R/utils.R

In bbk: Client for the Deutsche Bundesbank and European Central Bank APIs

`%||%` <- function(x, y) {
  if (is.null(x)) y else x
}

is_installed <- function(pkg) {
  isTRUE(requireNamespace(pkg, quietly = TRUE))
}

as_tibble <- function(x) {
  if (getOption("bbk.use_tibble", TRUE) && is_installed("tibble")) {
    tibble::as_tibble(x)
  } else {
    x
  }
}

parse_date <- function(date, freq) {
  switch(freq,
    daily = as.Date(date),
    monthly = as.Date(paste0(date, "-01")),
    annual = as.integer(date),
    date
  )
}

na_if_empty <- function(x, empty = "") {
  replace(x, x == empty, NA_character_)
}

extract_metadata <- function(string, pattern, fixed = FALSE) {
  x <- grep(pattern, string, value = TRUE, fixed = fixed)
  if (length(x) > 0L) {
    strsplit(x, ",", fixed = TRUE)[[1L]][[2L]]
  } else {
    NA_character_
  }
}