[Rd] How to get utf8 string using R externals

[Ben Bolker]

   Might the new UCRT build help?

https://developer.r-project.org/Blog/public/2021/03/12/windows/utf-8-toolchain-and-cran-package-checks/

On 6/2/21 5:36 PM, Ben Bolker wrote:
> 
> 
> On 6/2/21 5:31 PM, Duncan Murdoch wrote:
>> On 02/06/2021 4:33 p.m., xiaoyan yu wrote:
>>> I have a R Script Predict.R:
>>>      set.seed(42)
>>>      C <- seq(1:1000)
>>>      A <- rep(seq(1:200),5)
>>>      E <- (seq(1:1000) * (0.8 + (0.4*runif(50, 0, 1))))
>>>      L <- ifelse(runif(1000)>.5,1,0)
>>>      df <- data.frame(cbind(C, A, E, L))
>>> load("C:/Temp/tree.RData")                #  load the model for scoring
>>>
>>>    P <- as.character(predict(tree_model_1,df,type='class'))
>>>
>>> Then in a C++ program
>>> I call eval to evaluate the script and then findVar the P variable.
>>> After get each class label from P using string_elt and then
>>> Rf_translateChar, the characters are unicodes (<U+BD80><U+C2E4>) 
>>> instead of
>>> utf8 encoding of the korean characters 부실.
>>> Can I know how to get UTF8 by using R externals?
>>>
>>> I also found the same script giving utf8 characters in RGui but 
>>> unicode in
>>> Rterm.
>>> I tried to attach a screenshot but got message "The message's content 
>>> type
>>> was not explicitly allowed"
>>> In RGui, I saw the output 부실, while in Rterm, <U+BD80><U+C2E4>.
>>
>> Sounds like you're using Windows.  Stop doing that.
>>
>> Duncan Murdoch
> 
> 
>    Shouldn't there be a smiley there somewhere?
>