regfetch: Finds an entry in a registry.

Description

This function provides extra control on how entries are queried from a registry object.

Usage

regfetch(
  regobj,
  ...,
  all = FALSE,
  error = TRUE,
  exact = FALSE,
  KEYS = NULL,
  verbose = FALSE,
  entry = FALSE,
  msg = NULL
)
pkgreg_fetch(regname, ..., msg = NULL, where = topenv(parent.frame()))
pkgreg_remove(
  regname,
  ...,
  msg = NULL,
  where = topenv(parent.frame()),
  quiet = FALSE
)

Value

regfetch returns a registry entry.

Arguments

regobj: a registry object
...: key value(s) to look up. If multiple indexes are used, then the primary key should come first.
all: logical to indicate if hidden keys (starting with a '.') should be returned and output in message.
error: a logical that indicates if an error should be thrown if the key has no match or multiple matches
exact: a logical that indicates if matching should be exact or partial. Note that if exact matches exist then they are returned, independently of the value of exact.
KEYS: alternative way of passing the key value(s). If not missing, then arguments in ... are discarded.
verbose: a logical that indicates if verbosity should be toggle on
entry: a logical that indicates if the
msg: a header to use in case of error.
regname: Name of a sub-registry, used as its identifier.
where: package name or namespace that owns the registry.
quiet: a logical that indicates if the operation should be performed quietly, without throwing errors or warnings.

Functions

pkgreg_fetch(): fetches entries in a package registry, as set up by setPackageRegistry.

It loads the requested package registry and uses regfetch to retrieve data from it.
pkgreg_remove(): removes an entry from a package registry.