Proposed class definition hierarchy
Add 2013 to copyright notices
test_zero_parameter_new passes

1 tests, 2 assertions, 0 failures, 0 errors, 0 skips
Move constant Alternative_ab_of_abc_10 to regexp_tree
Fix require_relative of assertion files
move default_message to ruby_assertions.rb
Move test_to_s to nested_array
Move case? to RegexpParse and pass initial tests.

1 tests, 3 assertions, 0 failures, 0 errors, 0 skips
Case now returns subclass name as symbol
to_regexp added and test passed

1 tests, 1 assertions, 0 failures, 0 errors, 0 skip
All simple tests for test_case pass.

1 tests, 12 assertions, 0 failures, 0 errors, 0 skips
Convert default_assertions_tests to default_test_case and test

17 tests, 37 assertions, 1 failures, 1 errors, 0 skips
New passing tests list
Move grep tests to generic_grep_test
Specialize RegexpTree to RegexpSequence
Move test_probability_space_regexp to regexp_alternative
Specialize RegexpTree to RegexpSequence
Update copyright, requires, comments
Convert RegexpParse into typed RegexpTree subtypes
Move constants into module Examples