ianmcook commented on a change in pull request #10190:
URL: https://github.com/apache/arrow/pull/10190#discussion_r626005997
##########
File path: r/R/dplyr.R
##########
@@ -540,6 +542,31 @@ arrow_stringr_string_replace_function <- function(FUN,
max_replacements) {
}
}
+arrow_r_string_split_function <- function(FUN, reverse = FALSE, max_splits =
-1){
+ function(x, split, fixed = FALSE, perl = FALSE, useBytes = FALSE){
+
+ assert_that(length(split) == 1)
Review comment:
There's a handy function `assertthat::is.string()` that arrow imports
that would be perfect here:
```suggestion
assert_that(is.string(split))
```
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