option_symlink {pkgmaker} | R Documentation |
option_symlink
creates a symbolic link to option x
.option_symlink
creates a symbolic link to option
x
.
is_option_symlink
tests if x
is a symbolic
link option.
option_symlink_target
returns the end target
option of a symbolic link option x
.
as.package_options
creates an object such as the
ones used to stores package specific options.
The method [[
is equivalent to options()
or
getOption(...)
: e.g. obj[[]]
returns the
list of options defined in obj
, and
obj[['abc']]
returns the value of option
'abc'
.
packageOptions
provides access to package specific
options from a given package that were defined with
setupPackageOptions
, and behaves as the base
function options
.
listPackageOptions
returns the names of all option
currently defined with setupPackageOptions
.
option_symlink(x) is_option_symlink(x, opts) option_symlink_target(x, opts) as.package_options(..., defaults = NULL) ## S3 method for class 'package_options' x[[...]] packageOptions(..., PACKAGE = packageName()) listPackageOptions()
opts |
a list of options |
x |
a character string, a list or an object of class
|
defaults |
|
... |
arguments passed to |
PACKAGE |
a package name |
a character vector (possibly empty).
listPackageOptions()