[R] [FORGED] Re: paste workable code to R 4.0.0 cause error

[Rolf Turner]

The (excellent) MWE that you provided runs just fine for me (in R 4.0.0 
under Ubuntu 18.04) either by sourcing "aaa.R" or by using copy-and-paste.

Must be Windoze thing.  Switch to Linux!

cheers,

Rolf Turner

n 29/04/20 2:25 pm, Jinsong Zhao wrote:
> On 2020/4/29 8:05, Jinsong Zhao wrote:
>> Hi there,
>>
>> I have a piece of source code with some inline comments in Chinese. It 
>> works well when I copy it from a editor (gvim here), and paste it to 
>> Rgui console on R 3.6.3, however, when I do the same thing, R 4.0.0 
>> give error message:
>>
>> Error: invalid multibyte character in parser at line 21
>>
>> If I source() the code from Rgui console, it can run without any error.
>>
>> Any hints?
>>
>> BTW, I do not make a minimal workable example yet.
>>
> 
> Here is the MWE:
> 
> D:\system\Desktop>cat aaa.R
> gz <- data.frame(x1 = rnorm(100), x10 = rnorm(100))
> gz <- within(gz,
>                {
>                   a <- x1      #a中中中中中中中
>                   bbbbb <- x10 #b中中中a中中中中
>                   ccccc <- x10 #c中中中中中中中中
>                   ddddd <- x10 #d中中中中中b中中中中
>                   eeeee <- x10 #e中中中中中中中中
>                   fffff <- x10 #f中中中中中c
>                })
> 
> The ASCII character in the code could be replace by other ASCII 
> character. The Chinese character could be replace by other Chinese 
> character.
> 
> Calling source("aaa.R") could run normally. If you select all the code 
> and paste it to Rgui console, it will give error:
> 
>  > gz <- data.frame(x1 = rnorm(100), x10 = rnorm(100))
>  > gz <- within(gz,
> +               {
> +                  a <- x1      #a中中中中中中中
> +                  bbbbb <- x10 #b中中中a中中中中
> +                  ccccc <- x10 #c中中中中中中中中
> +                  ddddd <- x10 #d中中中中中b中中中中
> +                  eeeee <- x10 #e中中中中中中中中
> +                  fffff <- x10 #f中中中中中c
> Error: invalid multibyte character in parser at line 9
>  >               })
> Error: unexpected '}' in "              }"
>  >
> 
> If you delete any character from the comment, or add any character to 
> the comment. The code can paste to the console without any error.
> 
> If you change the length of `bbbbb`...`fffff`, the code also could be 
> paste and run without any error.
> 
> Best,
> Jinsong


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