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| -rw-r--r-- | lib/observer.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/observer.rb b/lib/observer.rb index 0e3570ace1..64c7d81351 100644 --- a/lib/observer.rb +++ b/lib/observer.rb @@ -1,5 +1,7 @@ # -# observer.rb implements the _Observer_ object-oriented design pattern. +# observer.rb implements the _Observer_ object-oriented design pattern. The +# following documentation is copied, with modifications, from "Programming +# Ruby", by Hunt and Thomas; http://www.rubycentral.com/book/lib_patterns.html. # # == About # |