SPUDS: Simple Pictures for Updating Data Structures
نویسندگان
چکیده
We introduce SPUDS (Simple Pictures for Updating Data Structure) – a construct used in the visual programming language HyperPascal to simplify programming of dynamic data structure manipulations. Each SPUD comprises a picture of a data structure a linked list, for example before and after an op r tion. The Afte -Picture in a SPUD d fines an updated version of the data structure which should be Figure 1. A scope tree shows the whole program as a tree of subroutines.
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