Class: Benry::CmdOpt::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/benry/cmdopt.rb

Instance Method Summary collapse

Constructor Details

#initialize(schema) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/benry/cmdopt.rb', line 530

def initialize(schema)
  @schema = schema
end

Instance Method Details

#_error(msg) ⇒ Object 



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# File 'lib/benry/cmdopt.rb', line 570

def _error(msg)
  return OptionError.new(msg)
end

#parse(argv, all: true, &error_handler) ⇒ Object 



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# File 'lib/benry/cmdopt.rb', line 534

def parse(argv, all: true, &error_handler)
  optdict = new_options_dict()
  index = 0
  while index < argv.length
    #; [!5s5b6] treats '-' as an argument, not an option.
    if argv[index] =~ /\A-/ && argv[index] != "-"
      optstr = argv.delete_at(index)
    #; [!q8356] parses options even after arguments when `all: true`.
    elsif all
      index += 1
      next
    #; [!ryra3] doesn't parse options after arguments when `all: false`.
    else
      break
    end
    #; [!y04um] skips rest options when '--' found in argv.
    if optstr == '--'
      break
    elsif optstr =~ /\A--/
      #; [!uh7j8] parses long options.
      parse_long_option(optstr, optdict)
    else
      #; [!nwnjc] parses short options.
      parse_short_options(optstr, optdict) { argv.delete_at(index) }
    end
  end
  #; [!3wmsy] returns command option values as a dict.
  return optdict
rescue OptionError => ex
  #; [!qpuxh] handles only OptionError when block given.
  raise unless block_given?()
  yield ex
  #; [!dhpw1] returns nil when OptionError handled.
  nil
end