{
 "metadata": {
  "language": "ruby",
  "name": "",
  "signature": "sha256:47cd0234c962d97a05ee29cb17ebea30796c16bb9ff9ee6afa7baf75bb5cb6bb"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# 3-5-12 `::`\u3092\u4f7f\u3063\u305f\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "Time.now"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 1,
       "text": [
        "2015-03-25 19:35:25 +0900"
       ]
      }
     ],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "Time::now"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 2,
       "text": [
        "2015-03-25 19:35:30 +0900"
       ]
      }
     ],
     "prompt_number": 2
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "\u3053\u306e\u8a18\u6cd5\u306frubocop\u306b\u6012\u3089\u308c\u308b"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# 3-5-13 \u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9\u306e\u53d6\u308a\u6d88\u3057"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "def greet\n",
      "  puts 'hola'\n",
      "end\n",
      "\n",
      "greet"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "hola\n"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "undef greet"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 4
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "greet"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "NameError",
       "evalue": "undefined local variable or method `greet' for main:Object",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mNameError\u001b[0m: undefined local variable or method `greet' for main:Object",
        "\u001b[37m(pry):9:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 5
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "undef\u306e\u4f7f\u3044\u9053\u306f\u66f4\u65b0\u7cfb\u3092\u9632\u3050\u3068\u304b\u306b\u4f7f\u3048\u308b\n",
      "ref: http://rochefort.hatenablog.com/entry/2013/05/21/214457"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# 3-5-14 \u30e1\u30bd\u30c3\u30c9\u306b\u5225\u540d\u3092\u3064\u3051\u308b"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "alias greet puts"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 6
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "greet 'hi'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "hi\n"
       ]
      }
     ],
     "prompt_number": 7
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "greet 'No thank you'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "No thank you\n"
       ]
      }
     ],
     "prompt_number": 8
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "undef puts"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 9
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "puts 'hoge'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "NoMethodError",
       "evalue": "undefined method `puts' for main:Object",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mNoMethodError\u001b[0m: undefined method `puts' for main:Object",
        "\u001b[37m(pry):14:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 10
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "greet 'fuga'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "fuga\n"
       ]
      }
     ],
     "prompt_number": 11
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "alias puts greet"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 12
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "puts 'foo'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "foo\n"
       ]
      }
     ],
     "prompt_number": 13
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "def foo\n",
      "  raise\n",
      "end"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 14,
       "text": [
        ":foo"
       ]
      }
     ],
     "prompt_number": 14
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "foo"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "RuntimeError",
       "evalue": "",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mRuntimeError\u001b[0m: ",
        "\u001b[37m(pry):19:in `foo'\u001b[0m",
        "\u001b[37m(pry):21:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 15
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "alias bar foo"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 17
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "bar"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "RuntimeError",
       "evalue": "",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mRuntimeError\u001b[0m: ",
        "\u001b[37m(pry):19:in `foo'\u001b[0m",
        "\u001b[37m(pry):24:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 18
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "undef foo"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 19
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "bar"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "RuntimeError",
       "evalue": "",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mRuntimeError\u001b[0m: ",
        "\u001b[37m(pry):19:in `foo'\u001b[0m",
        "\u001b[37m(pry):26:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 20
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# 3-6-1 \u6587\u5b57\u5217\u306e\u5165\u51fa\u529b"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "puts 1\n",
      "puts \"hoge\\n\"\n",
      "puts \"Python\", \"Ruby\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "1\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "hoge\n",
        "\n"
       ]
      },
      {
       "ename": "ArgumentError",
       "evalue": "wrong number of arguments (2 for 1)",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mArgumentError\u001b[0m: wrong number of arguments (2 for 1)",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/ostream.rb:36:in `puts'\u001b[0m",
        "\u001b[37m(pry):29:in `puts'\u001b[0m",
        "\u001b[37m(pry):29:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 21
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "IRuby\u306e\u30d0\u30b0\n",
      "\n",
      "\u672c\u6765\u306f\n",
      "\n",
      "```\n",
      "puts \"A\", \"B\"\n",
      "A\n",
      "B\n",
      "=> nil\n",
      "```"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "print \"Hi\"\n",
      "print 1, 2, 'hoge'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Hi"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "1"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "2"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "hoge"
       ]
      }
     ],
     "prompt_number": 22
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "sprintf '%04d', 1"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 23,
       "text": [
        "\"0001\""
       ]
      }
     ],
     "prompt_number": 23
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "format '%04d', 1"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 24,
       "text": [
        "\"0001\""
       ]
      }
     ],
     "prompt_number": 24
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "'%04d !!!!! %s' % [1, 'yeyyey']"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 25,
       "text": [
        "\"0001 !!!!! yeyyey\""
       ]
      }
     ],
     "prompt_number": 25
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "'\u3042\u306a\u305f\u306f%04d\u4eba\u76ee\u306e\u6765\u8a2a\u8005\u3067\u3059' % [10]"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 26,
       "text": [
        "\"\u3042\u306a\u305f\u306f0010\u4eba\u76ee\u306e\u6765\u8a2a\u8005\u3067\u3059\""
       ]
      }
     ],
     "prompt_number": 26
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "num = 10\n",
      "\"\u307b\u3052#{num}\u4eba\u76ee\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 27,
       "text": [
        "\"\u307b\u305210\u4eba\u76ee\""
       ]
      }
     ],
     "prompt_number": 27
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "'\u3042\u306a\u305f\u306f%<num>04d\u4eba\u76ee\u306e\u6765\u8a2a\u8005\u3067\u3059' % {num: 10}"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 28,
       "text": [
        "\"\u3042\u306a\u305f\u306f0010\u4eba\u76ee\u306e\u6765\u8a2a\u8005\u3067\u3059\""
       ]
      }
     ],
     "prompt_number": 28
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "/(?<num>\\d+)\u4eba\u76ee/ =~ '10\u4eba\u76ee'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 34,
       "text": [
        "0"
       ]
      }
     ],
     "prompt_number": 34
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "p num"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\"10\""
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n"
       ]
      },
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 35,
       "text": [
        "\"10\""
       ]
      }
     ],
     "prompt_number": 35
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "/(?<num2>\\d+)\u4eba\u76ee/.match '10\u4eba\u76ee'"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 41,
       "text": [
        "#<MatchData \"10\u4eba\u76ee\" num2:\"10\">"
       ]
      }
     ],
     "prompt_number": 41
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "num2"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "NameError",
       "evalue": "undefined local variable or method `num2' for main:Object",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mNameError\u001b[0m: undefined local variable or method `num2' for main:Object",
        "\u001b[37m(pry):59:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 42
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "'10\u4eba\u76ee' =~ /(?<num3>\\d+)\u4eba\u76ee/"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 43,
       "text": [
        "0"
       ]
      }
     ],
     "prompt_number": 43
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "num3"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "NameError",
       "evalue": "undefined local variable or method `num3' for main:Object",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[31mNameError\u001b[0m: undefined local variable or method `num3' for main:Object",
        "\u001b[37m(pry):61:in `<main>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:355:in `evaluate_ruby'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:323:in `handle_line'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:243:in `block (2 levels) in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:242:in `block in eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `catch'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pry-0.10.1/lib/pry/pry_instance.rb:241:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/backend.rb:28:in `eval'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:110:in `execute_request'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/kernel.rb:62:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:30:in `run_kernel'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/lib/iruby/command.rb:16:in `run'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/iruby-0.1.13/bin/iruby:6:in `<top (required)>'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `load'\u001b[0m",
        "\u001b[37m/Users/mic/.rbenv/versions/2.1.0/bin/iruby:23:in `<main>'\u001b[0m"
       ]
      }
     ],
     "prompt_number": 44
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "m = /(?<num2>\\d+)\u4eba\u76ee/.match '10\u4eba\u76ee'\n",
      "m[:num2]"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 45,
       "text": [
        "\"10\""
       ]
      }
     ],
     "prompt_number": 45
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "\u6b21\u56de\u306f P.109\u306e `Ruler` class\u3088\u308a"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [],
     "language": "python",
     "metadata": {},
     "outputs": []
    }
   ],
   "metadata": {}
  }
 ]
}