Good books on Ruby based DSL [closed]

Answer 1

Here are some possible sources:

• Metaprogramming Ruby: Program Like the Ruby Pros (Prag Progs, Feb 2010)
• Martin Fowler's DSL Book (in beta)

Answer 2

• Martin Fowler's Domain Specific Languages book contains some Ruby examples in the Internal DSLs section. You can read the work in progress on his web site or if you've got a Safari account then it's available as a rough cut.

• There are also some slides here from an Agile DSL Development in Ruby presentation by Obie Fernandez

• Metaprogramming Ruby: Domain-Specific Languages for Programmers (PDF here) from an OSCON '05 session by Glenn Vanderburg

• There is a relevant chapter One Lair and Twenty Ruby DSLs in the ThoughtWorks Anthology which is available in PDF as an example chapter.