Ensures that input appears to be a valid Wikidata id — tw_check

Mostly used internally by other functions.

Usage

tw_check_qid(id, logical_vector = FALSE, non_id_as_NA = FALSE)

Arguments

id: A character vector of one or more Wikidata id.
logical_vector: Logical, defaults to FALSE. If TRUE, returns a logical vector of the same length as input, where TRUE corresponds to seemingly meaningful Q identifiers.
non_id_as_NA: Logical, defaults to FALSE. If TRUE (and if logical_vector is set to FALSE), a vector of the same length is returned, with NA replacing items that are seemingly not meaningful Q identifiers.

Value

A character vector with only strings appearing to be Wikidata identifiers; possibly shorter than input

Examples


tw_check_qid(id = c("Q180099", "q228822", "Not an id", "00180099", NA, "Q5"))
#> [1] "Q180099" "Q228822" "Q5"     

tw_check_qid(
  id = c("Q180099", "q228822", "Not an id", "00180099", NA, "Q5"),
  logical_vector = TRUE
)
#> [1]  TRUE  TRUE FALSE FALSE FALSE  TRUE

tw_check_qid(
  id = c("Q180099", "q228822", "Not an id", "00180099", NA, "Q5"),
  non_id_as_NA = TRUE
)
#> [1] "Q180099" "Q228822" NA        NA        NA        "Q5"