assert_all_are_empty_character
Does the input contain empty or missing strings?
Checks for empty or missing strings.
Usage
assert_all_are_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_all_are_non_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_non_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_all_are_missing_or_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_missing_or_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_all_are_non_missing_nor_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_non_missing_nor_empty_character(x, severity = getOption("assertive.severity", "stop"))
assert_all_strings_are_not_missing_nor_empty(x, severity = getOption("assertive.severity", "stop"))
assert_any_strings_are_not_missing_nor_empty(x, severity = getOption("assertive.severity", "stop"))
assert_is_an_empty_string(x, severity = getOption("assertive.severity", "stop"))
assert_is_a_non_empty_string(x, severity = getOption("assertive.severity", "stop"))
assert_is_a_missing_or_empty_string(x, severity = getOption("assertive.severity", "stop"))
assert_is_a_non_missing_nor_empty_string(x, severity = getOption("assertive.severity", "stop"))
is_empty_character(x, .xname = get_name_in_parent(x))
is_non_empty_character(x, .xname = get_name_in_parent(x))
is_missing_or_empty_character(x, .xname = get_name_in_parent(x))
is_non_missing_nor_empty_character(x, .xname = get_name_in_parent(x))
is_not_missing_nor_empty_character(x)
is_an_empty_string(x, .xname = get_name_in_parent(x))
is_a_non_empty_string(x, .xname = get_name_in_parent(x))
is_a_missing_or_empty_string(x, .xname = get_name_in_parent(x))
is_a_non_missing_nor_empty_string(x, .xname = get_name_in_parent(x))
Arguments
- x
- A character vector.
- severity
- How severe should the consequences of the assertion be?
Either
"stop"
,"warning"
,"message"
, or"none"
. - .xname
- Not intended to be used directly.
Value
-
The
is_*
functions return logical vectors for strings which
are (non) empty or missing, and the assert_*
functions throw errors
on failure.
Note
In R, NA_character_
is considered to be a non-empty string
(at least by nzchar
), which is why many functions are
needed to to clarify the situation.
See Also
Examples
library(assertive.strings)
# These functions return a vector:
x <- c("", "a", NA)
is_empty_character(x)
is_non_empty_character(x)
is_missing_or_empty_character(x)
is_non_missing_nor_empty_character(x)
# These functions return a single value:
is_an_empty_string("")
is_an_empty_string("a")
is_an_empty_string(NA_character_)
is_a_non_empty_string("")
is_a_non_empty_string("a")
is_a_non_empty_string(NA_character_)
is_a_missing_or_empty_string("")
is_a_missing_or_empty_string("a")
is_a_missing_or_empty_string(NA_character_)
is_a_non_missing_nor_empty_string("")
is_a_non_missing_nor_empty_string("a")
is_a_non_missing_nor_empty_string(NA_character_)
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