strex offers easy and/or versions of
stringr::str_detect() via str_detect_all() and
str_detect_any(). These are vectorized over
string but not pattern.
stringr::fixed() and stringr::coll()) are
handled correctly. Otherwise, stringr regular expressions
are used. For str_detect_all(), a pattern argument
c("x", "y") is converted to "(?=.*x)(?=.*y)".
For str_detect_any(), a pattern argument
c("x", "y") is converted to "x|y".
str_detect_all("quick brown fox", c("x", "y", "z"))
#> [1] FALSE
str_detect_all(c(".", "-"), ".")
#> [1] TRUE TRUE
str_detect_all(c(".", "-"), coll("."))
#> [1] TRUE FALSE
str_detect_all(c(".", "-"), coll("."), negate = TRUE)
#> [1] FALSE TRUE
str_detect_all(c(".", "-"), c(".", ":"))
#> [1] FALSE FALSE
str_detect_all(c(".", "-"), coll(c(".", ":")))
#> [1] FALSE FALSE
str_detect_all("xyzabc", c("a", "c", "z"))
#> [1] TRUE
str_detect_all(c("xyzabc", "abcxyz"), c(".b", "^x"))
#> [1] TRUE FALSE
str_detect_any("quick brown fox", c("x", "y", "z"))
#> [1] TRUE
str_detect_any(c(".", "-"), ".")
#> [1] TRUE TRUE
str_detect_any(c(".", "-"), coll("."))
#> [1] TRUE FALSE
str_detect_any(c(".", "-"), coll("."), negate = TRUE)
#> [1] FALSE TRUE
str_detect_any(c(".", "-"), c(".", ":"))
#> [1] TRUE TRUE
str_detect_any(c(".", "-"), coll(c(".", ":")))
#> [1] TRUE FALSE
str_detect_any(c("xyzabc", "abcxyz"), c(".b", "^x"))
#> [1] TRUE TRUEUnless you’re doing a huge amount of computation, it won’t matter,
but FWIW, it’s faster to convert to regex using
str_escape() rather than using coll().
bench::mark(
str_detect_all(rep("*", 1000), rep(str_escape("*"), 555)),
str_detect_all(rep("*", 1000), coll(rep("*", 555))),
min_iterations = 100
)
#> # A tibble: 2 × 6
#> expression min median `itr/sec` mem_alloc `gc/sec`
#> <bch:expr> <bch> <bch:> <dbl> <bch:byt> <dbl>
#> 1 "str_detect_all(rep(\"*\", 1000), r… 513ms 514ms 1.94 162.12KB 0.0196
#> 2 "str_detect_all(rep(\"*\", 1000), c… 265ms 266ms 3.68 4.31MB 0.364