Extends command line arguments array (ARGV) to parse itself.
Substitution of getopts is possible as follows. Also see OptionParser#getopts.
def getopts(*args) ($OPT = ARGV.getopts(*args)).each do |opt, val| eval "$OPT_#{opt.gsub(/[^A-Za-z0-9_]/, '_')} = val" end rescue OptionParser::ParseError end
# File optparse.rb, line 1787
def getopts(*args)
options.getopts(self, *args)
end
Actual OptionParser object, automatically created if nonexistent.
If called with a block, yields the OptionParser object and returns the result of the block. If an OptionParser::ParseError exception occurs in the block, it is rescued, a error message printed to STDERR and nil returned.
# File optparse.rb, line 1746
def options
@optparse ||= OptionParser.new
@optparse.default_argv = self
block_given? or return @optparse
begin
yield @optparse
rescue ParseError
@optparse.warn $!
nil
end
end
Sets OptionParser object, when opt is false or nil, methods OptionParser::Arguable#options and OptionParser::Arguable#options= are undefined. Thus, there is no ways to access the OptionParser object via the receiver object.
# File optparse.rb, line 1729
def options=(opt)
unless @optparse = opt
class << self
undef_method(:options)
undef_method(:options=)
end
end
end
Parses self destructively in order and returns self containing the rest arguments left unparsed.
# File optparse.rb, line 1762
def order!(&blk) options.order!(self, &blk) end