instance method

OptionParser#abort

(?::_ToS mesg) -> bot

abort(mesg = $!)

# File tmp/rubies/ruby-4.0.0/lib/optparse.rb, line 1360
def abort(mesg = $!)
  super("#{program_name}: #{mesg}")
end

Shows message with the program name then aborts.

See also .with #accept .top #additional_message also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0