Top Level Namespace

Includes:
FileUtils

Defined Under Namespace

Modules: Enumerable, JSON, Kernel, Mack Classes: Class, Date, DateTime, Exception, JavascriptGenerator, Object, Range, Regexp, Struct, Symbol, Time

Instance Method Summary collapse

Instance Method Details

#go(s, args = ARGV) ⇒ Object

Parses the argument array args, according to the pattern s, to retrieve the single character command line options from it. If s is ‘xy:’ an option ‘-x’ without an option argument is searched, and an option ‘-y foo’ with an option argument (‘foo’).

An option hash is returned with all found options set to true or the found option argument.



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# File 'lib/gems/json_pure-1.1.3/bin/prettify_json.rb', line 15

def go(s, args = ARGV)
  b, v = s.scan(/(.)(:?)/).inject([{},{}]) { |t,(o,a)|
    t[a.empty? ? 0 : 1][o] = a.empty? ? false : nil
    t
  }
  while a = args.shift
    a !~ /\A-(.+)/ and args.unshift a and break
    p = $1
    until p == ''
      o = p.slice!(0, 1)
      if v.key?(o)
        v[o] = if p == '' then args.shift or break 1 else p end
        break
      elsif b.key?(o)
        b[o] = true
      else
        args.unshift a
        break 1
      end
    end and break
  end
  b.merge(v)
end