File rinruby.rb has 669 lines of code (exceeds 250 allowed). Consider refactoring.

Open

require 'matrix'

require File.expand_path(File.dirname(__FILE__) + '/rinruby/version.rb')

class RinRuby

Method find_R_dir_on_windows has a Cognitive Complexity of 39 (exceeds 5 allowed). Consider refactoring.

Open

    def find_R_dir_on_windows(cygwin = false, &b)
      res = []
      b ||= proc{}
      
      # Firstly, check registry

• Read up
  Read up

Method initialize has a Cognitive Complexity of 28 (exceeds 5 allowed). Consider refactoring.

Open

  def initialize(*args)
    @opts = {:echo=>true, :interactive=>true, :executable=>nil, 
        :port_number=>38442, :port_width=>1000, :hostname=>'127.0.0.1', :persistent => true}        
    if args.size==1 and args[0].is_a? Hash
      @opts.merge!(args[0])

• Read up
  Read up

Method prompt has a Cognitive Complexity of 26 (exceeds 5 allowed). Consider refactoring.

Open

  def prompt(regular_prompt="> ", continue_prompt="+ ")
    warn "'interactive' mode is off in this session " unless @interactive
    
    @readline ||= begin # initialize @readline at the first invocation
      require 'readline'

• Read up
  Read up

Class RinRuby has 24 methods (exceeds 20 allowed). Consider refactoring.

Open

class RinRuby

  require 'socket'

  # Exception for closed engine

Method eval_engine has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.

Open

  def eval_engine(r_expr, &echo_proc)
    raise EngineClosed if (@writer.closed? || @reader.closed?)
    
    run_num = (@eval_count += 1)
    @writer.print(<<-__TEXT__)

• Read up
  Read up

Method initialize has 57 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def initialize(*args)
    @opts = {:echo=>true, :interactive=>true, :executable=>nil, 
        :port_number=>38442, :port_width=>1000, :hostname=>'127.0.0.1', :persistent => true}        
    if args.size==1 and args[0].is_a? Hash
      @opts.merge!(args[0])

Method echo has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

Open

  def echo(enable=nil, stderr=nil)
    next_enabled = (enable == nil) ? @echo_enabled : (enable ? true : false)
    next_stderr = case stderr
    when nil
      (next_enabled ? @echo_stderr : false) 

• Read up
  Read up

Method eval_engine has 42 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def eval_engine(r_expr, &echo_proc)
    raise EngineClosed if (@writer.closed? || @reader.closed?)
    
    run_num = (@eval_count += 1)
    @writer.print(<<-__TEXT__)

Method pull_engine has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

  def pull_engine(string, singletons = true)
    raise EngineClosed if @writer.closed?
    
    pull_proc = proc{|var, socket|
      @writer.puts "#{RinRuby_Env}$pull(try(#{var}))"

• Read up
  Read up

Method socket_session has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def socket_session(&b)
    socket = @socket
    # TODO check still available connection?
    unless socket then
      t = Thread::new{socket = @server_socket.accept}

Method pull_engine has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def pull_engine(string, singletons = true)
    raise EngineClosed if @writer.closed?
    
    pull_proc = proc{|var, socket|
      @writer.puts "#{RinRuby_Env}$pull(try(#{var}))"

Method find_R_dir_on_windows has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    def find_R_dir_on_windows(cygwin = false, &b)
      res = []
      b ||= proc{}
      
      # Firstly, check registry

Method prompt has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def prompt(regular_prompt="> ", continue_prompt="+ ")
    warn "'interactive' mode is off in this session " unless @interactive
    
    @readline ||= begin # initialize @readline at the first invocation
      require 'readline'

Method assign_engine has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  def assign_engine(fun, value, r_type = nil)
    raise EngineClosed if @writer.closed?
    
    original_value = value
    

Method find_R_on_windows has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    def find_R_on_windows(cygwin = false)
      return 'R' if cygwin && system('which R > /dev/nul 2>&1')
      
      find_R_dir_on_windows(cygwin){|path|
        ['bin', 'bin/x64', 'bin/i386'].product(

• Read up
  Read up

Method method_missing has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

  def method_missing(symbol, *args)
    name = symbol.id2name
    if name =~ /(.*)=$/
      raise ArgumentError, "You shouldn't assign nil" if args==[nil]
      super if args.length != 1

• Read up
  Read up

Method eval has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

  def eval(string, echo_override = nil, &b)
    echo_proc = case echo_override # echo on when echo_proc == nil
    when Proc
      echo_override
    when nil

• Read up
  Read up

Method socket_session has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

  def socket_session(&b)
    socket = @socket
    # TODO check still available connection?
    unless socket then
      t = Thread::new{socket = @server_socket.accept}

• Read up
  Read up

Method if_passed has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

  def if_passed(string, r_func, opt = {}, &then_proc)
    assign_engine("#{RinRuby_Env}$assign.test.string", string, R_Character)
    res = socket_session{|socket|
      @writer.puts "#{RinRuby_Test_Result} <- #{r_func}(#{RinRuby_Test_String})"
      @writer.flush

• Read up
  Read up