Hello, I do not have an account on R Bugzilla, so I will post my bug report here. I want to report a very old bug in base R *source()* function. It relates to sourcing some R scripts in UTF-8 encoding on Windows machines. For some reason if the UTF-8 script is containing cyrillic letter *"я"*, the script execution is interrupted directly on this letter (btw the same scripts are sourcing fine when they are encoded in the systems CP1251 encoding).
Let's consider the following script that prints random russian words: > > > *print("Осень")print("Ёжик")print("трясина")print("тест")* When this script is sourced we get INCOMPLETE_STRING error: > > > > > *source('D:/R code/test_cyr_letter.R', encoding = 'UTF-8', echo=TRUE)Error > in source("D:/R code/test_cyr_letter.R", encoding = "UTF-8", echo = TRUE) > : D:/R code/test_cyr_letter.R:3:7: unexpected INCOMPLETE_STRING2: > print("Ёжик")3: print("тр ^* Note that this bug is not triggered when the same file is executed using *eval(parse(...))*: > > > > *> eval(parse('D:/R code/test_cyr_letter.R', encoding="UTF-8"))[1] > "Осень"[1] "Ёжик"[1] "трясина"[1] "тест"* I made some reserach and noticed that *source* and *parse* functions have similar parts of code for reading files. After analyzing code of *source()* function I found out that commenting one line from it fixes this bug and the overrided function works fine. See this part of *source()* function code: *... * > > *filename <- file* > > * file <- file(filename, "r")* > > * # on.exit(close(file)) #### COMMENT THIS LINE ####* > > * if (isTRUE(keep.source)) {* > > * lines <- scan(file, what="character", encoding = encoding, sep >> = "\n")* > > * on.exit()* > > * close(file)* > > * srcfile <- srcfilecopy(filename, lines, >> file.mtime(filename)[1], * > > * isFile = TRUE)* > > * } * > > *...* > > I do not fully understand this weird behaviour, so I ask help of R Core developers to fix this annoying bug that prevents using unicode scripts with cyrillic on Windows. Maybe you should make that part of *source()* function read files like *parse()* function? *Session and encoding info:* > > sessionInfo() > R version 3.4.1 (2017-06-30) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > Matrix products: default > locale: > [1] LC_COLLATE=Russian_Russia.1251 LC_CTYPE=Russian_Russia.1251 > LC_MONETARY=Russian_Russia.1251 > [4] LC_NUMERIC=C LC_TIME=Russian_Russia.1251 > attached base packages: > [1] stats graphics grDevices utils datasets methods base > loaded via a namespace (and not attached): > [1] compiler_3.4.1 tools_3.4.1 > > l10n_info() > $MBCS > [1] FALSE > $`UTF-8` > [1] FALSE > $`Latin-1` > [1] FALSE > $codepage > [1] 1251 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel