You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: input_completer.rb
    path of file: ./repos/pry/lib/pry
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# taken from irb
# Implements tab completion for Readline in Pry
class Pry
  class InputCompleter
    NUMERIC_REGEXP = /^(-?(0[dbo])?[0-9_]+(\.[0-9_]+)?([eE]-?[0-9]+)?)\.([^.]*)$/.freeze
    ARRAY_REGEXP = /^([^\]]*\])\.([^.]*)$/.freeze
    SYMBOL_REGEXP = /^(:[^:.]*)$/.freeze
    SYMBOL_METHOD_CALL_REGEXP = /^(:[^:.]+)\.([^.]*)$/.freeze
    REGEX_REGEXP = %r{^(/[^/]*/)\.([^.]*)$}.freeze
    PROC_OR_HASH_REGEXP = /^([^\}]*\})\.([^.]*)$/.freeze
    TOPLEVEL_LOOKUP_REGEXP = /^::([A-Z][^:\.\(]*)$/.freeze
    CONSTANT_REGEXP = /^([A-Z][A-Za-z0-9]*)$/.freeze
    CONSTANT_OR_METHOD_REGEXP = /^([A-Z].*)::([^:.]*)$/.freeze
    HEX_REGEXP = /^(-?0x[0-9a-fA-F_]+)\.([^.]*)$/.freeze
    GLOBALVARIABLE_REGEXP = /^(\$[^.]*)$/.freeze
    VARIABLE_REGEXP = /^([^."].*)\.([^.]*)$/.freeze

    RESERVED_WORDS = %w[
      BEGIN END
      alias and
      begin break
      case class
      def defined do
      else elsif end ensure
      false for
      if in
      module
      next nil not
      or
      redo rescue retry return
      self super
      then true
      undef unless until
      when while
      yield
    ].freeze

    WORD_ESCAPE_STR = " \t\n\"\\'`><=;|&{(".freeze

    def initialize(input, pry = nil)
      @pry = pry
      @input = input
      if @input.respond_to?(:basic_word_break_characters=)
        @input.basic_
    
    def select_message(path, receiver, message, candidates)
      candidates.grep(/^#{message}/).collect do |e|
        next unless e =~ /^[a-zA-Z_]/

        path.call(receiver + "." + e)
      end.compact
    end

    # build_path separates the input into two parts: path and input.
    # input is the partial string that should be completed
    # path is a proc that takes an input and builds a full path.
    def build_path(input)
      # check to see if the input is a regex
      return proc { |i| i.to_s }, input if input[%r{/\.}]

      trailing_slash = input.end_with?('/')
      contexts = input.chomp('/').split(%r{/})
      input = contexts[-1]
      path = proc do |i|
        p = contexts[0..-2].push(i).join('/')
        p += '/' if trailing_slash && !i.nil?
        p
      end
      [path, input]
    end

    def ignored_modules
      # We could cache the result, but IRB is not loaded by default.
      # And this is very fast anyway.
      # By using this approach, we avoid Module#name calls, which are
      # relatively slow when there are a lot of anonymous modules defined.
      s = Set.new

      scanner = lambda do |m|
        next if s.include?(m) # IRB::ExtendCommandBundle::EXCB recurses.

        s << m
        m.constants(false).each do |c|
          value = m.const_get(c)
          scanner.call(value) if value.is_a?(Module)
        end
      end

      # FIXME: Add Pry here as well?
      %i[IRB SLex RubyLex RubyToken].each do |module_name|
        next unless Object.const_defined?(module_name)

        scanner.call(Object.const_get(module_name))
      end

      s.delete(IRB::Context) if defined?(IRB::Context)
      s
    end
  end