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join the matched parts into string
reg_join(x, pattern, sep = "")
character
regex pattern
separator
reg_join(c("A_12.B", "C_3.23:2"), "[A-Za-z]+") reg_join(c("A_12.B", "C_3.23:2"), "\\w+") reg_join(c("A_12.B", "C_3.23:2"), "\\d+", sep = ",") reg_join(c("A_12.B", "C_3.23:2"), "\\d", sep = ",")
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