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...omas, Sorry for the delayed response. I have tested the problem on the latest R-devel build (2018-04-27 r74651), and it still exists. RGui is always fine with Chinese characters, but some IDEs rely on the CLI version of R (e.g. Visual Studio Code with R plugin). >Your example print("ABC\u4f60\u597dDEF") is printing two Chinese characters, right? Yes. U+4F60, U+597D or C4E3, BAC3 in CP936. >Could you reproduce the problem with printing just one of the characters, say print("ABC\u4f60DEF") ? Yes. The console output is pasted in [ https://paste.ubuntu.com/p/TYgZWhdgXK/ ]...

...hinese characters in the startup banner are missing 3. > Sys.getlocale() [1] "LC_COLLATE=Chinese (Simplified)_China.936;LC_CTYPE=Chinese (Simplified) _China.936;LC_MONETARY=Chinese (Simplified)_China.936;LC_NUMERIC=C;LC_ TIME=Chinese (Simplified)_China.936" 4. > print("ABC\u4f60\u597dDEF") [1] "ABCDEF" (Unicode code points for "???") 5. Use Microsoft Pinyin IME to type "???" into the console. An error message appeared: > invalid multibyte character in mbcs_get_next Then the program crashed. My debugger reported a heap corruption, disp...

...rry for the delayed response. I have tested the problem on the latest R-devel build (2018-04-27 r74651), and it still exists. RGui is always fine with Chinese characters, but some IDEs rely on the CLI version of R (e.g. Visual Studio Code with R plugin). > >> Your example print("ABC\u4f60\u597dDEF") is printing two Chinese characters, right? > Yes. U+4F60, U+597D or C4E3, BAC3 in CP936. > >> Could you reproduce the problem with printing just one of the characters, say print("ABC\u4f60DEF") ? > Yes. The console output is pasted in [ https://paste.ubuntu....

...e what is going wrong, we may have to rely on your help to debug this (I do not have a system to reproduce on). A user-targeted advice would be to use RGui (Rgui.exe). Does the problem also exist in R-devel? https://cran.r-project.org/bin/windows/base/rdevel.html Your example? print("ABC\u4f60\u597dDEF") is printing two Chinese characters, right? The first one is C4E3 in CP936 (4F60 in Unicode) and the second one is BAC3 in CP936 (597D in Unicode)? Could you reproduce the problem with printing just one of the characters, say print("ABC\u4f60DEF") ? As a sanity check -...

...I 4f20: 30 49 45 49 54 45 49 54 56 86 5c 2e 5f 54 5a 5f 0IEITEITV.\._TZ_ 4f30: 54 5a 30 30 0a 80 86 5c 2e 5f 54 5a 5f 54 5a 30 TZ00...\._TZ_TZ0 4f40: 31 0a 80 a0 0c 5b 12 54 4e 4f 54 00 54 4e 4f 54 1....[.TNOT.TNOT 4f50: 14 34 5f 4c 30 36 00 a0 2d 90 5c 2f 04 5f 53 42 .4_L06..-.\/._SB 4f60: 5f 50 43 49 30 47 46 58 30 47 53 53 45 92 47 53 _PCI0GFX0GSSE.GS 4f70: 4d 49 5c 2f 04 5f 53 42 5f 50 43 49 30 47 46 58 MI\/._SB_PCI0GFX 4f80: 30 47 53 43 49 14 1c 5f 4c 30 37 00 70 0a 20 5c 0GSCI.._L07.p. \ 4f90: 2f 04 5f 53 42 5f 50 43 49 30 53 42 55 53 48 53 /._SB_PCI0SBUSHS 4fa0: 54...