DSLs - What Happens When Your Grammar/Meta model Changes?
As you start getting into using Domain Specific Languages, one of the biggest issues is how to handle legacy statements in your DSL as your grammar evolves . . .
I'm actually presenting a paper at the DSM Workshop at OOPSLA on our approach to solving the problem (categorizing different types of grammar transformations to allow for the automatic transformation of statements within the language). However, I just saw a really nice posting on how MetaEdit+ handles this. Well worth checking out the video to get an idea of how powerful the system is. Very cool stuff!
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