Ruby Projects and Libraries

Ruby Projects and Libraries Vorleak Chy (vorleak.chy@gmail.com) Software Engineer Yoolk Inc http://groups.google.com/group/khmertech/

Agenda ,[object Object],[object Object],[object Object]

Projects and Using Code from Other Files ,[object Object],[object Object],[object Object],[object Object]

Basic File Inclusion ,[object Object],#file: string_extensions.rb class String def vowels self.scan(/[aeiou]/i) end end #file: vowel_test.rb require 'string_extensions' puts "This is a test".vowels.join('-')

Basic File Inclusion (Cont.) ,[object Object],#file: b.rb load 'a' puts "Hello from b.rb" load 'a' puts "Hello again from b.rb" #result output Hello from a.rb Hello from b.rb Hello from a.rb Hello again from b.rb #file: a.rb puts "Hello from a.rb"

Inclusions from Other Directories ,[object Object],[object Object],[object Object],[object Object],$:.each { |d| puts d } /usr/local/lib/ruby/site_ruby/1.8 /usr/local/lib/ruby/site_ruby/1.8/i686-darwin8.8.1 /usr/local/lib/ruby/site_ruby ...

Inclusions from Other Directories (Cont.) ,[object Object],[object Object],$:.push '/your/directory/here' require 'yourfile'

Logic and Including Code ,[object Object],$debug_mode = 0 require $debug_mode == 0 ? "normal-classes" : "debug-classes" %w{file1 file2 file3 file4 file5}.each { |l| require l }

Nested Inclusions ,[object Object],#file: a.rb require 'b' #And b.rb contains the following: require 'c' #And c.rb contains the following: def example puts "Hello!" end #And d.rb contains the following: require 'a' example

Libraries ,[object Object],[object Object],[object Object]

net/http Library ,[object Object],require 'net/http' Net::HTTP.get_print('www.rubyinside.com', '/') require 'net/http' url = URI.parse('http://www.rubyinside.com/') response = Net::HTTP.start(url.host, url.port) do |http| http.get(url.path) end content = response.body

OpenStruct Library ,[object Object],[object Object],[object Object],#struct Person = Struct.new(:name, :age) me = Person.new("Fred Bloggs", 25) me.age += 1 #openStruct require 'ostruct' person = OpenStruct.new person.name = "Fred Bloggs" person.age = 25

RubyGems ,[object Object],[object Object]

Installing RubyGems ,[object Object],[object Object],[object Object],[object Object]

Finding Gems ,[object Object],gem list ,[object Object],gem list --remote gem query --remote --name-matches class ,[object Object]

Installing a Simple Gem ,[object Object],gem install feedtools #if it can't install probably sudo gem install feedtools

Using Gems ,[object Object],[object Object],require 'rubygems' require 'RedCloth' r = RedCloth.new("this is a *test* of _using RedCloth_") puts r.to_html

Installing a More Complex Gem ,[object Object],gem install hpricot --source code.whytheluckystiff.net

Upgrading and Uninstalling Gems ,[object Object],gem update ,[object Object],gem uninstall feedtools $ gem uninstall rubyforge ,[object Object]

Thank-you for attending Feel free to join at http ://groups.google.com/group/khmertech/ KhmerTech

Ruby Projects and Libraries

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