ianmcook commented on a change in pull request #9915:
URL: https://github.com/apache/arrow/pull/9915#discussion_r608215826
##########
File path: r/R/dplyr.R
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@@ -520,6 +536,60 @@ arrow_stringr_string_replace_function <- function(FUN,
max_replacements) {
}
}
+# this function assigns definitions for the stringr pattern modifier functions
+# (fixed, regex, etc.) plus a required helper function (ensure_opts) in the
+# calling function's environment, where they are required to evaluate `pattern`
Review comment:
This is a bit exotic, I know. I can't think of any cleaner or more
concise way to assign these helper functions in both of the functions that need
them.
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