[R-pkg-devel] "found non-ASCII strings" with save(version = 2)

[Vincent Arel-Bundock]

Unsurprisingly, this was due to user error. I found the fix.

Sorry for the email clutter.

vab

On Wed, Feb 5, 2020, at 08:32, Vincent Arel-Bundock wrote:
> Hi everyone,
> 
> My `countrycode` package ships with two data frames of characters in 
> several languages: codelist and codelist_panel.
> 
> I converted all strings to UTF-8 using the `enc2utf8` function, but I 
> also tried several other ways, with the stringi package, etc. As far as 
> I can tell, the strings are all in UTF-8 format now:
> 
> url <- 
> 'https://github.com/vincentarelbundock/countrycode/raw/master/data/codelist.rda'
> temp <- tempfile()
> download.file(url, temp)
> load(temp)
> tmp <- codelist[, sapply(codelist, is.character)]
> library(stringi)
> all(unlist(lapply(tmp, function(x) stri_enc_isutf8((na.omit(x))))))
> [1] TRUE
> 
> After encoding, I saved the data frames with this command:
> 
> save(codelist, file = 'data/codelist.rda', compress = 'xz', version = 2)
> 
> Yet, when I run R CMD check, I get the following warning:
> 
> checking data for non-ASCII characters ... WARNING
>     Warning: found non-ASCII strings
>     'W<c3><bc>rtemberg' in object 'codelist'
>     'S<c3><a3>o Tom<c3><a9> and Pr<c3><ad>ncipe' in object 'codelist'
>     'W<c3><bc>rtemberg' in object 'codelist_panel'
>     'S<c3><a3>o Tom<c3><a9> and Pr<c3><ad>ncipe' in object 'codelist_panel'
> 
> This warning disappears if I save the data frames using `save(version = 
> 3)`. However, I would prefer to use version 2 to keep compatibility 
> with older versions of R.
> 
> Does anyone have suggestions for how to handle this? What did I miss?
> 
> Thanks a lot for your time!
> 
> Vincent
> 
> --
> Vincent Arel-Bundock
> 
> Professeur agrégé / Associate professor
> http://arelbundock.com
> Université de Montréal, Science politique
> 3150 rue Jean-Brillant, Pav. Lionel-Groulx, C-4020
> Montréal, Québec, Canada, H3T 1N8

-- 
Vincent Arel-Bundock

Professeur agrégé / Associate professor
http://arelbundock.com
Université de Montréal, Science politique
3150 rue Jean-Brillant, Pav. Lionel-Groulx, C-4020
Montréal, Québec, Canada, H3T 1N8