Split tutorial files

README.md

@@ -37,8 +37,7 @@ Usage
 
 ### Tutorial
 
-Try below senario on the irb/pry.
-Or excute "example/tutorial.rb".
+Try below senario or excute "example/**_tutorial.rb"
 
 ```ruby
 require 'io/nosey'

example/agree_tutorial.rb

@@ -0,0 +1,6 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# yes or no
+bool = agree? 'Do you like this API?: '
+show  bool

example/choose_tutorial.rb

@@ -0,0 +1,9 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# choose one
+choice =  \
+    choose 'Which Five do you like?: ',  5     => '5 is a Integer',
+                                      'five' => '"five" is a String',
+                                      :FIVE  => ':FIVE is a Symbol'
+show choice

example/default_tutorial.rb

@@ -0,0 +1,6 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# with default value
+answer = ask "What's your favorite?: ", default: 'ruby'
+show answer

example/handling_tutorial.rb

@@ -0,0 +1,8 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# handle return value
+age = ask 'How old are you?: ', input:   /\A(\d+)\z/,
+                              parse:   ->s{Integer s},
+                              return: 10..100
+show age

example/helper.rb

@@ -0,0 +1,10 @@
+# coding: us-ascii
+$VERBOSE = true
+
+require_relative '../lib/io/nosey'
+
+include IO::Nosey
+
+def show(obj)
+  puts "This script understands your input: #{obj.inspect}"
+end

example/multi_line_tutorial.rb

@@ -1,14 +1,5 @@
 # coding: us-ascii
-$VERBOSE = true
-
-# setup
-require_relative '../lib/io/nosey'
-
-include IO::Nosey
-
-def show(obj)
-  puts "This script understands your input: #{obj.inspect}"
-end
+require_relative 'helper'
 
 # multi line mode
 name = ask 'Write you poem and exit ctrl+d :) ', multi_line: true

example/noecho_tutorial.rb

@@ -0,0 +1,6 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# get secret word
+password = ask "What's your secret word?: ", echo: false
+show password

example/validator_tutorial.rb

@@ -0,0 +1,6 @@
+# coding: us-ascii
+require_relative 'helper'
+
+# with input validation
+name = ask 'What\'s your name?("firstname lastname"): ', input: /\A\w+ \w+\z/
+show name