Checks if all values match regular expression using
all(grepl(regexp, x[!is.na(x)]))
Arguments
- x
The object to check.
- regexp
A string of a regular expression.
- x_name
A string of the name of object x or NULL.
Value
The chk_ function throws an informative error if the test fails or
returns the original object if successful so it can used in pipes.
The vld_ function returns a flag indicating whether the test was met.
See also
Other chk_misc:
chk_length(),
chk_missing(),
chk_named(),
chk_not_any_na(),
chk_not_empty(),
chk_not_missing(),
chk_sorted(),
chk_unique(),
chk_valid_name()
Examples
# chk_match
chk_match("1")
try(chk_match("1", regexp = "2"))
#> Error in eval(expr, envir, enclos) :
#> `"1"` must match regular expression '2'.
# vld_match
vld_match("1")
#> [1] TRUE
vld_match("a", regexp = "a")
#> [1] TRUE
vld_match("")
#> [1] FALSE
vld_match("1", regexp = "2")
#> [1] FALSE
vld_match(NA_character_, regexp = ".*")
#> [1] TRUE