Method: CommandLine::OptionParser#parse_argv

Defined in:
lib/commandline/optionparser/optionparser.rb

#parse_argv(argv, &block) ⇒ Object

Seperates options from arguments Does not look for valid options ( or should it? )

%w(-fred file1 file2)    =>    ["-fred", ["file1", "file2"]]
%w(--fred -t -h xyz)     =>    ["--fred", []]   ["-t", []]   ["-h", ["xyz"]]
%w(-f=file)              =>    ["-f", ["file"]]
%w(--file=fred)          =>    ["--file", ["fred"]]
%w(-file=fred)           =>    ["-file", ["fred"]]
['-file="fred1 fred2"']  =>    ["-file", ["fred1", "fred2"]]



391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
 
# File 'lib/commandline/optionparser/optionparser.rb', line 391

def parse_argv(argv, &block)
  return parse_posix_argv(argv, &block) if @posix

  @not_parsed = []
  tagged      = []
  argv.each_with_index { |e,i|
    if "--" == e
      @not_parsed = argv[(i+1)..(argv.size+1)]
      break
    elsif "-" == e
      tagged << [:arg, e] 
    elsif ?- == e[0]  
      m = Option::GENERAL_OPT_EQ_ARG_RE.match(e)
      if m.nil?
        tagged << [:opt, e] 
      else
        tagged << [:opt, m[1]]
        tagged << [:arg, m[2]]
      end
    else
      tagged << [:arg, e]
    end
  }

  #
  # The tagged array has the form:
  #   [
  #    [:opt, "-a"], [:arg, "filea"], 
  #    [:opt, "-b"], [:arg, "fileb"], 
  #    #[:not_parsed, ["-z", "-y", "file", "file2", "-a", "-b"]]
  #   ]

  #
  # Now, combine any adjacent args such that
  #   [[:arg, "arg1"], [:arg, "arg2"]]
  # becomes
  #   [[:args, ["arg1", "arg2"]]]
  # and the final result should be
  #   [ "--file", ["arg1", "arg2"]]
  #

  parsed = []
  @args  = []
  tagged.each { |e|
    if :opt == e[0]
      parsed << [e[1], []]
    elsif :arg == e[0]
      if Array === parsed[-1] 
        parsed[-1][-1] += [e[1]]
      else
        @args << e[1]
      end
    else
      raise "How did we get here?"
    end
  }
  parsed.each { |e| block.call(e) }
end