Programming Research Group  -  University of Amsterdam  -  TR P9804 


                        Native Patterns


                          Alex Sellink
                          Chris Verhoef


 We  generate  a  native  pattern  language  from  a  context-free
 grammar.  So if we have the underlying grammar of code that needs
 to be analyzed, or renovated the pattern language comes for free.
 We  use  native  patterns for recognition and renovation of code.
 The pattern language is global in the  sense  that  patterns  can
 match   entire   programs.   We  illustrate  native  patterns  by
 discussing a  tool  that remedies a  notoriously  difficult  Year
 2000 problem using native patterns.


Categories and Subject Description:
D.2.6 [Software Engineering]: Programming Environments---Interactive;
D.2.7 [Software Engineering]: Distribution and Maintenance
                              ---Restructuring;
D.3.4 [Processors]: Parsing.

Additional Key Words and Phrases:
Reengineering, System renovation, Patterns, Plans, Cliches,
Native pattern language, Year 2000 problem, Leap year problem.