dragosmg commented on code in PR #12589:
URL: https://github.com/apache/arrow/pull/12589#discussion_r850441613
##########
r/R/dplyr-funcs-datetime.R:
##########
@@ -372,3 +428,27 @@ binding_format_datetime <- function(x, format = "", tz =
"", usetz = FALSE) {
build_expr("strftime", x, options = list(format = format, locale =
Sys.getlocale("LC_TIME")))
}
+
+build_formats <- function(orders) {
+ year_chars <- sprintf("%%%s", c("y", "Y"))
+ month_chars <- sprintf("%%%s", c("m", "B", "b"))
+ day_chars <- sprintf("%%%s", c("d"))
+
+ outcome <- switch(
+ orders,
+ "ymd" = expand.grid(year_chars, month_chars, day_chars),
+ "ydm" = expand.grid(year_chars, day_chars, month_chars),
+ "mdy" = expand.grid(month_chars, day_chars, year_chars),
+ "myd" = expand.grid(month_chars, year_chars, day_chars),
+ "dmy" = expand.grid(day_chars, month_chars, year_chars),
+ "dym" = expand.grid(day_chars, year_chars, month_chars)
+ )
+ outcome$format <- paste(outcome$Var1, outcome$Var2, outcome$Var3, sep = "-")
+ outcome$format
+}
+
+instert_at_position <- function(string, positions, replacement) {
Review Comment:
Good catch! That was actually not used anywhere (leftover from a previous
attempt). Removed it
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