercontent.com/ropensci/git2rdata/master/tests/testthat/test_b_special.R", > encoding = "UTF-8", n = 15) > eval(parse(text = paste(tail(data, -3), collapse = ""))) > ds$a <- enc2utf8(ds$a) > print(ds$a) # input > Sys.setlocale(locale = "C") > print(sort(ds$a)) # sorted > print(order(ds$a)) # order > print(sessionInfo()) > > # input > ## Win 10 R 4.0.2 > [1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t" "a\nb" > [8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\"" > [15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c" > [22] "\"NA\"" "'NA'" NA "é" "&" "à" "µ" > [29] "ç" "\200" "|" "#" "@" "$" > ## Win 10 R devel > [1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t" "a\nb" > [8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\"" > [15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c" > [22] "\"NA\"" "'NA'" NA "é" "&" "à" "µ" > [29] "ç" "\200" "|" "#" "@" "$" > ## Ubuntu 18.04 R 4.0.3 > [1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t" "a\nb" > [8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\"" > [15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c" > [22] "\"NA\"" "'NA'" NA "é" "&" "à" "µ" > [29] "ç" "€" "|" "#" "@" "$" > > # sorted > ## Win 10 R 4.0.2 > [1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$" > [8] "&" "'NA'" "'b" "'b'" "<U+00B5>" "<U+00E0>" "<U+00E7>" > [15] "<U+00E9>" "<U+20AC>" "@" "a" "a\t" "a\tb" "a\tb\tc" > [22] "a\n" "a\nb" "a\nb\nc" "a b" "a b c" "a\"" "a\"b" > [29] "a\"b\"c" "a'" "a'b" "a'b'c" "|" > ## Win 10 R devel > [1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$" > [8] "&" "'NA'" "'b" "'b'" "@" "a" "a\t" > [15] "a\tb" "a\tb\tc" "a\n" "a\nb" "a\nb\nc" "a b" "a b c" > [22] "a\"" "a\"b" "a\"b\"c" "a'" "a'b" "a'b'c" "|" > [29] "\200" "\265" "\340" "\347" "\351" > ## Ubuntu 18.04 R 4.0.3 > [1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$" > [8] "&" "'NA'" "'b" "'b'" "<U+00B5>" "<U+00E0>" "<U+00E7>" > [15] "<U+00E9>" "<U+20AC>" "@" "a" "a\t" "a\tb" "a\tb\tc" > [22] "a\n" "a\nb" "a\nb\nc" "a b" "a b c" "a\"" "a\"b" > [29] "a\"b\"c" "a'" "a'b" "a'b'c" "|" > > # order > ## Win 10 R 4.0.2 > [1] 5 9 22 13 15 32 34 26 23 18 20 28 27 29 25 30 33 1 6 3 4 10 7 8 2 > [26] 21 14 11 12 19 16 17 31 24 > ## Win 10 R devel > [1] 5 9 22 13 15 32 34 26 23 18 20 33 1 6 3 4 10 7 8 2 21 14 11 12 19 > [26] 16 17 31 30 28 27 29 25 24 > ## Ubuntu 18.04 R 4.0.3 > [1] 5 9 22 13 15 32 34 26 23 18 20 28 27 29 25 30 33 1 6 3 4 10 7 8 2 > [26] 21 14 11 12 19 16 17 31 24 > > R version 4.0.2 (2020-06-22) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 10 x64 (build 18363) > > Matrix products: default > > locale: > [1] C > system code page: 1252 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > loaded via a namespace (and not attached): > [1] compiler_4.0.2 fortunes_1.5-4 > > R Under development (unstable) (2021-01-13 r79826) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 10 x64 (build 18363) > > Matrix products: default > > locale: > [1] C > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > loaded via a namespace (and not attached): > [1] compiler_4.1.0 > > R version 4.0.3 (2020-10-10) > Platform: x86_64-pc-linux-gnu (64-bit) > Running under: Ubuntu 18.04.5 LTS > > Matrix products: default > BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.7.1 > LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.7.1 > > locale: > [1] LC_CTYPE=C LC_NUMERIC=C > [3] LC_TIME=C LC_COLLATE=C > [5] LC_MONETARY=C LC_MESSAGES=nl_BE.UTF-8 > [7] LC_PAPER=nl_BE.UTF-8 LC_NAME=C > [9] LC_ADDRESS=C LC_TELEPHONE=C > [11] LC_MEASUREMENT=nl_BE.UTF-8 LC_IDENTIFICATION=C > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > loaded via a namespace (and not attached): > [1] compiler_4.0.3 fortunes_1.5-4 > > > ir. Thierry Onkelinx > Statisticus / Statistician > > Vlaamse Overheid / Government of Flanders > INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE > AND FOREST > Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance > thierry.onkel...@inbo.be > Havenlaan 88 bus 73, 1000 Brussel > www.inbo.be > > /////////////////////////////////////////////////////////////////////////////////////////// > To call in the statistician after the experiment is done may be no > more than asking him to perform a post-mortem examination: he may be > able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher > The plural of anecdote is not data. ~ Roger Brinner > The combination of some data and an aching desire for an answer does > not ensure that a reasonable answer can be extracted from a given body > of data. ~ John Tukey > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel