This document discusses using Ruby for "folk programming" or casual programming projects outside of web applications. It provides 4 examples of using Ruby to integrate different programs: adding bookmarks to Safari from Hatena using RubyCocoa++; accessing Twitter from QuickSilver using RubyCocoa++; controlling Quartz Composer nodes from Gainer using RubyCocoa++++; and enhancing Vim with a Ruby plugin for the Refe reference tool. The document argues that Ruby is a nice "glue" for connecting different worlds and that its dynamic nature makes it useful for plugins and debugging without restarting applications. It encourages readers to create something useful and share it with others using Ruby outside the browser.

1. Folk Programming
with Ruby
( Web Application )
mootoh

2. Folk ?

3. Fork
× by tetzl

4. Fork Ball
× by capn madd matt

5. Forksuke
× http://foxkeh.jp/downloads/materials/

6. Folk Programming !
•Like Folk Song
• Programming
Casually
by Rich Moffitt

7. Importance
• Introduced at
• see DK
• http://blog.livedoor.jp/dankogai/archives/51052844.html

8. More
Folks !

9. Folkish Trends
BASIC CGI
Web
Application
10 PRINT “Ruby” #!/usr/bin/ruby % rails ruby_web_app
20 END
require ‘cgi’
cgi = CGI.new
cgi.print “Ruby”
Present

10. But...

11. Yet Another Fun
in
none Web App !

12. Why
none
Web App ?

13. Everyone playing in
Web App
by cobalt123

14. Diversity

15. Explore
Rich
User Experience

16. Fun for Me !
by allfr3d

17. My
Recommendation

18. Plug-in
by Darren Hester

19. Why Plug-in ?
by imjustincognito

20. Easier than
creating
Great App

21. Like Remora

22. Lower
Hurdle

23. But...

24. Seems difficult...
by an untrained eye

25. No!

26. Use Ruby !

27. 4 Examples

28. Safari
+
Hatena Bookmark
RubyCocoa++

29. def addEntry(entry)
bmk = OSX::NSEntityDescription.objc_send(
:insertNewObjectForEntityForName, 'Bookmark',
:inManagedObjectContext, @context_)
# title
title = entry.elementsForName('title').first.stringValue
bmk.setValue_forKey(title, 'title')
# id
eid = entry.elementsForName('id').first.stringValue.to_s
pos = eid.rindex('-')
eid = eid[pos+1,eid.size]
bmk.setValue_forKey(eid, 'eid');
# links
entry.elementsForName('link').each do |url|
if
url.attributeForName('rel').stringValue.compare('related')
siteUrl = url.attributeForName('href').stringValue
bmk.setValue_forKey(siteUrl, 'siteUrl')
else
bookmarkUrl = url.attributeForName('href').stringValue
bmk.setValue_forKey('bookmarkUrl', 'bookmarkUrl')
end
end

30. QuickSilver
+
Twitter
RubyCocoa+++

31. class TwitterPluginAction < OSX::QSActionProvider
# reload itself
def reload
Shared.logger.info('reloading ' + __FILE__)
load(__FILE__)
end
# get screenName:password from PreferencePane
def name_pass
dict = OSX::NSUserDefaultsController.
sharedUserDefaultsController.values;
screen_name = dict.valueForKey("TwitterPreference.screenName")
password = dict.valueForKey("TwitterPreference.password")
screen_name.to_s + ':' + password
end

32. Aren’t they Web App ?

33. Quartz Composer
+
Gainer
RubyCocoa++++

34. def execute_atTime_withArguments(context, time, args)
unless @initialized
4.times do |i|
@gio.ain(i).on Funnel::PortEvent::CHANGE do |event|
@ain[i] = event.target.value
end
@gio.din(i).on Funnel::PortEvent::CHANGE do |event|
@din[i] = event.target.value
end
end
@initialized = false
end
4.times do |i|
setValue_forOutputKey(@ain[i], "ain_" + i.to_s)
setValue_forOutputKey(@din[i], "din_" + i.to_s)
end

35. Vim + Refe

36. function! s:RubyRefe2(args)
ruby << EOR
bitclust_path = VIM::evaluate("s:bitclust_path")
db_path = bitclust_path + '/../db-1_9_0'
args = ['-d', db_path, VIM::evaluate("a:args")]
$LOAD_PATH << bitclust_path + '/lib'
require 'stringio'
old_stdout = $stdout
$stdout = StringIO.new
require 'bitclust/searcher'
require 'kconv'
refe = BitClust::Searcher.new('refe.rb')
refe.parse args
refe.exec nil, args
str = $stdout.string.toutf8
buf = VIM::Buffer.current
while buf.count > 1
puts buf.count
buf.delete 1
end
buf.delete 1
str.split(/n/).each do |line|
buf.append buf.count, line.toutf8

37. Why Ruby ?

38. Nice Glue.
Between
Different Worlds.
by St. Murse

39. Debuggability
• Dynamic !
• reload from plugin itself def reload
load ‘./itself.rb’
• no need to restart app
end

40. Conclusion

41. Create Something
Useful for You !

42. and Us !

43. out of Browser !

44. with Ruby !

45. Thank you.
mootoh@gmail.com
http://deadbeaf.org/
Any pictures in these slides have their license.
Follow their links to see the original ones.
@mootoh