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instance method
OptionParser::List#prepend
prepend(*args)
lib/optparse.rb
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# File tmp/rubies/ruby-3.2.0/lib/optparse.rb, line 885
def prepend(*args)
update(*args)
@list.unshift(args[0])
end
Inserts switch at the head of the list, and associates short, long and negated long options. Arguments are:
switch-
OptionParser::Switchinstance to be inserted. short_opts-
Listof short style options. long_opts-
Listof long style options. nolong_opts-
Listof long style options with “no-” prefix.
Example
prepend(switch, short_opts, long_opts, nolong_opts)