ianmcook commented on a change in pull request #9915:
URL: https://github.com/apache/arrow/pull/9915#discussion_r608237301
##########
File path: r/R/dplyr.R
##########
@@ -438,6 +440,48 @@ build_function_list <- function(FUN) {
)
}
+arrow_r_string_match_function <- function(FUN) {
+ function(pattern, x, ignore.case = FALSE, fixed = FALSE) {
+ if (ignore.case) {
+ # see the comments in the definition of `arrow_r_string_replace_function`
+ # below for an explanation of how this handles `ignore.case` and `fixed`
+ if (fixed) {
+ pattern <- gsub("\\E", "\\e", pattern, fixed = TRUE)
+ pattern <- paste0("(?i)\\Q", pattern, "\\E")
+ } else {
+ pattern <- paste0("(?i)", pattern)
+ }
+ }
+ FUN(
+ ifelse(fixed && !ignore.case, "match_substring",
"match_substring_regex"),
+ x,
+ options = list(pattern = pattern)
+ )
+ }
+}
+
+arrow_stringr_string_match_function <- function(FUN) {
+ function(string, pattern, negate = FALSE) {
+ browser()
Review comment:
Hah, yeah very much still `[WIP]`
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