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Returns a string representation of the syntax tree with the errors displayed inline.

Editline

ed-unassigned This editor command always results in an error.

GNU Readline

There is no corresponding macro.

Mark a command-line option as deprecated, and optionally specify a deprecation horizon.

Note that with the current implementation, every version of the option needs to be explicitly deprecated, so to deprecate an option defined as

add_option('-t', '--[no-]test', 'Set test mode') do |value, options|
  # ... stuff ...
end

you would need to explicitly add a call to ‘deprecate_option` for every version of the option you want to deprecate, like

deprecate_option('-t')
deprecate_option('--test')
deprecate_option('--no-test')

Merge a set of command options with the set of default options (without modifying the default option hash).

Handle the command arguments.

Is this dependency simply asking for the latest version of a gem?

Does this dependency match spec?

NOTE: This is not a convenience method. Unlike match? this method returns true when spec is a prerelease version even if this dependency is not a prerelease dependency.