stringr (version 0.6.1)

invert_match: Switch location of matches to location of non-matches.

Description

Invert a matrix of match locations to match the opposite of what was previously matched.

Usage

invert_match(loc)

Arguments

loc
matrix of match locations, as from str_locate_all

Value

  • numeric match giving locations of non-matches

Examples

Run this code
numbers <- "1 and 2 and 4 and 456"
num_loc <- str_locate_all(numbers, "[0-9]+")[[1]]
str_sub(numbers, num_loc[, "start"], num_loc[, "end"])

text_loc <- invert_match(num_loc)
str_sub(numbers, text_loc[, "start"], text_loc[, "end"])

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