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()
x |
a character string, a list or an object of class
|
opts |
a list of options |
... |
arguments passed to |
defaults |
|
PACKAGE |
a package name |
a character vector (possibly empty).
listPackageOptions()
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