when specifying n_max argument, the last line of the CSV file is not imported.

[hidekoji]

readr: version 2.0.2

I have a CSV file (https://www.dropbox.com/s/uk79hnrqs9rm9hq/test1.csv?dl=1) that looks like this.

user_number, user_extract_way
1935, 2021/04/01 - 2021/04/05
user, service_id
aaaa, bbbb

if I set n_max parameter as 5 when using reader::read_csv, it does not import the last row and only shows 2 lines.

readr::read_delim("https://www.dropbox.com/s/uk79hnrqs9rm9hq/test1.csv?dl=1", delim = ",", quote = "\"", col_names = T, na = c('','NA'), n_max = 5)
#> Rows: 2 Columns: 2
#> ── Column specification ────────────────────────────────────────────────────────
#> Delimiter: ","
#> chr (2): user_number,  user_extract_way
#> 
#> ℹ Use `spec()` to retrieve the full column specification for this data.
#> ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.
#> # A tibble: 2 × 2
#>   user_number ` user_extract_way`       
#>   <chr>       <chr>                     
#> 1 1935        " 2021/04/01 - 2021/04/05"
#> 2 user        " service_id"

^{Created on 2021-11-01 by the reprex package (v2.0.1)}

It imports all if I don't specify the n_max argument. (see the below reprex that shows 3rd line as expected)

readr::read_delim("https://www.dropbox.com/s/uk79hnrqs9rm9hq/test1.csv?dl=1", delim = ",", quote = "\"", col_names = T, na = c('','NA'))
#> Rows: 3 Columns: 2
#> ── Column specification ────────────────────────────────────────────────────────
#> Delimiter: ","
#> chr (2): user_number,  user_extract_way
#> 
#> ℹ Use `spec()` to retrieve the full column specification for this data.
#> ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.
#> # A tibble: 3 × 2
#>   user_number ` user_extract_way`       
#>   <chr>       <chr>                     
#> 1 1935        " 2021/04/01 - 2021/04/05"
#> 2 user        " service_id"             
#> 3 aaaa        " bbbb"

^{Created on 2021-11-01 by the reprex package (v2.0.1)}

sessionInfo()
#> R version 4.1.0 (2021-05-18)
#> Platform: x86_64-apple-darwin17.0 (64-bit)
#> Running under: macOS Big Sur 10.16
#> 
#> Matrix products: default
#> BLAS:   /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRblas.dylib
#> LAPACK: /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRlapack.dylib
#> 
#> locale:
#> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
#> 
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> 
#> loaded via a namespace (and not attached):
#>  [1] digest_0.6.28   withr_2.4.2     magrittr_2.0.1  reprex_2.0.1   
#>  [5] evaluate_0.14   highr_0.9       stringi_1.7.5   rlang_0.4.12   
#>  [9] cli_3.1.0       rstudioapi_0.13 fs_1.5.0        rmarkdown_2.11 
#> [13] tools_4.1.0     stringr_1.4.0   glue_1.4.2      xfun_0.27      
#> [17] yaml_2.2.1      fastmap_1.1.0   compiler_4.1.0  htmltools_0.5.2
#> [21] knitr_1.36

^{Created on 2021-11-01 by the reprex package (v2.0.1)}

[jimhester]

Thank you for opening the issue and for supplying a reproducible example, it is a big help!

This should be fixed in the next released version of vroom.