The document discusses using Ruby to add more powerful programming capabilities to Excel spreadsheets. It describes Excel as a commonly used but limited documentation tool in Japan. Ruby is proposed as a better alternative to the Visual Basic for Applications (VBA) language used for programming in Excel due to Ruby's support for regular expressions, UTF-8, closures, and object-oriented programming. The document then explains two approaches for using Ruby with Excel: using the Win32 OLE binding, which is powerful but only for Windows, and using JRuby with the Apache POI library, which supports older Excel formats but is more complex. It introduces POILite as a simpler Ruby wrapper for POI that treats Excel sheets like arrays and supports

1. 光のツールExcelに
闇Rubyの力を注入してみた
～ Let's injection dark ruby power
to Holy Excel ～
!RubyKaigi 2011
@koduki

2. about me
● Name : Hiroaki Nakada
● @twitter_id:koduki
● github
– https://github.com/koduki

3. What is Excel ?

4. Very populer
Docmentation tool
in Japan

5. All document is written
by Excel.

6. All document

7. orz

8. But

9. This is good tool
to be written test data and so on.

10. But...

11. VBA
(Visual Basic for Appliction)

12. We generate SQL, source code,
XML, CSV, and so on, from Excel by
VBA

13. Example

15. Not Support reguler expression
Not Support UTF-8
Not Support Clouser
Poor Syntax
Not Support Real Object
Oriented
Poor Text Parsing

16. そんな言語で大丈夫か？

17. 一番 良いのを たのむ

18. Ruby

19. How do I use ruby for excel?
● Win32 OLE binding
● JRuby and POI

20. WinOLE32
● Powerful API.
● Not only excel, but also IE, Outlook, and so on.
● Only windows plattoform.

21. JRuby and POI
● Apache POI.(Java Library)
● Support Excel 97, 2000, and 2003.
● A little complex.

22. More simply

23. I make it.

24. POILite
● Very simple POI wrapper for jruby
https://github.com/koduki/POILite
● using Excel Sheet as simple arrray.
● you can write simple code.
● erb is very useful
● Example:Selenium Testcase Generator
https://github.com/koduki/Tesla

27. auto type convert

28. build jar file
> rake jar:package
> java -jar dist/poilite.jar
● Not Install Ruby!

29. 体が軽い！
もう何も怖くない

30. Nullpointer Exception, orz

31. We should write test !

32. Thank you.