246 Chapter Thirteen Visual Representation for Regular Expressions
Abstract
People find it difficult to create and maintain abstractions. We often deal
with abstract tasks by using notations that make the structure of the ab-
straction visible. Programming-by-example (PBE) systems sometimes make
it more difficult to create abstractions. The user has to second-guess the re-
sults of the inference algorithm and sometimes cannot see any visual repre-
sentation of the inferred result, let alone manipulate it easily. SWYN (See
What You Need) addresses these issues in the context of constructing regu-
lar expressions ...
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