Merge branch 'master' of https://github.com/SamGerber/aa-prep-work

SamGerber · SamGerber · commit 9cdede5f4721 · 2015-10-31T19:19:37.000-05:00
diff --git a/pre-course/beginning_ruby/00-text_analyzer.rb b/pre-course/beginning_ruby/00-text_analyzer.rb
@@ -12,29 +12,51 @@
 # * average number of words per sentence
 # * average number of sentences in a paragraph
 
-lines = File.readlines("lib/text.txt")
+stopwords = %w{the a by on for of are with just but and to the my I has some in}
+
+# Check file path / usage
+if !ARGV.empty? && File.exist?(ARGV[0])
+  path = ARGV[0]
+else
+  puts "Usage: 00-text_analyzer.rb path"
+end
+  
+# Read file, count lines
+lines = File.readlines(path)
 line_count = lines.size
 text = lines.join
 
+# Count characters
 total_characters = text.length
-
 total_characters_nospaces = text.gsub(/\s+/, '').length
 
+# Count words
 word_count = text.split.length
+interesting_word_count = text.split.select{|word| !stopwords.include? word}.length
 
+# Count sentences and paragraphs
 sentence_count = text.split(/\.|\?|!/).length
-
 paragraph_count = text.split(/\n\n/).length
 
+# Calculate averages and percentage
 average_words_per_sentence = word_count / sentence_count
-
 average_sentences_per_paragraph = sentence_count / paragraph_count
+percentage_interesting_words = (100 * interesting_word_count.to_f / word_count).round
+
+# Summarize text
+sentences = text.gsub(/\s+/, ' ').strip.split(/\.|\?|!/)
+sentences_sorted = sentences.sort_by {|sentence| sentence.length}
+one_third = sentences_sorted.length / 3
+ideal_sentences = sentences_sorted.slice(one_third, one_third + 1)
+ideal_sentences = ideal_sentences.select {|sentence| sentence =~ /is|are/}
 
 puts "#{line_count} lines"
 puts "#{total_characters} characters"
 puts "#{total_characters_nospaces} characters (excluding spaces)"
-puts "#{word_count} words"
+puts "#{word_count} words, #{percentage_interesting_words}% of which are interesting"
 puts "#{sentence_count} sentences"
 puts "#{paragraph_count} paragraphs"
 puts "#{average_words_per_sentence} words per sentence (on average)"
 puts "#{average_sentences_per_paragraph} sentences per paragraph (on average)"
+puts "Summary:\n\n" + ideal_sentences.join(". ")
+puts "-- End of analysis"
diff --git a/pre-course/beginning_ruby/01-summarize.rb b/pre-course/beginning_ruby/01-summarize.rb
@@ -0,0 +1,17 @@
+# Beginning Ruby - Second Edition
+# Exercise from Chapter 4 - Developing your first Ruby Application
+# Sam Gerber
+
+text = %q{
+  Ruby is a great programming language. It is object-oriented
+  and has many groovy features. Some people don't like it, but that's
+  not our problem! It's easy to learn. It's great. To learn more about Ruby,
+  visit the official Ruby web site today.
+}
+
+sentences = text.gsub(/\s+/, ' ').strip.split(/\.|\?|!/)
+sentences_sorted = sentences.sort_by {|sentence| sentence.length}
+one_third = sentences_sorted.length / 3
+ideal_sentences = sentences_sorted.slice(one_third, one_third + 1)
+ideal_sentences = ideal_sentences.select {|sentence| sentence =~ /is|are/}
+puts ideal_sentences.join(". ")
diff --git a/pre-course/beginning_ruby/02-argv.rb b/pre-course/beginning_ruby/02-argv.rb
@@ -0,0 +1,5 @@
+# Beginning Ruby - Second Edition
+# Exercise from Chapter 4 - Developing your first Ruby Application
+# Sam Gerber
+
+puts ARGV.join('-')
diff --git a/pre-course/beginning_ruby/03-dungeon_text_adventure.rb b/pre-course/beginning_ruby/03-dungeon_text_adventure.rb
@@ -0,0 +1,79 @@
+# Beginning Ruby - Second Edition
+# Exercise from Chapter 6 - Building a Dungeon Text Adventure with Objects
+# Sam Gerber
+
+class Dungeon
+  attr_accessor :player
+  
+  def initialize(player_name)
+    @player = Player.new(player_name)
+    @rooms = []
+  end
+  
+  def add_room(reference, name, description, connections)
+    @rooms << Room.new(reference, name, description, connections)
+  end
+
+  def start(location)
+    @player.location = location
+    show_current_description
+  end
+  
+  def show_current_description
+    puts find_room_in_dungeon(@player.location).full_description
+  end
+
+  def find_room_in_dungeon(reference)
+    @rooms.detect{|room| room.reference == reference}
+  end
+
+  def find_room_in_direction(direction)
+    find_room_in_dungeon(@player.location).connections[direction]
+  end
+  
+  def go(direction)
+    puts "You go " + direction.to_s
+    @player.location = find_room_in_direction(direction)
+    show_current_description
+  end
+  
+  class Player
+    attr_accessor :name, :location
+    
+    def initialize(name)
+      @name = name
+    end
+  end
+  
+  class Room 
+    attr_accessor :reference, :name, :description, :connections
+    
+    def initialize(reference, name, description, connections)
+      @reference = reference
+      @name = name
+      @description = description
+      @connections = connections
+    end
+
+    def full_description
+      @name + "\n\nYou are in " + @description
+    end
+  end
+  
+end
+  
+# Create the main dungeon object
+my_dungeon = Dungeon.new("Fred Bloggs")
+
+# Add rooms to the dungeon
+my_dungeon.add_room(:largecave, "Large Cave", "a large cavernous cave", {
+  :west => :smallcave})
+  
+my_dungeon.add_room(:smallcave, "Small Cave", "a small, claustrophobic cave", {
+  :east => :largecave})
+  
+# Start the dungeon by placing the player in the large cave
+my_dungeon.start(:largecave)
+my_dungeon.go(:west)
+my_dungeon.go(:east)
+
