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Edit: /opt/alt/ruby26/lib64/ruby/2.6.0/bundler/vendor/thor/lib/thor/parser/arguments.rb

class Bundler::Thor
  class Arguments #:nodoc: # rubocop:disable ClassLength
    NUMERIC = /[-+]?(\d*\.\d+|\d+)/

# Receives an array of args and returns two arrays, one with arguments
    # and one with switches.
    #
    def self.split(args)
      arguments = []

args.each do |item|
        break if item =~ /^-/
        arguments << item
      end

[arguments, args[Range.new(arguments.size, -1)]]
    end

def self.parse(*args)
      to_parse = args.pop
      new(*args).parse(to_parse)
    end

# Takes an array of Bundler::Thor::Argument objects.
    #
    def initialize(arguments = [])
      @assigns = {}
      @non_assigned_required = []
      @switches = arguments

arguments.each do |argument|
        if !argument.default.nil?
          @assigns[argument.human_name] = argument.default
        elsif argument.required?
          @non_assigned_required << argument
        end
      end
    end

def parse(args)
      @pile = args.dup

@switches.each do |argument|
        break unless peek
        @non_assigned_required.delete(argument)
        @assigns[argument.human_name] = send(:"parse_#{argument.type}", argument.human_name)
      end

check_requirement!
      @assigns
    end

def remaining
      @pile
    end

private

def no_or_skip?(arg)
      arg =~ /^--(no|skip)-([-\w]+)$/
      $2
    end

def last?
      @pile.empty?
    end

def peek
      @pile.first
    end

def shift
      @pile.shift
    end

def unshift(arg)
      if arg.is_a?(Array)
        @pile = arg + @pile
      else
        @pile.unshift(arg)
      end
    end

def current_is_value?
      peek && peek.to_s !~ /^-/
    end

# Runs through the argument array getting strings that contains ":" and
    # mark it as a hash:
    #
    #   [ "name:string", "age:integer" ]
    #
    # Becomes:
    #
    #   { "name" => "string", "age" => "integer" }
    #
    def parse_hash(name)
      return shift if peek.is_a?(Hash)
      hash = {}

while current_is_value? && peek.include?(":")
        key, value = shift.split(":", 2)
        raise MalformattedArgumentError, "You can't specify '#{key}' more than once in option '#{name}'; got #{key}:#{hash[key]} and #{key}:#{value}" if hash.include? key
        hash[key] = value
      end
      hash
    end

# Runs through the argument array getting all strings until no string is
    # found or a switch is found.
    #
    #   ["a", "b", "c"]
    #
    # And returns it as an array:
    #
    #   ["a", "b", "c"]
    #
    def parse_array(name)
      return shift if peek.is_a?(Array)
      array = []
      array << shift while current_is_value?
      array
    end

# Check if the peek is numeric format and return a Float or Integer.
    # Check if the peek is included in enum if enum is provided.
    # Otherwise raises an error.
    #
    def parse_numeric(name)
      return shift if peek.is_a?(Numeric)

unless peek =~ NUMERIC && $& == peek
        raise MalformattedArgumentError, "Expected numeric value for '#{name}'; got #{peek.inspect}"
      end

value = $&.index(".") ? shift.to_f : shift.to_i
      if @switches.is_a?(Hash) && switch = @switches[name]
        if switch.enum && !switch.enum.include?(value)
          raise MalformattedArgumentError, "Expected '#{name}' to be one of #{switch.enum.join(', ')}; got #{value}"
        end
      end
      value
    end

# Parse string:
    # for --string-arg, just return the current value in the pile
    # for --no-string-arg, nil
    # Check if the peek is included in enum if enum is provided. Otherwise raises an error.
    #
    def parse_string(name)
      if no_or_skip?(name)
        nil
      else
        value = shift
        if @switches.is_a?(Hash) && switch = @switches[name]
          if switch.enum && !switch.enum.include?(value)
            raise MalformattedArgumentError, "Expected '#{name}' to be one of #{switch.enum.join(', ')}; got #{value}"
          end
        end
        value
      end
    end

# Raises an error if @non_assigned_required array is not empty.
    #
    def check_requirement!
      return if @non_assigned_required.empty?
      names = @non_assigned_required.map do |o|
        o.respond_to?(:switch_name) ? o.switch_name : o.human_name
      end.join("', '")
      class_name = self.class.name.split("::").last.downcase
      raise RequiredArgumentMissingError, "No value provided for required #{class_name} '#{names}'"
    end
  end
end

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